饲料中添加脯氨酸对浅色黄姑鱼生长、体组成及抗氧化能力的影响  

Effects of dietary proline on growth,body composition and antioxidant capacity of Chu’s croaker(Nibea coibor)

作　　者：荣华[1,2] 夏优 王晓雯 胡青[1,2] 贾丹 武祥伟 孔令富[1,2] 毕保良 RONG Hua;XIA You;WANG Xiaowen;HU Qing;JIA Dan;WU Xiangwei;KONG Lingfu;BI Baoliang(Faculty of Animal Science and Technology,Yunnan Agricultural University,Kunming 650201,Yunnan,China;Key Laboratory of Protection and Sustainable Utilization of Plateau Fishery Resources in University of Yunnan Province,Kunming 650201,Yunnan,China)

机构地区：[1]云南农业大学动物科学技术学院,云南昆明650201 [2]云南省高校高原渔业资源保护与可持续利用重点实验室,云南昆明650201

出　　处：《上海海洋大学学报》2023年第1期89-97,共9页Journal of Shanghai Ocean University

基　　金：云南省农业基础研究联合专项面上项目(2018FG001-044);长江上游鱼类资源保护与利用四川省重点实验室开发基金项目(NJTCCJSYSYS12);云南省庄平专家工作站项目(202005AF150042)。

摘　　要：为了研究饲料中添加脯氨酸对浅色黄姑鱼(Nibea coibor)生长、体组成及抗氧化能力的影响,试验选取450尾浅色黄姑鱼,随机分为6个处理组,每个处理组设3个重复,分别饲喂添加0、5、10、15、20和25 g/kg脯氨酸的试验饲粮,进行为期8周的饲养实验。结束后进行生物学指标测定,测定各实验组中浅色黄姑鱼的生长、体常规成分及抗氧化指标。结果表明:脯氨酸对浅色黄姑鱼生长性能和饲料利用率没有显著的影响,但显著影响机体的蛋白质沉积。通过全鱼粗蛋白估算出的最佳饲料脯氨酸添加量为14.73 g/kg。另外,饲料中添加脯氨酸显著提高了肝脏和血清中的还原性谷胱甘肽(GSH)、谷胱甘肽过氧化物酶(GSH-PX)和过氧化氢酶(CAT)及血清中的超氧化物歧化酶(SOD)含量,却显著降低了浅色黄姑鱼肝脏和血清中的丙二醛(MDA)含量。综上,饲料中添加脯氨酸对浅色黄姑鱼生长的促进作用不显著,但可以促进蛋白沉积和增强抗氧化能力。To evaluate the effects of dietary proline supplement on growth,body composition and antioxidant capacity of Nibea coibor,a total of 450 Nibea coibor were randomly assigned into six treatments and fed with diets supplemented with different levels of proline(0,5,10,15,20 and 25 g/kg of dry diet)for eight weeks.After feeding,growth,body composition and antioxidant capacity of Nibea coibor were determined.The result showed that dietary proline levels had no significant effect on the growth of Nibea coibor.However,proline affected significantly the crude protein of whole-body in Nibea coibor.The optimum amount of dietary proline was estimated to be 14.73 g/kg based on the crude protein of whole-body.Increasing proline levels supplementation enhanced significantly glutathione(GSH),glutathione-peroxidase(GSH-PX)and catalase(CAT)in liver and serum of Nibea coibor and superoxide dismutase(SOD)in the serum.Contrary,increasing proline levels supplementation decreased significantly the malondialdehyde(MDA)in Nibea coibor.In conclusion,proline supplementation does not affect growth performance of Nibea coibor.However,it promotes protein synthesis and enhance antioxidant capacity of Nibea coibor.

关 键 词：浅色黄姑鱼 脯氨酸 生长性能 体组成 抗氧化能力 

分 类 号：S965.325[农业科学—水产养殖]