China Animal Husbandry and Veterinary Medicine ›› 2020, Vol. 47 ›› Issue (8): 2385-2394.doi: 10.16431/j.cnki.1671-7236.2020.08.006

• Animal Nutrition and Feed Science • Previous Articles     Next Articles

Effects of Fermented Cottonseed Meal on Growth Performance,Apparent Digestibility, Carcass Traits,and Lipid-related Indices in Broilers

NIU Junli, WEI Lianqing, ZHANG Wenju, NIE Cunxi   

  1. College of Animal Science & Technology, Shihezi University, Shihezi 832003, China
  • Received:2020-02-07 Online:2020-08-20 Published:2020-08-15

Abstract: This study was conducted to investigate the effects of fermented cottonseed meal (fermented by Candida tropicalis) on the growth performance,apparent digestibility,carcass traits,and lipid-related indices in broilers.One hundred and eight one-day-old Cobb broilers were randomly assigned to three groups with six replicates of 10 birds in each.The three diets consisted of a control diet supplemented with fermented cottonseed meal without bacteria (CSM,CON) and the experimental diets with fermented cottonseed meal with Candida tropicali (FCSM) and CSM+Candida tropicali (CT-USCM),respectively.The results showed as follows:①FCSM increased the average daily feed intake compared with CON (P<0.05).FCSM and CT-USCM had lower feed and gain ratio than CON group (P<0.05).②The body weight increased in response to dietary FCSM supplementation (P<0.05),the percentage of liver of CT-USCM group was higher than CON group (P<0.05),additionally,FCSM and CT-USCM supplementation decreased the percentage of abdominal fat and subcutaneous fat thickness (P<0.05).③The dietary nutrient digestibility of dry matter and crude protein significantly increased (P<0.05) with FCSM and CT-USCM supplementation.④Serum concentration of glucose,triglyceride,and low-density lipoprotein cholesterol decreased (P<0.05) in FCSM and CT-USCM fed broilers compared with CON group broilers.⑤The activity of hormone-sensitive esterase and the level of growth hormone in the liver and abdominal fat were higher (P<0.05) in FCSM and CT-USCM groups than CON group.The activity of acetyl CoA carboxylase and malic enzyme in the liver and abdominal fat in FCSM group were lower than CON group (P<0.05).The activity of lipoprotein lipase and fatty acid synthase in liver and abdominal fat in FCSM group were higher than the other two groups,respectively (P<0.05).In conclusion,both FCSM and CT-USCM treatment were beneficial for broilers as they positively affect their growth and digestibility in addition to altering their fat deposition.

Key words: Candida tropicalis; fermented cottonseed meal; growth performance; carcass traits; apparent digestibility; fat deposition

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