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	Influence of dietary protein levels on growth, digestibility, digestive enzyme activity and stress tolerance in white-leg shrimp, litopenaeus vannamei (boone, 1931), reared in high-density tank trials
	Xia, Sudong2; Li, Yong1,2; Wang, Wenqi3; Rajkumar, Mayalagu4; Vasagam, Kumaravel Paramasivam Kumaraguru5; Wang, Hua2
刊名	Aquaculture research
	2010-11-01
卷号	41期号:12页码:1845-1854
关键词	Litopenaeus vannamei Dietary protein Growth Digestive enzymes Digestibility
ISSN号	1355-557X
DOI	10.1111/j.1365-2109.2010.02585.x
通讯作者	Li, yong(lyzhy678@hotmail.com)
英文摘要	The effects of dietary protein (dp) levels on the growth, digestibility, digestive enzyme activity and stress tolerance of litopenaeus vannamei (boone, 1931) were investigated in high-density (375 m(-3)) tank trials. shrimps (6.2 +/- 0.2 g) were fed diets with five different protein levels (31%, 35%, 39%, 43% and 47%) for 60 days. the results showed that variations in dp significantly (p<0.05) influenced the growth performance, digestibility, enzyme activity and their ability to tolerate stress. weight gain showed a linear increase in relation to crude protein (cp) up to 43% and showed a slight decrease with a further increase to 47%. feed conversion ratio was observed to be the lowest in cp 43%: 2.53. a higher protein efficiency ratio was observed with the low-protein diet cp31 (1.07); however, it was not significantly different from the rest of the dietary treatments. protein digestibility was the highest (75.71%) in cp47 and the lowest (71.94%) in cp31. protease activity ranged between 63.7 and 70.2 (u protein(-1)), and showed a positive correlation with the dp levels. shrimp fed cp43 well tolerated a sudden decline in salinity and survived for 548.3 min in fresh water. observations from this study indicate that a dp level around 43% could be optimum for l. vannamei in high-density culture systems in the absence of natural productivity.
WOS关键词	APPARENT DIGESTIBILITY ; FEED INGREDIENTS ; BRACKISH-WATER ; FOOD ; NUTRIENT ; SURVIVAL ; WEIGHT ; PRAWNS ; PONDS
WOS研究方向	Fisheries
WOS类目	Fisheries
语种	英语
出版者	WILEY-BLACKWELL
WOS记录号	WOS:000283946200013
内容类型	期刊论文
URI标识	http://www.corc.org.cn/handle/1471x/2411707
专题	中国科学院大学
通讯作者	Li, Yong
作者单位	1.Chinese Acad Sci, Inst Oceanol, Res & Dev Ctr Marine Biotechnol, Qingdao 266071, Peoples R China 2.Chinese Acad Sci, Grad Univ, Beijing, Peoples R China 3.Qingdao Agr Univ, Dept Anim Sci, Qingdao, Peoples R China 4.Annamalai Univ, Ctr Adv Study Marine Biol, Parangipettai, Tamil Nadu, India 5.VO Chidambaram Coll, Dept Zool Res, Tuticorin, Tamil Nadu, India
推荐引用方式 GB/T 7714	Xia, Sudong,Li, Yong,Wang, Wenqi,et al. Influence of dietary protein levels on growth, digestibility, digestive enzyme activity and stress tolerance in white-leg shrimp, litopenaeus vannamei (boone, 1931), reared in high-density tank trials[J]. Aquaculture research,2010,41(12):1845-1854.
APA	Xia, Sudong,Li, Yong,Wang, Wenqi,Rajkumar, Mayalagu,Vasagam, Kumaravel Paramasivam Kumaraguru,&Wang, Hua.(2010).Influence of dietary protein levels on growth, digestibility, digestive enzyme activity and stress tolerance in white-leg shrimp, litopenaeus vannamei (boone, 1931), reared in high-density tank trials.Aquaculture research,41(12),1845-1854.
MLA	Xia, Sudong,et al."Influence of dietary protein levels on growth, digestibility, digestive enzyme activity and stress tolerance in white-leg shrimp, litopenaeus vannamei (boone, 1931), reared in high-density tank trials".Aquaculture research 41.12(2010):1845-1854.

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