Criterios de eficiencia biológica en vacas lecheras

Julio César Vargas Burgos; Robalino Tarquino; Orlando Roberto Quinteros Pozo; Emanuel Frana; Viviana Fernanda Quevedo Tumailli; Ivana Barbona; Roberto García López; Pablo Marini; Mónica Paulina Echeverría Guevara

doi:10.59410/RACYT-v03n01ep01-0032

Authors

Julio César Vargas Burgos Universidad Estatal Amazónica https://orcid.org/0000-0003-2789-8730
Robalino Tarquino Universidad Estatal Amazónica
Roberto Quinteros Universidad Estatal Amazónica https://orcid.org/0000-0002-3808-257X
Emanuel Frana National University of Rosario
Viviana Quevedo Universidad Estatal Amazónica https://orcid.org/0000-0001-8278-3632
Ivana Barbona University of Havana
Roberto García López University of Havana https://orcid.org/0000-0002-6550-1178
Pablo Marini National University of Rosario
Paulina Echeverria Universidad Estatal Amazónica https://orcid.org/0000-0003-1223-8932

DOI:

https://doi.org/10.59410/RACYT-v03n01ep01-0032

Keywords:

Milk index, milk production, productive indicators, efficiency, grazing systems

Abstract

The aim of this study was to evaluate the milk index as an indicator of productive efficiency for dairy cows on pasture systems compared with the usual indicator based solely on accumulated individual production. Age, total milk production and milk index from 1o5 dairy cows classified by the Holstein. Data were obtained from a commercial herd kept in the Province of Santa Fe Argentina, during the period 2000-2012. The evidence confirm previous results showing that greater individual production at the end of the productive life of the cow (LT) does not always guarantee a better result in terms of productive efficiency. The milk index as an indicator of productive efficiency allows a better assessment of the performance of dairy cows kept on pasture systems. It is conclude that this indicator has intrinsic advantages as it quantifies the level of adjustment between the genetic potential of the herd for milk production and the particular characteristics of the production system in which that potential is expressed

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