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Energy budget adjustment of sea cucumber Apostichopus japonicus during breeding period
Ru, Xiaoshang1,2; Zhang, Libin1,3; Liu, Shilin1,3; Sun, Jingchun1,3; Yang, Hongsheng1,3
2018-04-01
发表期刊AQUACULTURE RESEARCH
ISSN1355-557X
卷号49期号:4页码:1657-1663
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
DOI10.1111/are.13621
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
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
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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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