摘要
为探明白壳色中华绒螯蟹(Eriocheir sinensis)新品系的繁殖性能,在室内养殖桶中比较了中华绒螯蟹白壳和常规绿壳品系繁殖性能和原肠胚期胚胎质量。结果显示:1)白壳组雌体交配后抱卵速度、成活率和抱卵率均高于绿壳组,但白壳组的抱卵量、生殖力和生殖指数均略低于绿壳组,两组雌体所产胚胎的卵径、单个卵湿质量和干质量也无显著性差异(P>0.05)。2)两组胚胎干样色泽参数均无显著性差异,且胚胎中总类胡萝卜素、玉米黄素、角黄素以及β-胡萝卜素含量接近(P>0.05);但白壳组胚胎干样中虾青素和叶黄素含量显著低于绿壳组(P<0.05)。3)白壳和绿壳组胚胎中水分、脂肪和蛋白质量分数接近,无显著性差异(P>0.05);白壳组胚胎中顺-9-十八碳一烯酸(C18:1 n-9)质量分数显著高于绿壳组(P<0.05),其余脂肪酸质量分数均无显著性差异(P>0.05)。结果表明,中华绒螯蟹白壳品系雌体的抱卵速度快于绿壳品系,整体上白壳和绿壳品系具有相似的繁殖性能和胚胎质量。
To investigate the reproductive performance of a new white carapace strain of Chinese mitten crab(Eriocheir sinensis),we compared the breeding experiments and gastral embryo quality of white and green carapace strains in indoor tanks.The results show that the ovigerous rate,survival rate and spawning rate of the white carapace strain were higher than those of the green carapace strain,but the egg production,fecundity and reproductive effort of the white carapace strain were slightly lower than those of the green strain.There were no significant differences in the egg diameter,wet and dry mass of single egg between the two strains(P>0.05).In addition,no significant differences were found in the color parameters in dried eggs(P<0.05)and the contents of total carotenoids,zeaxanthin,canthaxanthin andβ-carotene in both strains were similar(P>0.05),but the con-tents of astaxanthin and lutein in dried eggs in the white carapace strain were significantly lower than those in the green cara-pace strain(P<0.05).Besides,the eggs of both strains had similar moisture,total lipid and crude protein contents(P>0.05).As for fatty acid composition of eggs,the percentage of C18:1 n-9 in the white carapace strain was significantly higher than that in the green carapace strain(P<0.05),but there were no significant differences in other fatty acid contents(P>0.05).In conclusion,the female ovigerous rate of the white carapace strain is faster than that of the green carapace strain,but the reproductive per-formance,eggs color and proximate composition are similar.
作者
张冬冬
范陈伟
姜晓东
陈瑜
吴旭干
ZHANG Dongdong;FAN Chenwei;JIANG Xiaodong;CHEN Yu;WU Xugan(Shanghai Ocean University/Key Laboratory of Freshwater Aquatic Genetic Resources,Ministry of Agriculture and Rural Affairs,Shanghai 201306,China;Sheyang Chenyu Aquacultural Technology Co.,Ltd.,Yancheng 224300,China;Shanghai Ocean University/Shanghai Engineering Research Center of Aquaculture/National Demonstration Centre for Experimental Fisheries Science Education,Shanghai 201306,China)
出处
《南方水产科学》
CAS
CSCD
北大核心
2022年第3期102-110,共9页
South China Fisheries Science
基金
国家重点研发计划项目(2018YFD0900103,2018YFD0900603)
财政部和农业农村部国家现代农业产业技术体系资助(CARS-48)
江苏金坛区农业农村局科技项目(JTNL2019001)
江苏省苏北科技专项(SZ-YC202116)。
关键词
中华绒螯蟹
白壳品系
生殖性能
胚胎质量
类胡萝卜素
Eriocheir sinensis
White carapace strain
Reproductive performance
Embryo quality
Carotenoids
