添加沼液对育肥猪增重效果的影响

Effect of Biogas Slurry on Weight-gain of Fattening Pigs

选择体重在40kg左右杂交育肥猪28头,随机分成四组,每组7头,对照组饲喂基础日粮,试验Ⅰ、Ⅱ、Ⅲ组在基础日粮中分别按日饲喂量添加40%、60%和80%的沼液。试验结果表明:试验Ⅰ、Ⅱ、Ⅲ组育肥猪的头均日增重分别比对照组提高了136.46g(15.52%)、94.88g(10.79%)和72.50g(8.27%),且差异显著(P<0.05),以试验Ⅰ组增重最快。对照组的料重比分别比试验Ⅰ、Ⅱ、Ⅲ组高0.03(1.06%)、0.02(0.71%)、0.05(1.77%),以试验Ⅲ组料重比最低,但差异不显著(P>0.05)。经综合评定以试验Ⅰ组增重最快,经济效益最好。

28 fattening pigs at the weight of about 40 kg were selected randomly and divided into four groups. Control group were fed with basal diet, while experimental group Ⅰ , Ⅱ , Ⅲ were fed with basal diet added 40% , 60% , 80% biogas slurry respectively. Results showed that the average daily gain of experimental group Ⅰ , Ⅱ, Ⅲ were 136.46g（ 15.52% ） ,94.88g（ 10.79% ） and 72.50g（ 8.27% ） higher than that of control group, and the differences were significant （ P 〈 0.05 ）. Experimental group I were the fastest in weight. The feed - weight ratio of control group was 0.03 （ 1.06% ）, 0.02 （0.71%） and 0.05 （ 1.77% ） higher than that of experimental group Ⅰ , Ⅱ and Ⅲ, and the differences were not significant （ P 〉 0.05 ）. According to the comprehensive evaluation, experimental group Ⅰ were the best in the weight- gain and economic profit.