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Ribogospod. nauka Ukr., 2017; 4(42): 121-127
DOI: https://doi.org/10.15407/fsu2017.04.121 
УДК [639.371/52:612.017.1]:[639.3.043:636.087.72/.73]

State of the immune protection system of brood carp (Cyprinus carpio Linnaeus, 1758) based on vitamin E and selenium levels in their diet

S. Yurchak, This email address is being protected from spambots. You need JavaScript enabled to view it. , Lviv Experimental Station, Velykyi Lyubin

Purpose: To assess the state of the immune system of brood carp, which were fed with a combined feed containing a liposomal preparation with vitamin E and organic compound of selenium microelement during pre-spawning period.

Methodology: The study has been performed in three experimental ponds, in which carp females and males were placed after wintering. The first experimental group was fed with a diet supplemented with vitamin E at a concentration of 50 mg/mg of the feed and selenium – 0.3 mg/kg. The second experimental group received the supplement of vitamin E at a concentration of 100 mg.kg and selenium – 0.3 mg/kg. The control group received the mentioned combined feed without addition of the vitamin-mineral supplement. After termination of 30-day pre-spawning feeding with the combined feed supplemented with vitamin E and selenium, blood samples for biochemical tests were collected from fish of the control and both experimental groups.

Findings. It was found that pre-spawning feeding of carp females and males with combined feeds supplemented with the above mentioned vitamin-mineral additive had a positive effect on the contents of T-, B-lymphocytes and their subpopulations in fish blood.

Originality. The effect of the liposomal preparation with vitamin E and microelement Se fed to brood carp during the pre-spawning period on the contents of T-, B-lymphocytes and their subpopulations in fish peripheral blood was studied for the first time.

Practical value. The results of the study can be used in fish breeding centers and full-system fish farms for balanced feeding of brood fish.

Keywords: brood carp, pre-spawning period, liposomal preparation, vitamin E, microelement selenium, T -, B - lymphocytes.

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