The effects of different dietary levels of betaine and methionine as attractant on the growth factors and survival rate of juvenile beluga (Huso huso)
In an 8-week feeding trial, attractants betaine, methionine and a mixture of betaine and methionine were added to diet of juvenile beluga (1-huso huso) at different levels to assess their effects on growth and survival rate of the fish. In the trial, carried out in Shahid Marjani center for sturgeon...
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ftoceandocs:oai:aquadocs.org:1834/12253 2023-05-15T15:41:41+02:00 The effects of different dietary levels of betaine and methionine as attractant on the growth factors and survival rate of juvenile beluga (Huso huso) Sudagar, M. Azari Takami, Gh. Panomarev, C.A. Mahmoudzadeh, H. Abedian, A. Hosseini, S.A. Iran Caspian Sea 2005 pp.41-50 http://hdl.handle.net/1834/12253 fa per http://isfj.areo.ir/ 1026-1354 http://hdl.handle.net/1834/12253 Huso huso Beluga Methionine Growth Feeding Juvenile Journal Contribution Refereed 2005 ftoceandocs 2023-04-06T16:59:34Z In an 8-week feeding trial, attractants betaine, methionine and a mixture of betaine and methionine were added to diet of juvenile beluga (1-huso huso) at different levels to assess their effects on growth and survival rate of the fish. In the trial, carried out in Shahid Marjani center for sturgeon hatchery and cultivation in Golestan Province of Iran, three different dietary levels 0.5%, 1% and 1.5% of attractants were used in PVC tanks filled with about 350 liters of water. We stocked 20 juvenile belugas with an average weight 28.2 ±2.63 grams in the tanks and fed them with four daily meals. Growth and survival factors were analyzed at the end of the trial period which showed that the addition of attractants in diets led to improvement of body weight gain, weight gain percentage* specific growth rate (SGR), protein efficiency ratio (PER), net protein utilization (NPU), condition factor(CF), survival, price index(PI) compared to control. The addition also led to a decrease in food conversion ratio (FCR) compared to control. The best improvement in indices was achieved with a diet enriched with 0.5% betaine and 1% methionine. 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 |
Huso huso Beluga Methionine Growth Feeding Juvenile |
spellingShingle |
Huso huso Beluga Methionine Growth Feeding Juvenile Sudagar, M. Azari Takami, Gh. Panomarev, C.A. Mahmoudzadeh, H. Abedian, A. Hosseini, S.A. The effects of different dietary levels of betaine and methionine as attractant on the growth factors and survival rate of juvenile beluga (Huso huso) |
topic_facet |
Huso huso Beluga Methionine Growth Feeding Juvenile |
description |
In an 8-week feeding trial, attractants betaine, methionine and a mixture of betaine and methionine were added to diet of juvenile beluga (1-huso huso) at different levels to assess their effects on growth and survival rate of the fish. In the trial, carried out in Shahid Marjani center for sturgeon hatchery and cultivation in Golestan Province of Iran, three different dietary levels 0.5%, 1% and 1.5% of attractants were used in PVC tanks filled with about 350 liters of water. We stocked 20 juvenile belugas with an average weight 28.2 ±2.63 grams in the tanks and fed them with four daily meals. Growth and survival factors were analyzed at the end of the trial period which showed that the addition of attractants in diets led to improvement of body weight gain, weight gain percentage* specific growth rate (SGR), protein efficiency ratio (PER), net protein utilization (NPU), condition factor(CF), survival, price index(PI) compared to control. The addition also led to a decrease in food conversion ratio (FCR) compared to control. The best improvement in indices was achieved with a diet enriched with 0.5% betaine and 1% methionine. Published |
format |
Book |
author |
Sudagar, M. Azari Takami, Gh. Panomarev, C.A. Mahmoudzadeh, H. Abedian, A. Hosseini, S.A. |
author_facet |
Sudagar, M. Azari Takami, Gh. Panomarev, C.A. Mahmoudzadeh, H. Abedian, A. Hosseini, S.A. |
author_sort |
Sudagar, M. |
title |
The effects of different dietary levels of betaine and methionine as attractant on the growth factors and survival rate of juvenile beluga (Huso huso) |
title_short |
The effects of different dietary levels of betaine and methionine as attractant on the growth factors and survival rate of juvenile beluga (Huso huso) |
title_full |
The effects of different dietary levels of betaine and methionine as attractant on the growth factors and survival rate of juvenile beluga (Huso huso) |
title_fullStr |
The effects of different dietary levels of betaine and methionine as attractant on the growth factors and survival rate of juvenile beluga (Huso huso) |
title_full_unstemmed |
The effects of different dietary levels of betaine and methionine as attractant on the growth factors and survival rate of juvenile beluga (Huso huso) |
title_sort |
effects of different dietary levels of betaine and methionine as attractant on the growth factors and survival rate of juvenile beluga (huso huso) |
publishDate |
2005 |
url |
http://hdl.handle.net/1834/12253 |
op_coverage |
Iran Caspian Sea |
genre |
Beluga Beluga* |
genre_facet |
Beluga Beluga* |
op_relation |
http://isfj.areo.ir/ 1026-1354 http://hdl.handle.net/1834/12253 |
_version_ |
1766374582741106688 |