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Morphological and structural characteristics of Urochloa decumbens Stapf. deferred pasture grazed by heifers under two periods of protein-energy supplementation
Silva, Pedro Henrique Ferreira da; Carvalho, Carlos Augusto Brandão de; Malafaia, Pedro; Garcia, Felipe Zumkeller; Barbero, Rondineli Pavezzi; Ferreira, Robson Leandro.
Afiliação
  • Silva, Pedro Henrique Ferreira da; Universidade Federal Rural do Rio de Janeiro. Rio de Janeiro. BR
  • Carvalho, Carlos Augusto Brandão de; Universidade Federal Rural do Rio de Janeiro. Rio de Janeiro. BR
  • Malafaia, Pedro; Universidade Federal Rural do Rio de Janeiro. Rio de Janeiro. BR
  • Garcia, Felipe Zumkeller; Universidade Federal Rural do Rio de Janeiro. Rio de Janeiro. BR
  • Barbero, Rondineli Pavezzi; Universidade Federal Rural do Rio de Janeiro. Rio de Janeiro. BR
  • Ferreira, Robson Leandro; Universidade Federal Rural do Rio de Janeiro. Rio de Janeiro. BR
Acta sci., Anim. sci ; 41: e44472, 2019. tab, graf
Article em En | VETINDEX | ID: biblio-1459871
Biblioteca responsável: BR68.1
Localização: BR68.1
ABSTRACT
The aim of this study was to evaluate the morphological and structural characteristics of deferred Urochloa decumbens Stapf. ‘Basilisk’ grazed by Nellore heifers under two periods of protein and energy supplementation (PES). The experiment was carried out from Jun 21 to Nov 15, 2016, under a completely randomized design and two PES periods (55 [P55] and 147 [P147] days). Forage mass (FM), leaf blade dry mass (LBDM), stem dry mass (SDM), dead material dry mass (DMDM), canopy height (CH), and forage bulk density (FBD) were evaluated. Data were analyzed by the SAS® PROC MIXED procedure and treatment means were compared with the Student's t test (p < 0.05). LBDM was higher for P147 heifers after 21, 84, and 126 days of grazing, similar to those observed after 63 days, and was higher for P55 heifers at 42, 105, and 147 days of grazing. SDM was lower for P147 heifers after 21, 42, 105, and 126 days, and similar in the other grazing periods. Protein and energy supplementation for heifers over 147 days resulted in a lower stem mass of U. decumbens Stapf. ‘Basilisk’ deferred pastures.
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Texto completo: 1 Base de dados: VETINDEX Assunto principal: Bovinos / Pastagens / Poaceae Limite: Animals Idioma: En Revista: Acta sci., Anim. sci Ano de publicação: 2019 Tipo de documento: Article
Texto completo
Adicionar na Minha BVS
Imprimir
XML
Buscar no Google

Texto completo: 1 Base de dados: VETINDEX Assunto principal: Bovinos / Pastagens / Poaceae Limite: Animals Idioma: En Revista: Acta sci., Anim. sci Ano de publicação: 2019 Tipo de documento: Article