Productivity of maternal ancestors of sire bulls artificial insemination organizations farm animals

This article provides information on the age and country of origin of live bulls-producers of two organizations for artificial insemination of farm animals on the territory of the Moscow region - AO "Moskovskoye" for breeding work "and AO" Head center for reproduction". The breed composition of the breeding enterprises of the region includes the following breeds of dairy-meat and meat production directions: ayrshir, angler, brown swiss, holstein, jersey, kostroma, montbeliard, simmental, kholmogory, black-and-white, yaroslavl, aberdeen angus, galloway. A characteristic is given for live bulls-producers of pedigree enterprises of the Moscow region on the productivity of mothers of bulls and mothers of fathers of bulls for 305 days at the highest lactation.