Study On Kinetics Of Starch Degradability Of Common Used Feed For Ruminants

The experiment was conducted to measure the dry matter degradability,starch degradability and rumen bypass starch rate of three varieties feedstuffs (cereal feed, tuber feed, legume feed ) for three liu-yang black goats fitted with rumen cannulas by nylon bags technique. The aim of this study was to know about Kinetics of Starch degradability rate of Common used-feed for Ruminants, to gain the basic data for rumen starch degradability rate and rumen bypass starch in Common used-feed and provid some technology parameters for concentration feed .The results showed that dry matter degradability and Starch degradability rates of cereal,tuber feed have much increase with the incubation time growing ,while legume feeds have different results.Barley had highest starch degradability rate,while millet showed the lowest ,they were 97.05%,36.43% respectively. The starch degradability rates of other cereal feeds were: wheat,96.28%,maize,55.37%,rice,45.23%, buckwheat ,44.10%, sorghum , 42.58% respectively. The difference among rice, sorghum and buckwheat was not significant (P>0.05), the difference between barley and wheat was not significant (P>0.05), and the difference among millet and else six feed was significant (p<0.05),and the same to rice. The starch degradability rates of tuber feed were jiaoou,59.01%, taro,56.10%, sweat potato,54.86, potato,37.99%, tapioca,25.31% respectively. The difference among sweat potato ,jiaoou and taro was not significant (P>0.05),while it was significant(p<0.05) among potato,tapioca. The starch degradability rates of legume feed were soy, 99.01%,black soyabean, 97.80%, pea,85.07%,bean, 53.64% respectively. The difference between black soyabean and soy was not significant (P>0.05), which among bean ,pea was significant(p<0.05).The sequence of the rumen bypass starch rates in cereal feeds were rice , 38.23%,maize,37.82%,millet,37.51%,sorghum,15.13%,barley,10.38% ,buckwheat,9.7 7% ,wheat ,9.28% respectively. The difference among rice, maize and millet was not significant (P>0.05),The difference among sorghum, barely, buckwheat and wheat was not significant (P>0.05). The sequence of the rumen bypass starch rates in tuber...