Publisher: SciELO   (Total: 911 journals)

 A  B  C  D  E  F  G  H  I  J  K  L  M  N  O  P  Q  R  S  T  U  V  W  X  Y  Z  

        1 2 3 4 5 | Last   [Sort by number of followers]   [Restore default list]

Showing 1 - 200 of 911 Journals sorted alphabetically
Abanico Veterinario     Open Access   (Followers: 3)
ABCD. Arquivos Brasileiros de Cirurgia Digestiva     Open Access   (Followers: 3, SJR: 0.207, CiteScore: 1)
ACIMED     Open Access   (Followers: 1)
Acta Agronómica     Open Access  
Acta Amazonica     Open Access   (Followers: 7, SJR: 0.36, CiteScore: 1)
Acta Bioethica     Open Access   (SJR: 0.196, CiteScore: 0)
Acta Bioquimica Clinica Latinoamericana     Open Access   (Followers: 1)
Acta Botanica Brasilica     Open Access   (Followers: 3, SJR: 0.325, CiteScore: 1)
Acta botánica mexicana     Open Access   (Followers: 1, SJR: 0.212, CiteScore: 0)
Acta Botánica Venezuelica     Open Access   (Followers: 1, SJR: 0.103, CiteScore: 0)
Acta Cirurgica Brasileira     Open Access   (SJR: 0.395, CiteScore: 1)
Acta Limnologica Brasiliensia     Open Access   (Followers: 4, SJR: 0.28, CiteScore: 1)
Acta Literaria     Open Access   (Followers: 5, SJR: 0.1, CiteScore: 0)
Acta Medica Colombiana     Open Access   (Followers: 1)
Acta Médica Costarricense     Open Access   (Followers: 2)
Acta Medica Peruana     Open Access   (Followers: 2)
Acta Neurológica Colombiana     Open Access   (Followers: 2)
Acta Nova     Open Access   (Followers: 1)
Acta Obstétrica e Ginecológica Portuguesa     Open Access   (Followers: 1)
Acta Ortopédica Brasileira     Open Access   (Followers: 1, SJR: 0.343, CiteScore: 1)
Acta Paulista de Enfermagem     Open Access   (Followers: 3, SJR: 0.275, CiteScore: 1)
Acta Pediátrica Costarricense     Open Access   (Followers: 1)
Acta Poética     Open Access   (Followers: 4, SJR: 0.101, CiteScore: 0)
Acta Portuguesa de Nutrição     Open Access   (Followers: 1)
Acta Scientiarum. Agronomy     Open Access   (Followers: 6, SJR: 0.431, CiteScore: 1)
Acta Scientiarum. Animal Sciences     Open Access   (Followers: 4, SJR: 0.25, CiteScore: 0)
Acta zoológica mexicana     Open Access   (Followers: 1)
Actas Odontológicas     Open Access   (Followers: 1)
Actualidades Biológicas     Open Access   (Followers: 1)
African Human Rights Law J.     Open Access   (Followers: 19)
African Natural History     Open Access   (Followers: 4, SJR: 0.198, CiteScore: 1)
Afro-Asia     Open Access  
Ágora - studies in psychoanalytic theory     Open Access   (Followers: 3, SJR: 0.132, CiteScore: 0)
Agricultura Tecnica     Open Access   (Followers: 5)
Agricultura, Sociedad y Desarrollo     Open Access   (Followers: 3)
Agrociencia     Open Access   (Followers: 1, SJR: 0.2, CiteScore: 0)
Agrociencia Uruguay     Open Access  
Agronomía Mesoamericana     Open Access   (Followers: 1)
Agronomía Tropical     Open Access   (Followers: 2)
Aisthesis     Open Access   (Followers: 7, SJR: 0.106, CiteScore: 0)
Ajayu Órgano de Difusión Científica del Departamento de Psicología UCBSP     Open Access  
Alea : Estudos Neolatinos     Open Access   (Followers: 2, SJR: 0.1, CiteScore: 0)
Aletheia : Revista de Desarrollo Humano, Educativo y Social Contemporáneo     Open Access   (Followers: 1)
Alfa : Revista de Linguística     Open Access  
Alpha (Osorno)     Open Access   (SJR: 0.138, CiteScore: 0)
Alteridades     Open Access   (Followers: 2)
Ambiente & sociedade     Open Access   (Followers: 3, SJR: 0.235, CiteScore: 0)
Ambiente & Agua : An Interdisciplinary J. of Applied Science     Open Access   (Followers: 1, SJR: 0.263, CiteScore: 1)
Ambiente Construído     Open Access   (Followers: 1)
