[Effect of the cestoda Bothriocephalus acheilognathi on morphology and physiology of carps reared in warm water]. / Vliianie tsestody Bothriocephalus acheilognathi na morfofiziologicheskie pokazateli karpov, vyrashchivaemykh na teplykh vodakh.

Influence of the cestode Bothriocephalus acheilognathi on morphological and physiological characteristics of carps and protein content in organs and tissues of fishes reared in basins with warm water have been studied. Dynamics of weight, length, height and index of nourishment state have been examined in carps noninfected and infected with cestodes.

[The dynamics of the ectoparasite count and the protein level in the blood serum of infested carp under experimental conditions]. / Dinamika chislennosti éktoparazitov i soderzhaniia belkov v syvorotke krovi zarazhennykh karpov v éksperimental'nykh usloviiakh.

Carps of one and two years age used for laboratory experiments were collected in winter time. 7 groups of carps of one year age were examined each 10th day during 70 days and 5 groups of two years age were examined each 15 days during 75 days. In carps of one year age the increase of different parasites was observed in different time: Dactylogyrus extensus--after 40 and 70 days, Icthyophthirius multifiliis--after 50 days, Trichodina sp.--after 60 days. In carps of two years age the increase of all parasite groups observed after 45 days, extremely great number of D. extensus was recorded after 60-70 days. Contents of proteins in a blood plasma of both age groups of carps is reliably decreased when the number of parasites is increased. Fluctuations of parasite abundance on the body and gills and some morphophysiological indices in carps of one year age in a control and in conditions of starvation were examined.