The effects of nucleotide on growth factors and growth related genes (GH and IGF) of Caspian roach (Rutilus Caspicus)

Document Type : scientific research article

Authors

1 Ph.D. Student of Fisheries, Faculty of Fisheries and Environmental Sciences, Gorgan University of Agricultural Sciences and Natural Resources, Gorgan, Iran.

2 Corresponding Author, Dept. of Aquaculture, Faculty of Fisheries and Environmental Sciences, Gorgan University of Agricultural Sciences and Natural Resources, Gorgan, Iran.

3 Dept. of Aquaculture, Faculty of Fisheries and Environmental Sciences, Gorgan University of Agricultural Sciences and Natural Resources, Gorgan, Iran

4 University of Applied Science and Technology, Provincial Unit Golestan, Gorgan, Iran

5 Dept. of Fisheries Science, Science and Research Branch, Islamic Azad University, Tehran, Iran.

Abstract

Caspian roach is one of the valuable fish of the Caspian Sea, which is released into the Caspian sea through artificial reproduction to restore stocks every year, so improving its diet to achieve more resistant and high quality fish is one of the important goals of aquaculture. The purpose of this study was to evaluate the effects of nucleotide on growth factors and growth related genes (GH and IGF) of Caspian roach (Rutilus Caspicus) so 1500 fish fry with the average weight of 0/5 ± 0/01 were divided into 12 fiberglass tanks (400 L) and fed on 0, 0/3, 0/6 and 1/2 g/kg nucleotide for 8 weeks. At the end of the experiment fish were biometry and brain and liver tissue were separated. Results showed that, final weight (FW), weight gain (WG) and specific growth rate (SGR) had significant differences in 0/6 and 1/2 g with control (P<0/05). The lowest food conversation ratio (FCR) at significant difference with control was observed in 1/2 g (P<0/05). GH and IGF genes expression in 0/6 and 1/2 g showed remarkable differences with control (P<0/05). It can be concluded that, dietary nucleotide could improve growth factor in Caspian roach.

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Main Subjects

References

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Journal of Utilization and Cultivation of Aquatics
Volume 13, Issue 4
January 2025
Pages 65-75

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