Comparação Da Composição Genética Girolando Na Produção De Leite A Pasto

Abstract

The objective of the present study was to compare the accumulated milk production up to 305 days (P305), mean fat content (TGM) and mean protein (TPM) of crossbred females of the genetic compositions (CG) 1/2 HOL, 3/4 HOL and 5/8 HOL in a grass-fed milk production system. Data were collected from first and second lactation animals at Fazenda São Caetano. The bi-crossbred animals 5/8 HOL performed better than 3/4 HOL and F1. The 3/4 were higher than 1/2 HOL for P305. The production of solids had no influence on GC.