Use este identificador para citar ou linkar para este item: https://locus.ufv.br//handle/123456789/23121
Tipo: Artigo
Título: Effect of feeding strategies on weaning weight and milk production of Holstein × Zebu calves in dual purpose milk production systems
Autor(es): Menezes, Gustavo Chamon de Castro de
Valadares Filho, Sebastião de campos
Detmann, Edenio
Zanetti, Diego
Mariz, Lays Débora Silva
Duarte, Marcio de Souza de
Menezes, Arismar de Castro
Villalobos, Nicolas Lopez
Ruas, José Reinaldo Mendes
Morris, Stephen
Abstract: The objective of this study was to evaluate the effect of five feeding strategies on calf weaning weight, and cow milk production and composition in Brazilian Holstein × Zebu cows. A total of 60 cows and their calves were allocated to each of five treatments. Cows in treatments 1, 2 and 3 were milked for 270 days and cows in treatments 4 and 5 were milked for 180 days. Calves in treatment 1 (CON) were not supplemented with concentrate whereas calves from treatment 2 (CLPN) received 1 kg of concentrate daily from 90 to 270 days of age and calves from treatment 3 received 1 kg of concentrated from 180 to 270 days of age. Calves in treatment 4 (CCPS) were supplemented with 1 kg of concentrate from 90 to 180 days of age and calves in treatment 5 (CLPS) were supplemented with 1 kg of concentrate from 90 to 270 days of age. Calves from the CLPS treatment had greater milk and protein intakes (P < 0.05) and greater growth rate than calves from the other treatments. Our results indicate that the traditional system of feeding calves with no concentrate results in a weight gain of 600 g/day. The CLPS treatment produced calves with the highest live weight and growth rate. The nutritional strategy with restricted supply of milk for the calves with concomitantly short-term concentrate supplementation does not improve performance of calves but did increase feed costs.
Palavras-chave: Concentrate supplement
Crossbred cattle
Nutrient intake
Performance
Short-term lactation
Editor: Tropical Animal Health and Production
Tipo de Acesso: Springer Netherlands
URI: https://doi.org/10.1007/s11250-015-0832-5
http://www.locus.ufv.br/handle/123456789/23121
Data do documento: Ago-2015
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