Evaluating the influence of different water sources on water quality, survival and growth rates of Nile tilapia (Oreochomis niloticus) larvae in tilapia hatcheries
Ali, A., Moustafa, Y., El-Said, S. (2020). Evaluating the influence of different water sources on water quality, survival and growth rates of Nile tilapia (Oreochomis niloticus) larvae in tilapia hatcheries. EKB Journal Management System, 10(1), 45-64. doi: 10.21608/eja.2020.25601.1018
Ahmed Ali; Yaser T. A. Moustafa; Soha M. A. El-Said. "Evaluating the influence of different water sources on water quality, survival and growth rates of Nile tilapia (Oreochomis niloticus) larvae in tilapia hatcheries". EKB Journal Management System, 10, 1, 2020, 45-64. doi: 10.21608/eja.2020.25601.1018
Ali, A., Moustafa, Y., El-Said, S. (2020). 'Evaluating the influence of different water sources on water quality, survival and growth rates of Nile tilapia (Oreochomis niloticus) larvae in tilapia hatcheries', EKB Journal Management System, 10(1), pp. 45-64. doi: 10.21608/eja.2020.25601.1018
Ali, A., Moustafa, Y., El-Said, S. Evaluating the influence of different water sources on water quality, survival and growth rates of Nile tilapia (Oreochomis niloticus) larvae in tilapia hatcheries. EKB Journal Management System, 2020; 10(1): 45-64. doi: 10.21608/eja.2020.25601.1018

Evaluating the influence of different water sources on water quality, survival and growth rates of Nile tilapia (Oreochomis niloticus) larvae in tilapia hatcheries

Egyptian Journal for Aquaculture
Article 3, Volume 10, Issue 1, March 2020, Page 45-64  XML PDF (376.21 K)
Document Type: Research article
DOI: 10.21608/eja.2020.25601.1018
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Authors
Ahmed Ali email 1; Yaser T. A. Moustafaorcid 2; Soha M. A. El-Said3
1Fish physiology and hatchery department, Central laboratory for aquaculture research, Agriculture research center, Egypt
2Limnology department, Central Laboratory for Aquaculture Research, Agricultural Research Center, Egypt
3Liminology Department, Central Laboratory for Aquaculture Research, Agriculture Research Center ARC, Egypt
Abstract
This study was conducted to evaluate the effect of different water sources on survival rate and growth performance of Nile tilapia (O. niloticus) larvae during nursing period. Larvae (post yolk sac stage) were stocked at 50000 / pond and fed 48 % crude protein diet 6 times daily at rates of 35, 26 and 18% of their weight in the successive three weeks, respectively. Nine concrete ponds assigned for 3 treatments, triplicates in each. The ground water and agricultural drainage water were the water sources in the first and third treatments, respectively, while the second treatment received a 1: 1 mixture of the two water sources. Water samples, for some physico-chemical analysis, were monitored before pumping water into the ponds and within the ponds at each fry harvest. The experiment lasted for 21 days and replicated four times. At the end of each rearing period, fry number was estimated in each pond; the survival and growth rates were calculated.
The results showed that the significantly highest survival and growth rates were obtained in the mixed water treatment. Mixing agricultural drainage water with ground water results the most suitable water quality for Nile tilapia performance than each of these sources separately. Generally, water quality parameters for the studied sources at the end of each rearing period were within the acceptable range for fish culture.
Keywords
Nile tilapia; water quality parameters; Oreochromis niloticus; Agricultural drainage water; ground water
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