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  Subjects -> VETERINARY SCIENCE (Total: 225 journals)
Showing 1 - 63 of 63 Journals sorted alphabetically
Abanico Veterinario     Open Access   (Followers: 1)
Acta Veterinaria     Open Access  
Acta Veterinaria Hungarica     Full-text available via subscription   (Followers: 1)
Acta Veterinaria Scandinavica     Open Access   (Followers: 1)
Advanced Research in Life Sciences     Open Access   (Followers: 2)
Advances in Small Animal Care     Full-text available via subscription  
African Journal of Wildlife Research     Full-text available via subscription   (Followers: 6)
Agrivet : Jurnal Ilmu-Ilmu Pertanian dan Peternakan / Journal of Agricultural Sciences and Veteriner)     Open Access   (Followers: 4)
AL-Qadisiyah Journal of Veterinary Medicine Sciences     Open Access  
American Journal of Animal and Veterinary Sciences     Open Access   (Followers: 8)
American Journal of Primatology     Hybrid Journal   (Followers: 15)
Analecta Veterinaria     Open Access  
Anatomia, Histologia, Embryologia: Journal of Veterinary Medicine Series C     Hybrid Journal   (Followers: 2)
Animal - Science Proceedings     Full-text available via subscription   (Followers: 2)
Animal Behaviour     Hybrid Journal   (Followers: 144)
Animal Feed Science and Technology     Hybrid Journal   (Followers: 7)
Animal Health Research Reviews     Hybrid Journal   (Followers: 4)
Animal Nutrition     Open Access   (Followers: 18)
Animal Reproduction Science     Hybrid Journal   (Followers: 7)
Animals     Open Access   (Followers: 11)
Annual Review of Animal Biosciences     Full-text available via subscription  
Anthrozoos : A Multidisciplinary Journal of The Interactions of People & Animals     Hybrid Journal   (Followers: 12)
Applied Animal Science     Hybrid Journal   (Followers: 1)
Archiva Zootehnica     Open Access  
Archives of Animal Nutrition     Hybrid Journal   (Followers: 8)
Archivos de Medicina Veterinaria     Open Access   (Followers: 1)
Asian Journal of Medical and Biological Research     Open Access   (Followers: 3)
Asian Journal of Poultry Science     Open Access   (Followers: 3)
Atatürk Üniversitesi Veteriner Bilimleri Dergisi / Atatürk University Journal of Veterinary Sciences     Open Access  
Austral Journal of Veterinary Sciences     Open Access   (Followers: 1)
Australian Equine Veterinarian     Full-text available via subscription   (Followers: 3)
Australian Veterinary Journal     Hybrid Journal   (Followers: 23)
Avances en Ciencias Veterinarias     Open Access  
Avian Pathology     Hybrid Journal   (Followers: 4)
Bangladesh Journal of Animal Science     Open Access   (Followers: 4)
Bangladesh Journal of Veterinary Medicine     Open Access  
Bangladesh Veterinarian     Open Access  
BMC Veterinary Research     Open Access   (Followers: 15)
Brazilian Journal of Veterinary Medicine     Open Access   (Followers: 1)
Buletin Peternakan : Bulletin of Animal Science     Open Access   (Followers: 1)
Buletin Veteriner Udayana     Open Access   (Followers: 1)
Bulletin of Animal Health and Production in Africa     Full-text available via subscription   (Followers: 3)
Bulletin of University of Agricultural Sciences and Veterinary Medicine Cluj-Napoca : Food Science and Technology     Open Access   (Followers: 1)
Canadian Journal of Veterinary Research     Full-text available via subscription   (Followers: 14)
Case Reports in Veterinary Medicine     Open Access   (Followers: 3)
CES Medicina Veterinaria y Zootecnia     Open Access  
Chilean Journal of Agricultural & Animal Sciences     Open Access  
Ciencia Veterinaria     Open Access  
Cogent Food & Agriculture     Open Access  
Companion Animal     Full-text available via subscription   (Followers: 8)
Compendio de Ciencias Veterinarias     Open Access  
Domestic Animal Endocrinology     Hybrid Journal   (Followers: 6)
Equine Health     Full-text available via subscription   (Followers: 4)
Equine Veterinary Education     Hybrid Journal   (Followers: 10)
Equine Veterinary Journal     Hybrid Journal   (Followers: 19)
Ethiopian Veterinary Journal     Open Access   (Followers: 3)
EUREKA : Health Sciences     Open Access  
FAVE Sección Ciencias Veterinarias     Open Access  
Folia Veterinaria     Open Access  
Frontiers in Veterinary Science     Open Access   (Followers: 3)
Global Journal of Animal Scientific Research     Open Access   (Followers: 1)
Human & Veterinary Medicine - International Journal of the Bioflux Society     Open Access   (Followers: 4)
ILAR Journal     Hybrid Journal   (Followers: 3)
Indian Journal of Animal Sciences     Open Access   (Followers: 2)
Indian Journal of Veterinary Anatomy     Full-text available via subscription   (Followers: 2)
Indonesia Medicus Veterinus     Open Access  
Indonesian Journal of Animal and Veterinary Sciences     Open Access   (Followers: 1)
Intas Polivet     Full-text available via subscription  
International Journal of Tropical Veterinary and Biomedical Research     Open Access  
International Journal of Veterinary Science and Medicine     Open Access   (Followers: 6)
International Journal of Veterinary Science and Research     Open Access   (Followers: 1)
InVet     Open Access  
Iranian Journal of Applied Animal Science     Open Access   (Followers: 1)
Iranian Journal of Veterinary Surgery     Open Access  
Iraqi Journal of Veterinary Sciences     Open Access  
Irish Veterinary Journal     Open Access   (Followers: 4)
Journal of Veterinary Science & Technology     Open Access   (Followers: 5)
Journal of Advanced Veterinary Research     Open Access   (Followers: 1)
Journal of Animal Physiology and Animal Nutrition     Hybrid Journal   (Followers: 7)
Journal of Buffalo Science     Hybrid Journal  
Journal of Equine Veterinary Science     Hybrid Journal   (Followers: 14)
Journal of Exotic Pet Medicine     Full-text available via subscription   (Followers: 5)
Journal of Feline Medicine & Surgery     Hybrid Journal   (Followers: 6)
Journal of Feline Medicine and Surgery Open Reports     Open Access   (Followers: 2)
Journal of Parasite Science     Open Access   (Followers: 1)
Journal of Research in Forestry, Wildlife and Environment     Open Access   (Followers: 5)
Journal of Small Animal Practice     Hybrid Journal   (Followers: 21)
Journal of the Hellenic Veterinary Medical Society     Open Access   (Followers: 1)
Journal of the Selva Andina Research Society     Open Access  
Journal of the South African Veterinary Association     Open Access   (Followers: 1)
Journal of Veterinary and Animal Sciences     Open Access  
Journal of Veterinary Behavior     Hybrid Journal   (Followers: 2)
Journal of Veterinary Cardiology     Hybrid Journal   (Followers: 7)
Journal of Veterinary Dentistry     Full-text available via subscription   (Followers: 1)
Journal of Veterinary Diagnostic Investigation     Hybrid Journal   (Followers: 12)
