Supplementation strategies for grazing beef cattle during the rainy-dry transition period
DOI:
https://doi.org/10.5433/1679-0359.2017v38n2p895Palabras clave:
Digestibility, Infrequent supplementation, Intake, Performance, Self-feed supplementation.Resumen
An experiment was carried out to investigate the effects of supplementation strategies on intake, digestibility, and performance of Nellore cattle on pasture (Urochloa decumbens) during the rainy-dry transition period. The evaluated strategies were mineral supplementation (MS), self-feed supplementation (SF), and infrequent concentrate supplementation. Supplementation frequencies were three times per week (Mondays, Wednesdays, and Fridays - 3tw) and daily (7tw). Animals receiving concentrate supplementation had higher pasture DM and TDN intakes than those fed MS. There was no difference (P > 0.10) between concentrate supplementation strategies. Average pasture DM intake was 7.89, 8.09, and 8.10 kg day?1 for SF, 3tw, and 7tw, respectively. No effects were found (P > 0.10) between SF and infrequent supplementation, or for the supplementation frequencies tested. The lowest average daily gain (ADG) (P < 0.10) was found for animals fed MS, and there was no difference between concentrate supplementation strategies for this variable. Average daily gains for MS, SC, 3tw, and 7tw were 661.4, 812.7, 811.5 and 819.2 g/animal, respectively. During the rainy-dry transition period, grazing beef cattle receiving concentrate supplementation have higher pasture and TDN intakes and better performance than animals fed mineral supplement only. Self-feed supplementation or supplementation provided three days per week do not compromise pasture and TDN intakes, nutrient digestibility, or performance of grazing beef cattle.Métricas
Descargas
Publicado
Cómo citar
Número
Sección
Licencia
Derechos de autor 2017 Semina: Ciências Agrárias
Esta obra está bajo una licencia internacional Creative Commons Atribución-NoComercial 4.0.
Os Direitos Autorais para artigos publicados são de direito da revista. Em virtude da aparecerem nesta revista de acesso público, os artigos são de uso gratuito, com atribuições próprias, em aplicações educacionais e não-comerciais.
A revista se reserva o direito de efetuar, nos originais, alterações de ordem normativa, ortográfica e gramatical, com vistas a manter o padrão culto da língua e a credibilidade do veículo. Respeitará, no entanto, o estilo de escrever dos autores.
Alterações, correções ou sugestões de ordem conceitual serão encaminhadas aos autores, quando necessário. Nesses casos, os artigos, depois de adequados, deverão ser submetidos a nova apreciação.
As opiniões emitidas pelos autores dos artigos são de sua exclusiva responsabilidade.