厦门大学学报（自然科学版）2017，Vol.56Issue(2)：188-193,6.DOI:10.6043/j.issn.0438-0479.201606033
凡纳滨对虾2个选育群体的生长、消化、免疫酶活性及其抗白斑综合症病毒性能
Growth Performance,Digestive Enzyme,Innate Immunity and WSSV-resistant Activity in Litopenaeus vannamei of Two Selective Breeding Groups
摘要
Abstract
In this paper,the growth performance,the activities of digestive enzymes,innate immunity and WSSV-resistance of the two selective groups (A and B) and no-selective shrimp were studied by rearing 102 d in the same outdoor environments and management conditions,respectively.The results showed that group B exhibited a strong growth superiority at the early stage (<40 d),and the body length and body weight of the shrimps were group B>group A> no-selective shrimp after 40 d (p<0.05).The harvest body weight,specific growth rate and survival rate from group A and group B increased by 29.11% and 46.81% (p<0.05),6.80% and 9.71% (p<0.05),33.97% and 20.25% (p<0.05),respectively than those of no-selective shrimp.However,the feed conversion rate decreased by 9.88% and 11.73% (p<0.05) than that of no-selective shrimp.In addition,compared with no-selective shrimp,the activities of hepatopancreatic amylase and protease of two selective groups increased by 12.64% and 29.49%,13.47% and 24.07%,respectively,which showed significant differences (p<0.05) except for lipase.The immune enzyme activities of the two selective groups were significantly higher than that of no-selective shrimp except for GSH-S and GR.Moreover,after infection with WSSV,the median lethal time of the two selective groups were delayed by 28.77 h and 31.64 h than that of no-selective shrimp,which all died in 138.56 h.The survival rate of the two selective groups was 6.67% and 2.22%,respectively by the end of infection experiment.The indexes of WSSV-resistance showed group A>group B>no-selective shrimp after WSSV challenge(p<0.05).In conclusion,the growth rate and WSSV-resistant activity of the selective groups A and B were significantly higher than that of no-selective shrimp after successive generations of directional selection,in which the group A exhibited powerful capability of WSSV resistance,and group B showed higher growth rate.关键词
凡纳滨对虾/生长/消化/免疫因子/抗白斑综合症病毒性能Key words
Litopenaeus vannamei/growth/digestion/immune parameters/WSSV-resistant activity分类
农业科技引用本文复制引用
黄永春,郑伟刚,陈辉辉,黎中宝,李文静,张哲,杨章武,游伟伟..凡纳滨对虾2个选育群体的生长、消化、免疫酶活性及其抗白斑综合症病毒性能[J].厦门大学学报（自然科学版）,2017,56(2):188-193,6.基金项目
福建省科技厅重大项目(2009N3011,2017N5012) （2009N3011,2017N5012）
厦门市海洋经济创新发展区域示范项目(13PZY001SF25) （13PZY001SF25）
