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  Subjects -> ANIMAL WELFARE (Total: 107 journals)
Showing 1 - 22 of 22 Journals sorted alphabetically
Acrocephalus     Open Access   (Followers: 8)
Advances in Botanical Research     Full-text available via subscription   (Followers: 1)
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)
Alternatives to Laboratory Animals     Full-text available via subscription   (Followers: 9)
Animal - Science Proceedings     Full-text available via subscription   (Followers: 2)
Animal Cognition     Hybrid Journal   (Followers: 20)
Animal Diseases     Open Access  
Animal Frontiers     Hybrid Journal   (Followers: 3)
Animal Nutrition     Open Access   (Followers: 18)
Animal Research International     Full-text available via subscription   (Followers: 3)
Animal Sentience : An Interdisciplinary Journal on Animal Feeling     Open Access   (Followers: 1)
Animal Studies Journal     Open Access   (Followers: 7)
Animal Welfare     Full-text available via subscription   (Followers: 27)
Animals     Open Access   (Followers: 11)
Annual Review of Animal Biosciences     Full-text available via subscription  
Applied Animal Science     Hybrid Journal   (Followers: 1)
Archiva Zootehnica     Open Access  
Archivos de Medicina Veterinaria     Open Access   (Followers: 1)
Asian Journal of Animal and Veterinary Advances     Open Access   (Followers: 8)
Asian Journal of Animal Sciences     Open Access   (Followers: 3)
Asian Journal of Cell Biology     Open Access   (Followers: 4)
Australian Holstein Journal     Full-text available via subscription   (Followers: 1)
Australian Mammalogy     Hybrid Journal   (Followers: 8)
Bangladesh Journal of Animal Science     Open Access   (Followers: 4)
Between the Species     Open Access   (Followers: 2)
Botanical Review     Hybrid Journal   (Followers: 2)
British Poultry Abstracts     Hybrid Journal   (Followers: 3)
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)
Canadian Journal of Animal Science     Hybrid Journal   (Followers: 6)
Companion Animal     Full-text available via subscription   (Followers: 8)
Corpoica Ciencia y Tecnología Agropecuaria     Open Access  
Derecho Animal. Forum of Animal Law Studies     Open Access   (Followers: 1)
Equine Health     Full-text available via subscription   (Followers: 4)
Ethics and Social Welfare     Hybrid Journal   (Followers: 21)
European Journal of Wildlife Research     Hybrid Journal   (Followers: 13)
Global Journal of Animal Scientific Research     Open Access   (Followers: 1)
Hayvansal Üretim     Open Access  
Human-Wildlife Interactions     Open Access  
Indonesian Journal of Animal and Veterinary Sciences     Open Access   (Followers: 1)
International Journal for Parasitology : Parasites and Wildlife     Open Access   (Followers: 2)
International Journal of Health, Animal Science and Food Safety     Open Access   (Followers: 2)
Iranian Journal of Applied Animal Science     Open Access   (Followers: 1)
Italian Journal of Animal Science     Open Access   (Followers: 1)
Journal of Anatolian Environmental and Animal Sciences     Open Access  
Journal of Animal Science and Biotechnology     Open Access   (Followers: 2)
Journal of Animal Science and Products     Open Access  
Journal of Applied Animal Ethics Research     Full-text available via subscription   (Followers: 1)
Journal of Applied Animal Research     Open Access   (Followers: 5)
Journal of Applied Animal Welfare Science     Hybrid Journal   (Followers: 19)
Journal of Botany     Open Access   (Followers: 4)
Journal of Comparative Social Welfare     Hybrid Journal   (Followers: 16)
Journal of Experimental Psychology : Animal Learning and Cognition     Full-text available via subscription   (Followers: 11)
Journal of Pest Science     Hybrid Journal   (Followers: 1)
Journal of Research in Forestry, Wildlife and Environment     Open Access   (Followers: 5)
Journal of Threatened Taxa     Open Access   (Followers: 1)
Journal of Veterinary and Animal Sciences     Open Access  
Journal of Veterinary Internal Medicine     Open Access   (Followers: 29)
Journal of Veterinary Science & Medicine     Open Access  
Journal of Wildlife and Biodiversity     Open Access   (Followers: 4)
Journal of Zoological and Botanical Gardens     Open Access  
Jurnal Agripet     Open Access   (Followers: 1)
Jurnal Ilmu dan Kesehatan Hewan (Veterinary Science and Medicine Journal)     Open Access   (Followers: 1)
Jurnal Ilmu-Ilmu Peternakan     Open Access  
Jurnal Sain Peternakan Indonesia     Open Access  
Jurnal Veteriner     Open Access   (Followers: 1)
Majalah Ilmiah Peternakan     Open Access   (Followers: 1)
Natural History Sciences     Open Access   (Followers: 4)
Nigerian Journal of Animal Science     Full-text available via subscription   (Followers: 1)
Nutrición Animal Tropical     Open Access   (Followers: 3)
Online Journal of Animal and Feed Research     Open Access   (Followers: 1)
Pastoralism : Research, Policy and Practice     Open Access   (Followers: 2)
People and Animals : The International Journal of Research and Practice     Open Access  
Pet Behaviour Science     Open Access   (Followers: 1)
Proceedings of the Vertebrate Pest Conference     Open Access  
Rangifer     Open Access  
Research Journal of Parasitology     Open Access   (Followers: 2)
Revista Brasileira de Higiene e Sanidade Animal     Open Access   (Followers: 1)
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 de Producción Animal     Open Access  
Revista de Salud Animal     Open Access  
Revista Mexicana de Ciencias Pecuarias     Open Access   (Followers: 1)
Revue de primatologie     Open Access   (Followers: 1)
RUDN Journal of Agronomy and Animal Industries     Open Access  
Science and Animal Health     Open Access  
Scientific Papers Animal Science and Biotechnologies     Open Access  
Social Choice and Welfare     Hybrid Journal   (Followers: 11)
Society and Animals     Hybrid Journal   (Followers: 14)
South African Journal of Animal Science     Open Access   (Followers: 2)
Spei Domus     Open Access  
TRACE ∴ Finnish Journal for Human-Animal Studies     Open Access   (Followers: 1)
Translational Animal Science     Open Access  
Turkish Journal of Veterinary Research     Open Access  
Uluslararası Tarım ve Yaban Hayatı Bilimleri Dergisi / International Journal of Agricultural and Wildlife Sciences     Open Access  
veterinär spiegel     Hybrid Journal   (Followers: 1)
Veterinary and Animal Science     Open Access  
Veterinary Clinical Pathology     Hybrid Journal   (Followers: 9)
Wartazoa. Indonesian Bulletin of Animal and Veterinary Sciences     Open Access  
Wildfowl     Open Access   (Followers: 11)

