%0 Journal Article %T 胍基乙酸对樱桃谷肉鸭生产性能和抗氧化能力的影响 %A 王亚琼 %A 刘强 %A 姜发彬 %A 袁庆启 %A 颜瑞 %A 庄苏 %J 南京农业大学学报 %D 2016 %R 10.7685/jnau.201505024 %X [目的] 本文旨在研究胍基乙酸(GAA)对樱桃谷肉鸭生长性能、屠宰性能、抗氧化能力的影响。[方法] 选用720只健康且体质量相近的10日龄樱桃谷肉鸭,随机分为4组,每组6个重复,每个重复30只。分别饲喂添加质量分数为0%(对照组)、0.025%(试验组Ⅰ)、0.05%(试验组Ⅱ)、0.10%(试验组Ⅲ)GAA的试验日粮。试验结束时(42日龄),每重复随机抽取1只肉鸭进行屠宰,测定各项指标。[结果] 与对照组相比,试验组的平均日增体质量有增高趋势,料重比有降低趋势,但差异均不显著(P>0.05);试验组Ⅱ的半净膛率、全净膛率、腿肌率均显著高于对照组(P<0.05);试验组Ⅱ胸肌中的肌酸含量与试验组Ⅲ血浆中的肌酸含量均显著高于对照组(P<0.05)。血清中,试验组总抗氧化能力(T-AOC)、过氧化氢酶(CAT)和超氧化物歧化酶(SOD)活性均有增加的趋势(P>0.05);丙二醛(MDA)含量均有所降低,其中试验组Ⅱ显著低于对照组(P<0.05);谷胱甘肽过氧化物酶(GSH-Px)活性分别比对照组提高了9.96%、32.46%、12.34%,且试验组Ⅱ显著高于其他3组(P<0.05);试验组Ⅱ的还原型谷胱甘肽(GSH)含量显著高于对照组(P<0.05)。肝脏中,胍基乙酸具有增加T-AOC、CAT、SOD、GSH-Px活性与GSH含量的趋势,其中试验组Ⅱ的SOD活性和GSH含量显著高于其他3组(P<0.05),GSH-Px活性显著高于对照组(P<0.05)。[结论] 日粮中添加GAA对提高肉鸭的生长性能无显著影响,但在本试验条件下,添加0.05%的GAA可在一定程度上改善樱桃谷肉鸭的屠宰性能和抗氧化能力。</br>[Objectives] The aim of the study was to investigate the effects of guanidinoacetic acid(GAA)on growth performance,slaughtering performance,and antioxidant capacity in Cherry Valley ducks. [Methods] A total of 720 healthy 10 day-old Cherry Valley ducks with roughly equal weight were randomly assigned to 4 groups with 6 replicates of 30 ducks in each replicate(pen). Ducks were fed a basal diet supplemented with 0%(control),0.025%(experiment Ⅰ),0.05%(experiment Ⅱ)and 0.10%(experiment Ⅲ)GAA. At 42 day-old,1 duck per pen was randomly selected for measuring the relative indexes. [Results] GAA supplementation tended to increase average daily gain(ADG)and decrease feed gain ratio(F/G)respectively,but it was not significant(P>0.05). The percentage of half eviscerated yield,eviscerated yield,and leg muscle also tended to be increased,especially in the experiment Ⅱ(P<0.05),compared with the control. The creatine content of breast muscle in experiment Ⅱ and the plasma creatine content in experiment Ⅲ were higher(P<0.05)than those in control. In serum,total antioxidant capacity(T-AOC),catalase(CAT)and superoxide dismutase(SOD)activity in the three experiment groups were numerically increased(P>0.05)and malondioldehyde(MDA)content tended to decrease,especially in experiment Ⅱ(P<0.05),compared with the control. Compared with the control,glutathione peroxidase(GSH-Px)activity in the three experiment groups were increased respectively by 9.96%,32.46%,12.34%,and the experiment Ⅱ was significantly higher than other groups(P<0.05). Reduced glutathione tablets(GSH)content was markedly increased(P<0.05)in experiment Ⅱ compared with the control. In liver,the activity of T-AOC,CAT,SOD,GSH-Px and the content of GSH tended to be increased when GAA was supple-mented,especially the SOD activity and GSH content in the %K 胍基乙酸 %K 肉鸭 %K 生长性能 %K 屠宰性能 %K 抗氧化能力< %K /br> %K guanidinoacetic acid(GAA) %K ducks %K growth performance %K slaughtering performance %K antioxidant capacity %U http://nauxb.njau.edu.cn/oa/darticle.aspx?type=view&id=201602013