NATURAL SCIENCES

Journal of fundamental
and
applied researches

Study of the effect of feed types on growth and survival rate of russian sturgeon ( Brandt, 1833) in Vietnam

2015. №4, pp. 102-108

Nguyen Viet Thuy - thuy0032000@yahoo.com

Nutrition is one of the factors that have a significant impact on the growth rate, survival rate and efficiency of cultivation of different fish in general, and in particular the Russian sturgeon. In this study, three different diets (CT1 - Artemia and processed; CT2 - Lansy and Skerting; CT3 - Artemia, Lansy and Tubifex worm) were experimented in order to identify the most suitable diets for rearing Russian sturgeon from the stages of fry to fingerling. Results showed that the diets had strong effects on growth and survival rates of Russian sturgeon. the fish were fed with the formula CT3 obtained higher relative growth and survival rates compared to those of the formula CT2 (54.59 and 69.33 % as opposed to 42.6 and 37.67 %; P < 0.05). However, there were no significant differences about these two parameters between the formula CT3 and those of the formula CT1 (48.58 and 69 %) (P > 0.05). From the results of this study, it can be suggested that the formula CT3 was the most appropriate diet for rearing the Russian sturgeon from the stages of fry to fingerling under Lam Dong conditions.

Key words: fingerling, fry, growth rate, Russian sturgeon, survival rate, Acipenser gueldenstaedtii, молодь осетровых, скорость роста, выживаемость, русский осетр, кормление