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Archiva Zootehnica
Number of Followers: 0  

  This is an Open Access Journal Open Access journal
ISSN (Print) 1016-4855 - ISSN (Online) 2344-4592
Published by Sciendo Homepage  [370 journals]
  • Herbal Plants as Feed Additives in Broiler Chicken Diets

    • Abstract: This study evaluated the effect of some herbal plants as natural feed additives on broiler production parameters, carcass parts, and breast meat quality. A total of 150 broiler chicks, Cobb 500 hybrid, were allocated to five treatments with 30 broilers /group, for 42 days. The experimental treatments were: Control (C); a diet containing 5% alfalfa meal (A); a diet containing 5% alfalfa meal and 1% basil (AB); a diet containing 5% alfalfa and 1% thyme (AT) and a diet containing 5% alfalfa and 1% sage (AS). Bodyweight was significantly (P<0.05) affected in AS group compared with C and A groups. Feed conversion ratio was significantly higher only in A and AB groups. Experimental groups had significantly greater (P<0.05) gizzard weight. The total polyphenols content and the antioxidant capacity were significantly (P<0.05) higher in AB, AT, and AS groups versus the C group. The cholesterol concentration was significantly (P<0.05) decreased in AB, AT, and AS meat samples compared with C and A samples. Instrumental colour measurements indicated significant alterations (P<0.05) among the groups regarding the values of L*, a*, b*, H°, C*, and ΔE*. The texture analysis showed that hardness, gumminess, and chewiness were significantly (P<0.05) higher in AB, AT, and AS groups than in C and A groups.
      PubDate: Thu, 30 Dec 2021 00:00:00 GMT
       
  • Evaluation of the Effect of Synbiotic in Piglets’ Diet on the
           Nutritional Quality of Pork