América Latina en la historia económica     Open Access   (Followers: 4, SJR: 0.134, CiteScore: 0)
Anais Brasileiros de Dermatologia     Open Access   (Followers: 2, SJR: 0.52, CiteScore: 1)
Anais da Academia Brasileira de Ciências     Open Access   (Followers: 2, SJR: 0.418, CiteScore: 1)
Anais do Museu Paulista : História e Cultura Material     Open Access  
Anales de Medicina Interna     Open Access   (Followers: 1)
Anales del Instituto de la Patagonia     Open Access  
Anales del Sistema Sanitario de Navarra     Open Access   (Followers: 1, SJR: 0.157, CiteScore: 0)
Análise Psicológica     Open Access   (Followers: 1, SJR: 0.16, CiteScore: 0)
Análise Social     Open Access   (Followers: 4, SJR: 0.16, CiteScore: 0)
Análisis Economico     Open Access  
Andean geology     Open Access   (Followers: 9, SJR: 0.674, CiteScore: 1)
Anestesia Analgesia Reanimación     Open Access   (Followers: 1)
Anestesia en México     Open Access   (Followers: 1)
Antipoda : Revista de Antropología y Arqueología     Open Access   (Followers: 5, SJR: 0.135, CiteScore: 0)
Antropología Social y Cultural en Uruguay     Open Access   (Followers: 1)
Anuario Colombiano de Historia Social y de la Cultura     Open Access   (SJR: 0.1, CiteScore: 0)
Anuario de Historia Regional y de las Fronteras     Open Access  
Anuario de Letras : Lingüística y Filología     Open Access   (Followers: 1)
Apuntes : Revista de Estudios sobre Patrimonio Cultural - J. of Cultural Heritage Studies     Open Access   (Followers: 7)
Aquichán     Open Access   (Followers: 2, SJR: 0.137, CiteScore: 0)
Archivos de Medicina Interna     Open Access   (Followers: 1)
Archivos de Medicina Veterinaria     Open Access   (Followers: 1, SJR: 0.194, CiteScore: 0)
Archivos de Neurociencias     Open Access   (Followers: 3, SJR: 0.111, CiteScore: 0)
Archivos de Pediatria del Uruguay     Open Access   (Followers: 3)
Archivos de Prevención de Riesgos Laborales     Open Access   (Followers: 1)
Archivos de Zootecnia     Open Access   (Followers: 1, SJR: 0.202, CiteScore: 0)
Archivos Españoles de Urología     Open Access   (SJR: 0.178, CiteScore: 0)
Archivos Latinoamericanos de Nutrición     Open Access   (Followers: 1)
Archivos Venezolanos de Farmacología y Terapéutica     Open Access   (SJR: 0.101, CiteScore: 0)
Argos     Open Access   (Followers: 1)
ARQ     Open Access   (Followers: 6, SJR: 0.113, CiteScore: 0)
Arquitectura y Urbanismo     Open Access   (Followers: 4)
Arquivo Brasileiro de Medicina Veterinária e Zootecnia     Open Access   (SJR: 0.248, CiteScore: 0)
Arquivos Brasileiros de Cardiologia     Open Access   (Followers: 2, SJR: 0.381, CiteScore: 1)
Arquivos Brasileiros de Endocrinologia e Metabologia     Open Access  
Arquivos Brasileiros de Oftalmologia     Open Access   (Followers: 1, SJR: 0.518, CiteScore: 1)
Arquivos Brasileiros de Psicologia     Open Access   (Followers: 1, SJR: 0.196, CiteScore: 0)
Arquivos de Gastroenterologia     Open Access   (Followers: 1, SJR: 0.396, CiteScore: 1)
Arquivos de Medicina     Open Access   (Followers: 1)
Arquivos de Neuro-Psiquiatria     Open Access   (SJR: 0.448, CiteScore: 1)
Arquivos do Instituto Biológico     Open Access   (Followers: 1)
Arquivos Internacionais de Otorrinolaringologia     Open Access  
ARS     Open Access   (Followers: 4)
Atenea (Concepción)     Open Access   (SJR: 0.112, CiteScore: 0)
Atmósfera     Open Access   (Followers: 3, SJR: 0.449, CiteScore: 1)
Audiology - Communication Research     Open Access   (Followers: 10)
Austral J. of Veterinary Sciences     Open Access   (Followers: 2)
Avaliação : Revista da Avaliação da Educação Superior (Campinas)     Open Access  
