Acta Veterinaria et Zootechnica Sinica ›› 2021, Vol. 52 ›› Issue (4): 1031-1041.doi: 10.11843/j.issn.0366-6964.2021.04.018

• ANIMAL NUTRITION AND FEEDS • Previous Articles     Next Articles

Effects of Bacillus Coagulans on Growth Performance, Serum Biochemical Indices and Tibia Strength Indices of Broilers

WU Zhengke1, ZHANG Anrong1, CHEN Zhimin1, CHANG Wenhuan1, LIU Guohua1, CAI Huiyi1,2, ZHENG Aijuan1*   

  1. 1. The Key Laboratory of Feed Biotechnology of Ministry of Agriculture and Rural Affairs, Feed Research Institute of Chinese Academy of Agricultural Sciences, Beijing 100081, China;
    2. National Engineering Research Center of Biological Feed, Beijing 100081, China
  • Received:2020-09-11 Online:2021-04-23 Published:2021-04-25

Abstract: The present study was conducted to evaluate the effects of Bacillus Coagulans on growth performance, serum biochemical and tibia indexes of broilers. One hundred and eighty 1-day-old healthy Arbor Acres broilers were randomly allotted to three treatments (basal diet; basal diet + 5 mg·kg-1 flavomycin, 75 mg·kg-1 aureomycin and 20 mg·kg-1 kitasamycin; basal diet + 3.6×109 CFU·kg-1 Bacillus Coagulans). The experiment lasted for 42 days. The results showed as follows: 1) Bacillus Coagulans supplementation significantly reduced the average daily feed intake of 1-21 day broilers(P<0.05), and no significant difference in BW and ADG were observed among the treatment groups (P>0.05). 2) Compared with the control group, the supplementation of Bacillus Coagulans significantly increased the serum concentrations of triglyceride, total cholesterol and alkaline phosphatase activity of 1-21 day-old broilers (P<0.05). 3) Compared with the control group and antibiotic group, the supplementation of Bacillus Coagulans significantly increased the serum concentrations of total protein, albumin and globulin of 1-21 day broilers (P<0.05), but significantly reduced the serum ammonia and aric acid content (P<0.05), and had no significant effect on serum concentrations of total protein and albumin of day 42 broilers, but reduced the concentrations of serum ammonia. 4) The supplementation of Bacillus Coagulans significantly increased the content of calcium in the tibia of day 21 and day 42 broilers (P<0.05), and no significant difference in tibia (day 21 and 42)ash and phosphorus (day 21) content were observed among the treatment groups (P>0.05). Moreover, the tibia strength was the highest on day 42 in Bacillus Coagulans supplementation group(P>0.05). In conclusion, Bacillus Coagulans can reduce the average daily feed intake and improve the efficiency of feed conversion without decreasing the daily weight gain of broilers in the early stage. Dietary supplementation with Bacillus Coagulans supplementation is also beneficial to promote the metabolism and turnover of lipids and proteins, and improve the deposition of calcium and phosphorus in the tibia of broilers.

Key words: Bacillus Coagulans, broilers, growth performance, serum biochemical indices, tibia indices

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