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Please use this identifier to cite or link to this item: http://ntour.ntou.edu.tw:8080/ir/handle/987654321/32761

Title: The effects of replacement of soybean meal by shrimp shell meal on the growth of hybrid tilapia (Oreochromis niloticus x Oreochromis aureus) reared under brackish water
Authors: Jean Fall;Yi-Theng Tseng;Diegane Ndong;Shin-Shyn Sheen
Contributors: NTOU:Department of Aquaculture
Keywords: Hybrid tilapia;Oreochromis niloticsu x Oreochromis aureus;soybean meal;shrimp shell meal;brackishwater
Date: 2012-04
Issue Date: 2012-06-18T06:20:32Z
Publisher: International Journal of Fisheries and Aquaculture
Abstract: Abstract:To evaluate the effects of complete replacement of soybean meal (SB) protein by shirmp shell meal (SSM) on the grwoth perfromance of hybrid tilapis (O. niloticus x O. aureus), five approximately isoenergetic and isonitrogenous (30% crude protein) diets containing 0, 33, 50, 67 and 100% SSM were fed to triplicate groups of ten fry with an initial mean weight 1.54 + 0.03 g/fish under brackish water (15ppt) for sity (60) days. Fish fed diet containing 100% SSM exhibited the lowest specific growth rate (SGR). There was no significant difference of SGR in the fish fed fed 0, 33, 50 and 67% SSM. The fish fed 0, 33, and 50% SSM had better feed converstion (rate (FCR) value than those fish fed with 67 and 100% SSM supplement. The survival of juveniles ranged from 97 to 100 %, being 97% for 0, 50, 67% SSM and 100% for 33 and 100% SSM. The weight gain was highest in fish fed diet without SSM, intermediate in fish fed diets with 33, 50 and 67% SSM, and lowest in fish fed diet with 100% SSM. The highest body protein content was observed in fish fed diet with 50 and 67% SSM compared to the initial fish. The lowest body protein content was obtained with the fish fed diet with 100% SSM. The tilapia fed diet containing 33 and 67 % SSM had the highest body lipid content compared to the initial fish. There were no significant differences in body lipid content among the fish fed diet with 0, 50, and 100% SSM. No difference in body ash content was observed among treatments.
Relation: 4(5), pp.85-91
URI: http://ntour.ntou.edu.tw/handle/987654321/32761
Appears in Collections:[水產養殖學系] 期刊論文

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