Journal of Veterinary Emergency and Critical Care     Hybrid Journal   (Followers: 20)
Journal of Veterinary Forensic Sciences     Open Access   (Followers: 1)
Journal of Veterinary Internal Medicine     Open Access   (Followers: 29)
Journal of Veterinary Medical Education     Partially Free   (Followers: 11)
Journal of Veterinary Medical Research     Open Access   (Followers: 1)
Journal of Veterinary Medicine     Open Access   (Followers: 12)
Journal of Veterinary Pharmacology and Therapeutics     Hybrid Journal   (Followers: 6)
Journal of Veterinary Research     Open Access   (Followers: 4)
Journal of Veterinary Science & Medical Diagnosis     Hybrid Journal   (Followers: 5)
Journal of Veterinary Science & Medicine     Open Access  
Jurnal Agripet     Open Access   (Followers: 1)
Jurnal Ilmu dan Kesehatan Hewan (Veterinary Science and Medicine Journal)     Open Access   (Followers: 1)
Jurnal Medik Veteriner     Open Access  
Jurnal Medika Veterinaria     Open Access  
Jurnal Sain Veteriner     Open Access  
Jurnal Veteriner     Open Access   (Followers: 1)
Kenya Veterinarian     Full-text available via subscription   (Followers: 2)
kleintier konkret     Hybrid Journal  
Livestock     Full-text available via subscription   (Followers: 1)
Macedonian Veterinary Review     Open Access  
Matrix Science Medica     Open Access  
Medical Mycology     Open Access   (Followers: 3)
Medical Mycology Case Reports     Open Access  
Medicina Veterinária (UFRPE)     Open Access  
Nepalese Veterinary Journal     Open Access  
New Zealand Veterinary Journal     Full-text available via subscription   (Followers: 13)
New Zealand Veterinary Nurse     Full-text available via subscription   (Followers: 2)
Nigerian Veterinary Journal     Open Access  
Nutrición Animal Tropical     Open Access   (Followers: 3)
Onderstepoort Journal of Veterinary Research     Open Access   (Followers: 4)
Open Journal of Animal Sciences     Open Access   (Followers: 4)
Open Journal of Veterinary Medicine     Open Access   (Followers: 2)
Pet Behaviour Science     Open Access   (Followers: 1)
pferde spiegel     Hybrid Journal  
Polish Journal of Veterinary Sciences     Open Access   (Followers: 1)
Preventive Veterinary Medicine     Hybrid Journal   (Followers: 10)
Rassegna di Diritto, Legislazione e Medicina Legale Veterinaria     Open Access  
Reproduction in Domestic Animals     Hybrid Journal   (Followers: 2)
Research & Reviews : Journal of Veterinary Science and Technology     Open Access   (Followers: 1)
Research in Veterinary Science     Hybrid Journal   (Followers: 11)
Research Journal of Veterinary Sciences     Open Access   (Followers: 5)
Revista Brasileira de Ciência Veterinária     Open Access  
Revista Brasileira de Higiene e Sanidade Animal     Open Access   (Followers: 1)
Revista Brasileira de Zootecnia     Open Access   (Followers: 1)
Revista Ciencias Veterinarias     Open Access  
Revista Colombiana de Ciencia Animal     Open Access  
Revista Colombiana de Ciencias Pecuarias (Colombian journal of animal science and veterinary medicine)     Open Access   (Followers: 1)
Revista Complutense de Ciencias Veterinarias     Open Access  
Revista de Ciência Veterinária e Saúde Pública     Open Access  
Revista de Ciências Agroveterinárias     Open Access  
Revista de Educação Continuada em Medicina Veterinária e Zootecnia     Open Access  
Revista de Investigaciones Veterinarias del Perú     Open Access  
Revista de Medicina Veterinaria     Open Access  
Revista de Salud Animal     Open Access  
Revista Mexicana de Ciencias Pecuarias     Open Access   (Followers: 1)
Revista MVZ Córdoba     Open Access  
Revista Veterinaria     Open Access  
Revue Marocaine des Sciences Agronomiques et Vétérinaires     Open Access  
Revue Vétérinaire Clinique     Full-text available via subscription  
Salud y Tecnología Veterinaria     Open Access  
Schweizer Archiv für Tierheilkunde     Hybrid Journal  
Science and Animal Health     Open Access  
Small Ruminant Research     Hybrid Journal   (Followers: 2)
Spei Domus     Open Access  
Sri Lanka Veterinary Journal     Open Access  
SVU-International Journal of Veterinary Sciences     Open Access  
Tanzania Veterinary Journal     Full-text available via subscription   (Followers: 1)
team.konkret     Open Access  
Theoretical and Applied Veterinary Medicine     Open Access  
Theriogenology     Hybrid Journal   (Followers: 2)
Tierärztliche Praxis Ausgabe G: Großtiere / Nutztiere     Hybrid Journal  
Tierärztliche Praxis Ausgabe K: Kleintiere / Heimtiere     Hybrid Journal  
Topics in Companion Animal Medicine     Hybrid Journal   (Followers: 4)
Transboundary and Emerging Diseases     Hybrid Journal   (Followers: 4)
Trends in Parasitology     Full-text available via subscription   (Followers: 10)
Tropical Animal Health and Production     Open Access   (Followers: 1)
Tropical Veterinarian     Full-text available via subscription   (Followers: 1)
Turkish Journal of Veterinary Research     Open Access  
UK Vet Equine     Full-text available via subscription   (Followers: 1)
Ukrainian Journal of Veterinary and Agricultural Sciences     Open Access  
Van Veterinary Journal     Open Access  
VCOT Open     Open Access   (Followers: 2)
veterinär spiegel     Hybrid Journal   (Followers: 1)
Veterinaria     Open Access  
Veterinaria (Montevideo)     Open Access  
Veterinaria México     Open Access  
Veterinaria México OA     Open Access  
Veterinarski Glasnik     Open Access  
Veterinary Anaesthesia and Analgesia     Hybrid Journal   (Followers: 16)
Veterinary and Animal Science     Open Access  
Veterinary and Comparative Oncology     Hybrid Journal   (Followers: 13)
Veterinary and Comparative Orthopaedics and Traumatology     Hybrid Journal   (Followers: 1)
Veterinary Clinical Pathology     Hybrid Journal   (Followers: 9)
Veterinary Clinics of North America: Equine Practice     Hybrid Journal   (Followers: 11)
Veterinary Clinics of North America: Exotic Animal Practice     Full-text available via subscription   (Followers: 5)
Veterinary Clinics of North America: Food Animal Practice     Full-text available via subscription   (Followers: 4)
Veterinary Clinics of North America: Small Animal Practice     Full-text available via subscription   (Followers: 22)
Veterinary Dermatology     Hybrid Journal   (Followers: 8)
Veterinary Immunology and Immunopathology     Hybrid Journal   (Followers: 11)
Veterinary Journal     Hybrid Journal   (Followers: 18)
Veterinary Journal of Mehmet Akif Ersoy University / Mehmet Akif Ersoy Üniversitesi Veteriner Fakültesi Dergisi     Open Access  
Veterinary Medicine and Science     Open Access   (Followers: 2)
Veterinary Medicine International     Open Access   (Followers: 5)
Veterinary Medicine: Research and Reports     Open Access   (Followers: 1)
Veterinary Microbiology     Hybrid Journal   (Followers: 8)

