不同日粮对草原红牛肥育效果的研究

试验将18头草原红牛分成3组,分别饲喂不同日粮进行肥育,第1组饲喂大豆粕型日粮,第2组饲喂尿素型日粮,第3组饲喂玉米酒糟型日粮,饲喂肥育80d后进行屠宰。试验结果表明,1、2、3组试验牛的日增重分别为1114g、1117g、1496g;屠宰率和净肉率分别为56.12%、57.88%、54.80%和45.83%、47.76%、45.33%。牛肉蛋白质含量依次为24.46%、21.66%和17.06%;牛肉脂肪含量依次为20.84%、22.65%和25.47%。经济效益以第2组最高,其次是第3组,第1组最低。

Study on Effects of Different Diets on Fattening of Red Cattle

red cattle, divided randomly into three groups, were fed with different diets in this 80 days long experiment. Cattle in the first group were fed with soybean refuse diet, the second group urea diet and the third group distillery refuse diet. Cattle were slaughtered at the end of feeding experiment. Results showed that the daily weight gain was 1 114 g, 1 117 g and 1 496 g respectively. The dressing percentages were 56.12%, 45.83% and 57.88%. The meat percentages were 47.76%, 54.80% and 45.33%. Percentages of protein were 24.46%, 21.66%, 17.06% and percentages of fat were 20.84%, 22.65% and 25.47%. Economic effect of the second group was the highest, the first group the lowest, calculated according to the current price of all feeds and fresh weight.