Lysenko G. Influence of different technological factors on service boar reproductive functions

Beef breed service boars (landras and Durok). Purpose of investigation. To estimate the influence of some technological factors on boar's reproductive ability. Zootechnical, zoohygienic, haemotological, statistical. The necessaty to give exercise twice a day has been experimentally proved. the advantage of the use of Landras boars in the conditions of intensive tehnology has been shown. Boar evaluation according to their reproductive ability depending on some technological factors (management, seasons and others) was carried out for the first time. Some new elements such as the use for breeding and sperm estimation by interferention microscopy method used in the Kharkov region. The domain of use is pig industry.