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Frontiers in Veterinary Science
Journal Prestige (SJR): 0.738
Citation Impact (citeScore): 2
Number of Followers: 3  

  This is an Open Access Journal Open Access journal
ISSN (Online) 2297-1769
Published by Frontiers Media Homepage  [96 journals]
  • Genetic Characterization and Phylogenetic Analysis of Fasciola Species
           Isolated From Yaks on Qinghai-Tibet Plateau, China

    • Authors: Xing Gao, Dongjing Wang, Zhao Zhang, Chuxian Quan, Shimeng Zhou, Kewei Li, Yan Li, Suonan Zhao, Xiangying Kong, Muhammad Fakhar-e-Alam Kulyar, Jiangyong Zeng, Jiakui Li
      Abstract: The present study determined the complete mitochondrial DNA (mt DNA) sequence of Fasciola intermediate (isolated from yaks) based on gene content and genome organization. According to our findings, the genome of Fasciola intermediate was 13,960 bp in length, containing 2 ribosomal RNA (rRNA) genes, 12 protein-coding genes (PCGs), and 22 transfer RNA (tRNA) genes. The A+T content of genomes was 63.19%, with A (15.17%), C (9.31%), G (27.51%), and T as the nucleotide composition (48.02%). Meanwhile, the results showed negative AT-skew (-0.52) and positive GC-skew (0.494). The AT bias significantly affected both the codon usage pattern and amino acid composition of proteins. There were 2715 codons in all 12 protein-coding genes, excluding termination codons. Leu (16.72%) was the most often used amino acid, followed by Val (12.74%), Phe (10.90%), Ser (10.09%), and Gly (8.39%). A phylogenetic tree was built using Maximum-Likelihood (ML) through MEGA 11.0 software. The entire mt DNA sequence of Fasciola intermediate gave more genetic markers for investigating Trematoda population genetics, systematics, and phylogeography. Hence, for the first time, our study confirmed that yaks on the Qinghai-Tibet plateau have the infestation of Fasciola intermediate parasite.
      PubDate: 2022-05-12T00:00:00Z
       
  • Phenotypic Characterization of Idiopathic Epilepsy in Border Collies

    • Authors: Koen M. Santifort, Elise Bertijn, Sofie F. M. Bhatti, Peter Leegwater, Andrea Fischer, Paul J. J. Mandigers
      Abstract: The prevalence of idiopathic epilepsy (IE) within the Border Collie (BC) dog breed is high. The aim of this retrospective study was to describe the phenotype of BCs with IE and assess correlations between phenotypic variables and owner-provided quality-of-life (QoL) scores. Data of BCs diagnosed with IE during the period of five consecutive years were retrospectively analyzed. All the dogs were presented at least once to a veterinary neurology specialist at one of three veterinary referral hospitals and most were under the continued medical care of that specialist. Owners were requested to complete a standardized online questionnaire including quality-of-life (QoL) scoring questions. Data of a total of 116 BC dogs were included for analysis. The median age at onset of the first epileptic seizure (ES) was 33.5 months (6–188). A total of 34/86 (40%) of medically treated dogs received 1 antiseizure medication (ASM) and 52/86 (60%) received ≥2 ASMs. Phenobarbital was the most commonly employed ASM, used in 70/86 of treated dogs (81%). Four or more side effects were observed in 20/86 (23%) of treated dogs. Age at onset of first ES was significantly lower for dogs having experienced cluster seizures (CSs), status epilepticus (SE), or both (median 27 months) vs. dogs that had not experienced CS or SE (median 43 months). The QoL of BC with IE was scored with a median score of 7 out of 10. Owners scored their dog's QoL to have declined by a median of 30% during the course of life with IE with 39% (37/95) of owners scoring their dog's QoL to have declined by ≥50%. This study confirms the association of age at onset of first ES with the severity of epilepsy (e.g., presence of CS and/or SE) and further characterizes the phenotype of IE in BC dogs. QoL of BC can be heavily impacted by IE.
      PubDate: 2022-05-12T00:00:00Z
       