Avaliação Psicológica     Open Access   (SJR: 0.164, CiteScore: 0)
Avances en Enfermería     Open Access   (Followers: 3)
Avances en Odontoestomatologia     Open Access   (Followers: 1, SJR: 0.105, CiteScore: 0)
Avances en Periodoncia e Implantología Oral     Open Access   (Followers: 1)
Bakhtiniana : Revista de Estudos do Discurso     Open Access   (SJR: 0.103, CiteScore: 0)
BAR. Brazilian Administration Review     Open Access   (Followers: 2, SJR: 0.137, CiteScore: 0)
Bioagro     Open Access   (Followers: 1, SJR: 0.207, CiteScore: 0)
Biosalud     Open Access   (Followers: 1)
Biota Neotropica     Open Access   (SJR: 0.381, CiteScore: 1)
Biotecnología Aplicada     Open Access   (SJR: 0.146, CiteScore: 0)
Biotecnología en el Sector Agropecuario y Agroindustrial     Open Access  
Boletim Academia Paulista de Psicologia     Open Access  
Boletim de Ciências Geodésicas     Open Access   (SJR: 0.188, CiteScore: 0)
Boletim de Educação Matemática     Open Access   (SJR: 0.196, CiteScore: 0)
Boletim do Museu Paraense Emílio Goeldi. Ciências Humanas     Open Access   (Followers: 1, SJR: 0.238, CiteScore: 0)
Boletin Chileno de Parasitologia     Open Access  
Boletín Científico : Centro de Museos. Museo de Historia Natural     Open Access   (Followers: 1)
Boletín de Filología     Open Access  
Boletín de la Sociedad Botánica de México     Open Access  
Boletin de la Sociedad Chilena de Quimica     Open Access  
Boletín de la Sociedad Geológica Mexicana     Open Access   (SJR: 0.291, CiteScore: 1)
Boletín del Museo Chileno de Arte Precolombino     Open Access   (Followers: 1, SJR: 0.233, CiteScore: 0)
Boletin Mexicano de Derecho Comparado     Open Access   (Followers: 2, SJR: 0.107, CiteScore: 0)
Bosque     Open Access   (Followers: 2, SJR: 0.29, CiteScore: 1)
Bragantia     Open Access   (Followers: 2, SJR: 0.555, CiteScore: 1)
Brazilian Archives of Biology and Technology     Open Access   (Followers: 3, SJR: 0.281, CiteScore: 1)
Brazilian Business Review     Open Access  
Brazilian Dental J.     Open Access   (Followers: 4, SJR: 0.476, CiteScore: 1)
Brazilian J. Geology     Open Access   (Followers: 1)
Brazilian J. of Biology     Open Access   (Followers: 3, SJR: 0.523, CiteScore: 1)
Brazilian J. of Chemical Engineering     Open Access   (Followers: 5, SJR: 0.395, CiteScore: 1)
Brazilian J. of Food Technology     Open Access   (Followers: 3, SJR: 0.206, CiteScore: 0)
Brazilian J. of Medical and Biological Research     Open Access   (SJR: 0.611, CiteScore: 2)
Brazilian J. of Microbiology     Open Access   (Followers: 5, SJR: 0.63, CiteScore: 2)
Brazilian J. of Oceanography     Open Access   (Followers: 1, SJR: 0.425, CiteScore: 1)
Brazilian J. of Oral Sciences     Open Access   (Followers: 2, SJR: 0.131, CiteScore: 0)
Brazilian J. of Pain (BrJP)     Open Access  
Brazilian J. of Physical Therapy     Open Access   (Followers: 2, SJR: 0.802, CiteScore: 2)
Brazilian J. of Plant Physiology     Open Access   (Followers: 3, SJR: 1.178, CiteScore: 3)
Brazilian J. of Veterinary Research and Animal Science     Open Access   (Followers: 8, SJR: 0.225, CiteScore: 0)
Brazilian Oral Research     Open Access  
Brazilian Political Science Review     Open Access   (Followers: 2)
Bulletin of the World Health Organization     Open Access   (Followers: 22, SJR: 2.532, CiteScore: 3)
Caderno CRH     Open Access   (Followers: 3, SJR: 0.233, CiteScore: 0)
Caderno de Estudos     Open Access  
Cadernos CEDES     Open Access   (Followers: 1, SJR: 0.119, CiteScore: 0)
Cadernos de Pesquisa     Open Access   (Followers: 2, SJR: 0.183, CiteScore: 0)
