Effects of different dietary energy levels on growth performance and sexual gonads development of Beluga (Huso huso) reared in brackish water
Culture of beluga (Huso huso) in new conditions such as inland brackish water necessitates studying nutritional requirements and effects of different diets on gonadic and somatic growth as well as physiological condition. In this research 74 beluga each 4 years old cultured in brackish water of eart...
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ftoceandocs:oai:aquadocs.org:1834/11552 2023-05-15T15:41:38+02:00 Effects of different dietary energy levels on growth performance and sexual gonads development of Beluga (Huso huso) reared in brackish water Alizadeh, M. Sepahdari, A. Sarsangi, H. Hedayati, S.A. Iran Yazd province 2009 pp.91-104 http://hdl.handle.net/1834/11552 fa per http://isfj.areo.ir/ 1026-1354 http://hdl.handle.net/1834/11552 Nutritional requirements Inland fisheries Ovaries Cultured organisms Huso huso Brackish Testes Diets Growth Fish physiology Sexual maturity Gonads Journal Contribution Refereed 2009 ftoceandocs 2023-04-06T16:59:31Z Culture of beluga (Huso huso) in new conditions such as inland brackish water necessitates studying nutritional requirements and effects of different diets on gonadic and somatic growth as well as physiological condition. In this research 74 beluga each 4 years old cultured in brackish water of earthen ponds in Bafgh Fisheries Research Station, were selected and distributed in 8 circular cement ponds. Feeding was done in 4 formulated diets with fixed protein level and 4 energy levels (400, 425, 450, 475kcal/l00g). Samples were biopsied at the start and the end of the experiment to determine sexuality and stage of maturation. To study gonad tissues, the hematoxylin-eosin method was used. Results indicated that somatic and gonadic growth indices were affected by diets. Somatic growth overlapped in both sexes. Sexual maturation stages were not the same in males and females and transition from stage II in males was more rapid than females. Considering the results in this study, diet treatments influenced on somatic growth in both sexes and gonadic growth in females. We conclude that somatic and especially gonadic growth in brackish water is suitable. Therefore, inland brackish water environment can be regarded suitable for beluga cultivation. Published Book Beluga Beluga* IODE-UNESCO: OceanDocs - E-Repository of Ocean Publications |
institution |
Open Polar |
collection |
IODE-UNESCO: OceanDocs - E-Repository of Ocean Publications |
op_collection_id |
ftoceandocs |
language |
Persian |
topic |
Nutritional requirements Inland fisheries Ovaries Cultured organisms Huso huso Brackish Testes Diets Growth Fish physiology Sexual maturity Gonads |
spellingShingle |
Nutritional requirements Inland fisheries Ovaries Cultured organisms Huso huso Brackish Testes Diets Growth Fish physiology Sexual maturity Gonads Alizadeh, M. Sepahdari, A. Sarsangi, H. Hedayati, S.A. Effects of different dietary energy levels on growth performance and sexual gonads development of Beluga (Huso huso) reared in brackish water |
topic_facet |
Nutritional requirements Inland fisheries Ovaries Cultured organisms Huso huso Brackish Testes Diets Growth Fish physiology Sexual maturity Gonads |
description |
Culture of beluga (Huso huso) in new conditions such as inland brackish water necessitates studying nutritional requirements and effects of different diets on gonadic and somatic growth as well as physiological condition. In this research 74 beluga each 4 years old cultured in brackish water of earthen ponds in Bafgh Fisheries Research Station, were selected and distributed in 8 circular cement ponds. Feeding was done in 4 formulated diets with fixed protein level and 4 energy levels (400, 425, 450, 475kcal/l00g). Samples were biopsied at the start and the end of the experiment to determine sexuality and stage of maturation. To study gonad tissues, the hematoxylin-eosin method was used. Results indicated that somatic and gonadic growth indices were affected by diets. Somatic growth overlapped in both sexes. Sexual maturation stages were not the same in males and females and transition from stage II in males was more rapid than females. Considering the results in this study, diet treatments influenced on somatic growth in both sexes and gonadic growth in females. We conclude that somatic and especially gonadic growth in brackish water is suitable. Therefore, inland brackish water environment can be regarded suitable for beluga cultivation. Published |
format |
Book |
author |
Alizadeh, M. Sepahdari, A. Sarsangi, H. Hedayati, S.A. |
author_facet |
Alizadeh, M. Sepahdari, A. Sarsangi, H. Hedayati, S.A. |
author_sort |
Alizadeh, M. |
title |
Effects of different dietary energy levels on growth performance and sexual gonads development of Beluga (Huso huso) reared in brackish water |
title_short |
Effects of different dietary energy levels on growth performance and sexual gonads development of Beluga (Huso huso) reared in brackish water |
title_full |
Effects of different dietary energy levels on growth performance and sexual gonads development of Beluga (Huso huso) reared in brackish water |
title_fullStr |
Effects of different dietary energy levels on growth performance and sexual gonads development of Beluga (Huso huso) reared in brackish water |
title_full_unstemmed |
Effects of different dietary energy levels on growth performance and sexual gonads development of Beluga (Huso huso) reared in brackish water |
title_sort |
effects of different dietary energy levels on growth performance and sexual gonads development of beluga (huso huso) reared in brackish water |
publishDate |
2009 |
url |
http://hdl.handle.net/1834/11552 |
op_coverage |
Iran Yazd province |
genre |
Beluga Beluga* |
genre_facet |
Beluga Beluga* |
op_relation |
http://isfj.areo.ir/ 1026-1354 http://hdl.handle.net/1834/11552 |
_version_ |
1766374533655166976 |