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Effects of dietary alpha-lipoic acid on carcass characteristics, antioxidant capability and meat quality in Hainan black goats

文献类型： 外文期刊

作者： Wang, Dingfa 1 ; Zhou, Luli 1 ; Zhou, Hanlin 1 ; Hou, Guanyu 1 ; Shi, Liguang 1 ;

作者机构： 1.Chinese Acad Trop Agr Sci, Trop Crops Genet Resources Inst, Res Ctr Anim Sci, Danzhou 571737, Hainan, Peoples R China

关键词： alpha-Lipoic acid;Hainan black goats;carcase characteristics;antioxidant capability;meat quality

期刊名称：ITALIAN JOURNAL OF ANIMAL SCIENCE （ 影响因子：2.217； 五年影响因子：2.376 ）

ISSN： 1594-4077

年卷期： 2017 年 16 卷 1 期

页码：

收录情况： SCI

摘要： The effects of alpha -lipoic acid (LA) on the carcase characteristics, antioxidant capability and meat quality of Hainan black goat were investigated in the present study. Thirty goats (10.71 +/- 0.42 kg) were randomly assigned with three levels of LA in the concentration diet (0, 300, 600 mg/kg). The goats fed for 70 days. The results showed that goats fed the diet containing 600 mg/kg LA had a significantly (p < .05) higher ADG and better feed conversion rate (FCR) compared with goats offered the basal diet without LA. There were no differences in carcase characteristics among the three treatments. For antioxidant enzymes, glutathione peroxidase (GSH-Px), superoxide dismutase (SOD), total antioxidant capacity (T-AOC) and catalase (CAT) in serum significantly increased (p < .05) in goats fed with 600mg/kg LA at day 70. The concentration of malondiadehhyde (MDA) was significantly lower (p < .05) in serum of goats that received 600 mg/kg LA than in the goats fed diet without LA. Addition level of LA had no significant impact on pH and intramuscular fat (IMF) of longissimus dorsi muscle tissue (LM) and semimembranosus muscle tissue (SM) in the goats (p > .05). However, increasing additional LA in the diet caused a decrease on drip loss and WBSF (p < .05). Treatment of goats with 600 mg/kg of LA has the lowest drip loss and WBSF. These results indicate that diet supplementation with LA may enhance antioxidant capability, improved the growth performance and meat quality in Hainan black goats.

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