Characteristics of biochemical indicators of sperm production of carp males while using naked oats in the nutrition process during pre-sprawning period

Abstract

In the research there have been used males of the Nyvka intra-breed type of the Ukrainian scaly carp breed, which were kept during the pre-spawning period in the pond conditions of the State Enterprise “Experimental fish farm Nyvka” within the Institute of Fisheries of the National Academy of Agrarian Sciences of Ukraine (IFNAASU). The carps were divided into 3 groups. The first group (Experiment I) was fed 100 % naked oats, the second (Experiment II) – 30 %, the control group of fish (Control) was fed a grain mixture. The quality of sexual products of male carp was assessed by determining the effect of adding naked oats to their diet during the pre-spawning period. Indicators of sperm motility and fertilizing ability, content of γ-, β- and α-globulins, albumin, prealbumin, and physiological characteristics of ejaculates of respiratory and regenerative capacity, activity of enzymes of respiratory chain of mitochondria (CHO and SDG) were studied. Given the increased productivity of fish sperm, in particular the increase in the number of sperm with rectilinear motion, decrease in the number of inanimate sperm and changes in the protein formula of germ cells, it is advisable to add naked oats to the main diet in the amount of 30 %.