Immune status of dairy calves in the Northern Plains of Costa Rica. Year I.


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Bibliographic Details
Authors: Sánchez-Salas, Jeffry, Elizondo-Salazar, Jorge Alberto, Arroyo-Quesada, Geovanny
Format: artículo original
Status:Versión publicada
Publication Date:2012
Description:The objective of this study was to characterize the immune status of dairy calves in the Northern Plains of Costa Rica. For the purpose of this study, failure of passive immunity was considered when TSP concentration was less than 5.5 g/dl. TSP concentration ranged from 2.8 to 11.0, with an overall mean of 6.2 g/dl. Of all the animals evaluated, 31.8% had failure of passive transfer. When considering sex of the calves, 31.4% of females and 25.3% of males failed to obtain adequate levels of immunity and concentration of TSP showed significant differences (6.2 vs. 5.9 g/dl, respectively). Calves born to Holstein x Jersey crosses had significant higher TSP concentrations than calves born to Holstein dams. When considering calving of the d
Country:Portal de Revistas UCR
Institution:Universidad de Costa Rica
Repositorio:Portal de Revistas UCR
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Access Level:acceso abierto
Keyword:proteína sérica total
inmunidad pasiva
ganado de leche.