Open AccessCytogenetic characteristics of male rabbits with different reproductive capacity in the formation of a breeding group
Author(s) -
Глеб Юрьевич Косовский,
Тамара Константиновна Карелина,
Тамара Викторовна Прокопенко,
Екатерина Александровна Стрельцова,
Екатерина Валентиновна Голованова
Publication year - 2021
Publication title -
agrarnyj naučnyj žurnal
Language(s) - English
Resource type - Journals
eISSN - 2587-9944
pISSN - 2313-8432
DOI - 10.28983/asj.y2021i10pp88-92
Subject(s) - micronucleus test , breed , biology , fertility , mating , micronucleus , herd , andrology , genetics , zoology , veterinary medicine , population , demography , medicine , toxicity , sociology
The cytogenetic characteristics of rabbits are presented using a micronucleus test, which makes it possible to improve existing breeds and types, to seek opportunities for the accelerated creation of new forms of animals. In the FGBNU NIIPZK, during the formation of a breeding group of rabbits, data on the reproductive capacity of males were obtained and correlated with the results of the micronucleus test. Determination of the stability of the genome of rabbits of the created breed using the micronucleus test showed that the frequency of occurrence of erythrocytes with micronuclei varied in males in the range of 0.1 - 1.3 ‰ or on average was 0.55 ± 0.07 ‰. The research results showed that in the outbred group of males, the range of fluctuations in cytogenetic characteristics was from 0.1 ‰ to 1.17 ‰, inbred, respectively, from 0.1 ‰ to 1.3 ‰. At the same time, in males with different reproductive ability in groups, differences in the frequency of occurrence of erythrocytes with micronuclei were revealed. Based on the assessment of the reproductive ability of males of the main herd of the breed being created, participating in outbred mating, 8 males were selected with 100% fertilizing ability of the fertile females and average indicators: fertility - 8.8 ± 0.7 (head), the frequency of occurrence of erythrocytes with micronuclei 0.56 ± 0.15; participating in inbred mating, 8 males were selected with 100% fertilizing ability of covered females and average indicators: fertility: 8.7 ± 0.4 (head), the frequency of occurrence of erythrocytes with micronuclei 0.77 ± 0.15 ‰.