ЭлБиб

Молочнохозяйственный вестник, №4 (24), IV кв. 2016

Биологические и сельскохозяйственные науки

Re-selection effectiveness of Kostroma purebred cattle

Baranova, Nadezhda Sergeevna , Doctor of Agricultural Sciences, Associate

Professor, Professor.

e-mаil:

Federal State Budgetary Educational Institution of Higher Education «Kostroma

State Agricultural Academy».

Baranov Alexandr Vasilyevich , Doctor of Biological Sciences Federal State

Budgetary Educational Institution of Higher Education «Kostroma State Agricultural

Academy».

e-mаil:

Podrechneva Irina Yuryevna, post-graduate student

e-mаil:

Federal State Budgetary Educational Institution of Higher Education «Kostroma

State Agricultural Academy».

Abstract.

The research has been organized at “Experimental farm “Karavaevo” in

2015. Cows after re-selection exceed other selection types cattle in milk productivity

133kg(Р<0,001) during the 3-rd and more lactation period and 213 kg (Р<0,001) in

the highest lactation time. From 70 re-selection cows 33(47%) have milk productivity

more than 8000 kg during 305 lactation days. It has been noticed high breed value of

bulls: Krik 9194, Ryadoc 3023, Bushuy 2726 Master›s relative 106902, Spike 5169

Leyrd›s relative group 71151 and Lednik bull 3518 Ladka›s line КТКS-253. High levels

of milk production in purebreed families have been observed in animals obtained by

selecting options AB × BB, AB × AB, BC × AA by EAB - blood group locus. Re-selection

is of great practical importance by preparation of bulls-continuers. Thus our studies has

been shown practical value of reselection in breeding dairy cattle. Genetic markers of

blood groups using in selection planning allows to identify their most desirable options.

Keywords

: Kostroma breed, re-selection, families, EAB-locus of blood-groups,

milk productivity, bulls- continuers.

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