China Animal Husbandry and Veterinary Medicine ›› 2025, Vol. 52 ›› Issue (5): 2157-2165.doi: 10.16431/j.cnki.1671-7236.2025.05.020

• Nutritionand Feed • Previous Articles    

Research Progress on Biological Functions of Soy Isoflavones and Its Application in Animal Production

TANG Huangyao1, ZHANG Wei1, WEI Hao1, WANG Feiying1, LIAO Xiaocui1, ZHANG Zhenyu2   

  1. 1. Sichuan Sinyiml Biotechnology Co., Ltd., Mianyang 622650, China;
    2. Meishan Vocational Technical College, Meishan 620010, China
  • Received:2024-08-26 Published:2025-04-27

Abstract: Soy isoflavones are a type of secondary metabolite produced by leguminous plants,which have various biological functions,including anti-cancer properties,prevention of cardiovascular diseases,and improvement of bone health.Initially,they were primarily utilized in the pharmaceutical and food industries.Subsequent research revealed that soy isoflavones play a positive role in enhancing animal growth performance,improving reproductive performance,and enhancing the quality of livestock products.Consequently,soy isoflavones have been widely used in the livestock industry as a green,safe,and efficient feed additive.Soy isoflavones are a polyphenolic mixture consisting of 12 components,with the aglycone structure of the free form being chemically similar to estrogen,enabling it to exert estrogen-like effects.Particularly,the aglycone and daidzein in soy isoflavones can improve reproductive performance in breeding animals.Additionally,soy isoflavones possess strong antioxidant properties,showing significant potential for application in livestock and poultry production.However,the optimal supplementation levels of soy isoflavones at different growth stages of livestock and poultry,as well as the reasons for their varying effects on growth performance,remain unclear.The author introduces the structure and physicochemical properties,absorption and metabolism,biological functions,and applications of soy isoflavones in animal production.It also addresses the current issues in the use of soy isoflavones and highlights future research priorities,with the aim of providing a reference for the further development and utilization of soy isoflavones in livestock production.

Key words: soy isoflavones; biological function; animal production; application

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