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2023, Vol: 77, Issue: 1
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Original Article 


Tilapia Nilotica Welfare in Relation to Economic and Managerial Culture

Shereen El. Abdel-Hamid, Sara E. Shahin, Ahmed F. Abouelnaga.

Abstract
The aim of this study was to investigate the impact of different stocking populations of tilapia nilotica fish in their aquaculture on some maintenance behavior, performance, economic values and hormonal concentration levels. On this research, 300 tilapia nilotica fish were distributed into different densities (15, 20,25 and30 fish per aquaria 40*30*80cm) 3 replica for each population and distributed in 70 Litter water in aquaria. 30 fish kept as aspare. After 2 weeks from the start of the experiment and at the end of the experimental periods, blood samples were collected for serum cortisol and growth hormones assay. From the obtained results we found that, The feeding and foraging behavior time and frequency (94.00+3.55 & 144.00+9.79) were improved with stocking density (15 fish in aquaria) and the aggressive behavior was at high level with overcrowding. (26.80+1.83 & 105.00+4.68), on the other hand the surfacing, swimming and resting time were increased with higher stocking rate. The growth hormone was increased with decreased stocking density. The stress indicating hormone (cortisol) was increased with high stocking populations. The return and profit were significantly increase with decreased stocking density.

Key words: Tilapia Nilotica fish, Welfare, behavior, performance stocking density, profitability, economic indices


 
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How to Cite this Article
Pubmed Style

Abdel-Hamid SE, Shahin SE, Abouelnaga AF. Tilapia Nilotica Welfare in Relation to Economic and Managerial Culture. AJVS. 2023; 76(2): 82-89. doi:10.5455/ajvs.124917

Web Style

Abdel-Hamid SE, Shahin SE, Abouelnaga AF. Tilapia Nilotica Welfare in Relation to Economic and Managerial Culture. https://www.alexjvs.com/?mno=124917 [Access: May 02, 2023]. doi:10.5455/ajvs.124917

AMA (American Medical Association) Style

Abdel-Hamid SE, Shahin SE, Abouelnaga AF. Tilapia Nilotica Welfare in Relation to Economic and Managerial Culture. AJVS. 2023; 76(2): 82-89. doi:10.5455/ajvs.124917


Vancouver/ICMJE Style

Abdel-Hamid SE, Shahin SE, Abouelnaga AF. Tilapia Nilotica Welfare in Relation to Economic and Managerial Culture. AJVS. (2023), [cited May 02, 2023]; 76(2): 82-89. doi:10.5455/ajvs.124917


Harvard Style

Abdel-Hamid, S. E., Shahin, . S. E. & Abouelnaga, . A. F. (2023) Tilapia Nilotica Welfare in Relation to Economic and Managerial Culture. AJVS, 76 (2), 82-89. doi:10.5455/ajvs.124917


Turabian Style

Abdel-Hamid, Shereen El., Sara E. Shahin, and Ahmed F. Abouelnaga. 2023. Tilapia Nilotica Welfare in Relation to Economic and Managerial Culture. Alexandria Journal of Veterinary Sciences, 76 (2), 82-89. doi:10.5455/ajvs.124917


Chicago Style

Abdel-Hamid, Shereen El., Sara E. Shahin, and Ahmed F. Abouelnaga. "Tilapia Nilotica Welfare in Relation to Economic and Managerial Culture." Alexandria Journal of Veterinary Sciences 76 (2023), 82-89. doi:10.5455/ajvs.124917


MLA (The Modern Language Association) Style

Abdel-Hamid, Shereen El., Sara E. Shahin, and Ahmed F. Abouelnaga. "Tilapia Nilotica Welfare in Relation to Economic and Managerial Culture." Alexandria Journal of Veterinary Sciences 76.2 (2023), 82-89. Print. doi:10.5455/ajvs.124917


APA (American Psychological Association) Style

Abdel-Hamid, S. E., Shahin, . S. E. & Abouelnaga, . A. F. (2023) Tilapia Nilotica Welfare in Relation to Economic and Managerial Culture. Alexandria Journal of Veterinary Sciences, 76 (2), 82-89. doi:10.5455/ajvs.124917




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