Evaluation of the metabolic profile of bulls in different phases of the reproductive cycle

Authors

  • Marcelo Brandi Vieira Universidade Federal de Pelotas, Pelotas, RS
  • Elizabeth Schwegler Universidade Federal de Pelotas, Pelotas, RS
  • Maikel Alan Goulart Universidade Federal de Pelotas, Pelotas, RS
  • Viviane Maciel da Silva Universidade Federal de Pelotas, Pelotas, RS
  • Jacques Leston Universidade Federal de Pelotas, Pelotas, RS
  • Vinícius Coitinho Tabeleão Universidade Federal de Pelotas, Pelotas, RS
  • José Acélio da Fontoura Júnior Universidade Federal do Pampa, Dom Pedrito, RS
  • Francisco Augusto Burkert Del Pino Universidade Federal de Pelotas, Pelotas, RS
  • Marcio Nunes Corrêa Universidade Federal de Pelotas, Pelotas, RS

DOI:

https://doi.org/10.11606/issn.1678-4456.bjvras.2010.26846

Keywords:

Bulls, Metabolic profile

Abstract

Bulls are an important category in cattle production systems, being responsible for a considerable part of genetic improvement in a herd. However, few studies about the metabolic conditions of this category have been done. The objective of this study was to evaluate the metabolic profile of bulls in three different phases of the reproductive cycle, that are, before, during and after the breeding season. This study was conducted with 23 bulls, in a farm in southern Rio Grande do Sul. The biochemical markers used for the evaluations were: glicose and cholesterol, to determine energetic profile; albumin and urea to determine protein profile and enzyme aspartate aminotransferase (AST) as an indicator of liver functionality. There was a difference (p < 0,05) in all metabolic markers evaluated during the different phases of the productive cycle, showing that there was a variation in food availability, which could lead to productive and reproductive losses. This could be improved by protein supplementation and pasture improvement.

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Published

2010-02-01

Issue

Vol. 47 No. 1 (2010)

Section

UNDEFINIED

License

The journal content is authorized under the Creative Commons  BY-NC-SA  license (summary of the license: https://creativecommons.org/licenses/by-nc-sa/4.0 | full text of the license: https://creativecommons.org/licenses/by-nc-sa/4.0/legalcode) 

How to Cite

1.
Vieira MB, Schwegler E, Goulart MA, da Silva VM, Leston J, Tabeleão VC, et al. Evaluation of the metabolic profile of bulls in different phases of the reproductive cycle. Braz. J. Vet. Res. Anim. Sci. [Internet]. 2010 Feb. 1 [cited 2025 Apr. 5];47(1):31-7. Available from: https://revistas.usp.br/bjvras/article/view/26846