Effect of Monensin on Ciliate Protozoa in Rumen of Sheep Fed an Oaten Chaff Diet
نویسنده
چکیده
Field studies of grazing lambs without protozoa in the rumen indicated that live weight gains were 15% higher than in faunated lambs (Bird &nd Leng 1985). Poos et al. (1979) reported that monensin decreased protozoa1 populations in the rumen but Leng et al. (1984) found no effect of monensin on half life or growth rate of protozoa. However in previous studies (Habib, G. & Preston, T.R. 1984 unpublished) with cattle on molasses-based diets, monensin effectively reduced protozoa1 populations and, as Bergen and Bates (1984) concluded, the effect of monensin is variable, further studies were undertaken to study the effects of continuous or ad libitum feeding of high and medium levels of monensin, on protozoa1 numbers and their half life in the rumen of sheep.
منابع مشابه
In vitro methane emission and acetate:propionate ratio are decreased when artificial stimulation of the rumen wall is combined with increasing grain diets in sheep.
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تاریخ انتشار 1999