Agrarian
Bulletin
of the Urals

Russian Journal of Agricultural Research

The publication is registered by the Ministry of the Russian Federation
for Affairs of the Press, Television and Radio Broadcasting and Mass Communication Media.
Registration certificate: PI number 77-12831 on May 31, 2002
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ISSN 1997 - 4868 (Print)

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Journal is included in the list of VAK (from 25.09.2017), No. 291

ISSN 2307-0005 (Online)
Key title: Agrarnyj vestnik Urala (Online)
Abbreviated key title: Agrar. vestn. Urala (Online)

Аграрный вестник Урала № 12 (179) 2018

Биология и биотехнологии

Хомподоева У. В. кандидат сельскохозяйственных наук, старший научный сотрудник лаборатории селекции и разведения лошадей Якутский научно-исследовательский институт сельского хозяйства им. М. Г. Сафронова

Иванов Р. В. доктор сельскохозяйственных наук, заведующий лабораторией селекции и разведения лошадей Якутский научно-исследовательский институт сельского хозяйства им. М. Г. Сафронова

В. А. Багиров доктор биологических наук, член-корреспондент РАН. директор Департамента координации деятельности организаций в сфере сельскохозяйственных наук Министерства науки и высшего образования Российской Федерации

УДК:63.636.02.028

VARIABILITI OF SOME ECONOMIC-USEFUL SIGNS IN YOUNG SHEEP WITH DIFFERENT GENETIC COMPATIBILITY IN YAKUTIA

 On young growth of sheep of four pedigree groups age variability of some economic and useful signs characterizing weight and linear growth is studied. It is established that among the compared pedigree groups of lambs on live weight the lambs received from crossing of zabaikal sheep with archar×chubuku×romanov ram had advantage. The coefficients of variation in body weight within breed groups are relatively low and the variation curves were uniform in nature. The reliable superiority over identified archar×chubuku×romanov and buubey×archar×chubuku×romanov lambs. So, at 6 months of age the live weight was zabajkale×archar×chubuku×romanov lambs made up 33,67 ± 0,27 kg, which is 8.5 % more archar×chubuku×romanov  (31,01±0,34) and 6.3 % above buuba×arkhar×the shank×romanov (of 31, 66 ± 0,53) lambs (P ≥ 0,99).

At the same time, the highest coefficient of variability was observed during the early period of individual development that indicates great opportunities for increase in live weight in the course of carrying out selection work. It was found that the phenotypic differences of measurements of the coefficient of variation in sheep hybrid calves were expressed in the manifestation of genetic predisposition in the general economic conditions of feeding and housing . Breed characteristics to a lesser extent affected the variability of the studied traits. The greatest uniformity on the General features of the variability of the measurements differed lambs I control (archar×chubuku×romanov) and I pilot (buubey×archar×chubuku×romanov) group. A similar pattern of variability of the main measurements were observed on the lambs II the control (zabajkale) and II experimental (zabajkale×archar×chubuku×romanov) groups. The established regularities of age variability of the main selected traits can undoubtedly be used in the practical selection of sheep.


Keywords:

the coefficient of variation, body weight, measurements, archar×chubuku×romanov (ACHR) lambs, buubey×archar×chubuku×romanov (BACHR) lambs, zabaikal (ZAB)lambs, zabaikal×archar×chubuku×romanov (ZACHR) lambs.


References:

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