    • Abstract: The purpose of the study was to increase the nutritional quality of pork, and to investigate the effect of the synbiotic on the oxidative stability of lipid. A 4 weeks experiment was performed on 8 weaned piglets (age 47 days, TOPIGS), divided into 2 groups (C, E). The control group (C) received a conventional diet, while the experimental group (E) included a diet supplemented with organic Zn and 10 g/kg synbiotic mixture. The productive parameters were evaluated. After slaughtered, muscle (tenderloin, shoulder, loin, ham and belly) and organs samples (liver, spleen and kidney) were collected. The muscle and organs samples were analysed regarding the proximate chemical analysis (dry matter, crude protein, crude fat, and ash). The antioxidant capacity and thiobarbituric acid reactive substances (TBARS) were performed on shoulder and ham samples at first day of the trial, 4 and 7 days after refrigeration. The crude fat determined in the loin samples, recorded a significant increase in the E group compared to the C group. The ash was higher in the shoulder samples from C group than in E group. At 7 days of refrigeration, the MDA concentration was significantly lower in the shoulder and ham samples from E group than those from C group. The conclusion was that the diet supplemented with organic Zn and 10 g/kg synbiotic mixture contributed to the delay of the lipid oxidation process of the shoulder and ham samples during the refrigeration period.
      PubDate: Thu, 30 Dec 2021 00:00:00 GMT
       
  • Nitrous Oxide Prediction in Manure from Pigs Given Mustard x Grapeseed Oil
           Cakes as a Replacement for Sunflower Meal

    • Abstract: During the last century, the emission of nitrous oxide (N2O) from the livestock sector increased significantly. N2O is a greenhouse gas with 298-fold higher global warming potential (GWP) than CO2. Pigs accounted for about 26% of N2O emissions. The formation of N2O occurs through nitrification and denitrification processes in manure. This study aimed to estimate N2O production in the manure of growing-finishing pigs by using our experimental data in the model. The associative effects of dietary mustard and grapeseed oil cakes (MxG), as an alternative for sunflower meal (SFM), on performance and efficiency traits were also determined. Forty growing-finishing pigs were randomly allocated in two groups (2 replicates per group) fed two diets: C diet (based on SFM, 15 wt) and E diet (based on M and G mixture, 7:8 wt:wt). Our model includes as initial input data: body weight (BW), feed intake, nitrogen intake, dietary dry matter, and fibre intake. Using literature prediction equations, including total nitrogen output (TNO) as the main parameter, we established N2O production expressed as equivalent CO2 (E-CO2). A decline with 3% for BW (P=0.44), respectively 9.0% for average daily gain (ADG, P=0.21) in pigs given MxG was recorded. Correlated with growth parameters, efficiency traits (feed intake, feed: gain ratio, N and fibre intake) were decreased as well (P>0.05). Dietary addition of MxG led to a 5% lower level of N2O production in manure. The reduction of TNO was not significant (<7.14% in the E diet compared to the C diet). In our trial, a relatively low N intake percentage is retained in the pigs body (35.56% in the C group and 35.98% in the E group, P>0.05). Based on these results, we conclude that the inclusion of 15% MxG mixture in pigs diets, although slightly declining growth parameters, is a valuable nutritional solution by their contribution to lowering N2O and N output in the manure.
      PubDate: Thu, 30 Dec 2021 00:00:00 GMT
       
  • Estimation the Genetic Parameters for Milk Yield in Romanian Spotted,
           Simmental Type Cattle Breed

    • Abstract: The aim of this study was to estimate the genetic parameters for test-day traits milk yield and the breeding value in Romanian Spotted, Simmental type cattle. Random regression test-day animal model was used to estimate the genetic parameters. The number of records were 2062 test-day from 302 cows. The data were obtained from Romanian Breeding Association Romanian Spotted, Simmental type. The heritability estimates values for milk yield ranged between 0.377 and 0.417. The heritability for fat test-day yield in our study was low the values ranged between 0.117 and 0.236 and for protein test-day yield was medium, the values ranged between 0.308 and 0.372.The breeding value for the best ten cows for milk yield ranged from 1946.57 to 3250.38 kg, for fat yield were between 64.92 and 98.86 kg and for protein ranged from 67.26 to 102.21 kg. The correlations between test-day milk yields ranging from 0.28 to 1. Genetic correlations between test day fat and protein yields were high.
      PubDate: Thu, 30 Dec 2021 00:00:00 GMT
       
  • Effects of High Fiber Ingredients with Enzyme/Phytoadditive Addition on
           Laying Hens Productive Performances, Egg Nutritional Quality and
           Intestinal Morphology

