Temas
Mostrando ítems 1-10 de 10
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Alimentación de la vaca post parto
(2014-12)La nutrición de la vaca de cría es uno de los principales factores que determina el éxito de nuestro sistema agropecuario, ya que de ella dependerá el porcentaje de preñez, el desarrollo adecuado dela recría y la sanidad ... -
Criterios de selección por fertilidad de la hembra en bovinos para carne
(Universidad Nacional de Mar del Plata , Facultad de Ciencias Agrarias, 2017-06)El objetivo de este estudio fue identificar criterios de selección para mejorar la aptitud reproductiva de la hembra bovina. Para ello se realizaron estudios de pubertad en vaquillonas, y productividad media anual en vacas. ... -
Delayed-type hypersensitivity skin test against Neospora caninum in heifers with undetectable specific antibodies
(Elsevier, 2020-07-19)Delayed-type hypersensitivity (DTH) has been used in human and veterinary medicine as a skin testing for evaluating in vivocell-mediated immune responses (CMIR). Whereas CMIR is a key process to control intracellular ... -
Detection of recombinant human lactoferrin and lysozyme produced in a bitransgenic cow
(2017-03)Lactoferrin and lysozyme are 2 glycoproteins with great antimicrobial activity, being part of the nonspecific defensive system of human milk, though their use in commercial products is difficult because human milk is ... -
Effect of protein restriction of Angus cows during late gestation: Subsequent reproductive performance and milk yield
(2018-06)The effect of level of CP fed during late gestation on reproductive performance and milk production was studied in multiparous cows. Sixty-eight pregnant Angus cows were used. At 121 d prepartum, cows were blocked by BW ... -
Hipomagnesemia en vacas de cría en un campo de la zona del caldenal
(Facultad de Ciencias Veterinarias, Universidad Nacional de la Pampa, 2011)El objetivo de este trabajo fue estudiar los niveles de magnesio (Mg) sérico en un rodeo de cría de un establecimiento de la zona del caldenal pampeano, y las concentraciones en forrajes y agua de bebida de minerales ... -
Innate and humoral immune parameters at delivery in colostrum and calves from heifers experimentally infected with Neospora caninum
(Elsevier, 2021-02-02)Neospora caninum is a leading cause of abortion in cattle worldwide. The study of the immune response against N. caninum is critical to understand its epidemiology, pathogenesis, diagnosis and, ultimately, in preventing ... -
Pathogenicity of Nc-Bahia and Nc-1 strains of Neospora caninum in experimentally infected cows and buffaloes in early pregnancy
(Springer, 2014-04)Neospora caninum is a protozoan parasite known as an important cause of bovine abortion worldwide. Little is currently known about how different strains of N. caninum vary in their pathogenicity. In this study, we compared ... -
The degree of maternal nutrient restriction during late gestation influences the growth and endocrine profiles of offspring from beef cows
(CSIRO, 2021)Context: Cow–calf operations in Argentina are managed under extensive grazing condition and the quality of forages is often poor during the second half of gestation. The severity of nutrient restriction in bovine gestation, ... -
Vacas abortadas
(Ediciones INTA, 2023-12)La identificación de vientres que perdieron la gestación es dificultosa en las condiciones de los sistemas de producción extensiva. Frecuentemente, estos vientres suelen identificarse una vez que terminan de parir la mayoría ...