Effects Of Cellulose-preparation Enzyme On Treatment Of Crude Feed In Ruminant

Application of cellulose-preparation enzyme in feedstuff is a very important method to explore present feedstuff resources. Supplementation of cellulose-preparation enzyme in feedstuff can degrade the cell-wall of the plant - feedstuff, improve the nutrient release of cell contents and the utilization of the feedstuff, reduce nutrient excretion of animal and environmental pollution.In this research, it showed influence of growth-productivity and digestion- metabolism about supplementation of cellulose-preparation enzyme to the ruminant, and explore the degradation result of cellulose-preparation enzyme to the different crude-feed by means of the experiment which carrying on a vitro-predigest-analysis, feed-trial and digesting-trial. The result is following:1. Vitro-predigest experiment which supply cellulose-preparation enzyme of to wheat-straw and corn-straw showed both of them have a significantly vitro-predigest result in high-water-content(40%) and high-temperature(45℃)condition in 30 minutes.2. Supplemented 0.1%cellulose-preparation enzyme to the wheat-straw and then feed sheep, there were no significant difference in feces-nitrogen, urine -nitrogen, digest-nitrogen, deposition-nitrogen between treated-group and control (P>0.05), there are significant difference in the apparent-digestibility (P<0.05), can improve apparent digestibility of the DM,NDF,ADF and CP of the daily-food of the sheep significantly, decrease nutrient-excretion in the sheep-muck significantly, and increase weight per day , reduce feedstuff-weight-ratio, enhance economy benefit.3. Supplemented 0.1%cellulose-preparation enzyme to the wheat-straw and cron-straw and then feed cow respectively, the result indicated distinct influence of growth-productivity. There were no significant difference in growth-productivity between treated-group and control, and treated-group which feed with wheat-straw supplemented cellulose-preparation enzyme compared with the control, the milk-yield have been improved 48% significantly (P<0.01), average milk-fat percentage was improved 5.62% non-significantly(P>0.05); Treated-group which feed with corn-straw supplemented cellulose cellulose-preparation enzyme compared with the control, the milk-yield and average milk-fat percentage have been improved 63.03% and 18.13% respectively. Supplemented 0.1%cellulose-preparation enzyme in the two straw, they were all improved milk-yield and the milk-fat percentage differently. In the meantime, there are obvious increase to the digestibility of fiber material, decrease excretion of the nutriment in cow-muck. There were no difference of intake between treated-group and control, but excretion of NDF and ADF and apparent-digestibility were significant (P<0.01), the excretion of DM and apparent digestibility were significant (P<0.05), the excretion of CP and apparent digestibility were non-significant(P>0.05).