Temas
Mostrando ítems 1-20 de 39
-
Asociación entre inmunidad pasiva y mortalidad en terneros
(Universidad de Buenos Aires, 2018-06)La mortalidad en la cría y recría de terneras de remplazo es un factor crítico para la sustentabilidad y el progreso genético en rodeos lecheros. Varios factores de riesgo se han asociado a la muerte de los animales en las ... -
Assessment of Influential Factors for Scours Associated with Cryptosporidium sp., Rotavirus and Coronavirus in Calves from Argentinean Dairy Farms
(MDPI, 2021-09)Scours is the most common disease in dairy calves, and it is a multifactorial syndrome complex. Cryptosporidium sp. (C. sp.), rotavirus group A (RVA), and bovine coronavirus (BCoV) are the three main pathogens associated ... -
Bovine colostral cells—the often forgotten component of colostrum
(American Veterinary Medical Association, 2017-05)At birth, neonatal calves have all the essential immune components they need as adult cattle; however, it takes at least 2 to 4 weeks for those components to become fully functional.1,2 The immune system does not become ... -
Bovine leukemia virus infection in neonatal calves. Risk factors and control measures
(Frontiers Media, 2018-10)Bovine leukemia virus (BLV) is the causative agent of enzootic bovine leukosis (EBL). Although efficient eradication programs have been successfully implemented in most European countries and Oceania, BLV infection rates ... -
Case Report Outbreak of Winter Coccidiosis in calves from Northwestern Argentina
(Ediciones INTA, 2022-11)Coccidiosis is an intestinal infection caused by protozoans of the genus Eimeria. When the disease occurs in winter, it is known as winter coccidiosis. In July 2021, two calves were referred to INTA-Salta SDVE to determine ... -
Changes in hematological, biochemical, and blood gases prameters in response to progressive inclusion of nitrate in the diet of Holstein calves
(Veterinary World Publisher, 2021-01)Background and Aim: Nitrate (NO3-) reduces enteric methane emissions and could be a source of non-protein nitrogen in ruminant feeds. Nonetheless, it has a potential toxic effect that could compromise animal health and ... -
Comparación de métodos de extracción de ADN para mejorar el diagnóstico molecular de Cryptosporidium sp. en materia fecal de terneros = Comparison of DNA extraction methods to improve the molecular diagnosis of Cryptosporidium spp. from fecal samples of calves
(Universidad de Morón, 2019-07)Cryptosporidium sp. es un parásito, protozoo que infecta a una gran variedad de hospedadores vertebrados. Entre las más de 30 especies validadas en el género, la especie zoonótica Cryptosporidium parvum es la principal ... -
Crecimiento predestete de terneros Criollo argentinos
(Asociación Latinoamericana de Producción Animal, 2021-06)El peso al destete de los terneros depende principalmente de la tasa de crecimiento predestete y está asociada a la aptitud lechera de la vaca. La leche es el principal alimento disponible durante los dos primeros meses ... -
Detection and first molecular characterization of bovine papular stomatitis virus in dairy calves in Argentina
(Springer, 2019)Bovine papular stomatitis virus (BPSV) is a parapoxvirus associated with papular and erosive lesions on the muzzle, lips, and oral mucosa of cattle. BPSV infection occurs worldwide; however, it has still not been unequivocally ... -
Dinámica de la infección de terneros con Cryptosporidium parvum
(Universidad de Morón, 2017-10)Cryptosporidium sp. es un protozoo parásito que infecta a una gran variedad de vertebrados hospedadores. La especie C. parvum es el principal agente etiológico de la criptosporidiosis y representa una de las principales ... -
Diseminación de ooquistes de Criptosporidium spp. entre los 7 y 13 días de edad en terneros de un rodeo lechero
(Universidad de Buenos Aires, 2022-06)La criptosporidiosis es una enfermedad parasitaria zoonótica cosmopolita causada por protozoos del género Cryptosporidium. La principal especie reportada en terneros neonatos es Cryptosporidium parvum. El objetivo de este ... -
Dynamics of perinatal bovine leukemia virus infection
(BioMed Central, 2014)Bovine leukemia virus (BLV) is highly endemic in many countries, including Argentina. As prevention of the spread from infected animals is of primary importance in breaking the cycle of BLV transmission, it is important ... -
Dynamics of the ruminal microbial ecosystem, and inhibition of methanogenesis and propiogenesis in response to nitrate feeding to Holstein calves
(Elsevier, 2021-12)It is known that nitrate inhibits ruminal methanogenesis, mainly through competition with hydrogenotrophic methanogens for available hydrogen (H2) and also through toxic effects on the methanogens. However, there is limited ... -
Efecto de la edad al parto en vaquillonas Criollas, sobre el peso al nacer y la ganancia predestete de sus crías
(Facultad de Agronomía y Zootecnia, Universidad Nacional de Tucumán, 2014)Como en toda raza (bovino Criollo argentino), el peso de los terneros al nacimiento y la ganancia de peso desde nacimiento a destete (predestete) son variables importantes por su relación con problemas de parto y de ... -
Efecto de la sombra de un rodal de Eucapyptus en verano sobre el comportamiento y el peso de terneros al destete en un sistema de cría bovina en el norte de Buenos Aires.
(CIPAV, 2023-10-01)Shade helps to reduce the negative effects of heat stress, modifies animal behavior, and contributes to increase production rates in beef and dairy cattle. More information is needed on these effects in the north of the ... -
Efecto del consumo de Leucaena leucocephala sobre la carga parasitaria de terneros destetados con pastoreo directo
(Facultad de Ciencias Veterinarias, Universidad Nacional del Nordeste, 2019)Con el objeto de evaluar el efecto del consumo de Leucaena sp sobre la carga parasitaria gastrointestinal de terneros destetados, se lle-vó a cabo un ensayo durante 105 días en el departamento Pilagás (Formosa, Argentina). ... -
Efecto del fenotipo de la madre, mocha o astada, en el peso al nacimiento de terneros criollo argentino
(Facultad de Agronomía y Zootecnia, Universidad Nacional de Tucumán, 2014)Por otro lado, a nivel de ganaderos existe la creencia que los animales sin cuernos presentan diferencias productivas respecto a los astados. Se afirma que son de menor tamaño adulto, que tienen terneros de más bajo ... -
Effect of gastrointestinal nematodes on serum copper and phosphorus of growing beef calves in northwestern Argentina
(Springer, 2018-10)The aim of this work was to study the effect of gastrointestinal nematodes (GINs) on copper (Cu) and phosphorus (P) in blood of beef cattle in two ranches (R1 and R2) located in northwestern Argentina. In 2015–2016 (R1) ... -
Efficacy of a recombinant Intimin, EspB and Shiga toxin 2B vaccine in calves experimentally challenged with Escherichia coli O157:H7
(Elsevier, 2018-06)Escherichia coli O157:H7 is a zoonotic pathogen of global importance and the serotype of Shiga toxin-producing E. coli (STEC) most frequently associated with Hemolytic Uremic Syndrome (HUS) in humans. The main STEC reservoir ... -
Efficacy of prepartum vaccination against neonatal calf diarrhea in Nelore dams as a prevention measure
(BioMed Central, 2022-08)Background: Neonatal calf diarrhea (NCD) is the leading cause of calf morbidity and mortality in beef cattle. Cow’s vaccination in last stage of pregnancy is one of the most important measures to mitigate the risk of NCD ...