EVALUATION OF THE SIBERIAN STURGEON (Acipenser baeri Brandt) AND GREEN STURGEON (A. medirostris Ayres) HYBRID COMPARING TO THE MOTHER SPECIES

Ryszard Kolman; Mirosław Szczepkowski; Julian Pyka

Ryszard Kolman
Mirosław Szczepkowski
Julian Pyka

Keywords: STURGEONS, HYBRIDS, INTENSIVE FISH REARING, GROWTH RATE, FOOD CONVERSION RATE

Abstract

Good results of rearing beluga (Huso huso L.) and sterlet (Acipenser ruthenus L.) hybrids encouraged fish farmers to hybridize various species of sturgeons. Siberian sturgeon (Acipenser baeri Brandt) and green sturgeon (A. medirostris Ayres) hybrid is one of the crosses. The aim of the present study was a comparison of growth rate and food conversion rate of the hybrid and Siberian sturgeon under intensive tank rearing conditions. At the end of rearing (on day 325) average individual body mass of the hybrids was 2110 g, and was 27% higher comparing to Siberian sturgeon. Food conversion rate was also higher.