Data/hora: 11/06/2024 02:31:58

Provedor de dados: 	96	
País: 	Brazil	
Título: 	Performance and methane emissions of Nellore steers grazing tropical pasture supplemented with lipid sources	
Autores: 	Carvalho,Isabela Pena Carvalho de; Fiorentini,Giovani; Berndt,Alexandre; Castagnino,Pablo de Souza; Messana,Juliana Duarte; Frighetto,Rosa Toyoko Shiraishi; Reis,Ricardo Andrade; Berchielli,Telma Teresinha.	
Data: 	2016-12-01	
Ano: 	2016	
Palavras-chave: 	Linseed oil; Palm oil; Protected fat; Supplementation; Whole soybeans.	
Resumo: 	ABSTRACT The objective of this study was to evaluate the effect of lipid sources on voluntary intake, digestibility, performance, and CH4 emission of Nellore steers grazing Brachiaria brizantha cv. Xaraés forage in the dry season. Forty-five Nellore steers with average weight of 442±34 kg were alloted into one of the five treatments: without additional fat; with palm oil; with linseed oil; with protected fat; and with whole soybeans. The supplements were provided daily and quantities were adjusted to 1% of body weight and diets were formulated in accordance with the Cornell Net Carbohydrate and Protein System. The experimental design was completely randomized with five treatments and two replications. There were no effects on dry matter, organic matter, and neutral detergent fiber intake with the inclusion of lipids in the diet. The neutral detergent fiber showed decreased digestibility in animals receiving linseed oil and palm oil treatments compared with animals receiving the diet without additional fat. The linseed oil treatment reduced CH4 emissions by 38% when expressed in mg/d/kg BW and tended to reduce the emission in g/d/kg BW0.75. Lipid sources did not affect the weight gain of the animals. The intake and performance of grazing Nellore steers supplemented at 1% body weight with lipid sources were not modified. However, fiber digestibility was reduced with palm or linseed oil addition. Linseed oil reduced enteric CH4 emissions. Linseed oil has the potential to reduce enteric CH4 emissions in continuous tropical grazing systems based on B. brizantha grass.	
Tipo: 	Info:eu-repo/semantics/article	
Idioma: 	Inglês	
Identificador: 	http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982016001200760	
Editor: 	Sociedade Brasileira de Zootecnia	
Relação: 	10.1590/s1806-92902016001200005	
Formato: 	text/html	
Fonte: 	Revista Brasileira de Zootecnia  v.45 n.12 2016	
Fonte: 	info:eu-repo/semantics/openAccess