  • Short Communication: Efficacy of Two Commercial Disinfectants on
           Paenibacillus larvae Spores

    • Authors: Joseph Kiriamburi, Jamleck Muturi, Julius Mugweru, Eva Forsgren, Anna Nilsson
      Abstract: Paenibacillus larvae is a spore-forming bacterium causing American foulbrood (AFB) in honey bee larvae. The remains of a diseased larva contains billions of extremely resilient P. larvae spores viable for decades. Burning clinically symptomatic colonies is widely considered the only workable strategy to prevent further spread of the disease, and the management practices used for decontamination requires high concentrations of chemicals or special equipment. The aim of this study was to test and compare the biocidal effect of two commercially available disinfectants, “Disinfection for beekeeping” and Virkon S on P. larvae. The two products were applied to P. larvae spores in suspension as well as inoculated on two common beehive materials, wood and Styrofoam. “Disinfection for beekeeping” had a 100 % biocidal effect on P. larvae spores in suspension compared to 87.0–88.6% for Virkon S which, however, had a significantly better effect on P. larvae on Styrofoam. The two disinfectants had similar effect on infected wood material.
      PubDate: 2022-05-12T00:00:00Z
       
  • Construction of the waaF Subunit and DNA Vaccine Against Escherichia coli
           in Cow Mastitis and Preliminary Study on Their Immunogenicity

    • Authors: Hua Wang, Ligang Yuan, Tao Wang, Lu Cao, Fukang Liu, Juanjuan Song, Yong Zhang
      Abstract: Escherichia coli (E. coli) is one of the major pathogenic bacteria in bovine mastitis, which usually triggers systemic symptoms by releasing lipopolysaccharide (LPS). waaF is the core in LPS pathogenicity. In this study, a new waaF vaccine candidate was identified, constructed with the pcDNA3.1 (+)HisB-waaF plasmid to create to a DNA vaccine (pcwaaF), and transfected into MCF-7 cells to produce recombinant waaF subunit vaccine (rwaaF). After that, the safety of the two vaccine candidates was evaluated in mouse model. Immunogenicity and mortality of challenged mice were compared in 20 and 40 μg per dose, respectively. The results showed that rwaaF and pcwaaF were successfully constructed and the complete blood count and serum biochemical indicated that both of the vaccine candidates were safe (p> 0.05). In addition, histopathological staining showed no obvious pathological changes. The immune response induced by rwaaF was significantly higher than that of pcwaaF (p < 0.01), indicated by levels of serum concentration of IgG IL-2, IL-4, and IFN-γ, and feces concentration of sIgA. Survival rates of mice in rwaaF groups (both 80%) were also higher than in the pcwaaF groups (40 and 50%, respectively). Comparing the safety, immunogenicity, and E. coli challenge of two vaccine candidates, rwaaF had the better effect and 20 μg rwaaF was more economical. In conclusion, this study demonstrates the utility of a new E. coli vaccine and provides a rationale for further investigation of bovine mastitis therapy and management.
      PubDate: 2022-05-12T00:00:00Z
       
  • Effects of Glycyrrhiza Polysaccharides on Chickens' Intestinal Health and
           Homeostasis

    • Authors: Yu Wu, Chenyang Wu, Yanyun Che, Tao Zhang, Chen Dai, Audrey D. Nguyễn, Kun Duan, Yanyu Huang, Nannan Li, Hui Zhou, Xin Wan, Yuedi Wang, Hongjun Lei, Ping Hao, Caiyue Li, Yi Wu
      Abstract: The overuse of antibiotics in poultry farming causes the accumulation of drug residue in animals' bodies and the occurrence of antibiotic-resistant bacteria, which not only compromise animals' health but ultimately endanger human health. Thus, there is an urgent need for a novel poultry feed additive to substitute for excessive antibiotics. Glycyrrhiza polysaccharides (GPS) derived from Chinese licorice have shown promising immunomodulatory effects in previous studies. The present study investigated the pharmacological effects of GPS on poultry intestines to assess whether it can be used as a feed additive. The results show that GPS can increase production of sIgA, promote the secretion activity of goblet cells, alter the gut microbial composition and lead to changes in short-chain fatty acids. GPS also elevated both Th1 and Th2 immune responses by facilitating the expression of IL-2, IL-4, IL-1β, and IFN-γ while increasing the proportion of both CD4+ and CD8+ cells in the intestine. Moreover, the results of 16S rRNA gene sequencing showed that GPS could significantly change intestinal microbiota composition in the intestine, evidenced by the increased proportion of Bacteroides, Butyricicoccus and Eisenbergiella, as well as a decreased portion of Erysipelatoclostridium, leading to a healthier intestinal microbiota composition for the host. Taken together, it can be concluded that GPS is safe to use as a novel feed additive that can be used as an alternative to prophylactic antibiotics in poultry feeding.
      PubDate: 2022-05-12T00:00:00Z
       