Cadernos de Saúde Pública     Open Access   (Followers: 1, SJR: 0.568, CiteScore: 1)
Cadernos de Tradução : Universidade Federal de Santa Catarina     Open Access  
Cadernos Metrópole     Open Access   (Followers: 1)
Cadernos Nietzsche     Open Access  
Cadernos Pagu     Open Access   (SJR: 0.356, CiteScore: 0)
Cadernos Saúde Coletiva     Open Access   (Followers: 1)
Caldasia     Open Access   (SJR: 0.195, CiteScore: 0)
Calidad en la educación     Open Access   (Followers: 1)
Case Reports     Open Access  
Cerâmica     Open Access   (Followers: 5, SJR: 0.186, CiteScore: 0)
CERNE     Open Access   (Followers: 1, SJR: 0.368, CiteScore: 1)
CES Medicina     Open Access  
CES Medicina Veterinaria y Zootecnia     Open Access   (Followers: 1)
CES Psicología     Open Access   (Followers: 1)
Chilean J. of Agricultural & Animal Sciences     Open Access   (Followers: 1)
Chilean J. of Agricultural Research     Open Access   (Followers: 1, SJR: 0.377, CiteScore: 1)
Chungara (Arica) - Revista de Antropologia Chilena     Open Access   (Followers: 1, SJR: 0.565, CiteScore: 1)
Ciência & Saúde Coletiva     Open Access   (Followers: 2, SJR: 0.566, CiteScore: 1)
Ciência & Educação (Bauru)     Open Access  
Ciência Animal Brasileira     Open Access   (Followers: 1, SJR: 0.216, CiteScore: 0)
Ciência da Informação     Open Access   (Followers: 1, SJR: 0.121, CiteScore: 0)
Ciencia del suelo     Open Access   (Followers: 2)
Ciência e Agrotecnologia     Open Access   (SJR: 0.383, CiteScore: 1)
Ciencia e Cultura     Open Access   (Followers: 1)
Ciencia e Ingenieria Neogranadina     Open Access  
Ciencia e Investigación Agraria     Open Access   (Followers: 1, SJR: 0.211, CiteScore: 0)
Ciencia forestal en México     Open Access  
Ciência Rural     Open Access   (Followers: 2, SJR: 0.337, CiteScore: 1)
Ciencia y Enfermeria - Revista Iberoamericana de Investigacion     Open Access   (Followers: 3, SJR: 0.158, CiteScore: 0)
Ciencias Marinas     Open Access   (Followers: 3, SJR: 0.414, CiteScore: 1)
Ciencias Psicológicas     Open Access  
Cirugia Plastica Ibero-Latinoamericana     Open Access   (SJR: 0.166, CiteScore: 0)
Cirujano General     Open Access   (Followers: 1)
Civilizar Ciencias Sociales y Humanas     Open Access   (Followers: 3)
Civitas - Revista de Ciências Sociais     Open Access   (Followers: 3)
CLEI Electronic J.     Open Access  
Clínica y Salud     Open Access   (SJR: 0.173, CiteScore: 0)
Clinics     Open Access   (SJR: 0.536, CiteScore: 1)
Co-herencia     Open Access   (SJR: 0.106, CiteScore: 0)
CoDAS     Open Access   (SJR: 0.267, CiteScore: 0)
Cofin Habana     Open Access   (Followers: 1)
Colombia Internacional     Open Access   (Followers: 1, SJR: 0.218, CiteScore: 0)
Compendio de Ciencias Veterinarias     Open Access   (Followers: 1)
Computación y Sistemas     Open Access   (SJR: 0.226, CiteScore: 1)
Comuni@cción     Open Access   (Followers: 1)
Comunicación y sociedad     Open Access   (Followers: 2, SJR: 0.327, CiteScore: 0)
Concreto y cemento. Investigación y desarrollo     Open Access   (Followers: 1)
Confines     Open Access  
Contaduría y Administración     Open Access   (SJR: 0.219, CiteScore: 0)
Contexto Internacional     Open Access  
Convergencia     Open Access   (Followers: 3, SJR: 0.196, CiteScore: 0)
Correo Científico Médico     Open Access  
Corrosão e Protecção de Materiais     Open Access  
Crop Breeding and Applied Biotechnology     Open Access   (Followers: 3, SJR: 0.609, CiteScore: 1)
CT&F - Ciencia, Tecnología y Futuro     Open Access   (Followers: 1, SJR: 0.138, CiteScore: 0)
Cuadernos de Administración     Open Access   (SJR: 0.118, CiteScore: 0)