    • Abstract: Fibre inclusion in laying hen diets it is considered a solution to reduce feed formulation costs by improving nutrients absorption and metabolization within the gastrointestinal tract. A 5-wk study was conducted on 200, Tetra SL layers (28 weeks) randomly allocated in 5 groups (C, E1, E2, E3, E4, respectively), with initial average weights of 1732.26±109.35 g/hen, housed (4 hens/cage; 10 cages/group; 40 hens/group). All groups had the same basic feed compound structure (corn, oil, soybean meal and sunflower meal). The conventional diet (C group) contained 2780 kcal/kg Metabolizable energy (ME); 17.5% Crude protein (CP); 4.39% Crude fibre (CF). The experimental diets added 16.56% sunflower meal and 20% rice bran, increasing the dietary cellulose up to 7%. The fibre digestibility was improved using on E2 (0.015% enzyme); E3 (0.015% phytoadditive) and E4 (0.015% enzyme + 0.015% phytoadditive). The high fibre diets had no negative impact on productive performances and egg quality parameters. Yolk cholesterol significantly decreased (P<0.05) on E1, E3 and E4 groups compared to C, E2 groups. Villi height increased significantly (P<0.05) on E2 group compared to all other groups. In conclusion, the high dietary crude fibre (7%), additional enzymes/phyto additives, can improve the nutrient digestibility and intestinal morphology with beneficial effects on health and egg quality.
      PubDate: Thu, 30 Dec 2021 00:00:00 GMT
       
  • Camelina Meal and Chromium Picolinate Effects on Broiler Thigh Meat
           Nutritional Properties

    • Abstract: The aim of this study was to evaluate the combined effects of trivalent chromium and camelina meal on proximate composition, mineral content and fatty acids profile of broiler chicken thigh meat. An experiment with 2 x 3 factorial arrangement was performed on 240 Ross 308 broiler chicken aged 14 days. Six dietary treatments were elaborated as follows: 0 and 3% inclusion rate of Camelina meal and 0, 200 and 400 μg/kg chromium picolinate (CrPic).Supplementation of broiler diets with 3% Camelina meal led to significantly (P<0.05) increased crude fat concentrations in thigh samples compared to control group or with single chromium supplemented groups. In thigh samples, Zn and Fe concentrations increased under CrPic influence and fatty acids profile was influenced by Camelina meal presence in the diets. In Camelina meal supplemented groups, were registered significantly increased omega 3 fatty acids concentrations compared to control group or single chromium supplemented groups.The results of the present study found that Camelina meal and chromium picolinate supplements in broilers diets improved the nutritional properties of thigh meat, especially essential minerals content and fatty acids profile.
      PubDate: Thu, 30 Dec 2021 00:00:00 GMT
       
  • Performance and Blood Metabolites of Growing Pigs Fed Diet

    • Abstract: During 30 days, the effects of millet grain regimen on performance indicators and blood metabolites in growing pigs were studied. A total of 40 Topigs pigs with similar age (81±3d) and weight (13.58±0.36 kg) were divided into two groups: control (C), based on the corn-triticale (25%)-soybean meal and experimental (M, where the millet replaces triticale). The production parameters and plasma samples were evaluated at the end of the experiment. Spotchem EZ SP-4430 analyzer from Arkray-Japan was used to assess the blood lipid, protein, enzyme, and mineral profiles. We noticed that the M diet maintains appropriate performance (33.22 vs. 31.30 final BW; 0.646 vs. 0.608 average daily gain; 1.39 vs. 1.29 average daily feed intake and, respectively 0.46 vs. 0.47 Gain: Feed ratio) and plasma metabolic profile with the C diet (P>0.05). In conclusion, the 25% millet added to the growing pigs' diet did not affect the performance indicators or body health.
      PubDate: Thu, 30 Dec 2021 00:00:00 GMT
       
  • The Effects and Mechanisms of Action of Zearalenone in Human Intestinal
           Epithelial Cells

    • Abstract: Fusariotoxins are fungal secondary metabolites produced mainly by Fusarium and Giberella species, zearalenone (ZEA) being one of the most widespread members of this class. Exposure to ZEA affects the health of animals and humans, predominantly by disrupting the activity of the reproductive system due to its structural resemblance to estrogen, but it also affects other systems such as the digestive, nervous and immune systems. The main route through which ZEA enters the body is by ingestion, the intestinal epithelium being the first tissue exposed to the toxin. The intestinal barrier not only has a mechanical role in defending the body, it is also able to secrete effector molecules involved in the immune and inflammatory response such as cytokines. In this in vitro study, performed on the line Caco-2, the effects of ZEA on inflammation of the intestinal epithelium were studied by quantifying gene expression and protein concentration of pro-inflammatory cytokines IL-1β, TNF-α, IL-6 and IL-8. Also, the mechanism of inflammation that ZEA can affect at intestinal level was investigated by monitoring the level of mRNA and the protein expression of the nuclear receptors NF-κB and Nrf-2. The results of this study demonstrate that ZEA has an anti-inflammatory character on human intestinal epithelial cells Caco-2, reducing the gene expression of the pro-inflammatory cytokines IL-1β, TNF-α, IL-6, IL-8. Also, ZEA led to a decrease in the protein concentration of IL-6 and IL-8. The anti-inflammatory response seems to be induced by modulation of gene and protein expresion of NF-κB and Nrf-2 nuclear receptors.
      PubDate: Thu, 30 Dec 2021 00:00:00 GMT
       
