黄艺珠 1虞业凌 2章亮 1谢璐娜 3范斯敏 4余增峰 5赖州文1
作者信息
- 1. 新奥(厦门)农牧发展有限公司 福建 厦门 361006
- 2. 厦门麦卢考生物科技有限公司 福建 厦门 361101
- 3. 龙岩市动物疫病预防控制中心 福建 龙岩 364000
- 4. 南平市建阳区动物疫病预防控制中心 福建 南平 354200
- 5. 福安市农业农村局 福建福安 355000
- 折叠
摘要
Abstract
This experiment aimed to investigate the effects of replacing feed antibiotics with a compound preparation of tributyrin and tannin on the production performance of broilers.A total of 264 AA broilers were randomly divided into 3 treatment groups,with 8 replicates per group and 11 broilers per replicate.The negative control group was fed a basal diet;the positive control group was fed a basal diet with 150 mg/kg chlortetracycline;and the test group was fed a basal diet with 1 000 g/t of a compound preparation of tribu-tyrin and tannin.The trial period was 42 days,divided into four stages:1-10 days,11-24 days,25-34 days,and 35-42 days.The re-sults showed that during the first phase(1-10 days),total weight gain,average daily gain,and total feed intake were highest in the pos-itive control group,followed by the test group,and then the negative control group,though the differences among the three groups were not significant(P>0.05).In terms of the feed conversion ratio(FCR),the test group was slightly higher than the other two groups,but the difference was also not significant(P>0.05).During the second phase(11-24 days),the growth rate of broilers in the test group acceler-ated,and both total weight gain and average daily gain were slightly higher than those in the positive control group,with a slight im-provement in FCR as well,although the differences remained non-significant(P>0.05).In the third phase(25-34 days),the growth ad-vantage of the test group further expanded,with the highest total weight gain and average daily gain among the three groups and the lowest FCR,but the differences were still not significant(P>0.05).In the fourth phase(35-42 days),the test group maintained its growth-promoting advantage,with the highest total weight gain and average daily gain,and the lowest FCR,though the differences were still not significant(P>0.05).Overall,across the entire trial period(1-42 days),the total weight gain,average daily gain,and Euro-pean Performance Efficiency Index(EPEI)of the test group were the highest,but the differences among the three groups were not sig-nificant(P>0.05).However,the FCR of the test group was the lowest,and the difference was significant compared to the positive control group(P<0.05).These results indicate that the addition of a compound preparation of tributyrin and tannin to the diet can improve the productive performance of broilers,enhance feed conversion,improve FCR,and promote growth more effectively than antibiotics.关键词
三丁酸甘油酯/单宁酸/复合制剂/抗生素/肉鸡/生产性能Key words
Tributyrin/Tannin/Compound preparation/Antibiotics/Broilers/Production performance