        1 2 3 4 5 | Last   [Sort by number of followers]   [Restore default list]

Similar Journals
Journal Cover
Abanico Veterinario
Number of Followers: 3  

  This is an Open Access Journal Open Access journal
ISSN (Print) 2007-428X - ISSN (Online) 2448-6132
Published by SciELO Homepage  [911 journals]
  • Antibacterial activity of the Croton draco hidroalcoholic extract on
           bacteria of sanitary importance

    • Abstract: RESUMEN La Organización Mundial de Sanidad Animal (OIE) menciona que el uso inadecuado de antibióticos ha propiciado la aparición de cepas bacterias resistentes a los mecanismos de acción de estos fármacos, debido a la escasez de terapias efectivas se requiere del desarrollo de nuevas opciones de tratamiento para enfermedades que afectan la salud, al respecto los extractos de plantas o bien sus compuestos puros ofrecen una alternativa. El objetivo de la presente investigación fue caracterizar y evaluar la actividad antibacteriana in vitro del extracto hidroalcohólico de Croton draco sobre bacterias de importancia sanitaria. El extracto se obtuvo mediante maceración hidroalcohólica, se realizó una caracterización cualitativa y química del extracto, la actividad antibacteriana se determinó mediante la Concentración Mínima Inhibitoria (CMI) y la Concentración Mínima Bactericida (CMB). Los ensayos de caracterización cualitativa realizados al extracto hidroalcohólico de Croton draco indican la presencia de compuestos fenólicos, terpenos, saponinas y alcaloides, por cromatografía de gases se determinó por primera vez la presencia de timol y carvacrol en concentraciones de 0.5340 mg/ml y 0.4206 mg/mL respectivamente. Las bacterias mostraron diferentes grados de sensibilidad, sin embargo, se determinó una mayor actividad frente a bacterias Gram positivas como L. monocytogenes, S. aureus y B. subtillis.ABSTRACT The World Organization for Animal Health (OIE) mentions that the inappropriate use of antibiotics has led to the emergence of strains of resistant bacteria to the mechanisms of action of these drugs, due to the scarcity of effective therapies, the development of new treatment options is required for diseases that affect health, in this respect plant extracts or their pure compounds offer an alternative. The aim of the present investigation was to characterize and evaluate the in vitro antibacterial activity of the hydroalcoholic extract of Croton draco on bacteria of sanitary importance. The extract was obtained by hydroalcoholic maceration, a qualitative and chemical characterization of the extract was carried out, and the antibacterial activity was determined by the Minimum Inhibitory Concentration (MIC) and the Minimum Bactericidal Concentration (MBC). The qualitative characterization tests performed on the hydroalcoholic extract of Croton draco indicate the presence of phenolic compounds, terpenes, saponins and alkaloids, by gas chromatography the presence of thymol and carvacrol was determined in concentrations of 0.5340 mg/ml and 0.4206 mg/mL respectively. The bacteria showed different degrees of sensitivity to the hydroalcoholic extract, however, greater activity was determined against Gram positive bacteria such as Listeria monocytogenes, Staphylococcus aureus and Bacillus subtilis.
       
  • Antioxidant effect of Trolox and Crocina on the cryopreservation of
           Pelibuey ovine semen

    • Abstract: RESUMEN El objetivo del estudio fue evaluar el efecto de los antioxidantes Trolox y Crocina en el diluyente de congelación sobre la criopreservación del semen de ovino Pelibuey. Los eyaculados obtenidos se mezclaron, dividieron y congelaron en 3 tratamientos: T1: Trolox 1mM; T2: Crocina 1mM; TT: Testigo (sin antioxidante). Se analizó a las 0 horas (descongelación) y 6 horas a 37 °C, la motilidad total (MT) y progresiva (MP), la viabilidad espermática, la actividad mitocondrial, la integridad de los acrosomas y de la membrana de la cola (Host). Los datos se analizaron con un ANOVA para un diseño completamente al azar y una prueba de Tukey para la comparación de medias. En ninguna de las dos horas se encontraron diferencias significativas en los tratamientos (P>0.05). Sin embargo, de 0 a 6h, la MT se comportó de forma similar en el T1 y T2, pero no así en el TT (P<0.01), por el contrario, la integridad de los acrosomas en los tres tratamientos fue similar (P>0.05). La MP, viabilidad, actividad mitocondrial y Host disminuyeron con el tiempo de forma similar en los tres tratamientos. Los antioxidantes Trolox y Crocina a 1mM en el diluyente de congelación, permiten mantener la MT y la integridad de los acrosomas durante 6 h de incubación a 37 °C.ABSTRACT The objective of the study was to evaluate the effect of the antioxidants Trolox and Crocina in the freezing diluent on the cryopreservation of Pelibuey ovine semen. The ejaculates obtained were mixed, divided and frozen in 3 treatments: T1: 1mM Trolox; T2: 1mM Crocina; TT: Control (without antioxidant). At 0 hours (defrosting) and 6 hours at 37 °C, total (MT) and progressive (MP) motility, sperm viability, mitochondrial activity, integrity of acrosomes and tail membrane were analyzed (Host) The data was analyzed with an ANOVA for a completely randomized design and a Tukey test for the comparison of means. In neither of the two hours were significant differences found in the treatments (P> 0.05). However, from 0 to 6h, MT behaved similarly in T1 and T2, but not in TT (P <0.01), on the contrary, the integrity of acrosomes in all three treatments was similar (P> 0.05). MP, viability, mitochondrial activity and Host decreased over time in a similar way in all three treatments. The antioxidants Trolox and Crocina at 1mM in the freezing diluent, allow to maintain the MT and the integrity of the acrosomes for 6 h of incubation at 37 °C.
       
