Diferentes ofertas de forragem e a produção de leite em vacas mestiças holandês x Gir

Abstract

The objective of this study was to evaluate different herbage allowances in stargrass (Cynodon nlemfuensis Vanderyst var. nlemfuensis), on the herbage disappearance rate (HDR) and milk yield in crossbred Holstein x Gir cows. Thirty animals were assigned to three different herbage allowances (HA), ranging from 10.0, 12.5 and 15.0% BW. There was effect of HA on the HDR (P0.001). Increasing the HA in one unit had effect on the HDR increasing by 140.0kg ha-1 day-1. There was effect of leaf:stem ratio on milk yield (P0.05). The increasing in supplying herbage allowances did not resulted in increased milk yield because the management for herbage allowance and herbage growth.