Effects of guanidinoacetic acid and complex antioxidant supplementation on growth performance, meat quality, and antioxidant function of broiler chickens
Effects of guanidinoacetic acid and complex antioxidant supplementation on growth performance, meat quality, and antioxidant function of broiler chickens
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胍基乙酸和复合抗氧化剂补充剂对肉鸡生长性能、肉品质和抗氧化功能的影响
DOI：
10.1002/jsfa.11036
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发表时间：
2021-01-03
影响因子：
4.1
通讯作者：
Gao, Feng
中科院分区：
文献类型：
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作者：
Zhao, Wei;Li, Jiaolong;Gao, Feng
本研究旨在探讨饲粮中添加胍基乙酸（GAA）、复合抗氧化剂（CA）或二者联合应用对肉仔鸡生长性能、胴体性状、肉质和抗氧化能力的影响。试验选用25日龄肉仔鸡192只，采用2 × 2析因设计，试验设两个水平，其中GAA（0或600 mg kg ~（-1））和CA（0或150 mg kg ~（-1））为主效应。结果与对照组相比，GAA组、CA组、GAA + CA组的饲料转化率分别降低7.02%、6.58%、11.40%;添加胍基乙酸显著提高了全净膛率、pH值（24 h）（P < 0.05）。添加复合抗氧化剂可显著提高a* 值（P < 0.05）。GAA和CA配合使用对胴体性状和肉质无明显影响。胍基乙酸、CA单独及与GAA、CA合用均能降低活性氧（ROS）水平和丙二醛（MDA）含量（P < 0.05），GAA + CA组的肉仔鸡体内活性氧水平和MDA含量最低。结论饲粮中添加GAA、CA或其组合对肉仔鸡的生长性能和乳房抗氧化能力有有益影响，GAA和CA联合应用可发挥协同作用提高抗氧化能力。(c)2020化学工业协会
BACKGROUND This study was conducted to evaluate the effects of adding guanidinoacetic acid (GAA), or complex antioxidant (CA), or their combination, in diets on the growth performance, carcass traits, meat quality, and antioxidant capacity of broilers. A total of 192 25-day-old broilers were assigned to a 2 x 2 factorial design including two dietary supplements at two different levels, in which the main effects were the addition of GAA (0 or 600 mg kg(-1)) and CA (0 or 150 mg kg(-1)). This trial lasted for 18 days.RESULTS Compared with the control group, the GAA group, CA group, and GAA + CA group, decreased feed conversion ratio by 7.02%, 6.58%, and 11.40%, respectively. Guanidinoacetic supplementation increased eviscerated yield, pH(24h) (P < 0.05). Complex antioxidant supplementation increased the a* values (P < 0.05). The combination of GAA and CA did not affect the carcass traits and meat quality. Guanidinoacetic acid alone and CA alone and combined with GAA and CA decreased the reactive oxygen species (ROS) level and malonaldehyde (MDA) content (P < 0.05), and the GAA + CA group had the lowest ROS level and MDA content of broilers.CONCLUSION Dietary supplementation of GAA, CA or their combination had beneficial effects on growth performance and breast antioxidant capacity, and the combination of GAA and CA could exert a synergistic effect in improving antioxidant capacity. (c) 2020 Society of Chemical Industry