不同脂肪源对彭泽鲫亲本生长性能、卵巢脂肪酸组成、性腺发育以及血清生化和抗氧化指标的影响  

Effects of Different Lipid Sources on Growth Performance,Ovarian Fatty Acid Composition,Gonad Development and Serum Biochemical and Antioxidant Indices of Pengze Crucian Carp(Carassius auratus var.Pengze)Broodstock

作　　者：肖俊 姚远 丁立云[1,2] 张桂芳 张爱芳[1,2] 巫伟华 袁芳凯[1,2] XIAO Jun;YAO Yuan;DING Liyun;ZHANG Guifang;ZHANG Aifang;WU Weihua;YUAN Fangkai(Jiangxi Fisheries Research Institute,Nanchang 330039,China;Scientific Observing and Experimental Station of Lake Fishery Resources and Environment,Ministry of Agriculture and Rural Affairs,Nanchang 330039,China)

机构地区：[1]江西省水产科学研究所,南昌330039 [2]农业农村部湖泊渔业资源环境科学观测实验站,南昌330039

出　　处：《动物营养学报》2024年第10期6599-6610,共12页CHINESE JOURNAL OF ANIMAL NUTRITION

基　　金：国家现代农业产业体系(CARS-46);江西省重点研发计划(20203BBF63045);江西省现代农业产业技术体系(JXARS-03);江西省农牧渔业科研指导性课题(2023-35)。

摘　　要：本试验旨在探究饲料不同脂肪源对彭泽鲫亲本生长性能、卵巢脂肪酸组成、性腺发育以及血清生化和抗氧化指标的影响。试验选取初始体质量为(258.95±2.67) g的健康彭泽鲫亲本135尾,随机分成3组,每组3个重复,每个重复15尾鱼。3组试验鱼分别饲喂含有5%鱼油(FO组)、大豆油(SO组)和亚麻籽油(LO组)的等氮等能饲料。试验期60 d。结果表明:1)各组彭泽鲫亲本生长性能指标均无显著差异(P>0.05)。2)各组卵巢组织均检测出7种饱和脂肪酸(SFA)、4种单不饱和脂肪酸(MUFA)和8种多不饱和脂肪酸(PUFA)。其中,SO组卵巢花生四烯酸(ARA)、二十二碳六烯酸(DHA)和总高不饱和脂肪酸(HUFA)含量均显著高于其他2组(P<0.05);LO组卵巢总n-3 PUFA和二十碳五烯酸(EPA)含量以及n-3 PUFA/n-6 PUFA值均显著高于其他2组(P<0.05);FO组卵巢总MUFA含量显著高于其他2组(P<0.05)。3) SO组性腺指数最高,其次是LO组,FO组最低,且各组之间均存在显著差异(P<0.05);FO组卵径显著低于SO组和LO组(P<0.05)。4) LO组血清甘油三酯和总胆固醇含量显著低于FO组(P<0.05),FO组血清谷草转氨酶活性显著低于LO组(P<0.05),FO组血清超氧化物歧化酶活性和总抗氧化能力显著高于LO组(P<0.05)。综上所述,饲料不同脂肪源对彭泽鲫亲本生长性能无显著影响,大豆油和亚麻籽油在彭泽鲫亲本饲料中可以一定程度上代替鱼油,有利于促进其性腺发育和提高卵巢ARA、DHA和EPA含量。This experiment was conducted to investigate the effects of different dietary lipid sources on growth performance,ovarian fatty acid composition,gonad development and serum biochemical and antioxidant indi-ces of Pengze crucian carp(Carassius auratus var.Pengze)broodstock.A total of 135 healthy Pengze crucian carp broodstock with an initial body weight of(258.95±2.67)g were randomly divided into 3 groups with 3 replicates per group and 15 fish per replicate.The fish in the three groups were fed iso-nitrogenous and iso-en-ergetic diets containing 5%fish oil(FO group),soybean oil(SO group)and linseed oil(LO group),re-spectively.The experiment lasted for 60 days.The results showed as follows:1)there were no significant differences in the growth performance indices of Pengze crucian carp broodstock among all groups(P>0.05).2)A total of 7 kinds of saturated fatty acids,4 kinds of monounsaturated fatty acids(MUFA)and 8 kinds of polyunsaturated fatty acids(PUFA)were detected in ovarian tissues in all groups.The contents of arachidonic acid(ARA),docosahexaenoic acid(DHA)and total highly unsaturated fatty acid(HUFA)in ovary in SO group were significantly higher than those in the other two groups(P<0.05);the contents of total n-3 PUFA and eicosapentaenoic acid(EPA)as well as n-3 PUFA to n-6 PUFA ratio in ovary in LO group were signifi-cantly higher than those in the other two groups(P<0.05);the total MUFA content in ovary in FO group was significantly higher than that in the other two groups(P<0.05).3)The gonad somatic index in SO group was the highest,followed by LO group,FO group was the lowest,and there were significant differences among all groups(P<0.05);the egg diameter in FO group was significantly lower than that in SO group and LO group(P<0.05).4)The serum contents of triglyceride and total cholesterol in LO group were significantly lower than those in FO group(P<0.05),the serum aspartate transaminase activity in FO group was significantly lower than that in LO group(P<0.05),and the serum superoxide dismutase act

关 键 词：脂肪源 彭泽鲫亲本 生长性能 卵巢 脂肪酸 性腺发育 

分 类 号：S963[农业科学—水产养殖]