China Animal Husbandry and Veterinary Medicine ›› 2020, Vol. 47 ›› Issue (9): 2849-2856.doi: 10.16431/j.cnki.1671-7236.2020.09.018

• Animal Nutrition and Feed Science • Previous Articles     Next Articles

Effects of Clostridium butyricum on Calcium and Phosphorus Metabolism and Tibia Indexes of Broilers

ZHANG Anrong1, LIU Jiao1, CHEN Zhimin1, CHANG Wenhuan1, DENG Xuejuan2, CAI Huiyi1,2, LIU Guohua1, ZHENG Aijuan1   

  1. 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
  • Received:2020-02-28 Online:2020-09-20 Published:2020-09-16

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.

Key words: Clostridium butyricum; broilers; calcium and phosphorus metabolism; tibia index; feces

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