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ŠUMARSKI LIST 11-12/1995 str. 27     <-- 27 -->        PDF

J. Brna, L. Manojlović, M. Forgic B. UroSevid: ISTRAŽIVANJE UTJECAJA NAČINA SPARIVANJA U DIVLJE SVINJE
Conclusions:


* much better (earlier months) bearing dynamics is achieved using new
methods what is obvious comparing table ang graph I to tables and graphs
2,3 and 5; pigs of wild boar sows born only a month earlier are heavier 5
kg approx., what in fact is the main benefit of this bearing dynamics:
* the table and graph 4 show that experimental group pigs have much better
bearing dynamics
in relation to control group.
These benefits in mating dynamics using the new method are result of:


* mating of sexes two months earlier enabled earlier bearing (already in the
first cycle) of wild boar sows that mate early.
* specific aromatic, visual, sound, even physical contacts with earlier appearance
of astrus in older wild boar sows worked stimulating on sexual
activity of younger female (3-5 years), it was possible because the breeding
stock was situated on relatively small area (pairing paddock), about 30 ha
with 60 wild boar sows and 20 wild boars.
* earlier mating of primipara (experimental group) is caused by close and
permanent family links between the mother and her chosen female pigs. It
had positive effect on synchronized mating in family in contrast to the control
group, in which female pigs for replacement stock were raised in special
fenced area, but without their mothers.
Šumarski lisl br. ] 1 — 12. CXIX (1995), 373—381


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