Effect of dietary Tartary buckwheat extract supplementation on growth performance, meat quality and antioxidant activity in ewe lambs
Effect of dietary Tartary buckwheat extract supplementation on growth performance, meat quality and antioxidant activity in ewe lambs
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日粮中添加苦荞提取物对母羊羔羊生长性能、肉品质和抗氧化活性的影响
DOI：
10.1016/j.meatsci.2017.07.016
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发表时间：
2017
期刊：
影响因子：
7.1
通讯作者：
Zhang JX
中科院分区：
文献类型：
--
作者：
Zhao Junxing;Li Kan;Su Rui;Liu Wenzhong;Ren Youshe;Zhang Chunxiang;Du Min;Zhang Jianxing;Du Min;Zhang JX
本研究旨在研究苦荞麦提取物(TBE)对羔羊生长性能、肉质及胸长肌、腰肌中抗氧化活性的影响。结果表明，饲粮中添加TBE能提高仔猪的体重、平均日增重、屠体重、干物质采食量和消化器官重量。日粮总生物量对所测长肌的pH值、色泽、剪切力和肌内脂肪无影响，但蒸煮损失有所降低。试验组羔羊肌肉的总抗氧化能力和谷胱甘肽过氧化物酶4(Gpx4)活性均有所提高。超氧化物歧化酶、过氧化氢酶、GPx4和核因子-2(Nrf2)的mRNA含量在各组间无差异，Gpx4和Nrf2的蛋白水平较高。综上所述，TBE可作为羔羊生产中的一种饲料成分，用于改善羔羊的生长性能，缓解氧化应激，提高肉的持水性。
The objective of this study was to investigate the effect of dietary Tartary buckwheat extract (TBE) supplementation on animal growth performance, meat quality and antioxidative activity in theLongissimusthoracis et lumborummuscle of lambs. The results showed that dietary TBE increased body weight, average daily gain, carcass weight, dry matter intake, and digestive organ weight. Dietary TBE had no effect on the pH, color, shear force or intramuscular fat ofLongissimusmuscle examined, whereas the cooking loss was decreased. The total antioxidative capacity and glutathione peroxidase 4 (GPx4) activity ofLongissimusmuscle were increased in lambs fed TBE. The mRNA contents ofsuperoxide dismutase,catalase,GPx4andnuclear factor-like-2 factor(Nrf2) did not vary among the groups, and greater protein levels of GPx4 and Nrf2 were observed. Taken together, these results suggest that TBE can be used as a feed ingredient in lamb production to improve its growth performance, and relieve oxidative stress and increase water holding capacity of meat.