China Animal Husbandry and Veterinary Medicine ›› 2023, Vol. 50 ›› Issue (8): 3102-3112.doi: 10.16431/j.cnki.1671-7236.2023.08.008

• Nutrition and Feed • Previous Articles    

Application of Different Sources of Tannin in Livestock Farming

WANG Siqi1, KONG Xiangyi1, YANG Mengran1, NING Can1, FAN Hui1, XIAO Wenguang1, WU Jing1,2,4, LIANG Zeng'enni3, YUAN Zhihang1,2,4   

  1. 1. College of Veterinary Medicine, Hunan Agricultural University, Changsha 410128, China;
    2. Hunan Engineering Research Center of Livestock and Poultry Health Care, Changsha 410128, China;
    3. Department of Hunan Agriculture Product Processing Institute, Hunan Academy of Agricultural Sciences, Changsha 410125, China;
    4. Hunan Engineering Research Center of Veterinary Drug, Changsha 410128, China
  • Received:2022-12-08 Published:2023-07-27

Abstract: Tannin is a kind of natural phenolic compound,which is mainly manifested as anti-inflammatory,antibacterial,antioxidant,antiviral and other biological activities.However,the significant differences in molecular composition and structure of tannin extracted from different plants have led to distinct roles for different sources of tannin in production farming.According to their structures,tannins are mainly divided into hydrolyzed tannin and condensed tannin.It has been shown that condensed tannin is commonly used as feed additives for ruminant livestock to improve rumen energy metabolism and increase feed utilization,while hydrolyzed tannin is mostly used as natural animal growth promoters and more widely used in pig and poultry farming.However,when applied in practice,the use of different concentrations of tannin has diverse effects.Therefore,to make full use of tannin resources in livestock farming,it is necessary to consider the source of tannin extract,the dose of tannin and the target of use.The authors present a review about the characteristics of different sources of tannins,and explain the potential reasons for the improvement of growth performance in different livestock by hydrolyzed tannins from Rhus chinensis Mill,chestnut(Castanea sativa Mill) and tara(Caesalpinia spinosa),and the possible mechanisms for the alteration of nitrogen metabolic pathways in ruminants by condensed tannins from Schinopsis spp.and Caragana korshinskii.Meanwhile,the specific applications of different sources of tannins and their applicable doses are discussed in order to provide theoretical guidance for the practical application of tannins in livestock farming.

Key words: hydrolyzed tannin; condensed tannin; feed additives; livestock farming

CLC Number: