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首页> 外文期刊>Journal of Animal Physiology and Animal Nutrition >Dietary grape seed procyanidins suppressed weaning stress by improving antioxidant enzyme activity and mRNA expression in weanling piglets
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Dietary grape seed procyanidins suppressed weaning stress by improving antioxidant enzyme activity and mRNA expression in weanling piglets

机译：通过改善抗氧化酶活性和断奶仔猪中的抗氧化酶活性和mRNA表达，饮食葡萄籽procyanidins抑制了断奶胁迫

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摘要

This study was conducted to investigate the effect of grape seed procyanidins (GSP) on growth performance, digestive enzyme activity, antioxidant enzyme activity and mRNA expression in weanling piglets. A total of 96 piglets (Pietrain x Large White) with an average initial body weight (BW) of 8.4 +/- 1.7 kg were weaned at 28 days, and randomly divided into 4 groups. Four groups of animals were fed with a basic diet supplemented with various doses of GSP (0, 40, 70 and 100 mg/kg respectively) during the 28-day treatment period. The results showed that the group receiving 40 mg/kg GSP significantly increased the average daily gain (ADG, p < .05) and decrease the feed/gain ratio (F/G, p < .05). Interestingly, the incidence of diarrhoea was significantly reduced in the groups of 40 and 70 mg/kg GSP, but it was increased in the group of 100 mg/kg GSP. Subsequent biochemical studies indicated that dietary GSP significantly increased the activities of digestive enzymes and antioxidant enzymes, including amylase (Amy), lipase(LPS, p < .05), glutathione peroxidase activity (GSH-Px, p < .05), superoxide dismutase activity (SOD, p < .05) and total antioxidant capacity (T-AOC, p < .05) in serum, liver and muscle, increased the expression of GSH-Px, SOD and CAT genes (p < .05) in the liver, and decreased the level of malondialdehyde (MDA, p < .05) in serum, liver and muscle. Taken together, these studies revealed that low GSP supplement in diets can improve growth performance of weaned piglets, which is associated with increased digestive and antioxidant enzyme activities and enhanced resistance to weanling stress.
机译：进行了该研究以研究葡萄籽胰蛋白酶（GSP）对断奶仔猪生长性能，消化酶活性，抗氧化酶活性和mRNA表达的影响。在28天时断奶，总共96个仔猪（Pietrain X大白色），平均初始体重（BW）为8.4 +/- 1.7千克，并随机分为4组。在28天治疗期间，通过补充有各种剂量的GSP（0,40,70和100mg / kg的碱性饮食。结果表明，接受40mg / kg GSP的基团显着增加了平均每日增益（ADG，P <.05）并降低进料/增益比（F / g，P <.05）。有趣的是，腹泻的发病率在40和70mg / kg GSP的组中显着降低，但在100mg / kg GSP组中增加。随后的生化研究表明，膳食GSP显着增加了消化酶和抗氧化酶的活性，包括淀粉酶（艾米），脂肪酶（LPS，P <.05），谷胱甘肽过氧化物酶活性（GSH-PX，P <.05），超氧化物歧化酶血清，肝脏和肌肉中的活性（SOD，P <，05）和总抗氧化能力（T-AOC，P <.05）增加了GSH-PX，SOD和CAT基因的表达（P <.05）肝脏，并降低了血清，肝脏和肌肉中的丙二醛（MDA，P <.05）的水平。这些研究表明，饮食中低GSP补充剂可以提高断奶仔猪的生长性能，这与增加的消化和抗氧化酶活性和增强对断奶应激的抗性相关。

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