摘要
为了研究益生菌制剂替代抗生素对生长育肥猪生产性能的影响,选取45kg左右的PIC生长猪30头,随机均分为A、B和C3组,A组饲喂无抗基础日粮,B、C组分别在基础日粮中添加抗生素和益生菌制剂。试验分为45~70kg(31d)和70~90kg(24d)2个阶段。结果表明:在45~70kg阶段,B、C组猪的平均日增重和平均日采食量分别比A组高出6.17%(P〉0.05)、1.23%(P〉0.05)和11.94%(P〉0.05)、12.94%(P〉0.05);在70~90kg阶段,B、C组猪的平均日增重和平均日采食量分别比A组高出16.46%(P〉0.05)、22.78%(P〈0.05)和16.38%(P〈0.05)、15.13%(P〈0.05),平均料肉比比A组分别降低了5.96%(P〉0.05)和10.03%(P〉0.05);在整个试验阶段,B、C二组猪在平均日增重和平均日采食量方面较A组分别提高了11.1l%(P〉0.05)、12.35%(P〉0.05)和14.29%(P〉0.05)、14.29%(P〉0.05),在料肉比方面非常接近。试验结果说明,抗生素和益生菌制剂都能有效地改善生长育肥猪的生产性能,且益生菌制剂能有效替代抗生素。
The effect of probiotic on growth performance in growing-finishing pig was conducted with 30 PIC pigs (45 kg), which were randomly divided into three groups (A, B and C), supplemented with basal diet, basal diet + antibiotic and basal diet + probiotic, respectively. The trial divided into two parts (45-70 kg, 31 d; 70N90 kg, 24 d). The results showed that in stage one, the ADG and ADFI in group B and C were greater than that in group A by 6.17%(P〉0.05), 1.23%(P〉0.05) and 11.94%(P〉 0.05), 12.94%(P〉0.05) respectively. In stage two, the ADG and ADFI in group B and C were greater than that in group A by 16.46%(P〉0.05), 22.78%(P〈0.05) and 16.38%(P〈0.05), 15.13%(P〈0.05) re spectively. The FCR in group B and C was lower than that in group A by 5.96%(P〉0.05) and 10.03% (P〉0.05). In the whole trial period, the ADG and ADFI in group B and C were greater than that in group A by 11.11%(P〉0.05), 12.35%(P〉0.05)and 14.29%(P〉0.05), 14.29%(P〉0.05)respectively, and the FCR in these three groups were approximated. It is suggested that both antibiotic and probiotic could improve the growth performance of growing-finishing pig effectively, and the probiotic could be a viable alternative to antibiotic.
出处
《饲料工业》
北大核心
2014年第14期38-40,共3页
Feed Industry