  • Blackleg in Cattle in the Irkutsk Region

    • Authors: Andrei A. Blokhin, Nadezhda N. Toropova, Olga A. Burova, Ivan V. Iashin, Olga I. Zakharova
      Abstract: Blackleg is an acute, toxic, infectious, non-contagious disease of domestic and wild ruminants that occurs while the animals are pastured. This article describes an outbreak of blackleg on a farm in Siberia (Russia) in 2019. We provide a detailed description of the cases based on the results of comprehensive diagnostic and epidemiological investigations. For description of case and evaluation, we used the following methods: owner observations, descriptive epidemiology, clinical diagnostics, pathological examination and bacteriology. The distinctive features (in addition to the characteristic features) were as follows: the outbreak of the disease occurred in early spring when there was abundant snow cover and under unfavorable living conditions of animals and traumas; the disease appeared in both vaccinated and unvaccinated cattle; the characteristic clinical signs were low-grade fever, the absence of crepitus, and the presence of haematomas containing erythrocytes with basophilic granularity; thrombs in vessel and vacuolization in tissue of the adrenal gland. This paper aimed to present classical and new clinical and pathology changes in cattle with blackleg in winter conditions of Russian Siberia.
      PubDate: 2022-05-12T00:00:00Z
       
  • Judgment Bias During Gestation in Domestic Pigs

    • Authors: Emily V. Bushby, Sheena C. Cotter, Anna Wilkinson, Mary Friel, Lisa M. Collins
      Abstract: In humans and rats, changes in affect are known to occur during pregnancy, however it is unknown how gestation may influence mood in other non-human mammals. This study assessed changes in pigs' judgment bias as a measure of affective state throughout gestation. Pigs were trained to complete a spatial judgment bias task with reference to positive and negative locations. We tested gilts before mating, and during early and late gestation, by assessing their responses to ambiguous probe locations. Pigs responded increasingly negatively to ambiguous probes as gestation progressed and there were consistent inter-individual differences in baseline optimism. This suggests that the pigs' affective state may be altered during gestation, although as a non-pregnant control group was not tested, an effect of learning cannot be ruled out. These results suggest that judgment bias is altered during gestation in domestic pigs, consequently raising novel welfare considerations for captive multiparous species.
      PubDate: 2022-05-12T00:00:00Z
       
  • Oral Dimensions Related to Bit Size in Adult Horses and Ponies

    • Authors: Mirjami Anttila, Marja Raekallio, Anna Valros
      Abstract: A bit that fits is essential for horse welfare and good communication with the ridden, driven or led horses. The bit causes pressure on the sensitive structures of the horse mouth. The aim of this study was to investigate variation in oral dimensions related to bit fit in adult horses and ponies and to evaluate bit fit by comparing oral dimensions with the currently used bit size selected by the horse owner. The study population consisted of 554 horses and ponies, 308 geldings and 246 mares, age 5-29 years, presented for routine dental care. Oral dimensions: mouth width, distance between upper and lower jaw, tongue thickness and lower jaw width, were measured under sedation. Oral dimensions were compared with the most used bit mouthpiece size presented to the researcher by the owner. Bit type and material were recorded. All oral dimensions in adult horses and ponies varied by breed and sex. Mouth width and distance between upper and lower jaw correlated positively with age. Oral dimensions were significantly smaller in mares than in geldings. In coldblood Finnhorses, oral dimensions were greater than in other breeds; in ponies they were smaller. The majority of the oral dimensions correlated positively with each other. Lower jaw width did not correlate with tongue thickness. It was common to use a bit that did not fit the horse: the bit was either too short or too long (over 10 mm longer) compared to mouth width, compressed the tongue in between the upper and lower jaw, or the center link was of similar length compared to lower jaw width, thus possibly causing pressure points or a nutcracker effect on the bars of the lower jaw. Horses had, on average, space for a 14 mm thick bit without compressing the tongue. The results of this study can aid in choosing a horse bit size that fits correctly and does not cause discomfort. It is recommended that the fit of the bit is evaluated regularly as the horse ages.
      PubDate: 2022-05-12T00:00:00Z
       
  • Atypical Mycosis in Psittacine Birds: A Retrospective Study

    • Authors: Livio Galosi, Christian Falcaro, Patrizia Danesi, Claudia Zanardello, Sara Berardi, Lucia Biagini, Anna-Rita Attili, Giacomo Rossi
      Abstract: A retrospective study was conducted on parrots submitted from necropsy to the Department of Veterinary Pathology, School of Biosciences and Veterinary, University of Camerino, Italy, from 2007 to 2018. From a total of 2,153 parrots examined at post-mortem, four cases were diagnosed with atypical mycosis and were considered for determination of the fungus species by PCR. A Fischer's lovebird (Agapornis fischeri), Peach-faced lovebirds (Agapornis roseicollis), and two Blue and Gold Macaws (Ara ararauna) from four different aviaries died after some days of lethargy and ruffled feathers. Records of gross necropsy and histopathological exams (H&E, PAS, and Grocott stain) were described and biomolecular analyses were carried out. No specific gross lesions were appreciated at necropsy, while histopathology evidenced a systemic mycosis in several organs, particularly in the lungs. In affected organs, broad and non-septate hyphae, suggestive of mycoses, were observed. Molecularly, Mucor racemosus (Fischer's lovebird) and M. circinelloides (Peach-faced lovebirds) were identified from formalin-fixed and paraffin-embedded (FFPE) lung and liver tissue. In addition, Alternaria alternata and Fusicladium spp. (respectively in male and female Blue and Gold macaws) were identified in FFPE tissue from several organs; whereas the role of Mucor spp. as true pathogens is well-demonstrated, and the behavior of A. alternata and Fusicladium spp. in macaws as opportunistic pathogens have been discussed. To our knowledge, this report is the first one reporting mucormycosis caused by M. racemosus and M. circinelloides in lovebirds, and A. alternata and Fusicladium spp. in macaws.
      PubDate: 2022-05-12T00:00:00Z
       
  • Dietary Fiber Supplementation in Gestating Sow Diet Improved Fetal Growth
           and Placental Development and Function Through Serotonin Signaling Pathway
           