  • Antibacterial effect of the methanol extract of Salix babylonica against
           important bacteria in public Health

    • Abstract: RESUMEN El uso excesivo de antimicrobianos ha generado resistencia de los microorganismos a estos, se han buscado alternativas que sean eficaces para el tratamiento de enfermedades producidas por microorganismos resistentes o multirresistentes a antibióticos, dentro de estas alternativas están las plantas, las cuales por su contenido de compuesto secundarios presentan actividad antibacteriana. El objetivo del presente estudio fue caracterizar y determinar la actividad antibacteriana del extracto metanólico de Salix babylonica (SB) sobre bacterias de importancia en salud pública. Para la obtención del extracto se utilizó la técnica de maceración, se realizó una caracterización química cualitativa y cuantitativa por cromatografía de gases. Para determinar la actividad antibacteriana, se determinó la Concentración Mínima Inhibitoria (CMI) y la Concentración Mínima Bactericida (CMB) y la caracterización del extracto permitió identificar compuestos fenólicos, cumarinas, lactonas, flavonoles, quinonas, saponinas, triterpenos y compuestos esteroidales, además de Timol (0.5319 mg/mL) y Carvacrol (0.4158 mg/ml). Con respecto a la actividad antibacteriana la mejor actividad se presentó contra Bacillus. subtillis (CMI: 12.5 mg/mL y CMB: 25 mg/mL), Listeria. monocytogenes y Staphylococcus. aureus (CMI: 25 mg/mL y CMB: 50 mg/mL). Se concluye que el extracto metanólico de SB puede ser una alternativa para el tratamiento de enfermedades producidas por bacterias resistentes o multirresistentes a antibióticos.ABSTRACT The excessive use of antibiotics, has generated resistance of microorganisms to these, have been searched effectives alternatives for treating diseases caused by resistant or multiresistant microorganism, and within of these alternatives are plants, which by its content of secondary compounds have antibacterial activity. The aim on the present experiment was characterize and determine the antibacterial activity of methanolic extract of Salix babylonica (SB) against important bacteria in public health. To obtain extract, the maceration technique was used, qualitative and quantitative (gas chromatography) chemical characterization was carried. For antibacterial activity, the Minimum Inhibitory Concentration (MIC) and Minimum Bactericidal Concentration (MBC) was determined, the characterization of the extract allowed the identification of phenolic compounds, coumarins, lactones, flavonols, quinones, saponins, triterpenes and steroidal compounds, also Thymol (0.5319 mg/mL) and Carvacrol (0.4158 mg/mL). The extract showed the best activity against Bacillus. subtilis (MIC: 12.5 mg/mL and WBC: 25 mg/mL), Listeria. monocytogenes and Staphylococcus. aureus (MIC: 25 mg/mL and MBC: 50 mg/mL). It is concluded that the methanolic extract of SB can be an alternative for the treatment of diseases produced by resistant or multiresistant bacteria to antibiotics.
       
