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Prof. Magdy Abd El-Hamied Abdel-Rahman Soltan :: Publications:

Title:
Effect of stocking rate, organic fertilization and supplementary feed on growth performance, carcass and chemical analysis of Nile tilapia, Oreochromis niloticus
Authors: Soltan, M. A., Abdel-Hakim, N. F. and Bakeer, M. N.
Year: 1999
Keywords: Not Available
Journal: Not Available
Volume: Not Available
Issue: Not Available
Pages: Not Available
Publisher: Not Available
Local/International: Local
Paper Link: Not Available
Full paper Magdy Abd El-Hamied Abdel-Rahman Soltan_3.pdf
Supplementary materials Not Available
Abstract:

This study was carried out to investigate the effect of stocking rate of tilpaia and fertilization rate as well as artificial feeding on the growth performance, carcass traits and whole body analysis of Nile tilapia O. niloticus throughout 105 days growth period. Fish were stocked in six earthen ponds each of a total area of 0.24 feddan representing two stocking densities (1000 and 2000 fish per pond), within each stocking density two manuring rates (100 and 150 kg poultry litter/pond) and one artificial feeding (diet containing 25% protein) were tested. At the experimental start the initial weight of the experimental fish was 16.7 g on the average. Results obtained can be summerized on the following: - Treatments applied had significant effect on final body weight, body length, body width and body depth for the favor of the lower stocking density and artificial feeding. - Feeding tilapia on artificial diet increased total production at harvesting after 105 day compared with the manuring at both rates tested, however increasing the rate of manuring tended to increase the total yield. - Increasing the fish stocking density resulted in an increase in the total fish yield in all treatments tested. - Treatments applied released significant effects on carcass traits tested. - Whole body protein, fat and ash contents were influenced significantly by the treatments applied, however moisture contents in the whole body were not significantly affected. - The same trend was noticed in flesh contents of moisture, protein, fat and ash.

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