饲用型甜高粱秸秆青贮与玉米秸秆青贮喂羊对比试验

Comparative Test between Silage of Hybrid Sweet Sorghum Stalks and Corn Stalks in Sheep

利用饲用型甜高粱秸秆青贮与玉米秸秆青贮喂羊对比试验,通过日采食量、日增重的测定对比,进一步探讨了饲用型甜高粱和玉米秸秆青贮饲料对羊生产性能的影响。结果表明:在饲养管理和基础日粮相同的前提下,日采食量Ⅰ组和Ⅱ组分别为1.73kg、1.44kg,Ⅰ组较Ⅱ组相对提高20.14%。日增重Ⅰ组和Ⅱ组分别为145.11g、103.33g,比Ⅱ组相对提高40.43%,每增重1kg体重,精饲料Ⅰ组比Ⅱ组降低消耗29.92%,粗饲料Ⅰ组比Ⅱ组降低消耗18.77%。因此,青贮饲用型甜高粱秸秆育肥肉羊,增重快、饲料转化利用率高、育肥效果明显。

Based on comparative test between hybrid sweet sorghum stalks silage and corn stalks silage in sheep, we deter- mined daily feed intake and daily gain to study the effects of sheep＇s performance. The results showed that under the same level of feeding management and basal diet, the daily feed intake and daily gain were 1.73 kg, 1.44 kg, 145.11 g and 103.33 g, compared with H group, increasing by 20.14% and 40. 43% respectively. The concentrate and roughage intake was decreased 29.92%, 18.77% compared with II group respectively. So, there had obvious effect on fattening sheep using hybrid sweet sor- ghum stalks silage.