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Effects of Salinity on Growth and Energy Budget of Juvenile Cobia, Rachycentron canadum
Chen, G; Wang, ZL; Wu, ZH; Gu, BH
2009
发表期刊JOURNAL OF THE WORLD AQUACULTURE SOCIETY
ISSN0893-8849
卷号40期号:3页码:374-382
摘要The effects of salinity on the growth and energy budget of juvenile cobia, Rachycentron canadum, were evaluated. Triplicate tanks with ten fish per tank (initial weight 17.58 +/- 0.26 g/fish, mean +/- SD) reared at salinities of 5, 10, 15, 20, 25, 30, and 35 ppt were fed with fresh squid to satiety for 15 d. Results indicated that there were no significant differences in daily ration level in wet weight (RLw), dry weight (RLd), and energy (RLe) of the fish. There were also no significant variations in daily fecal production (f(e)) and apparent digestibility coefficient of energy (ADC(e)) among salinity treatments. Specific growth rates (SGRs) in wet weight (SGR(w)), dry weight (SGR(d)), and energy (SGR(e)) showed domed curves relative to salinity. Quadratic regression analyses of SGR(w), SGR(d), and SGR(e) against salinity indicated that the optimal salinity for maximal growth of juvenile cobia was 29.9, 29.9, and 28.5 ppt, respectively. Similar to the trend of SGR, food conversion efficiency for juvenile cobia in wet weight (FCEw), dry weight (FCEd), and energy (FCEe) increased with the increases in salinity, maximized at 30 ppt, and then decreased when salinity reached 35 ppt.
部门归属[Chen, Gang; Wang, Zhongliang; Wu, Zaohe; Gu, Binhe] Guangdong Ocean Univ, Coll Fisheries, Dept Aquaculture, Zhanjiang 524025, Guangdong, Peoples R China; [Wang, Zhongliang] Chinese Acad Sci, Grad Sch, Beijing 100049, Peoples R China; [Wang, Zhongliang] Chinese Acad Sci, S China Sea Inst Oceanog, Guangzhou 510301, Guangdong, Peoples R China; [Wang, Zhongliang; Wu, Zaohe] Guangdong Key Lab Pathogen Biol & Epidemiol Aquat, Zhanjiang, Peoples R China; [Wang, Zhongliang; Wu, Zaohe] Guangdong Key Lab Control Dis Aquat Econ Anim, Zhanjiang 524025, Peoples R China
学科领域Fisheries
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收录类别sci
资助项目海洋生物
WOS记录号WOS:000266601100006
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文献类型期刊论文
条目标识符http://ir.scsio.ac.cn/handle/344004/5392
专题海洋生物
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GB/T 7714
Chen, G,Wang, ZL,Wu, ZH,et al. Effects of Salinity on Growth and Energy Budget of Juvenile Cobia, Rachycentron canadum[J]. JOURNAL OF THE WORLD AQUACULTURE SOCIETY,2009,40(3):374-382.
APA Chen, G,Wang, ZL,Wu, ZH,&Gu, BH.(2009).Effects of Salinity on Growth and Energy Budget of Juvenile Cobia, Rachycentron canadum.JOURNAL OF THE WORLD AQUACULTURE SOCIETY,40(3),374-382.
MLA Chen, G,et al."Effects of Salinity on Growth and Energy Budget of Juvenile Cobia, Rachycentron canadum".JOURNAL OF THE WORLD AQUACULTURE SOCIETY 40.3(2009):374-382.
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