Title:	Intake, apparent digestibility, and methane emission in bulls receiving a feed supplement of monensin, virginiamycin, or a combination.
Authors:	FONSECA, M. P. da BORGES, A. L. da C. C. SILVA, R. R. e LAGE, H. F. FERREIRA, A. L. LOPES, F. C. F. PANCOTI, C. G. RODRIGUES, J. A. S.
Affiliation:	Marcelina Pereira da Fonseca, UFMG; UFMG; UFMG; UFMG; UFMG; FERNANDO CESAR FERRAZ LOPES, CNPGL; UFMG; JOSE AVELINO SANTOS RODRIGUES, CNPMS.
Date Issued:	2015
Citation:	Animal Production Science, v. 56, n. 7, p. 1041-1045, 2015.
Description:	The aim of this study was to evaluate the effects of the feed supplements monensin, virginiamycin, or a combination of the two, on intake, digestibility, and methane emission in the male cattle breed F1 Holstein· Gir. We used acomplete randomised design with four treatments consisting of the control, monensin, virginiamycin, and a combination of the two. The basal diets were composed of sorghum silage with Tanzania grass and the concentrate in the 1 : 1 ratio. Nutrient intake (P>0.05) and the apparent digestibility coefficients (P>0.05) were not affected by the supplementation with monensin, virginiamycin, or both. The combination of the supplements did affect methane emission (P<0.05) when expressed in L/day, L/(kg DM), and L/(kg DM digestible). The lowest methane production was obtained with the combination of the supplements.
NAL Thesaurus:	additives cattle
Keywords:	Feed supplement Greenhouse gas Respirometric chamber
DOI:	http://dx.doi.org/10.1071/AN14742
Type of Material:	Artigo de periódico
Access:	openAccess
Appears in Collections:	Artigo em periódico indexado (CNPMS)