Preliminary results of ewes utilization from Friesian x Merino crosses in 3 matings system during 2-year period
RU
Predvaritel'nje rezul'taty ispol'zovanija ovcematok proishodyashhih ot skrecshhivanija frizskih i merinosovyh ovec v sisteme 3 sparivanij v 2-letnij period