boars, libido, breed, hybrids, exploitation season
Abstract
In this study it was defined the influence of breed, age and season on libido of boars exploited in insemination station. It was found that libido of hybrids (Duroc x Pietrain), (Pietrain x Duroc) and PIC is indeed higher than that of pure breed boars Pietrain, Duroc, wbp and pbz. Boars of Pietrain and pbz breed showed changes of sexual activity according to the exploitation season. Libido of boars was significantly higher in summer and autumn. The reaction of breeders to phantom in mention seasons was 2,75 min. The fastest reaction to phantom (2,4 min.) and the indeed shortest time to start ejaculation (4,6 min.) comparing to remaining age groups was shown by boars in ages above 36 months. Specimen in this age group didn’t shown any significant changes in sexual activity in each exploitation season. Received results can find use in practice. The acquaintance of boar’s libido will permit on his rational exploitation and improvement of organization of collecting the semen.
