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Strategies of rotational stocking management on weight gain and productivity of heifers grazing on marandu palisade grass / Estratégia de manejo em pastejo rotacionado no ganho de peso e produtividade de novilhas pastejando capim marandu
LIMA, M. L. P; VERCESI FILHO, A. E; RIBEIRO, E. G; GIACOMINI, A; PAZ, C. C. P.; SILVEIRA, J. M. C; ROMA JÚNIOR, L. C.
Afiliação
  • LIMA, M. L. P; Instituto de Zootecnia. Centro APTA Bovinos de Corte. Sertãozinho, SP. BR
  • VERCESI FILHO, A. E; Instituto de Zootecnia. Nova Odessa, SP. BR
  • RIBEIRO, E. G; Instituto de Zootecnia. Nova Odessa, SP. BR
  • GIACOMINI, A; Instituto de Zootecnia. Nova Odessa, SP. BR
  • PAZ, C. C. P.; Instituto de Zootecnia. Centro APTA Bovinos de Corte. Sertãozinho, SP. BR
  • SILVEIRA, J. M. C; Agência Paulista de Tecnologia dos Agronegócios. Polo Regional Nordeste Paulista. Mococa, SP. BR
  • ROMA JÚNIOR, L. C; Agência Paulista de Tecnologia dos Agronegócios. Polo Regional Centro Leste. Ribeirão Preto, SP. BR
Bol. ind. anim. (Impr.) ; 73(3): 220-227, 2016.
Article em En | VETINDEX | ID: biblio-1466860
Biblioteca responsável: BR68.1
Localização: BRI681
RESUMO
Pasture management can affect plant growth and interfere with the performance of the animals or the productivity of the production system. Marandu palisade grass swards subjected to year-round grazing by crossbred heifers were evaluated. Three stocking systems were tested 1) a grazing cycle of 28 days (T28d); 2) when the sward reached a pre-grazing height of 30 cm (T0.3m), and 3) when the sward reached a pre-grazing height of 30 cm under irrigation (T-irrig0.3m). Heifers from treatments T28d and T0.3m were supplemented with dry matter at 1% of BW during winter. Statistical was a completely randomized block split-plot design. The light interception was higher (P<0.001) for T-irrig0.3m during winter. A lower leaf area index (P<0.001) was found for T28d, and T0.3m during winter and for T0.3m during autumn. There was an effect of stocking systems (P=0.0055), season (P<0.001) and interaction (P<0.0001) on weight gain (WG), stocking rate and productivity. The lowest WG was obtained in winter for the T-irrig0.3m treatment. The mean WG was 0.45, 0.49 and 0.43 kg/day for T28d, T0.3m and T-irrig0.3m, respectively. Lower productivity (P=0.0155) was observed for T28d when compared to T0.3m and T-irrig0.3m. The productivity rates were 662.2, 741.7 and 758.3 kg WG/ha, per season for T28d, T0.3m and T-irrig0.3m, respectively...
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Texto completo: 1 Base de dados: VETINDEX Assunto principal: Estações do Ano / Comportamento Animal / Aumento de Peso / Pastagens / Brachiaria Limite: Animals Idioma: En Revista: Bol. ind. anim. (Impr.) Ano de publicação: 2016 Tipo de documento: Article

Texto completo: 1 Base de dados: VETINDEX Assunto principal: Estações do Ano / Comportamento Animal / Aumento de Peso / Pastagens / Brachiaria Limite: Animals Idioma: En Revista: Bol. ind. anim. (Impr.) Ano de publicação: 2016 Tipo de documento: Article