Evaluation of stocking density on water quality parameters in rearing of Beluga (Huso huso)

The potential effects of stocking densities (1, 2, 4, 6 and 8kg/m-2) of Beluga (Huso huso) was investigated on water quality and growth factors of the fish. Feed was offered three times daily using a commercial diet to the juvenile fish at the average initial weight of 93.13±1.04g (±SE) for a p...

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Main Author: S. Rafatnezhad; B. Falahatkar
Format: Article
Language:fas
Published: Iranian Fisheries Research Organization 2011-01-01
Series:‬‭Majallah-i ̒Ilmī-i Shīlāt-i Īrān
Subjects:
Online Access:http://isfj.areo.ir/article_109985_en.html
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author S. Rafatnezhad; B. Falahatkar
author_facet S. Rafatnezhad; B. Falahatkar
author_sort S. Rafatnezhad; B. Falahatkar
collection DOAJ
description The potential effects of stocking densities (1, 2, 4, 6 and 8kg/m-2) of Beluga (Huso huso) was investigated on water quality and growth factors of the fish. Feed was offered three times daily using a commercial diet to the juvenile fish at the average initial weight of 93.13±1.04g (±SE) for a period of 8 weeks. The final biomass was 4.0, 6.5, 11.0, 14.5, 17.1kg/m-2 from the lowest to the highest densities, respectively. At the termination of the experiment, the mean weight reached 362.4±6.9, 319.7±2.1, 267±9.2, 242.1±6.2 and 211.1±4.1 in densities of 1 to 8kg/m-2, respectively. Results of the present study showed that growth parameters, including: Final weight (W), body weight daily (BWD), weight gain (WG), condition factor (CF) and feed efficiency (FE) had significant differences among the treatments (P0.05). Results showed that stocking densities have major effects on water quality and growth indices of Beluga juveniles.
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spelling doaj.art-66c1c24493a04b378ba3ec8b8b8547972022-12-21T22:33:28ZfasIranian Fisheries Research Organization‬‭Majallah-i ̒Ilmī-i Shīlāt-i Īrān1026-13542322-59982011-01-01201165170Evaluation of stocking density on water quality parameters in rearing of Beluga (Huso huso)S. Rafatnezhad; B. Falahatkar The potential effects of stocking densities (1, 2, 4, 6 and 8kg/m-2) of Beluga (Huso huso) was investigated on water quality and growth factors of the fish. Feed was offered three times daily using a commercial diet to the juvenile fish at the average initial weight of 93.13±1.04g (±SE) for a period of 8 weeks. The final biomass was 4.0, 6.5, 11.0, 14.5, 17.1kg/m-2 from the lowest to the highest densities, respectively. At the termination of the experiment, the mean weight reached 362.4±6.9, 319.7±2.1, 267±9.2, 242.1±6.2 and 211.1±4.1 in densities of 1 to 8kg/m-2, respectively. Results of the present study showed that growth parameters, including: Final weight (W), body weight daily (BWD), weight gain (WG), condition factor (CF) and feed efficiency (FE) had significant differences among the treatments (P0.05). Results showed that stocking densities have major effects on water quality and growth indices of Beluga juveniles.http://isfj.areo.ir/article_109985_en.htmlDensity; Water quality; Growth; Sturgeon
spellingShingle S. Rafatnezhad; B. Falahatkar
Evaluation of stocking density on water quality parameters in rearing of Beluga (Huso huso)
‬‭Majallah-i ̒Ilmī-i Shīlāt-i Īrān
Density; Water quality; Growth; Sturgeon
title Evaluation of stocking density on water quality parameters in rearing of Beluga (Huso huso)
title_full Evaluation of stocking density on water quality parameters in rearing of Beluga (Huso huso)
title_fullStr Evaluation of stocking density on water quality parameters in rearing of Beluga (Huso huso)
title_full_unstemmed Evaluation of stocking density on water quality parameters in rearing of Beluga (Huso huso)
title_short Evaluation of stocking density on water quality parameters in rearing of Beluga (Huso huso)
title_sort evaluation of stocking density on water quality parameters in rearing of beluga huso huso
topic Density; Water quality; Growth; Sturgeon
url http://isfj.areo.ir/article_109985_en.html
work_keys_str_mv AT srafatnezhadbfalahatkar evaluationofstockingdensityonwaterqualityparametersinrearingofbelugahusohuso