engleski

Biological characteristics of turopolje pig breed as factors in renewing and preservation of population

Since 1996, Turopolje pig breed, an autochtonous Croatian breed and one of the older European pig breed is in the state of renewaland conservation. The aim of this study was to determine zhe size of breeding and effective population and some of the biological traits which shobe of importance in the program of in situ preservation. According to the FAO standards, this breed is in the status of critical /endangerment although the obtainedresults showed the increase of breeding (12 vs. 130 sows and 3 vs. 15 boars)and effective population(9.6 vs. 53.8) fron 1996 to 2008, respectively. the average litter size (number of born pigletsin total and live were 7.7 and 6.3, respectively)and piglets weights at 1st (1.25 kg) and 42nd (4.4 kg) day of age were within the standards for this breed. the average survival of piglets from 1st to 42nd day of age was 73.5 5. the compositionof carcass and carcass parts estimated as the ratio of muscle: fat tissues was 1.1 : 1.0 and 0.8-1.5 : 1.0, respectively. In adition, fatty acid composition of MLD and back fat as wellas MLD histochemical and histomorphological characteristics (diameter and proportionsof SO, FG, and FOG fibre types were specific. The characteristics of carcass and tissues traits are consequences of specific historical conditions, selection breeding, and production in specific environment. The biological traits of Turopolje pig breed are not limiting factors in the increasing of breeding population and changing of the present endangerment status.

Turopolje pig breed; outdoor system; effective population; litter siz; carcass composition; tissues traitss

Rad je osnova za nastavak dljnjih istraživanja posebno fiziologije turopoljske svinje /pasmine.