  • Prevalence of Fasciola hepatica in fighting bulls breed

    • Abstract: RESUMEN La fasciolosis sigue siendo una parasitosis frecuente dentro del bovino en extensivo, a pesar de la gran implantación y eficacia de fármacos fasciolicidas. En el presente trabajo se ha estudiado durante cinco años la prevalencia de Fasciola hepatica analizando 251 bovinos de lidia, evaluando la presencia de lesiones macroscópicas hepáticas. A su vez, su relación con la temperatura y pluviometría media del año, y describir sus consecuencias fisiopatológicas durante el festejo taurino. Metodología: se llevó a cabo en Madrid (julio-septiembre 2013-2017). Resultados: n=251 animales en los cinco años, 50.20±2.68 evaluados al año, de los cuales, 14 presentaron lesiones, de media 2.80±1.64 al año. Asimismo, se reseñaron en el reconocimiento un total de 4 animales compatibles con lesiones en los cinco años, de media 0.80±0.84 animales al año. La temperatura media anual fue de 15.78±0.48°C y la pluviometría media anual de 570.20±102.21mm. Se observa correlación estadística entre las canales con lesiones y la pluviometría media anual (P<0.01) y con la temperatura media anual (P<0.05). Se obtienen prevalencias medias (5.61±2.82) inferiores a las descritas por diferentes autores, junto con condiciones climatológicas compatibles con el crecimiento del parásito y de todos sus hospedadores intermediarios. El estudio revela que un buen uso de los antiparasitarios no es del todo efectivo en este tipo de explotaciones.ABSTRACT Fasciolosis remains a frequent parasitosis within the bovine in extensive, despite the great implantation and efficacy of fasciolicides drugs. In the present work, the prevalence of Fasciola hepatica has been studied for five years, analyzing 251 cattle in the fight, evaluating the presence of hepatic macroscopic lesions. In turn, its relationship with the average temperature and rainfall of the year, and describe its pathophysiological consequences during the bullfighting celebration. Methodology: it was carried out in Madrid (July-September 2013-2017). Results: n = 251 animals in the five years, 50.20 ± 2.68 evaluated per year, of which 14 had lesions, on average 2.80 ± 1.64 per year. Likewise, a total of 4 animals compatible with lesions in the five years, on average 0.80 ± 0.84 animals per year, were reviewed. The average annual temperature was 15.78 ± 0.48 °C and the average annual rainfall was 570.20 ± 102.21mm. Statistical correlation is observed between the channels with lesions and the average annual rainfall (P <0.01) and with the average annual temperature (P <0.05). Average prevalences (5.61 ± 2.82) are lower than those described by different authors, together with weather conditions compatible with the growth of the parasite and all its intermediate hosts. The study reveals that a good use of antiparasitic agents is not entirely effective in this type of farms.
       
  • Animal welfare evaluation in Bovans White laying hens on floor housing

    • Abstract: RESUMEN El interés por el bienestar de las gallinas ponedoras ha ido en aumento y algunos estudios consideran que el sistema de alojamiento en jaulas proporciona un bienestar deficiente en las gallinas. Este tipo de estudios son de gran interés en México debido a que es el principal consumidor mundial de huevos (22.8 Kg per cápita anual) y cuarto productor a nivel internacional. Por lo tanto, el objetivo de la investigación fue realizar un estudio sobre el bienestar de gallinas ponedoras en piso. Para este propósito, 50 gallinas Bovans White fueron alojadas en piso, con espacio de 1,200 cm2 por ave. Fueron evaluadas a las 22, 30 y 62 semanas de edad su comportamiento, estado de salud, las variables de producción y la calidad física del huevo. Durante el estudio se observaron de manera general diferencias (P<0.05) en tiempo y frecuencia de las siguientes conductas: baño de tierra, echarse, explorar y forrajear. Por otra parte, la calidad física del huevo cumplió las normativas al respecto. Al final del estudio las gallinas mostraron un buen estado de salud y un amplio repertorio de conductas.ABSTRACT Laying hen welfare has been studied increasingly, some works concluded that the cage housing system provides poor welfare for laying hens. These have a great interest in Mexico because it is the world's leading egg consumer (22.8 kg per capita by year) and the fourth leading producer. The aim of this work was to evaluate laying hen welfare. Fifty 22-weeks-old Bovans White laying hens were housed in the floor, assigning 1200 cm2 per hen. Behavior, health, production parameters, and egg physical quality were evaluated at 22, 30 and 62 weeks. There was a difference (P<0.05) throughout the study in frequency and time of the following behaviors: dust bath, lie down, exploring and foraging. On the other hand, egg physical quality was according to the national regulations. At the end of the study, hens had good physical health and a wide behavior repertory.
       
  • Orange by-products use (Citrus sinensis var.valencia) in
           ruminants feed

