Some technological aspects in improvement of weaned pigs

Abstract

Effects of utilization of imported boars in comparison to domestic ones were investigated, two imported boar lines Tibora and Tempa were compared in regard to production of their progeny, piglets in rearing, and in the final, third trial, possibilities for use of Biokvas preparation as substitute of yeast in nutrition of piglets in rearing were studied. Obtained results showed that considerably better production is realized by improvement of gain by 17,79% and feed conversion by 12,21% as well as lower cost of gain by 12,16% in progeny of imported boars. No differences were established in weaned piglets deriving from two imported boar lines Tibora or Tempa. Considering that better gain in average by 3,88% and cheaper by 0,57% was realized, it can be concluded that Biokvas as a protein feed can succesfully be used as substitute for yeast in nutiriton of piglets in rearing. In general, use of imported boars as well as application of Biokvas instead of yeast in nutrition of piglets and with objective of improvement of production of rearing piglets were justified.

U tri ogleda ispitivani su efekti korišćenja uvoznih u odnosu na domaće neraste, komparacija dvaju linija Tibora i Tempa, uvoznih nerastova na proizvodnju njihovih potomaka, prasadi u odgoju, a u poslednjem trećem ogledu mogućnosti korišćenja biokvasa kao zamene kvascu u ishrani prasadi u odgoju. Ispitivanja, su izvedena na privatnoj farmi svinja Fencaroš u Platičevu - Šabac. U eksperimente je uključeno ukupno 56 odbijene prasadi rase melezi Veliki Jorkšir x Švedski Landras. Ogledi su formirani neposredno pri zalučenju prasadi i trajali su 39 hranidbenih dana pri čemu su prasad bila iste starosti na zalučenju. Dobijeni rezultati su pokazali da se: - ostvaruje znatno bolja proizvodnja, poboljšanjem prirasta za 17,79% i konverzije hrane za 12,21% kao i jeftinijom cenom prirasta za 12,16% kod potomaka nerastova iz uvoza. - nije bilo razlike kod odbijene prasadi korišćenjem dvaju linija nerasta iz uvoza Tibora ili Tempa. - s obzirom na bolji, u proseku za 3,88%, i za 0,57% jeftiniji prirast, biokvas se pokazao da kao proteinsko hranivo može vrlo uspešno zameniti kvasac u ishrani prasadi u odgoju. U celini se pokazala opravdanost korišćenja nerastova iz uvoza kao i primena biokvasa u cilju unapređenja proizvodnje prasadi u odgoju.