  • Evaluation of spp. Based on Phenotypical Profile as Direct-Fed Microbial
           Candidate for Poultry Nutrition

    • Abstract: The present study was conducted to isolate, identify and characterize a lactic acid bacteria strain from turkey ileum content (46-day-old). The new strain was phenotypical confirmed as Lactobacillus acidophilus (L. acidophilus) and conserved under the code IBNA 09. Bacterial profile of L. acidophilus was compared with other strains known as L. paracasei CCM 1837 and L. plantarum ATCC 8014, based on cultural, morphological, biochemical and enzymatic activity (amylase and cellulase). The strains appear as Gram positive bacilli, thin, non-spore-forming, isolated, diplo form, in short chains or in small irregular piles on Man Rogosa and Sharp (MRS) broth and agar medium. The identification and biochemical traits were performed by catalase assay, API 50 CHL V 5.1 soft (L. acidophilus biotype 2, 99.9% ID; good identification to the genus L. paracasei spp. paracasei 1 or 3, 48-51% ID; L. plantarum 1, 99.9% ID) and ABIS online (L. acidophilus ~ 88%; L. paracasei spp. paracasei, ~ 90%; L. plantarum, ~91%). The highest total score of extracellular amylase activity was recorded by L. acidophilus IBNA 09 at 24-48 h (5.10 ± 0.176 U/mL, 4.99 ± 0.409 U/mL), follow by L. paracasei CCM 1837(0.12 ± 0.002 U/mL, 0.15 ± 0.001 U/mL). During entire period, cellulase production was observed only for L. acidophilus (0.28 ± 0.019 U/mL), comparative with L. paracasei where the activity was observed in the first 24 h, respectively at 72 h for L. plantarum. These results suggest that L. acidophilus IBNA 09 possesses potential probiotic traits as a suitable candidate for amylase and cellulase production, and starter culture can improve cereal fermentation and the process of digestion in poultry nutrition.
      PubDate: Thu, 30 Dec 2021 00:00:00 GMT
       
  • Effect of Temperature-Humidity-Index on Milk Performances of Local Born
           Holstein Dairy Cows Under Saharan Climate

    • Abstract: The objective is to study the effect of heat stress on milk yield (MY) relative to milking records (n=18178) of native Holsteins (n=187), in the region of Ghardaia, according to periods of HS, using the temperature-humidity index (THI). With THI >72 during 07 months in the study area, which significantly (P<0.001) decrease the MY (-15.5% corresponding to 21.73 kg). Also, calving periods led to a significant drop (P < 0.001) in overall MY (7030.35 kg) of the order of (-14.6%), and over the lactation length (353.43 d), which explains 41% of the variations in MY. In addition, the non-significant effect (P=0.212) of the lactation range on the increase in MY, moreover, the lactation length shows a non-significant (P = 0.108) decrease (-4.68%) during heat stress (HS). Furthermore, the significant effect (P <0.001) of the interaction (Milking frequency × THI) on MY, when THI variates from < 74 to > 84, with regression of (-16.82% and -08.82%) of the MF (2X and 3X), respectively. Again, the NH cow is less sensitive to hyperthermia, so THI explains only 2% of the variation in MY levels. Thus, NH in arid regions have the ability to acclimatize to Saharan environmental conditions.
      PubDate: Thu, 30 Dec 2021 00:00:00 GMT
       
  • The Effect of Dietary Addition of a Synbiotic After Long-Term Starvation
           on Certain Biochemical Parameters and Liver Structure in Common Carp ( L.)
           