    • Abstract: RESUMEN Este trabajo tuvo como objetivo elaborar un concentrado alimenticio con subproductos de naranja valencia Citrus sinensis var. valencia como suplemento para toretes de engorda en el norte del estado de Veracruz. Se desarrolló en una Unidad de Producción Pecuaria (UPP) del Municipio de Álamo-Temapache, Veracruz. Geográficamente localizado entre los meridianos Latitud norte: 20° 55' 19", Latitud oeste 97° 41' 44”. La localidad se encuentra a una altura de 40 msnm y temperatura media anual de 19-36°C. Se evaluaron, 40 toretes Cebú x Suizo, con un peso aproximado de 300 Kg, que fueron estabulados y asignados bajo un diseño completamente aleatorio en cuatro tratamientos y diez repeticiones (n=10 c/u). T1 (testigo) forraje fresco; T2: concentrado formulado a base de bagazo de naranja + forraje fresco; T3: concentrado formulado con cascara de naranja + forraje fresco; T4: concentrado formulado a base de ensilado de naranja + forraje fresco. El alimento se ofreció dos veces al día a libre acceso considerando el 3.0% (NRC) del peso vivo durante los 90 días del experimento, realizándose dos pesajes al inicio y final. El promedio de ganancia diaria (P < 0.05) fue 2.97 kg/animal y rendimiento en canal fría de 55.3%, para los animales que recibieron una suplementación de subproductos a base de silo naranja (T4) al 13.3% PC, promovió un mayor rendimiento en los bovinos de engorda.ABSTRACT This study was aimed to elaborate a young bull fattening supplement with Valencia orange by-products (Citrus sinensis var. valencia) in the north of Veracruz state. It was performed in a Livestock Production Unit (UPP) from the Municipality of Álamo-Temapache, Veracruz. Geographically located at North latitude: 20° 55' 19", West latitude 97° 41' 44. This place is found at 40 meters height above sea level with an average annual temperature of 19-36 ° C. 40 Zebu x Swiss bulls, with 300 kg weight approximately, were housed and assigned under a completely randomized design in four treatments, and ten repetitions (n = 10). T1 (control) fresh forage; T2: formulated concentrate based on orange bagasse + fresh forage; T3: concentrate formulated with orange peel + fresh forage; T4: concentrate formulated with orange silage + fresh forage. Food was offered twice a day "ad libitum" considering 3.0 % (NRC) of the live weight during the 90 days of the experiment, with two weightings at the beginning and at the end. The average daily gain (P<0.05) was 2.97 kg/animal and the cold carcass yield was 55.3%, to the animals that received a by-product supplementation based on orange silo (T4) 13.3% PC it promoted higher performance in fattening cattle.
       
  • Pesticides residues in honey and wax from bee colonies in La Comarca
           Lagunera

    • Abstract: RESUMEN Las abejas melíferas son importantes para la seguridad alimentaria y el mantenimiento de la biodiversidad. Se ha presentado un colapso de las colonias ocasionado por la exposición a plaguicidas. El objetivo fue determinar y cuantificar la presencia de plaguicidas en miel y cera de colonias de abejas bajo colapso (BC), con (CA) y sin antecedentes de colapso (SA). Se analizaron cinco muestras de miel y cinco de cera de colonias CA y SA, así como dos de miel y de cera BC; las muestras fueron analizadas por LC-QTOF y GC- MS/MS. Se detectaron en total 24 plaguicidas en miel y cera. El acetamiprid se encontró en el 100% de las muestras. En las colonias BC, presentaron en promedio altos niveles de acetamiprid en cera y miel (0.402 y 0.633 mg kg-1 respectivamente). Para las colonias CA, los promedios de acetamiprid fueron 0.686 y 0.266 mg kg-1 para cera y miel respectivamente, en las colonias SA, los promedios del acetamiprid en cera y miel fueron 0.234 y 0.404 mg kg-1 respectivamente. En conclusión, las colonias CA presentaron la mayor diversidad de plaguicidas seguidas por SA y BC. Estos resultados podrían sugerir la participación de los plaguicidas como causa del colapso de las colonias.ABSTRACT Honeybees are important for food security and biodiversity preservation. There has been a collapse of the colonies caused by exposure to pesticides. The aim was to determine and quantify the presence of pesticides in honey and wax from bee colonies, under collapse (BC) and with (CA) and without antecedent of collapse (SA). Five honey samples and five colony wax samples were analyzed from colonies CA y SA, as well as two of honey and two wax from colonies CB; samples were analyzed by LC-QTOF and GC- MS/MS. 24 pesticides were detected in honey and wax analyzed. Acetamiprid was found in all samples. In colonies, CB the wax and honey had high averages levels of acetamiprid (0.402 and 0.633 mg kg-1 respectively). For wax and honey from colonies CA, the averages of acetamiprid were 0.686 and 0.266 mg kg-1 respectively. In wax and honey from colonies SA the averages of acetamiprid were 0.234 and 0.404 mg kg-1 respectively. In conclusion, the colonies CA had the greatest diversity of pesticides, followed by the group SA and finally BC. Our results suggest the participation of pesticides as a cause of colony collapse.
       
 
JournalTOCs
School of Mathematical and Computer Sciences
Heriot-Watt University
Edinburgh, EH14 4AS, UK
Email: journaltocs@hw.ac.uk
Tel: +00 44 (0)131 4513762
 


Your IP address: 35.168.112.145
 
Home (Search)
API
About JournalTOCs
News (blog, publications)
JournalTOCs on Twitter   JournalTOCs on Facebook

JournalTOCs © 2009-