01734naa a2200277 a 450000100080000000500110000800800410001902400430006010000220010324501630012526000090028852008600029765000140115765000110117165300200118265300190120265300260122170000270124770000190127470000160129370000200130970000200132970000190134970000240136877300640139220177822022-08-10       2015    bl uuuu     u00u1 u    #d7 ahttp://dx.doi.org/10.1071/AN147422DOI1 aFONSECA, M. P. da  aIntake, apparent digestibility, and methane emission in bulls receiving a feed supplement of monensin, virginiamycin, or a combination.h[electronic resource]  c2015  aThe 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 a complete 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 &gt 0.05) and the apparent digestibility coefficients (P &gt 0.05) were not affected by the supplementation with monensin, virginiamycin, or both. The combination of the supplements did affect methane emission (P &lt 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.  aadditives  acattle  aFeed supplement  aGreenhouse gas  aRespirometric chamber1 aBORGES, A. L. da C. C.1 aSILVA, R. R. e1 aLAGE, H. F.1 aFERREIRA, A. L.1 aLOPES, F. C. F.1 aPANCOTI, C. G.1 aRODRIGUES, J. A. S.  tAnimal Production Sciencegv. 56, n. 7, p. 1041-1045, 2015.