    • Abstract: The prolonged starvation has many effects on the physiological and morphological processes in fish and interferes them with the ability to absorb nutrients and caloric intake. The aim of present study was to investigate the effect of long-term starvation and posterior dietary administration of commercial synbiotic consisting fructoligosaccharide (FOS) which used in combination with Enterococcus, Lactobacillus, Bifidobacterium and Lactococcus spp. for evaluation on some blood biochemical parameters and histological characteristics of common carp liver. Experimental fish after 5 months starvation period were subjected to the following feeding protocols: continuous starvation until 60 day (ST), re-feeding (FS) with dry composed diet (Aqua 1032 Swim) and refeeding with composed diet and synbiotic (FSS) for the following 60 days. Blood samples were used for analysis of the following plasma parameters: total protein, albumin, globulin, urea, creatinine, cholesterol, AST, ALT, glucose and serum for thyroid hormones. Histology analyses were performed on the carp liver samples. During the experimental period, fasting and refeeding were influenced significant on studied biochemical parameters, except glucose and urea. Also, the statistically largest (P <0.001) difference was observed in albumin and cholesterol values after refeeding. Our results reveal the changes in values of biochemical parameters during long-term starvation and refeeding with synbiotic and indicate signs of structural alterations of the liver in common carp.
      PubDate: Thu, 30 Dec 2021 00:00:00 GMT
       
  • Effect of Storage Time On the Hatchability of Eggs of Two-Line
           Dual-Purpose Combination for Production of Male Chickens for Meat

    • Abstract: The aim of the study was to assess the effect of the storage time on the hatching traits of eggs obtained from a two-line dual-purpose combination for production of male chickens that will be utilized for meat. The trial was carried out in the experimental poultry farm of the Institute of Animal Science-Kostinbrod, with a total of 150 Lohmann Brown Classic layers, at the age of 54 weeks. Hatching eggs were gathered for three weeks and were stored for 5, 10 and 15 days at 15-18°C ambient temperature prior incubation. The storage time had no effect on the fertility of the set eggs, however, it adversely affected the hatchability. Prolonged storage led to significant decline in the total hatchability (P=0.0027) and the hatchability of the fertile eggs (P<0.0001) which was lowest after 15 days of storage prior incubation. The viability of the chickens was influenced by the storage of the eggs prior incubation (P<0.0001), and decreased considerably when the chicks were hatched from eggs stored for 15 days.
      PubDate: Thu, 30 Dec 2021 00:00:00 GMT
       
  • Use of brewer’s yeast () in broiler feeds to replace corn gluten meal
           with or without probiotic additives

    • Abstract: This study was intended to assess the effect of graded replacements of corn gluten meal with Brewer’s yeast (Saccharomyces cerevisiae), with and without Bacillus megaterium supplementation, on performance, carcass characteristics, and the gut broilers microflora composition. A total of 720 mixed sex one-day-old broiler chicks (Ross 308) were randomly assigned to six dietary treatment groups (6 replicates each) in a 3 × 2 factorial arrangement, including 3 levels of Brewer’s yeast (BY; 0, 25, and 50%, to replace corn gluten meal; CGM) in the presence (+) or absence (−) of B. megaterium used as probiotic (Pro). The results showed that broilers fed diets containing BY up to 25% had comparable body weight (BWG), feed intake (FI), and feed conversion ratio (FCR) to the birds fed only CGM, over the entire feeding period (days 1–35). Conversely, higher levels of BY (50% replacing CGM) registered the lowest BWG values (P < 0.001) and impaired FCR (P < 0.010), but without effects on FI. The BY diets did not significantly affect the main broiler’s carcass traits. The diets with Pro did not involve modifications on carcass and organs size, but a tendency to increase the gizzard weight (P = 0.094) and to decrease SIL (P = 0.076) was observed. Pro addition also, reduced the cecal pH (P = 0.040) and diminish the total coliforms (P < 0.010), Clostridium spp. (P < 0.0001), and E. coli (P < 0.0001) count, whereas LAB, Bacillus spp., and Enterococcus spp. bacteria were increased (P = 0.022; P < 0.0001, and P < 0.0001, respectively).
      PubDate: Sat, 17 Jul 2021 00:00:00 GMT
       
  • Performance and intestinal microflora response of broilers to a probiotic
           mixture supplementation

