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 (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(Pl) 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.
Main Authors: | Sudagar, M., Azari Takami, Gh., Panomarev, C.A., Mahmoudzadeh, H., Abedian, A., Hosseini, S.A. |
---|---|
Format: | Journal Contribution biblioteca |
Language: | Persian |
Published: |
2005
|
Subjects: | Dietary, Growth, Survival rate, Juvenile beluga, Huso huso, Feeding, Methionine, Protein, |
Online Access: | http://hdl.handle.net/1834/12813 |
Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
Similar Items
-
The effects of different dietary levels of betaine and methionine as attractant on the growth factors and survival rate of juvenile beluga (Huso huso)
by: Sudagar, M., et al.
Published: (2005) -
Effect of dietary mannan oligosaccharide on growth performance, survival, body composition and intestinal microflora in great sturgeon juvenile (Huso huso Linnaeus, 1754)
by: Ghobadi, Shaian, et al.
Published: (2012) -
The probiotic effects of dietary inactive yeast Saccharomyces cerevisiae var. ellipsoideus on growth factors, survival, body composition and intestinal microbiota of Beluga juvenile (Huso huso)
by: Hoseinifar, S.H., et al.
Published: (2011) -
Effect of dietary mannan oligosaccharide on growth performance, survival, body composition and intestinal microflora in great sturgeon juvenile (Huso huso Linnaeus, 1754)
by: Ghobadi, Sh., et al.
Published: (2012) -
Effect of different dietary prebiotic GroBiotic®-A on growth factors, survival rate, body composition and intestinal microflora of cultured juvenile Beluga (Huso huso)
by: Adel, Milad, et al.
Published: (2016)