Title: Growth and body composition of rohu, Labeo rohita (Hamilton), fed compound diet: winter feeding and rearing to marketable size
Abstract: Journal of Applied IchthyologyVolume 20, Issue 4 p. 265-270 Growth and body composition of rohu, Labeo rohita (Hamilton), fed compound diet: winter feeding and rearing to marketable size M. Afzal Khan, M. Afzal Khan Fish Nutrition Research Laboratory, Department of Zoology, Aligarh Muslim University, AligarhSearch for more papers by this authorA. K. Jafri, A. K. Jafri Fish Nutrition Research Laboratory, Department of Zoology, Aligarh Muslim University, AligarhSearch for more papers by this authorN. K. Chadha, N. K. Chadha Rohtak Centre of Central Institute of Fisheries Education (Deemed University), Lahli, Rohtak, IndiaSearch for more papers by this author M. Afzal Khan, M. Afzal Khan Fish Nutrition Research Laboratory, Department of Zoology, Aligarh Muslim University, AligarhSearch for more papers by this authorA. K. Jafri, A. K. Jafri Fish Nutrition Research Laboratory, Department of Zoology, Aligarh Muslim University, AligarhSearch for more papers by this authorN. K. Chadha, N. K. Chadha Rohtak Centre of Central Institute of Fisheries Education (Deemed University), Lahli, Rohtak, IndiaSearch for more papers by this author First published: 28 July 2004 https://doi.org/10.1111/j.1439-0426.2004.00550.xCitations: 27 Author's address: M. Afzal Khan, Fish Nutrition Research Laboratory, Department of Zoology, Aligarh Muslim University, Aligarh 202 002, India. E-mail: [email protected] Read the full textAboutPDF ToolsRequest permissionExport citationAdd to favoritesTrack citation ShareShare Give accessShare full text accessShare full-text accessPlease review our Terms and Conditions of Use and check box below to share full-text version of article.I have read and accept the Wiley Online Library Terms and Conditions of UseShareable LinkUse the link below to share a full-text version of this article with your friends and colleagues. Learn more.Copy URL Share a linkShare onFacebookTwitterLinkedInRedditWechat Summary A 122-day growth trial was conducted to observe the impact of polyhouse in winter on growth, conversion efficiencies and body composition of fingerling Labeo rohita (7.9 ± 1.1 cm; 4.60 ± 0.18 g). Fish were stocked (1.5 m−2) in polyhouse and outdoor concrete tanks (250 m2) in duplicate and fed a compound diet [35% crude protein (CP)] to apparent satiation twice daily, at 09.00 and 17.00 hours. A natural photoperiod was maintained during the trials. At the end of the trials, polyhouse-reared fish produced significantly (P < 0.01) higher values for weight increment, specific growth rate (SGR %), protein efficiency rate (PER), protein productive value (PPV) and better feed conversion ratio (FCR). Polyhouse-reared fish showed higher (P < 0.01) CP and fat, and lower (P < 0.01) moisture and ash contents in the muscle. In the second part of the study, which also lasted 122 days, polyhouse-reared young L. rohita (21.7 ± 1.3 cm; 127.8 ± 0.69 g) were raised to marketable size in outdoor earthen ponds (500 m2) at a stocking density of 0.37 m−2 to examine the effects of feeding traditional feed mixture and compound diet (30% CP) on growth and body composition of fish. Labeo rohita fed the compound diet showed higher (P < 0.01) values for weight increment, SGR (%), PER and PPV, and better (P < 0.01) FCR than those fed traditional feed. Proximate composition of fish muscle showed higher (P < 0.05) CP and fat, and lower (P < 0.05) moisture and ash contents in fish fed the compound diet. The results suggest that polyhouse may be used successfully to culture L. rohita during winter, and that thereafter the fish may be reared in earthen ponds using the compound diet to obtain better production. Citing Literature Volume20, Issue4August 2004Pages 265-270 RelatedInformation
Publication Year: 2004
Publication Date: 2004-08-01
Language: en
Type: article
Indexed In: ['crossref']
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Cited By Count: 55
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