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Abdel-Hakim, N., Lashin, M., Alazab, A., Radwan, I., Abdelhamid, A. (2016). EFFECT OF DIETARY CRUDE PROTEIN LEVEL AND STOCKING RATE OF MONOSEX ALL MALE NILE TILAPIA REARED UNDER RECIRCULATING AQUACULTURE SYSTEM. Journal of Animal and Poultry Production, 7(1), 1-13. doi: 10.21608/jappmu.2016.48254
N. F. Abdel-Hakim; M. E. Lashin; A. A. Alazab; I. A. Radwan; A. F.B. Abdelhamid. "EFFECT OF DIETARY CRUDE PROTEIN LEVEL AND STOCKING RATE OF MONOSEX ALL MALE NILE TILAPIA REARED UNDER RECIRCULATING AQUACULTURE SYSTEM". Journal of Animal and Poultry Production, 7, 1, 2016, 1-13. doi: 10.21608/jappmu.2016.48254
Abdel-Hakim, N., Lashin, M., Alazab, A., Radwan, I., Abdelhamid, A. (2016). 'EFFECT OF DIETARY CRUDE PROTEIN LEVEL AND STOCKING RATE OF MONOSEX ALL MALE NILE TILAPIA REARED UNDER RECIRCULATING AQUACULTURE SYSTEM', Journal of Animal and Poultry Production, 7(1), pp. 1-13. doi: 10.21608/jappmu.2016.48254
Abdel-Hakim, N., Lashin, M., Alazab, A., Radwan, I., Abdelhamid, A. EFFECT OF DIETARY CRUDE PROTEIN LEVEL AND STOCKING RATE OF MONOSEX ALL MALE NILE TILAPIA REARED UNDER RECIRCULATING AQUACULTURE SYSTEM. Journal of Animal and Poultry Production, 2016; 7(1): 1-13. doi: 10.21608/jappmu.2016.48254

EFFECT OF DIETARY CRUDE PROTEIN LEVEL AND STOCKING RATE OF MONOSEX ALL MALE NILE TILAPIA REARED UNDER RECIRCULATING AQUACULTURE SYSTEM

Article 1, Volume 7, Issue 1, January 2016, Page 1-13  XML PDF (556.04 K)
Document Type: Original Article
DOI: 10.21608/jappmu.2016.48254
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Authors
N. F. Abdel-Hakim1; M. E. Lashin1; A. A. Alazab1; I. A. Radwan2; A. F.B. Abdelhamid1
1Anim. Prod. Dept., Fac. of Agric., Al-Azhar Univ., Cairo, Egypt.
2Egyptian Aquaculture Centre, Kafr El-Sheikh, Egypt.
Abstract
To recognize the best dietary crude protein (CP) percentage and stocking rate (SR) of monosex Nile tilapia under recirculating aquaculture system, two CP levels (25 & 32 %) and two SR (140 & 210 / m3) were used for 168 days. The obtained results revealed that feeding fish 32 % CP-diet at SR of 140 fish / m3 resulted in the best final bodyweight, average daily gain, specific growth rate, feed conversion, survival, energy utilization, and return. Whereas, 32 % CP at 210 fish / m3 was responsible for best protein productive value, body weight (with lowest inedible parts percentage), carcass protein percent (with lowest fat %), and productivity / m3. So, it could recommend feeding Nile tilapia (under similar conditions to those of the present experiment) 32 % CP-diet and stocking rate of 140 fish / m3.
Keywords
Nile tilapia; monosex; crude protein; stocking rate; Aquaculture; recirculating system
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