title: Effects of chestnut tannins on the meat quality, welfare, and antioxidant status of heat-stressed lambs.
abstract: A study was conducted to evaluate the effects of chestnut tannins (CT) on the meat quality, welfare and antioxidant status of heat-stressed lambs. Lambs in one group were raised at 20°C and fed a basal diet (N), and three other groups (32°C) were fed a basal diet with 0 (CT0), 5 (CT5), and 10 g (CT10) of CT/kg. Addition of CT increased the b* and L* values of meat and superoxide dismutase and glutathione peroxidase activity in the serum and liver of heat-stressed lambs. The malondialdehyde concentration in meat, serum, and liver of heat-stressed lambs was decreased by dietary CT supplementation. Lambs in the CT0 group had higher cortisol, T3, and T4 levels, creatine kinase activity, white blood cell count, neutrophil count, neutrophil:lymphocyte ratio and a lower lymphocyte count than that in the N and CT10 groups. In conclusion, the addition of CT improved meat quality, certain stress parameters, and the antioxidant status of heat-stressed lambs.
authors.affiliation: State Key Lab of Animal Nutrition, Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing 100193, PR China; Qingdao Agricultural University, Qingdao 266109, PR China.
authors.forename: Huawei
authors.initials: H
authors.lastname: Liu
authors.affiliation: New Hope Liuhe Corp. Ltd., Beijing 100102, PR China.
authors.forename: Ke
authors.initials: K
authors.lastname: Li
authors.affiliation: New Hope Liuhe Corp. Ltd., Beijing 100102, PR China.
authors.forename: Lv
authors.initials: L
authors.lastname: Mingbin
authors.affiliation: Qingdao Agricultural University, Qingdao 266109, PR China.
authors.forename: Jinshan
authors.initials: J
authors.lastname: Zhao
authors.affiliation: State Key Lab of Animal Nutrition, Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing 100193, PR China. Electronic address: benhaixiong@163.com.
authors.forename: Benhai
authors.initials: B
authors.lastname: Xiong
mesh_terms: D031319:Aesculus / Q000737:chemistry*; D000827:Animal Welfare; D000818:Animals; D000975:Antioxidants / Q000378:metabolism*; D018882:Heat Stress Disorders / Q000662:veterinary*; D008297:Male; D008460:Meat / Q000592:standards*; D012756:Sheep; D012757:Sheep Diseases / Q000188:drug therapy; D013634:Tannins / Q000737:chemistry / Q000494:pharmacology*
chemical_list: D000975:Antioxidants; D013634:Tannins
keywords: Antioxidant status; Chestnut tannins; Lamb; Meat quality; Welfare