EXTERIOR AND CONSTITUTIONAL CHARACTERISTICS OF POLTAV SILVER BREED KINGS AND THEIR RELATIONSHIP WITH MEAT PRODUCTIVITY

  • Mykhailo Bashchenko Cherkasy experimental station of bioresources NAAS
  • Oleksandr Boiko Cherkasy experimental station of bioresources NAAS
  • Oleksandr Havrysh Cherkasy experimental station of bioresources NAAS
  • Ylia Sotnichenko Cherkasy experimental station of bioresources NAAS
Keywords: rabbits, Poltava silver, chest girth, waist width, breeding value

Abstract

The results of the evaluation of the exterior type of Poltava silver rabbits are
given. It was established that rabbits of the Poltava silver breed belong to the
mesosomal body type: the beat index in females is 56.3%, and in males - 56.9%. In
terms of productivity, rabbits are characterized by increased fleshiness, they give
skins suitable for fur and felt production. The use of animals of the mesosomal
body type in further selection and breeding work will make it possible to improve the animal population according to such indicators as body size and reproductive
capacity.
A moderate inverse-proportional probable relationship between the waist
width and the weight of the female was established r =- 0,48 (p<0,01) and a male r
=- 0,45 (p<0,01); oblique rump length and weight of the female r =- 0,35
(p<0,05). An inversely proportional relation of the straight length of the torso is
established r =- 0,1, oblique length of the body r =- 0,1, chest width r =- 0,1, chest
depth, width in maklocks r =- 0,1 with the live weight of the female body; a weak
correlation dependence was noted with head length r = 0,1 and the width of the
head r = 0,1 with the body weight of the female, but the results are improbable.
Insignificant differences in correlation values were found in males compared
to females. An improbable inverse dependence of the straight length of the trunk
has been established r =- 0,2, chest girth r =- 0,2, oblique length of the back r =-
0,3 with the live weight of males of the Poltava silver breed. The connection of
weak oblique strength of the trunk length is noted r = 0,1, chest width r = 0,1, head
length r = 0,1 and head width r =- 0,3 with the weight of males.
Purposeful selection and selection of animals with better development of the
rear part of the body will contribute to the formation of an array with high
indicators of meat productivity. Preservation, consolidation and strengthening of
such a regularity in the offspring leads to improvement of constitution and
exterior, increase of productivity and precociousness.

Published
2024-03-01