Data/hora: 07/06/2024 01:24:15

Provedor de dados: 	Revista Brasileira de Zootecnia	
País: 	Brazil	
Título: 	Feeding behaviors of feedlot bulls fed concentrate levels and babassu mesocarp meal	
Autores: 	Cruz,Rossini Sôffa da; Alexandrino,Emerson; Missio,Regis Luis; Neiva,José Neuman Miranda; Restle,João; Melo,Jonahtan Chaves; Sousa Júnior,Antonio de; Resende,José Messias de.	
Data: 	2012-07-01	
Ano: 	2012	
Palavras-chave: 	Biofuels; Feed efficiency; Feeding time; Idle; Rumination.	
Resumo: 	The objective of the present study was to evaluate the feeding behavior of feedlot Nellore bulls fed two levels of concentrate (650 and 710 g/kg dry matter) with or without the inclusion of 350 g babassu mesocarp meal/kg dry matter in the concentrate. Twenty-eight animals at 18 months of initial age and 356.66±19.25 kg initial body weight were used. A completely randomized design was used with treatments in a 2 × 2 factorial arrangement. Increase in concentrate level from 650 to 710 g/kg dry matter did not change the feeding time, of 194.41 and 189.64 minutes/day, respectively. The inclusion of 350 g babassu mesocarp meal/kg dry matter in the concentrate increased the feeding time from 173.92 to 210.12 minutes/day, ensuring similar energy intake in relation to the diets without this byproduct. Rumination time was not changed by increasing the concentrate level in diets with 350 g babassu mesocarp meal/kg dry matter in the concentrate, with average values of 420.48 and 398.09 minutes/day for the levels of 650 and 710 g concentrate/kg dry matter, respectively. However, in diets without babassu mesocarp meal, the rumination time was reduced by the concentrate level, with average values of 452.14 and 409.76 minutes/day for 650 and 710 g of concentrate/kg dry matter, respectively. Time spent on other activities increased from 810.23 to 860.00 minutes/day with increase in the concentrate level, which was not changed in the diets containing babassu mesocarp meal. The inclusion of babassu mesocarp meal in the diet altered the feeding behavior of feedlot cattle, due to the need to increase the feeding time to maintain the energy intake.	
Tipo: 	Info:eu-repo/semantics/article	
Idioma: 	Inglês	
Identificador: 	http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982012000700024	
Editor: 	Sociedade Brasileira de Zootecnia	
Relação: 	10.1590/S1516-35982012000700024	
Formato: 	text/html	
Fonte: 	Revista Brasileira de Zootecnia  v.41 n.7 2012	
Fonte: 	info:eu-repo/semantics/openAccess