    • Abstract: The study evaluated the effects of a Lactobacillus strains probiotic mix on performance, carcass traits, organs size, and intestinal microflora in broilers. A total of 200 one-day-old unsexed broilers were allotted into 2 groups with 5 replicates (20 broilers/replicate). During the feeding trial (35 d) the broilers were fed with a control (basal diet) or probiotic (basal diet plus 3% probiotic mix L. acidophilus and L. plantarum, 1:1 ratio). The probiotic supplementation did not significantly influence the performance, carcass traits and organs size of broilers at slaughter age. No effect of probiotic supplementation on visceral weight or length was observed, except a higher of jejunum (P=0.007) and ileum (P=0.013) weights, and a tendency to higher the caecum length (P=0.070). The probiotic mix had no significant effect on the intestinal pH, but it improved the microflora by decreasing the Enterobacteria and E. coli counts and increasing the Lactobacilli counts and Lactobacilli: E. coli ratio in the ileum and caecum (P<0.05). In conclusion, the probiotic mix (L. acidophilus and L. plantarum mix, 1:1 ratio) did not significantly affect the productive performance but had a positive effect on broilers’ gut microflora.
      PubDate: Sat, 17 Jul 2021 00:00:00 GMT
       
  • Milk yield genetic parameters estimated using random regression model in
           Teleorman Black Head Sheep

    • Abstract: Genetic parameters are important in breeding program of sheep. For the genetic evaluation of sheep was used the random regression test-day animal model. This model was better economic that another models because reduces generation interval and reduces the costs with test-days records. Data consisted of 1050 test-day of 403 ewes in first year (2017), 752 test-day of 374 ewes in second year (2018) and 1164 test-day of 319 ewes in third year (2019). The main goal to achieve the objectives of this research were the estimation of the genetic parameters important in obtaining the breeding value by calculation heritability for test-day milk yields and the correlations between test-days milk yields, for Teleorman Black Head Sheep population from Teleorman county in three different years. The heritability for test-day milk yield ranged from 0.150 to 0.237 in 2017, from 0.212 to 0.600 in 2018 and in 2019 from 0.186 to 0.403. Genetic correlations between sheep test-days milk yield in 2017 were positive and high.
      PubDate: Sat, 17 Jul 2021 00:00:00 GMT
       
  • Influences of different sources and levels of crude fiber on performances,
           fatty acids profile and carcass traits in growing-fattening pigs’ diet

    • Abstract: The present study has investigated the potential of including different sources and levels of fiber (6.5% and 7.5%) in growing-fattening pigs’ diet. The nine weeks feeding trial was conducted on nine hybrids TOPIGS castrated males with an initial average weight of 25.25±2.11 kg, randomly assigned to 3 experimental groups with 3 replicates per group.The control group (C) was fed with a corn, wheat and soybean basal diet and it was characterized by 3.5% crude fiber (CF), the experimental groups E1 had 6.5% CF (4% alfalfa meal and 12.36 % sunflower meal) and E2 had 7.5% (6% alfalfa and 18.38% sunflower meal) decreasing the dietary rate inclusion of soybean meal from C (21.42% soybean meal). Bodyweight (initial, final), average daily feed intake (ADFI), leftovers were registered and average daily gain (ADG), feed conversion ratio (FCR) were calculated during the experiment. At the end of the study, the pigs were slaughtered for the determination of carcass traits and meat quality parameters. The productive performances were not influenced by the source or level of the fiber content. The saturated fatty acid (SFA) values were significantly different (P<0.05) in E1 group for shoulder and belly samples compared to C and for breast samples on E2. Higher MUFA concentrations significantly different (P<0.05) were noticed for ham, sirloin, rack, shoulder, breast on E1. PUFA, Ω:6 concentration shown significant differences (P<0.05) within E2 to all meat samples collected, except the neck.The best carcass classification results were recorded in the E1 with 6.5% cellulose (50% Class S and 50% Class E) according to the SEUROP system classification.The study concluded that the dietary percentages of alfalfa meal and sunflower meal did not compromise productive performances but the average muscle thickness and meat percentage registered lower values compared with group C. Further studies with the same raw materials but changing the inclusion percentages should have experimented with emphasis on carcass traits results.
      PubDate: Sat, 17 Jul 2021 00:00:00 GMT
       
  • Effect of sea buckthorn meal extract in alleviating the toxic effect of
           ochratoxin A and zearalenone in porcine peripheral blood mononuclear cells
           

