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Dietary Zinc and Cobalt Requirements of Fry of Seabass (Lates calcarifer) and Catfish (Clarias batrachus)

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Title: Dietary Zinc and Cobalt Requirements of Fry of Seabass (Lates calcarifer) and Catfish (Clarias batrachus)
Authors: Sapkale, P.H.
Singh, R.K.
Keywords: Lates calcarifer
Clarias batrachus
cobalt
zinc
diet
LC Subject Headings: Fish culture--Israel--Periodicals.
Fish culture--Periodicals.
Aquaculture--Israel--Periodicals.
Aquaculture--Periodicals.
Issue Date: 2011
Publisher: Israeli Journal of Aquaculture - BAMIGDEH
Citation: P.H. Sapkale and R.K. Singh (2011). Dietary Zinc and Cobalt Requirements of Fry of Seabass (Lates calcarifer) and Catfish (Clarias batrachus). The Israeli Journal of Aquaculture - Bamidgeh, 63, 6 pp.
Series/Report no.: The Israeli Journal of Aquaculture - Bamidgeh
Abstract: An 8-week experiment was conducted to determine the cobalt and zinc requirements of fry of seabass (Lates calcarifer) and catfish (Clarias batrachus). Fifteen diets for each fish were formulated with varying concentrations of cobalt and zinc, alone and in combination. The control diet was not supplemented with cobalt or zinc. The diets for L. calcarifer had 45% protein, while the diets for C. batrachus had 30%. The diet that produced the best growth for L. calcarifer (1100%) contained 2.5 mg Co + 45 mg Zn/kg diet and for C. batrachus (1149%) contained 5 mg Co + 30 mg Zn/kg. Growth in the control L. calcarifer was 738% and in the control C. batrachus was 428%. For both species, the food conversion ratios were best in the above diets, 1.17±0.52 for L. calcarifer and 1.40±0.62 for C. batrachus as opposed to 1.89±0.39 and 2.54±0.61 for the respective controls.
Pages/Duration: 6 pages
URI/DOI: http://hdl.handle.net/10524/36288
ISSN: 0792-156X
Appears in Collections:IJA Volume 63, 2011



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