Liu Huawei, Li Ke, Mingbin Lv, Zhao Jinshan, Xiong Benhai
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.
New Hope Liuhe Corp. Ltd., Beijing 100102, PR China.
Meat Sci. 2016 Jun;116:236-42. doi: 10.1016/j.meatsci.2016.02.024. Epub 2016 Feb 13.
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.
进行了一项研究，以评估栗木单宁（CT）对热应激羔羊的肉质、健康状况和抗氧化状态的影响。一组羔羊在20°C下饲养并饲喂基础日粮（N），其他三组（32°C）分别饲喂添加0（CT0）、5（CT5）和10 g（CT10）CT/kg的基础日粮。添加CT可提高热应激羔羊的肉的b值和L值以及血清和肝脏中的超氧化物歧化酶和谷胱甘肽过氧化物酶活性。日粮添加CT可降低热应激羔羊的肉、血清和肝脏中的丙二醛浓度。与N组和CT10组相比，CT0组羔羊的皮质醇、T3和T4水平、肌酸激酶活性、白细胞计数、中性粒细胞计数、中性粒细胞：淋巴细胞比率更高，淋巴细胞计数更低。总之，添加CT可改善热应激羔羊的肉质、某些应激参数和抗氧化状态。
