Induction of triploidy in large yellow crocker Pseudosciaena crocea (Richardson, 1846): effects of pressure shocks and growth performance in the first rearing year

doi:10.1111/j.1365-2109.2008.02005.x

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	Induction of triploidy in large yellow crocker Pseudosciaena crocea (Richardson, 1846): effects of pressure shocks and growth performance in the first rearing year
	Xu, Jianhe 1,2; You, Feng 1; Wu, Xiongfei 3; Zhang, Peijun 1; Lin, Yongjian 3; Jiang, Honglei 3; Zheng, Chunjing 3; You, F, Chinese Acad Sci, Inst Oceanol, 7 Nan Hai Rd, Qingdao 266071, Peoples R China
	2008-09-22
发表期刊	AQUACULTURE RESEARCH
ISSN	1355-557X
卷号	39 期号:13 页码:1369-1376
文章类型	Article
摘要	The precociously sexual maturation in large yellow crocker Pseudosciaena crocea has become a serious problem. In an attempt to solve this problem, the production of sterile triploids could be an effective strategy. In this study, triploid P. crocea was obtained by subjecting fertilized eggs to pressure shock. Flow-cytometry analysis was used to assess ploidy level. In terms of triploid rate and hatching rate, the optimal conditions of pressure shock for triploidy induction in P. crocea were 7500 psi for 3 min shock at 3 min after fertilization at 20 degrees C. With the application of these parameters, 100% triploid fish were produced. During the first rearing year, triploid P. crocea had a similar growth performance compared with its diploid counterpart before the age of 8 months and showed a significant advantage at the age of 10 and 12 months in body weight and body length (P < 0.05). At the age of 12 months, the carcass weight of triploids was markedly higher than that of diploid control, and gonadal somatic index was significantly lower than that of their diploid control. During the first rearing year, survival in triploid group was 76.44%, inferior to its diploid control (83.21%).; The precociously sexual maturation in large yellow crocker Pseudosciaena crocea has become a serious problem. In an attempt to solve this problem, the production of sterile triploids could be an effective strategy. In this study, triploid P. crocea was obtained by subjecting fertilized eggs to pressure shock. Flow-cytometry analysis was used to assess ploidy level. In terms of triploid rate and hatching rate, the optimal conditions of pressure shock for triploidy induction in P. crocea were 7500 psi for 3 min shock at 3 min after fertilization at 20 degrees C. With the application of these parameters, 100% triploid fish were produced. During the first rearing year, triploid P. crocea had a similar growth performance compared with its diploid counterpart before the age of 8 months and showed a significant advantage at the age of 10 and 12 months in body weight and body length (P < 0.05). At the age of 12 months, the carcass weight of triploids was markedly higher than that of diploid control, and gonadal somatic index was significantly lower than that of their diploid control. During the first rearing year, survival in triploid group was 76.44%, inferior to its diploid control (83.21%).
关键词	Pseudosciaena Crocea Triploidy Induction Pressure Shock Growth Performance Survival
学科领域	Fisheries
DOI	10.1111/j.1365-2109.2008.02005.x
URL	查看原文
收录类别	SCI
语种	英语
WOS记录号	WOS:000259307400003
引用统计	被引频次：13[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.qdio.ac.cn/handle/337002/1699
专题	实验海洋生物学重点实验室
通讯作者	You, F, Chinese Acad Sci, Inst Oceanol, 7 Nan Hai Rd, Qingdao 266071, Peoples R China
作者单位	1.Chinese Acad Sci, Inst Oceanol, Qingdao 266071, Peoples R China 2.Huaihai Inst Technol, Key Lab Marine Biotechnol Jiangsu Prov, Lianyungang, Peoples R China 3.Marine Fisheries Res Inst Ningbo, Ningbo, Peoples R China
第一作者单位	中国科学院海洋研究所
推荐引用方式 GB/T 7714	Xu, Jianhe,You, Feng,Wu, Xiongfei,et al. Induction of triploidy in large yellow crocker Pseudosciaena crocea (Richardson, 1846): effects of pressure shocks and growth performance in the first rearing year[J]. AQUACULTURE RESEARCH,2008,39(13):1369-1376.
APA	Xu, Jianhe.,You, Feng.,Wu, Xiongfei.,Zhang, Peijun.,Lin, Yongjian.,...&You, F, Chinese Acad Sci, Inst Oceanol, 7 Nan Hai Rd, Qingdao 266071, Peoples R China.(2008).Induction of triploidy in large yellow crocker Pseudosciaena crocea (Richardson, 1846): effects of pressure shocks and growth performance in the first rearing year.AQUACULTURE RESEARCH,39(13),1369-1376.
MLA	Xu, Jianhe,et al."Induction of triploidy in large yellow crocker Pseudosciaena crocea (Richardson, 1846): effects of pressure shocks and growth performance in the first rearing year".AQUACULTURE RESEARCH 39.13(2008):1369-1376.

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