Biological efficiency criteria in dairy cows

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

• Autor principal: Vargas Burgos, Julio César (author)
• Altres autors: Tarquino, Robalino (author), Quinteros Pozo, Orlando Roberto (author), Frana, Emanuel (author), Quevedo Tumailli, Viviana Fernanda (author), Barbona, Ivana (author), García López, Roberto (author), Marini, Pablo (author), Echeverría Guevara, Mónica Paulina (author)
• Format: article
• Idioma: spa
• Publicat: 2014
• Matèries: Índice de leche; producción lechera; indicadores productivos; eficiencia; sistemas a pastoreo; Milk index; milk production; productive indicators; efficiency; grazing systems
• Accés en línia: https://revistas.uea.edu.ec/index.php/racyt/article/view/32