Energy budget adjustment of sea cucumber Apostichopus japonicus during breeding period

doi:10.1111/are.13621

	Energy budget adjustment of sea cucumber Apostichopus japonicus during breeding period
	Ru, Xiaoshang 1; Zhang, Libin 2; Liu, Shilin 2; Sun, Jingchun2 ; Yang, Hongsheng2
	2018-04-01
发表期刊	AQUACULTURE RESEARCH
ISSN	1355-557X
卷号	49 期号:4 页码:1657-1663
文章类型	Article
摘要	Reproductive success is unpredictable for many cultured echinoderms. And cost of reproduction plays an important role in animal life-history. Therefore, understanding cost of reproduction contributes to improving breeding techniques during broodstock rearing in aquaculture. In this study, energetic costs during breeding were explored in the sea cucumber, Apostichopus japonicus, an important aquaculture species in China, Japan and South Korea. The food intake, digestive functions and energy budget patterns were estimated at different breeding stages. Unexpectedly, in the growing gonad phase of the sea cucumber lifecycle, animals showed a decline in feed consumption (from 4.49 to 2.6 g ind(-1) day(-1)), ingestion rate (from 0.4 to 0.13 g g(-1) day(-1)) and apparent digestive rate (from 14.73% to 10.92%), resulting in a reduced energy input. In addition, the increased energy investment in reproduction (from 1.76% to 15.61%) resulted in a decrease in energy allocated to soma growth (from 17.1% to 5.64%) and self-maintenance (from 47.82% to 34.67%). These results suggest that reproduction impairs energy acquisition ability in breeding A. japonicus. And broodstock can adapt energy shortage by internal adjustment of energy allocation strategy.
关键词	cost of reproduction energy budget reproductive success sea cucumber
学科领域	Fisheries
DOI	10.1111/are.13621
收录类别	SCIE
语种	英语
资助项目	National Natural Science Foundation of China[41676136]; Nature Science Foundation of Shandong province[ZR2016CQ04]; Agricultural Seed Project of Shandong Province; Strategic Priority Research Program of Chinese Academy of Sciences[XDA11020703]; Taishan Scholars Program (Distinguished Taishan Scholars)
WOS研究方向	Fisheries
WOS类目	Fisheries
WOS记录号	WOS:000427003200029
出版者	WILEY
引用统计	被引频次：11[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/337002/154691
专题	海洋生态与环境科学重点实验室
作者单位	1.Chinese Acad Sci, Inst Oceanol, CAS Key Lab Marine Ecol & Environm Sci, Qingdao, Peoples R China 2.Univ Chinese Acad Sci, Beijing, Peoples R China 3.Qingdao Natl Lab Marine Sci & Technol, Lab Marine Ecol & Environm Sci, Qingdao, 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	Ru, Xiaoshang,Zhang, Libin,Liu, Shilin,et al. Energy budget adjustment of sea cucumber Apostichopus japonicus during breeding period[J]. AQUACULTURE RESEARCH,2018,49(4):1657-1663.
APA	Ru, Xiaoshang,Zhang, Libin,Liu, Shilin,Sun, Jingchun,&Yang, Hongsheng.(2018).Energy budget adjustment of sea cucumber Apostichopus japonicus during breeding period.AQUACULTURE RESEARCH,49(4),1657-1663.
MLA	Ru, Xiaoshang,et al."Energy budget adjustment of sea cucumber Apostichopus japonicus during breeding period".AQUACULTURE RESEARCH 49.4(2018):1657-1663.

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