    • Authors: Yang Li, Min Yang, Lijia Zhang, Zhengyu Mao, Yan Lin, Shengyu Xu, Zhengfeng Fang, Lianqiang Che, Bin Feng, Jian Li, Yong Zhuo, De Wu
      Abstract: The experiment was conducted to investigate the effects of dietary fiber (DF) supplementation in gestation diet on fetal growth and placental development and function and explore the possible mechanism of DF improving sow reproductive performance. A total of 16 Large White × Landrace crossbred gilts were randomly allotted to two groups and fed a semi-purified basal diet [non-fiber (NF) group, 0.1% total DF] or a basal diet supplemented with 8.33 g/kg inulin and 200 g/kg cellulose [Fiber (F) group] during the gestation period. On day 106 of gestation, five sows per group were chosen and slaughtered for sample collection. Results showed that DF supplementation during gestation increased the total fetal weight and placental weight on day 106 of gestation; elevated serum serotonin concentration; increased concentrations of serotonin and short-chain fatty acids (acetate, propionate, and butyrate), as well as tryptophan hydroxylase 1 expression, in colon; elevated serotonin and progesterone concentrations and up-regulated the serotonin transporter, cytochrome P450 11A1, and insulin-like growth factor 2 expressions in the placenta. Besides, the sows in the F group had microbial community structures distinct from those in the NF group. Supplementation of DF in gestation diet increased the Coprococcus 3 abundance that was positively correlated with colonic serotonin concentration, while significantly decreasing the Family XIII AD3011 group abundance which was negatively correlated with colonic serotonin concentration. Above all, DF supplementation in the gestation diet could increase placental serotonin levels by promoting maternal serotonin synthesis in the colon and the transport from the mother to the placenta in sows, and then improve placental development and function, finally promoting fetal growth. Our findings provided insight into the mechanisms of DF improving sow reproductive performance.
      PubDate: 2022-05-12T00:00:00Z
       
  • Comparative Review of Brucellosis in Small Domestic Ruminants

    • Authors: Carlos Alberto Rossetti, Estefanía Maurizio, Ursula Amaranta Rossi
      Abstract: Brucella melitensis and Brucella ovis are the primary etiological agents of brucellosis in small domestic ruminants. B. melitensis was first isolated in 1887 by David Bruce in Malta Island from spleens of four soldiers, while B. ovis was originally isolated in Australia and New Zealand in early 1950's from ovine abortion and rams epididymitis. Today, both agents are distributed worldwide: B. melitensis remains endemic and associated with an extensive negative impact on the productivity of flocks in -some regions, and B. ovis is still present in most sheep-raising regions in the world. Despite being species of the same bacterial genus, B. melitensis and B. ovis have extensive differences in their cultural and biochemical characteristics (smooth vs. rough colonial phases, serum and CO2 dependence for in vitro growth, carbohydrate metabolism), host preference (female goat and sheep vs. rams), the outcome of infection (abortion vs. epididymitis), and their zoonotic potential. Some of these differences can be explained at the bacterial genomic level, but the role of the host genome in promoting or preventing interaction with pathogens is largely unknown. Diagnostic techniques and measures to prevent and control brucellosis in small ruminants vary, with B. melitensis having more available tools for detection and prevention than B. ovis. This review summarizes and analyzes current available information on: (1) the similarities and differences between these two etiological agents of brucellosis in small ruminants, (2) the outcomes after their interaction with different preferred hosts and current diagnostic methodologies, (3) the prevention and control measures, and (4) alerting animal producers about the disease and raise awareness in the research community for future innovative activities.
      PubDate: 2022-05-12T00:00:00Z
       
  • Seroprevalence of Feline Heartworm in Spain: Completing the
           Epidemiological Puzzle of a Neglected Disease in the Cat

    • Authors: José Alberto Montoya-Alonso, Sara Nieves García Rodríguez, Elena Carretón, Iván Rodríguez Escolar, Noelia Costa-Rodríguez, Jorge Isidoro Matos, Rodrigo Morchón
      Abstract: Feline heartworm is a vector-borne zoonotic disease caused by Dirofilaria immitis. It is a cosmopolitan disease that is continuously expanding. Spain is considered an endemic country; however, although there are many published studies in dogs, feline heartworm has been poorly studied in this country. Thus, the objective was to analyze the exposure to D. immitis throughout Spain to complete the epidemiological map in the feline species. For this, 6,588 feline serum samples were analyzed for the presence of D. immitis antigens and antibodies against D. immitis and Wolbachia. The results were analyzed according to sex, age, breed, habitat, origin (owned or shelter cats), presence of clinical signs, use of preventive, location and climatology. The results showed a prevalence of 0.5% and a seroprevalence of 9.4%. The highest antibody seroprevalences were reported in the Canary Islands and the Balearic Islands (19.2 and 16%, respectively), as well as in the autonomous communities located on the Mediterranean coast (9.2–11.2%). Seropositive cats were found in both indoor and outdoor cats, and from 6 months of age. Furthermore, only 5.8% of cats received regular prophylactic treatment. The results show that feline dirofilariasis is widely distributed throughout the national territory and corroborate that, where infected dogs are present, there are cats exposed to the parasite. It is necessary to implement efficient awareness and prophylaxis measures to control the incidence and expansion of feline heartworm in Spain.
      PubDate: 2022-05-12T00:00:00Z
       
  • Post-mortem Computed Tomographic Angiography in Equine Distal Forelimbs: A
           Feasibility Study

    • Authors: Chantal Blaettler, Sabine Kaessmeyer, Silke Grabherr, Christoph Koch, Daniela Schweizer, Elke Van der Vekens
      Abstract: In-depth understanding of pathophysiological processes occurring in the vasculature of the equine distal limb is of great importance to improve both diagnostic and therapeutic approaches to diseases. To gain further insights, a model allowing high-resolution 3D-visualization of the vasculature is necessary. This pilot study evaluated the feasibility of restoring vascular perfusion in frozen-thawed distal equine cadaver limbs without prior preparation using computer tomographic imaging (CT). Five frozen-thawed, radiographically normal forelimbs were perfused with a lipophilic contrast agent through the median artery and radial vein in three phases (arterial, venous, and arterial-venous combined (AVC) dynamic). For comparison, one additional limb was perfused with a hydrosoluble contrast agent. The CT-studies (16-slice MDCT, 140 kV, 200 mA, 2 mm slice thickness, 1 mm increment, pitch 0.688) were evaluated at 11 specified regions for visualization of the vasculature and presence of artifacts or anatomic variations. The protocol used in this study proved to be feasible and provided good visualization (93.1%) of vasculature with low rates of artifacts. During the different phases, vascular visualization was similar, but while filling defects decreased in the later phases, extravasation worsened in the 2 limbs where it was observed. Subjectively, the best quality of angiographic images was achieved during the AVC dynamic phase. Perfusion with hydrosoluble contrast resulted in significantly lower vascular visualization (74.0%) and higher artifact rates. This study shows that reperfusion of frozen-thawed equine distal limbs with a lipophilic contrast agent allows for high-quality 3D-visualization of the vasculature and may serve as a model for in situ vascular evaluation in the future.
      PubDate: 2022-05-11T00:00:00Z
       
