Influence of salinity on growth and survival rate of juvenile spotted scats (Scatophagus argus Linnaeus, 1766)
Vol. 130 No. 3D (2021), Original Article
Vol. 130 No. 3D (2021)

Influence of salinity on growth and survival rate of juvenile spotted scats (Scatophagus argus Linnaeus, 1766)

Original Article
https://doi.org/10.26459/hueunijard.v130i3D.6095
Published 2021-11-03
Nguyen Van Huy
University of Agriculture and Forestry, Hue University, 102 Phung Hung St., Hue, Vietnam
Vo Đieu
University of Agriculture and Forestry, Hue University, 102 Phung Hung St., Hue, Vietnam
PDF (Vietnamese)

Keywords

độ mặn
sinh trưởng
Scatophagus argus
hệ số chuyển hóa thức ăn salinity
growth rate
Scatophagus argus
feed conversion ratio

Abstract

Juvenile spotted scats (Scatophagus argus) of 21 to 50 days old were cultured at salinities 10, 15, 20, and 25‰. The results show that growth rates in terms of length and weight at 15 and 20‰ salinities were higher than those at 10 and 25‰ treatments. However, the survival rate of Scatophagus argus showed no significant differences among treatments. The survival rate of fish was more than 80%, and the difference was statistically insignificant. The feed conversion ratio was the lowest at 15‰ salinity and statistically different from that of 10‰ but not different from that of 20 or 25‰. The results confirmed that salinity had an effect on the growth and survival and feed conversion ratio. Therefore, it is suggested to rear Scatophagus argus at a salinity of 15–20‰.

https://doi.org/10.26459/hueunijard.v130i3D.6095
PDF (Vietnamese)

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