Comparative Studies of Several Physiologic and Biochemical Indexes of Wild Type and Hatchery-Bred Sturgeons in the Early Ontogenesis

摘要

It was shown that, depending on the ways of breeding and living conditions, realization of food-seeking anddefensive behavioural reactions as well as single biochemical indexes (pattern of neurotransmitters and levels offree amino acids in the brain) in the wild type and hatchery-bred sturgeon juveniles differ significantly. Basing on thestudied indexes, the juveniles, bred in the ponds, are close to the wild type juveniles, whereas the juveniles, bred bypool technique, are quite different from them.