China Animal Husbandry and Veterinary Medicine ›› 2019, Vol. 46 ›› Issue (10): 2902-2915.doi: 10.16431/j.cnki.1671-7236.2019.10.011

• Animal Nutrition and Feed Science • Previous Articles     Next Articles

Bran Nutritional Value and Its Fermented Feed Application in Animal Production

CUI Yiyan, TIAN Zhimei, LU Huijie, DENG Dun, MA Xianyong, CHEN Weidong   

  1. State Key Laboratory of Livestock and Poultry Breeding, The Key Laboratory of Animal Nutrition and Feed Science(South China), Ministry of Agriculture and Rural Affairs, Guangdong Key Laboratory of Animal Breeding and Nutrition, Guangdong Engineering Technology Research Center of Animal Meat Quality and Safety Control and Evaluation, Institute of Animal Science, Guangdong Academy of Agricultural Sciences, Guangzhou 510640, China
  • Received:2019-03-15 Online:2019-10-20 Published:2019-10-21

Abstract: China's grain bran production is huge,but it has not been fully utilized and its added value is low.Wheat bran has a high content of crude protein (CP) and crude fiber (CF),which has strong water absorption and is prone to mildew.Similarly,rice bran has a high CP and crude fat (EE) content,while it is prone to rancidity.In addition,the CP content of rye bran,oat bran and sorghum bran are higher.Corn husk has a high content of CP,neutral detergent fiber(NDF) and acid detergent fiber(ADF).Furthermore,bran is rich in minerals and active substances.Solid fermentation can decompose harmful substances and increase the active ingredients in food and feed.At present,the microorganisms used in bran fermentation are mainly mold,yeast,lactic acid bacteria,and bacillus,and a small number of edible fungi are used.Wheat bran,corn bran and rice bran can reduce the content of anti-nutritional factors by microbial fermentation.Microorganisms break down components that are not available and have low utilization rates to animals into small,easily digestible substances,and increase protein content and digestibility.In addition,bran produces a product rich in beneficial metabolites by solid-state fermentation,which provides a good source of antioxidants and probiotics for animals.Fermentation using bran feed can achieve multi-purpose use,reducing production costs and solving environmental pollution problems caused by waste discharge.Therefore,the nutritional value of bran,fermentation strains,changes before and after fermentation and the application of fermented feed in animal production were summarized in this paper,in order to provide some basis for the application of fermented bran.

Key words: bran; wheat bran; rice bran; fermentation

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