团头鲂“浦江1号”高世代选育群体养殖性能评价  

Evaluation on culture performance of high-generation selective strains of“Pujiang No.1”of blunt snout bream(Megalobrama amblycephala)

作　　者：巩广伟 周陆 余陆伟 GONG Guangwei;ZHOU Lu;YU Luwei(Shanghai Songjiang Aquatic Bred Farm Co.,Ltd.,Shanghai 201616,China;Shanghai Songjiang Fisheries Technical Extension Station,Shanghai 201600,China)

机构地区：[1]上海松江水产良种场有限公司,上海201616 [2]上海市松江区水产技术推广站,上海201600

出　　处：《水产科技情报》2024年第4期234-238,共5页Fisheries Science & Technology Information

摘　　要：为评价团头鲂“浦江1号”高世代选育群体(F13)的养殖性能,开展了F13群体与普通团头鲂在2龄和3龄阶段的养殖对比试验。结果显示,F13群体与普通团头鲂在2龄和3龄的成活率均在98%以上,但其饲料系数(1.96、2.90)显著低于普通团头鲂(2.17、3.34)(P<0.05)。在2龄阶段,F13群体的体质量增长量、绝对生长率和相对生长率均显著高于普通团头鲂(P<0.05);在3龄阶段,F13群体的体质量增长量和绝对生长率也显著高于普通群体(P<0.05),但2个群体的相对生长率无显著差异(P>0.05)。此外,“浦江1号”高世代选育群体的养殖净利润和资金回报率明显高于普通团头鲂。试验结果表明,团头鲂“浦江1号”高世代选育群体有良好的生长性能和较高的养殖经济效益。In order to evaluate the culture performance of“Pujiang No.1”blunt snout bream(Megalobrama amblycephala)bred through high-generation selection(F13),a comparative trial was conducted between this population and common blunt snout bream at the 2-year-old and 3-year-old stages.The results showed that the survival rate of“Pujiang No.1”high-generation selected population and the common blunt snout bream at the 2-yearold and 3-year-old stages was above 98%.However,the feed coefficient of the“Pujiang No.1”variety(1.96,2.90)was significantly lower than the common population(2.17,3.34).At the 2-year-old stage,the body mass increment,absolute growth rate and relative growth rate of“Pujiang No.1”variety were significantly higher than those of common population(P<0.05).At the 3-year-old stage,the body mass increment and absolute growth rate of“Pujiang No.1”variety were also significantly higher than the common population,but there was no significant difference in relative growth rate(P>0.05).Furthermore,the aquaculture net profits and capital return on investment of the“Pujiang No.1”high-generation selected population were significantly higher than those of the common blunt snout bream.The results showed that the high-generation breeding population of“Pujiang No.1”still had good growth performance and high economic benefit.

关 键 词：“浦江1号” 生长性能 饲料系数 经济效益 

分 类 号：S917.4[农业科学—水产科学]