饲喂不同硬度全价颗粒饲料对绵羊生长及屠宰性能的影响研究

The study on the effect of growth and slaughter performance of sheep fed with different hardness complete pellet feed

研究通过生产相同配方、不同硬度的全价颗粒饲料,并利用一个周期的育肥对比试验,研究不同硬度全价颗粒饲料对绵羊生长及屠宰性能的影响,从而选定最适硬度的全价颗粒饲料。结果显示:试验2组平均日增重最高,达到296.00 g/d,显著高于试验1组和试验3组(P<0.05),试验1组与试验3组之间差异不显著(P>0.05);试验各组间屠宰率差异不显著(P>0.05),试验2组的屠宰率最高,为52.00%(P>0.05);试验2组净收益最高。结果表明,试验2组硬度为本研究最适硬度,试验2组硬度1.428 kg·f的全价颗粒饲料的经济效益最优。

Study was to investigate the effect of different hardness of complete pellet feed on the growth and slaughter performance of sheep and select the most suitable hardness.Through producing the complete pellet feed with the same formula and different hardness in the fattening test for a cycle.The results showed that the average daily body weight gain of test group 2 is the highest,296 g/d,it's significantly higher than test group 1 and test group 3(P<0.05),but there is no significant difference between test group 1 and test group 3.Dressing rate is no significant difference among the three groups,but dressing rate of test group 2 is the highest,52.00%(P>0.05).Net income of test group 2 is the highest,10.90 Yuan/kg.The experiment indicated that hardness of the test group 2 is the most suitable hardness,and the economic benefits of the test group 2 is the best in the study.