  • Production Performance of Four Pig Herds Infected With Porcine
           Reproductive and Respiratory Syndrome Using the “Load-Close-Exposure”
           Approach in China

    • Authors: Zhendong Zhang, Xiangyang Qu, Xiaoquan Wang, Zhi Li, Shuqing Yang, Liumei Sun, Bin Zhou
      Abstract: Porcine reproductive and respiratory syndrome (PRRS) is one of the most important swine diseases causing enormous losses to pig producers all over the world. The intervention measure of “load-close-exposure” [interrupting the introduction of replacement pigs combined with whole-herd exposure to live PRRS virus (PRRSV)] has been widely used in North America and has shown wonderful outcomes in controlling PRRS in the field. In the present study, we performed analyses of the production performance of four herds acutely infected with PRRSV by adopting this measure for the first time in China. Our results showed that the development rate of gilts decreased by a mean of 8.56%, the farrowing rate of breeding sows decreased from 86.18 to 77.61%, the number of piglets born alive per sow decreased by a mean of 0.73 pigs, and the pre-weaning and post-weaning mortality of piglets increased by a mean of 2.74–4.97% compared to the parameters of 6 months before an outbreak. The time to PRRSV stability (TTS), defined as the time in weeks it took to produce PRRSV-negative pigs at weaning, is an important indicator of successful control of PRRSV. The median TTS among herds A, C, and D was 21.8 weeks (21.6 22.1 weeks). In herd B, TTS was 42.3 weeks, which could be explained by the double introduction of gilts. Our study suggests that the “load-close-exposure” strategy may be a good alternative for Chinese producers and veterinaries to control PRRS in the field.
      PubDate: 2022-05-11T00:00:00Z
       
  • A Retrospective Study on Mandibular Reconstruction Following Excision of
           Canine Acanthomatous Ameloblastoma

    • Authors: Anson J. Tsugawa, Boaz Arzi, Natalia Vapniarsky, Frank J. M. Verstraete
      Abstract: The successful excision of a locally invasive tumor such as canine acanthomatous ameloblastoma (CAA) typically results in a mandibular contour-derforming, critical-size defect that alters the jaw kinematics, and may affect the patient's quality of life. In this case series, we describe our experience using the regenerative approach of a titanium locking plate and compression resistant matrix infused with rhBMP-2 for the immediate or delayed reconstruction following mandibulectomy for the excision of mandibular CAA in 11 dogs. Surgical planning included computed tomography (CT), with and without contrast, in all cases, and 3D-printed models in four cases. Tumor-free surgical margins were achieved in all dogs. Clinical and diagnostic imaging follow-up (mean, 23.1 months) were performed in-person (11 cases) and with CT/cone-beam computed tomography in most cases, with standard radiography (3 cases) and telemedicine being utilized in 5 cases. At 2 weeks postoperatively, hard tissue was palpable at the defect. Follow-up imaging at 1 month postoperatively revealed evidence of bridging new bone with a heterogeneous appearance, that remodeled over 3–6 months to bone of a similar size, shape and trabecular pattern as native bone. Histological evaluation of regenerated bone was available in two cases, and was supportive of our clinical and imaging findings of normal remodeled bone. Clinically, all dogs returned to a normal lifestyle, rapidly resumed eating and drinking, and exhibited normal occlusion. Complications included wound dehiscence in one dog and self-limiting exuberant bone formation in two dogs. Tumor regrowth, failure of the implant or fracture of the regenerated bone were not observed. We conclude that the mandibular reconstruction using a regenerative approach is safe, feasible, and results in restoration of mandibular contour in dogs following segmental and bilateral rostral mandibulectomy for benign but invasive oral tumors such as CAA.
      PubDate: 2022-05-11T00:00:00Z
       
  • Effect of a Phytogenic Feed Additive in Preventing Calves' Diarrhea

    • Authors: Luca Turini, Alberto Mantino, Beatrice Tozzi, Francesca Bonelli, Alina Silvi, Marcello Mele, Micaela Sgorbini, Valentina Meucci, Sara Minieri
      Abstract: The aims of the present study were to evaluate the preventive and the therapeutic effect of Stodi® as phytogenic feed additive rich in phenolic substances on the calf diarrhea, during the first 24 days of life. A total of 40 calves were included and randomly divided into Group C (control group) and Group T (treated group) with placebo or treatment administration started from the third day of life (T0). Calves belonged to group C received 2 L of warm water, while the calves assigned to group T received 2L of warm water plus 30 g of Stodi®. Solutions administration was maintained until day 21 (T21) that was the end of the experimental period. Calves were weighed at T0 and T21 to assess the average daily gain (ADG). Physical examination and fecal score evaluation were performed daily. The duration of a diarrheic episode, the age of the first diarrhea outbreak (TDE) and the frequency of diarrheic episodes were recorded. Complete blood count, methemoglobin and liver enzymes were evaluated at T0 and at T21 in all the calves by spectrophotometer and clinical chemistry analysis, respectively. Data were analyzed using a mixed model. A Chi-square and a Mann-Whitney test were also performed. No difference was found for ADG between the groups. The difference of mean age at TDE was not statistically significant between C and T group. The number of calves with diarrhea in the C group tended to be higher than that of T group (p = 0.13). Calves in group C spent more days with clinical sign of diarrhea compared to group T (p = 0.016). Complete blood count, methemoglobin and liver enzymes were within the reference ranges. The feed additive Stodi® seemed to be effective in shortening neonatal diarrhea episodes in calves thanks to the administration of 30 g per day of product. The fixed dosage of Stodi® used in our study did not show a preventive effect to reduce the incidence of calf diarrhea.
      PubDate: 2022-05-11T00:00:00Z
       
