Reaction of some Rumen Micro flora to different supplementary feeds in Rumen fistulated Animals.
2008
Tadessa Daba(Researcher)
Ruminant animals lack to break down fibrous feeds byt they harbor microorganisms capable of degrading their feeds.Rument microbes are affected by feed substrates.The purpose of this study was to evaluate rument mirobial chages as the function of varying supplementary deeds.Two protein supplements (cottonseed cake and tree lucerne) and two energy supplements (wheat bran and molasses) were offered to rument fistulated oxen of two groups varying in age.The supplements vary mainly in protein and fiber contents. Switch over design was used in the experiment and the oxen were switched to another supplement after one week to avoid the carryover effect. Mirobial populations, correlations with feed nutrient composition and enzyme assays in each case were studied and JMP 5.1 computer software was used for the analysis.Bothe the bacterial and fungal populations were the highest in oxen supplemented with cottonseed cake (10.7 x1010 bacteria and 10.8 x 10.5 fungi) in both young and older oxen (7.4 x 10 bacteria and 7 x 10.5 fungi) respectively.The total microbial popuoations were higher in younger groups supplemented with similar supplement than the older groups of oxen and the least microbial count was observed in thaose supplemented with tree lucerne (Chamaecytisus palmensis) probably because of its anti nutritional factor.The enzyme activities were also compared showed significnat variations and linear relation with the nutrient composions of the feeds.A supplement rich in both fiber and protein (cottonseed cake ) supported dynamic rumen microbial population and is very important for the production.
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