中国水产科学2017，Vol.24Issue(4)：727-737,11.DOI:10.3724/SP.J.1118.2017.16307
牙鲆抗淋巴囊肿病家系选育及生长和抗病性能分析
Analysis of growth and lymphocystis disease resistance of selected breeding families of Japanese flounder (Paralichthys olivaceus)
摘要
Abstract
Lymphocystis disease is a viral infection caused by lymphocystis disease virus, which has serious im-pacts on the aquaculture industry, resulting in heavy losses. In order to select new varieties of Japanese flounder (Paralichthys olivaceus) resistant to lymphocystis disease, eight experimental groups and one control group were established in 2015. The exposure experiment was conducted on one farm with high incidence of lymphocystis disease, and the protection rate of each group was determined. At the same time, the growth traits of each group at 120 d, 180 d, 240 d, and 300 d were measured and compared. The results showed that there were different growth patterns for each group in different periods, showing inconsistent growth patterns among groups. However, in all the groups, the growth performance of group G2 was always ranked the highest for each period. The results also showed that the disease resistance protection rate of the control group was only 59.57%, while the disease resis-tance protection rate of all the tested groups was above 60%, reaching up to 97.20% for group G2. From the over-all analysis, there were no significant differences in the body weight and body length between the disease resistant or sensitive individuals at 390 d of age. The body weight and body length were positively correlated with disease resistance protection rate, while their effects were not significant (P>0.05). However, the mean body weight of disease-resistant individuals in group G2 was significantly higher than that of disease-sensitive individuals (P<0.05). Based on the group G2, it is expected that a new variety of fast-growing lymphocystis disease-resistant Japanese flounder could be developed.关键词
牙鲆/淋巴囊肿病/抗病保护率/生长Key words
Paralichthys olivaceus/lymphocystis disease/disease resistance protection rate/growth分类
农业科技引用本文复制引用
侯吉伦,刘海金,王玉芬,王桂兴,张晓彦,宋立民,孙朝徽,赵雅贤,任建功,姜秀凤,司飞..牙鲆抗淋巴囊肿病家系选育及生长和抗病性能分析[J].中国水产科学,2017,24(4):727-737,11.基金项目
现代农业产业技术体系建设专项资金项目(CARS-50-G2,CARS-50-Z03) （CARS-50-G2,CARS-50-Z03）
中国水产科学研究院基本科研业务费资助项目(2016HY-ZD0202). （2016HY-ZD0202）
