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

Authors

  • Jeffry Sánchez-Salas Universidad de Costa Rica, Estación Experimental Alfredo Volio Mata
  • Jorge Alberto Elizondo-Salazar Universidad de Costa Rica, Estación Experimental Alfredo Volio Mata
  • Geovanny Arroyo-Quesada Cooperativa de Productores de Leche Dos Pinos R. L., Programa de Transferencia Tecnológica

DOI:

https://doi.org/10.15517/am.v23i2.6532

Keywords:

proteína sérica total, inmunoglobulinas, inmunidad pasiva, ganado de leche.

Abstract

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

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Author Biographies

Jeffry Sánchez-Salas, Universidad de Costa Rica, Estación Experimental Alfredo Volio Mata

Estación Experimental Alfredo Volio Mata, Facultad de Ciencias Agroalimentarias, Universidad de Costa Rica. Costa Rica.

Jorge Alberto Elizondo-Salazar, Universidad de Costa Rica, Estación Experimental Alfredo Volio Mata

Estación Experimental Alfredo Volio Mata, Facultad de Ciencias Agroalimentarias, Universidad de Costa Rica. Costa Rica.

Geovanny Arroyo-Quesada, Cooperativa de Productores de Leche Dos Pinos R. L., Programa de Transferencia Tecnológica

Programa de Transferencia Tecnológica de la Cooperativa de Productores de Leche Dos Pinos R. L. Costa Rica.

How to Cite

Sánchez-Salas, J., Elizondo-Salazar, J. A., & Arroyo-Quesada, G. (2012). Immune status of dairy calves in the Northern Plains of Costa Rica. Year I. Agronomía Mesoamericana, 23(2), 321–327. https://doi.org/10.15517/am.v23i2.6532

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