    • Abstract: The mycotoxins ochratoxin A (OTA) and zearalenone (ZEA) are frequent contaminants of cereals responsible for important toxic effects in human and animals. The aim of this study was to investigate the in vitro effect of the sea buckthorn meal extract in alleviating the toxic effect of ochratoxin A and zearalenone on oxidative stress and inflammation using porcine peripheral blood mononuclear cells. Our results have shown that both zearalenone and ochratoxin causes oxidative damage and alter the inflammatory response. The use of the sea buckthorn meal extract can improve some markers of the oxidative stress (total antioxidant status) and inflammation (pro-inflammatory cytokines IL-1β, TNF-α, IL-8, IL-6) altered by exposure to the mycotoxins ZEA and OTA and our results indicate that this waste represents a promising biological method that can be used for the alleviation of the mycotoxins negative effects.
      PubDate: Sat, 17 Jul 2021 00:00:00 GMT
       
  • sp. mixture alleviates LPS-induced inflammation in Caco-2 intestinal cell
           line

    • Abstract: In intestinal inflammation disorders (inflammatory bowel diseases, IBD), the strategies of chronic inflammation management are oriented to the alternative therapies. There were demonstrated the beneficial effects of probiotics as modulators of intestinal inflammation. The present study aimed to investigate the effects of a probiotic Lactobacilli mixture on pro-inflammatory cytokines and in-depth MAPK signalling pathway in an in vitro model of intestinal inflammation. Intestinal Caco-2 cells were stimulated with bacterial lipopolysaccharide (LPS) for 4 hours; cells were cultured in presence of Lactobacilli sp. (Lb) mixture (Lb rhamnosus, Lb. paracasei and Lb. acidophilus, 1x108 CFU each Lb) for additional 24 hours. Genomic and proteomic analyses were performed to evaluate 22 inflammatory-related genes and proteins (cytokines and their receptors) and p38/JNK/ERK MAP kinases. The Lactobacilli mixture inhibited the pro-inflammatory cytokines expression in LPS-treated Caco-2 cells, the most affected cytokines being TNF-α and IL-12 p70 and up-regulated the anti-inflammatory cytokines IL-4 and IL-10 genes and proteins when compared to LPS-stimulated. A percent of 66% of genes and 60 % of MAPKs proteins were down-regulated by Lb mixture, under the level of LPS-treated cells. Our data suggest that Lactobacilli mixture might inhibit pro-inflammatory cytokines via p38/JNK/ERK MAPKs signalling pathways in LPS-stimulated Caco-2 cells.
      PubDate: Sat, 17 Jul 2021 00:00:00 GMT
       
  • The effects of a low dose OTA exposure on weanling piglet gut microbiota

    • Abstract: Feed contamination is a major concern to the pig farming industry. There is a growing concern towards the harmful effects that mycotoxins and especially ochratoxin A have on the overall health and development of pigs.However the deleterious effects on the gastro-intestinal microbiota has not been studied thoroughly, especially at a low dose exposure. The current study proposed to investigate the effect of a sub-chronic dose of OTA on some of the important bacterial populations colonizing the pig gut as well as assessing the impact on SCFA production. The changes induced in bacterial populations not only affect the immune system of the pig but also influence the development of the mycotoxicosis. This paper highlights the impact of 0.05mg/kg feed of OTA on the large intestine microbiota and on the SCFA production associated with it.
      PubDate: Sat, 17 Jul 2021 00:00:00 GMT
       
  • Response of antioxidant status in kidney of pigs exposed to aflatoxin B1
           to dietary grape seed meal

    • Abstract: This study investigated the effects of dietary inclusion of grape seed meal (GSM) on antioxidant markers in kidney of aflatoxin B1 fed pigs. Twenty-four cross-bred pigs (TOPIG-40) were randomly assigned to one of the four experimental diets: control (Control), aflatoxin B1 (diet contaminated with 320 μg AFB1/kg feed), grape seed meal (diet with 8% GSM) and AFB1+GSM (320 μg AFB1/kg feed + 8% GSM) for 30 days. Aflatoxin B1 induced oxidative damage and showed lower antioxidant status in kidney after 30 days. CAT and SOD activity measured in kidneys revealed significant differences when comparing the GSM+AFB1 group with the AFB1 group. Additionally, GSM diet alone did not affect CAT and SOD levels in kidneys of piglets compared with the control group, suggesting that they are maintained at physiological levels. We did not detect any effects of GSM on GPx and TAS. Including GSM into piglets’ diet significantly lowered lipid peroxidation induced by AFB1, while it did not affect it compared with the control group. The present study demonstrated the ability of GSM to alleviate the effects induced by the toxin evidenced by the improvement in the antioxidant status, and suggests the potential applicability of GSM as mycotoxin adsorbent in animal feed.
      PubDate: Sat, 17 Jul 2021 00:00:00 GMT
       
 
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