| 丁酸梭菌对肉鸡钙磷代谢和胫骨指标的影响 |
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| 引用本文： | 张安荣,刘娇,陈志敏,常文环,邓雪娟,蔡辉益,刘国华,郑爱娟.丁酸梭菌对肉鸡钙磷代谢和胫骨指标的影响[J].中国畜牧兽医,2020,47(9):2849-2856. |
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| 作者姓名： | 张安荣 刘娇 陈志敏 常文环 邓雪娟 蔡辉益 刘国华 郑爱娟 |
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| 作者单位： | 1. 中国农业科学院饲料研究所, 农业农村部饲料生物技术重点开放实验室, 北京 100081;2. 生物饲料开发国家工程研究中心, 北京 100081 |
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| 基金项目： | 国家重点研发计划（2018YFD0500600） |
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| 摘 要： | 试验通过在基础日粮中添加丁酸梭菌，研究其对肉鸡钙磷代谢和胫骨指标的影响。选择1日龄180只健康AA肉鸡，随机分入3个处理组，每个处理组6个重复，分别为对照组、抗生素组（ATB）和丁酸梭菌组（CB）。对照组饲喂基础日粮，ATB组在基础日粮中添加5 mg/kg黄霉素、75 mg/kg金霉素和20 mg/kg吉他霉素，CB组在基础日粮中添加2.5×108 CFU/kg丁酸梭菌，试验期42 d。结果显示，与对照组相比，①CB组肉鸡血清钙（Ca）、磷（P）含量差异不显著（P>0.05），21日龄ATB组肉鸡血清钙含量显著提高（P<0.05）；②21日龄CB组肉鸡胫骨强度显著提高（P<0.05）；42日龄CB组肉鸡胫骨磷含量极显著提高（P<0.01）；③21日龄CB组肉鸡排泄物中磷含量极显著降低（P<0.01），并与ATB组无显著差异；42日龄CB组肉鸡排泄物中钙含量极显著提高（P<0.01），排泄物中磷含量显著提高（P<0.05）。综合上述结果，在AA肉鸡基础日粮中添加2.5×108 CFU/kg丁酸梭菌有利于改善肉鸡的胫骨发育，改善肉鸡对钙、磷的吸收利用，能有效降低21日龄肉鸡钙、磷排泄量，但并未降低42日龄肉鸡排泄物中钙、磷含量。
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| 关 键 词： | 丁酸梭菌 肉鸡 钙、磷代谢 胫骨指标 排泄物 |
| 收稿时间： | 2020-02-28 |
Effects of Clostridium butyricum on Calcium and Phosphorus Metabolism and Tibia Indexes of Broilers |
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| ZHANG Anrong,LIU Jiao,CHEN Zhimin,CHANG Wenhuan,DENG Xuejuan,CAI Huiyi,LIU Guohua,ZHENG Aijuan.Effects of Clostridium butyricum on Calcium and Phosphorus Metabolism and Tibia Indexes of Broilers[J].China Animal Husbandry & Veterinary Medicine,2020,47(9):2849-2856. |
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| Authors: | ZHANG Anrong LIU Jiao CHEN Zhimin CHANG Wenhuan DENG Xuejuan CAI Huiyi LIU Guohua ZHENG Aijuan |
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| Institution: | 1. Key Laboratory of Feed Biotechnology, Ministry of Agriculture and Rural Affairs, Institute of Feed Research, Chinese Academy of Agricultural Sciences, Beijing 100081, China;2. National Engineering Research Center of Biological Feed Development, Beijing 100081, China |
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| Abstract: | The effects of Clostridium butyricum on calcium and phosphorus metabolism and tibia indexes in broiler chickens were evaluated in this study.One hundred eighty 1-day-old healthy Arbor Acres broiler chickens were randomly allotted to three groups:the control group,antibiotic group and Clostridium butyricum group with six replicates per group and 10 chickens per replicate.The broilers in control group were fed with the basic diet,while the antibiotic group was fed with 5 mg/kg of flavomycin,75 mg/kg of aureomycin and 20 mg/kg of kitasamycin.Clostridium butyricum group was fed with 2.5×108 CFU/kg Clostridium butyricum in the basic diet for 42 days.The results showed that:Compared with the control group,①the supplementation of Clostridium butyricum did not significantly affect serum calcium and phosphorus level of broilers (P>0.05),and adding antibiotic significantly increased serum calcium level of 21-day-old broilers(P<0.05).②The addition of Clostridium butyricum increased tibia strength at 21-day-old (P<0.05),and phosphorus content of tibia at 42-day-old (P<0.01).③The supplementation of Clostridium butyricum extremely significantly decreased the phosphorus content in feces of 21-day-old broilers (P<0.01),and had no significant difference with ATB group (P>0.05).The supplementation of Clostridium butyricum increased calcium content (P<0.01) and phosphorus content (P<0.05) in feces of 42-day-old broilers.Based on the above results,adding 2.5×108 CFU/kg Clostridium butyricum could improve the tibia development,increase the absorption and utilization of calcium and phosphorus by broilers,and efficiently reduce the calcium and phosphorus excretion of 21-day-old broilers,but not for 42-day-old broilers. |
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| Keywords: | Clostridium butyricum broilers calcium and phosphorus metabolism tibia index feces |
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