摘要
本试验旨在研究复合微生态制剂—固本康对肉鸡生产性能、盲肠菌群、免疫指标及抗氧化能力的影响,并为肉鸡养殖提供理论依据。将120只1日龄大小、健康状况基本相同的白羽肉鸡随机分为2组,即对照组和试验组,每组3个重复,每个重复20只。对照组饲喂基础饲粮,试验组在饲喂基础饲粮同时,分别定时在饮水中添加复合微生态制剂固本康稀释液。预试期3 d,正试期42 d。结果表明:与对照组相比,试验组肉鸡的饲料增重比在一定程度上低于对照组;能显著增加肉鸡盲肠乳杆菌数量,且显著降低17日龄和45日龄时肉鸡盲肠大肠杆菌数;显著提高24、31日龄和38日龄时血清新城疫血凝抑制抗体效价和IgG水平(P<0.05);同时显著提高17、24、31日龄和38日龄时血浆中总抗氧化能力(P<0.05)。由此可知,饮水中添加适量的该微生态制剂可促进肉鸡生长,调节盲肠菌群平衡,提高其抗氧化能力,同时在一定程度上增强肉鸡免疫力。
This experiment was conducted to investigate the effects of compound probiotics Gu Benkang on the growth performance, cecal microflora, immune indices and antioxidant capacity of broilers. One hundred and twenty one-day- old broiler chickens were randomly divided into 2 groups with 3 replicates in each group and 20 chickens per replicate. The chickens in the control group were fed a basal diet, and those in the other group were fed the basal diet and access to the water with compound probiotics. The pre-trial period lasted for 3 days, and the experiment lasted for 42 days. The results showed that： compared with the control group, the feed/gain （F/G） of broilers in test group was lower than that the control group ; the number of cecal Lactobacillus in probioties agent group was significantly higher than that in the control group （P〈0.05）, and the number of cecal E. coli of broilers aged 17 and 45 days in probiotics agent group decreased significantly low （P〈0.05）; This probiotics agent can significantly increase the serum IgG concentrations （P〈0.05）, the antibody titers of aged 24, 31 and 38 days （P〈0.05）and the total antioxidant capacity in plasma of aged 17, 24, 31 and 38 days （P〈0.05）. In conclusion, the supplementation of compound probiotics can improve the growth performance, gain a better cecal micro-ecosystem, and enhance the antioxidant function of broilers. Meanwhile, the supplementation of compound probiotics can improve the immune function of broilers.
出处
《中国畜牧杂志》
CAS
北大核心
2014年第1期58-62,共5页
Chinese Journal of Animal Science
关键词
复合微生态制剂
生产性能
盲肠菌群
免疫指标
抗氧化能力
肉鸡
compound probiotics
growth performance
cecal microflora
immune indices
antioxidant capacity
broilers
