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...
Main Authors: | , , , |
---|---|
Format: | Article in Journal/Newspaper |
Language: | Persian |
Published: |
2009
|
Subjects: | |
Online Access: | http://hdl.handle.net/1834/38500 |
id |
ftoceandocs:oai:aquadocs.org:1834/38500 |
---|---|
record_format |
openpolar |
spelling |
ftoceandocs:oai:aquadocs.org:1834/38500 2023-05-15T15:41:37+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. 2009 application/pdf 91-104 http://hdl.handle.net/1834/38500 fa per http://www.ifro.ir 1026-1354 http://hdl.handle.net/1834/38500 http://aquaticcommons.org/id/eprint/23787 18721 2018-07-27 13:59:35 23787 Iranian Fisheries Science Research Institute Aquaculture Biology Huso huso Brackish water Energy Growth Yazd province Iran article TRUE 2009 ftoceandocs 2023-04-06T17:06:11Z 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. Article in Journal/Newspaper 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 |
Aquaculture Biology Huso huso Brackish water Energy Growth Yazd province Iran |
spellingShingle |
Aquaculture Biology Huso huso Brackish water Energy Growth Yazd province Iran 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 |
Aquaculture Biology Huso huso Brackish water Energy Growth Yazd province Iran |
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. |
format |
Article in Journal/Newspaper |
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/1834/38500 |
genre |
Beluga Beluga* |
genre_facet |
Beluga Beluga* |
op_source |
http://aquaticcommons.org/id/eprint/23787 18721 2018-07-27 13:59:35 23787 Iranian Fisheries Science Research Institute |
op_relation |
http://www.ifro.ir 1026-1354 http://hdl.handle.net/1834/38500 |
_version_ |
1766374516865368064 |