FR 04. Urea concentration in milk and reproduction in dairy cows under grazing conditions

  • A. Charmandarian Universidad Nacional de Rosario, Zavalla, Argentina
  • M. L. Gomez Universidad Nacional de Rosario, Zavalla, Argentina
  • R. Figallo Universidad Nacional de Rosario, Zavalla, Argentina
  • P. R. Marini INTA, Rafaela, Argentina
  • A. R. Castillo Universidad Nacional de Rosario, Zavalla, Argentina

Abstract

The objective of this study was to relate urea concentration in milk and reproduction in dairy cows under grazing conditions. We worked with 87 Holstein cows, which belonged to five different farms. Urea has been found in a milk sample taken from each cow, after 30, 60 and 90 days during lactation. We have measured the following reproduction parameters: IPPC, IPPS, IPC and NS. A considerable difference has been found among the five farms, IPPC and NS (P<.05) but we have not found a considerable difference in the other reproduction rates (P<.05).

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Published
2005-10-03
How to Cite
Charmandarian, A., M. L. Gomez, R. Figallo, P. R. Marini, and A. R. Castillo. 2005. “FR 04. Urea Concentration in Milk and Reproduction in Dairy Cows under Grazing Conditions”. Latin American Archives of Animal Production 5 (3). https://ojs.alpa.uy/index.php/ojs_files/article/view/177.