  • The Use of MALDI-TOF MS as a Diagnostic Tool for Adult Trichuris Species

    • Authors: Julia Rivero, Antonio Zurita, Cristina Cutillas, Rocío Callejón
      Abstract: Trichuriasis is considered a neglected tropical disease, being the second most common helminthiasis in humans. Detection of Trichuris in routine diagnosis is usually done by microscopic detection of eggs in fecal samples. Other molecular analyses are more reliable and could be used, but these analyses are not routinely available in clinical microbiology laboratories. The use of matrix-assisted laser desorption/ionization-time of flight (MALDI-TOF) mass spectrometry (MS) is increasing since the last decades due to its recent evidence as a potential role for reliable identification of microorganisms and a few nematodes. But, for parasites detection, normalized protocols and the acquisition and introduction of new species to the database are required. We carried out a preliminary study confirming the usefulness of MALDI-TOF MS for the rapid and reliable identification of Trichuris suis used as control and the creation of an internal database. To create main spectra profiles (MSPs), the different parts of five whipworms (esophagus and intestine) were used, developing different tests to verify the repeatability and reproducibility of the spectra. Thus, to validate the new internal database, 20 whipworms, separating the esophagus and intestine, were used, of which 100% were accurately identified as T. suis, but could not distinguish between both parts of the worm. Log score values ranged between 1.84 and 2.36, meaning a high-quality identification. The results confirmed that MALDI-TOF MS was able to identify Trichuris species. Additionally, a MALDI-TOF MS profile of T. suis proteome was carried out to develop the first internal database of spectra for the diagnosis of trichuriasis and other Trichuris spp.
      PubDate: 2022-05-11T00:00:00Z
       
  • Assessment of Diversity of Antimicrobial Resistance Phenotypes and
           Genotypes of Mannheimia haemolytica Isolates From Bovine Nasopharyngeal
           Swabs

    • Authors: Hannah F. Carter, Robert W. Wills, Matthew A. Scott, Alexis C. Thompson, Randall S. Singer, John Dustin Loy, Brandi B. Karisch, William B. Epperson, Amelia R. Woolums
      Abstract: The threat of bovine respiratory disease (BRD) for cattle operations is exacerbated by increasing prevalence of antimicrobial resistance (AMR) in Mannheimia haemolytica, a leading cause of BRD. Characterization of AMR in M. haemolytica by culture and susceptibility testing is complicated by uncertainty regarding the number of colonies that must be selected to accurately characterize AMR phenotypes (antibiograms) and genotypes in a culture. The study objective was to assess phenotypic and genotypic diversity of M. haemolytica isolates on nasopharyngeal swabs (NPS) from 28 cattle at risk for BRD or with BRD. NPS were swabbed onto five consecutive blood agar plates; after incubation up to 20 M. haemolytica colonies were selected per plate (up to 100 colonies per NPS). Phenotype was determined by measuring minimum inhibitory concentrations (MIC) for 11 antimicrobials and classifying isolates as resistant or not. Genotype was indirectly determined by matrix-assisted laser desorption/ionization time of flight mass spectroscopy (MALDI-TOF MS). NPS from 11 of 28 cattle yielded at least one M. haemolytica isolate; median (range) of isolates per NPS was 48 (1–94). NPS from seven cattle yielded one phenotype, 3 NPS yielded two, and 1 NPS yielded three; however, within a sample all phenotypic differences were due to only one MIC dilution. On each NPS all M. haemolytica isolated were the same genotype; genotype 1 was isolated from three NPS and genotype two was isolated from eight. Diversity of M. haemolytica on bovine NPS was limited, suggesting that selection of few colonies might adequately identify relevant phenotypes and genotypes.
      PubDate: 2022-05-11T00:00:00Z
       
  • Screening of Bovine Tissue-Specific Expressed Genes and Identification of
           Genetic Variation Within an Adipose Tissue-Specific lncRNA Gene

    • Authors: Sihuan Zhang, Han Xu, Enhui Jiang, Zhanerke Akhatayeva, Fugui Jiang, Enliang Song, Chuanying Pan, Hong Chen, Xianyong Lan
      Abstract: Global classification of bovine genes is important for studies of biology and tissue-specific gene editing. Herein, we classified the tissue-specific expressed genes and uncovered an important variation in the promoter region of an adipose tissue-specific lncRNA gene. Statistical analysis demonstrated that the number of genes specifically expressed in the brain was the highest, while it was lowest in the adipose tissues. A total of 1,575 genes were found to be significantly higher expressed in adipose tissues. Bioinformatic analysis and qRT-PCR were used to uncover the expression profiles of the 23 adipose tissue-specific and highly expressed genes in 8 tissues. The results showed that most of the 23 genes have higher expression level in adipose tissue. Besides, we detected a 12 bp insertion/deletion (indel) variation (rs720343880) in the promoter region of an adipose tissue-specific lncRNA gene (LOC100847835). The different genotypes of this variation were associated with carcass traits of cattle. Therefore, the outcomes of the present study can be used as a starting point to explore the development of cattle organs and tissues, as well as to improve the quality of cattle products.
      PubDate: 2022-05-11T00:00:00Z
       
  • Corrigendum: A Novel Intranasal Vaccine With PmpGs + MOMP Induces Robust
           Protections Both in Respiratory Tract and Genital System Post Chlamydia
           psittaci Infection

    • Authors: Qiang Li, Siyu Chen, Zhuanqiang Yan, Huanxin Fang, Zhanxin Wang, Cheng He
      PubDate: 2022-05-11T00:00:00Z
       
 
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