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Growth performance of Nile tilapia [Oreochromis niloticus] fingerlings raised in an earthen pond

100%

Bahnasawy M. H., Abdel-Baky T. E., Abd-Allah G. A.

Archives of Polish Fisheries

2003

tom 11

nr 2

An experiment was conducted to evaluate the growth performance of Nile tilapia fed with supplemental feed (25% crude protein) at 50% satiation. Juvenile Nile tilapia (average weight 6.4 g) were stocked in an earthen pond at 2.4 fish m⁻² . The pond was fertilized twice weekly with a mixture of superphosphate and urea fertilizer (68 kg ha 1⁻¹). The annual fish yield was 6880 kg ha⁻¹. The mean weight of harvested fish ranged from 110 to 250 g. The food conversion ratio (FCR) was 0.82, the average daily weight gain (ADG) was 0.9 g d⁻¹ and the specific growth rate was 1.55 % d⁻¹. This study demonstrated that 50% satiation feeding is an effective feeding rate for improving the production of Nile tilapia cultured in a fertilized, freshwater earthen pond.

Ograniczanie wyników

1 Archives of Polish Fisheries

1 Abd-Allah G. A.

1 Abdel-Baky T. E.

1 Bahnasawy M. H.

1 2003

Wyniki wyszukiwania

Growth performance of Nile tilapia [Oreochromis niloticus] fingerlings raised in an earthen pond