diferentes ofertas de forragem e a produção de leite em vacas mestiças holandês x gir different herbage allowances and milk yield in crossbred holstein x gir
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2012
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Abstract
Objetivou-se avaliar o efeito de diferentes ofertas de forragem em pastagem de estrela africana (Cynodon nlemfuensis Vanderyst var. nlemfuensis), sobre a taxa de desaparecimento de forragem (TDF) e a produção de leite de vacas mestiças Holandês x Gir. Trinta animais foram submetidos a três ofertas de forragem (OF) distintas, sendo 10,0 12,5 e 15,0% do peso corporal. Houve influência da OF sobre a TDF (P<0,001). Para cada unidade de acréscimo da OF, a TDF aumentou 140,0kg ha-1 dia-1. Houve efeito da relação folha:colmo sobre a produção de leite (P<0,05). O aumento da oferta não refletiu em incremento da produção de leite em função do manejo empregado para obtenção das ofertas e estádio de crescimento das plantas.
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 (P<0.001). 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 (P<0.05). The increasing in supplying herbage allowances did not resulted in increased milk yield because the management for herbage allowance and herbage growth.
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 (P<0.001). 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 (P<0.05). The increasing in supplying herbage allowances did not resulted in increased milk yield because the management for herbage allowance and herbage growth.
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batistel2012cinciadiferentes
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| Authors | ;Fernanda Batistel;Jonas de Souza;Elvis Ticiani;Michel Baldin;Ricardo Dresch;Diego Fernandes;Dimas Estrasulas de Oliveira |
| Journal | Trials |
| Year | 2012 |
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