Comparative immuno-biochemical characteristic of stocking material of carp (Cyprinus carpio L.), bighead carp (Aristichtyts nobilis Rich.), grass carp (Ctenopharyngodon idella Val.) and tench (Tinca tinca L.), raised in polyculture.

摘要

Comparative immuno-biochemical characteristics of stocking material of carp, grass carp, bighead carp and tench raised in polyculture, was performed for the index of bacterial activity, total proteins and blood glucose of blood serum pre and postwintering.It has been established that bactericidal activity is a comparatively stable index, characterizing the disease resistance of fish specied and ages studied during the wintering period.It was proved that there is a sesonal variability of the total proteins and blood glucose indexes, higher values being recorded in autumn and spring.Bighead carp and tench demonstrated species-related distinction in terms of total proteins and blood glucose, deposited in autumn and their utilization in the wintering period.