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Change in metabolite levels and liveweight of grazing cattle when supplemented with Leucaena leucocephala or urea-molasses

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Foster, A.H. and Blight, G.W. (1987) Change in metabolite levels and liveweight of grazing cattle when supplemented with Leucaena leucocephala or urea-molasses. Queensland Journal of Agricultural and Animal Sciences, 44 (1). pp. 59-68.

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Abstract

Liveweight change and the concentration of a number of metabolites in rumen fluid, blood and faeces weremonitored in cattle from weaning until they were 33 months old, grazing spear grass alone and when supplemented with either Leucaena /eucocephala, urea-molasses, or both. Levels of metabolites in unsupplemented cattle in winter reflected the poor protein content of spear grass. A low molar percentage of higher volatile fatty acids in rumen fluid (1.09 and 1. 72% for weaners and two year- old cattle, respectively) indicated a shortage of amino acids in the feed; and the low ammonia nitrogen concentrations (7 and 18 mgfL, respectively) would have limited bacterial protein production.

Item Type:Article
Corporate Creators:Department of Agriculture and Fisheries, Queensland
Keywords:INCOMPLETE; RECORD SOURCE: BEEF CATTLE HUSBANDRY BRANCH
Subjects:Animal culture > Cattle
Animal culture > Feeds and feeding. Animal nutrition
Live Archive:09 Apr 2024 06:56
Last Modified:09 Apr 2024 06:56

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