期刊
ANIMAL FEED SCIENCE AND TECHNOLOGY
卷 179, 期 1-4, 页码 69-76出版社
ELSEVIER
DOI: 10.1016/j.anifeedsci.2012.12.001
关键词
Energy source; Microbial protein; Processed broiler litter; Ruminal parameters; Sheep
A 28-d experiment was performed to evaluate the influence of replacing dietary corn/barley with molasses at levels of 0 (MO), 50 (M50) and 100 (M100) g/kg dietary dry matter (DM), as energy sources, in the diets containing heat-processed broiler litter (HBL) (240 g/kg DM) in male Moghani sheep. Digestibility, microbial protein supply (MPS), ruminal parameters and blood metabolites were measured. The digestibility of DM and crude protein (CP) in experimental sheep linearly increased (L, P=0.01) as level of molasses enhanced in the diets. Addition of molasses to diet linearly increased MPS (L, P=0.01) compared to sheep fed the control diet. Ruminal pH and ammonia concentrations linearly declined (L, P<0.05) as level of molasses increased in the diet. There was no difference (P>0.05) in ruminal volatile fatty acid concentrations, except a linear increase in the molar proportion of butyrate (L, P=0.02) among the molasses supplemented groups. Blood urea-N linearly decreased (L, P=0.02) in sheep fed molasses compared to the control group. It can be concluded that replacing corn/barley with molasses in sheep diet improved the utilization of the diet containing HBL. (C) 2012 Elsevier B.V. All rights reserved.
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