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Selekcija bikovskih majki u populaciji simentalske rase goveda

dc.creatorPantelić, Vlada
dc.creatorNovaković, Željko
dc.creatorOstojić Andrić, Dušica
dc.date.accessioned2018-12-14T14:50:15Z
dc.date.available2018-12-14T14:50:15Z
dc.date.issued2009
dc.identifier.issn1450-9156
dc.identifier.urihttp://r.istocar.bg.ac.rs/handle/123456789/186
dc.description.abstractIncrease of production and improvement of the quality of milk, as well as of the intensity of fertility, are main prerequisites of modern cattle production. For the purpose of production of domestic Simmental bulls it is necessary to select the best cows from main herd. These heads as a rule represent approx. 1% of best cows in the controlled population primary in regard to production of milk and milk fat, but also in regard to body development, udder development and fertility traits. Fertilization of bull dams is done according to adequate system, where, for each dam, annually, bull, previously selected as sire, is determined, whose semen will be used for her insemination. Since the fastest way for selection and genetic progress is sire-son line, the most attention is directed to selection of bull sires. In Serbia, annually, only very few bulls are tested, which is insufficient for realization of greater and faster genetic improvement of production and reproduction traits of Simmental population of cattle. Therefore, centres for artificial insemination often import semen of elite bulls for planned insemination of Simmental bull dams, or borrow young bulls from abroad (waiting bulls) whose semen is used for insemination of main population. In this paper criteria for selection of cows into category of bull dams are presented as well as results relating to milk production, fertility, body development and type score of bull dams of Simmental breed in Central Serbia.en
dc.description.abstractPovećanje proizvodnje i kvaliteta mleka kao i intenziteta plodnosti, osnovni su preduslovi savremene govedarske proizvodnje. Za potrebe proizvodnje bikova simentalske domaće rase neophodno je iz matičnog zapata odabrati najbolje krave. Ova grla, po pravilu, predstavljaju oko 1% najboljih krava kontrolisane populacije, pre svega u proizvodnji mleka i mlečne masti, a zatim i u telesnoj građi, građi vimena i osobinama plodnosti. Oplođavanje bikovskih majki se obavlja po odgovarajućem sistemu. Svakoj kravi se u toku jedne godine određuje bik čijim će se semenom osemeniti, a koji je prethodno odabran za oca budućih bikova. Budući da je najbrži put selekcije i genetskog unapređenja osobina putem linije otac-sin, izboru bikovskih očeva se pridaje najveća pažnja. U Srbiji se na godišnjem nivou testira jako mali broj bikova, što je nedovoljno za ostvarivanje nekog većeg i bržeg genetskog poboljšanja proizvodnih i reproduktivnih osobina populacije simentalske rase goveda. Iz tih razloga se centri za veštačko osemenjavanje odlučuju na uvoz semena za plansko oplođavanje bikovskih majki simentalske rase, ili pozajmicu mladih bikova iz inostranstva (čekajući bikovi) čije seme se upotrebljava za veštačko osemenjavanje matične populacije. Pored kriterijuma na osnovu kojih se vrši odabiranje krava u kategoriju bikovskih majki u radu su prikazani i rezultati mlečnosti, plodnosti, kao i telesne razvijenosti i ocene tipa bikovskih majki simentalske rase u centralnoj Srbiji.sr
dc.publisherInstitute for Animal Husbandry, Belgrade
dc.relationinfo:eu-repo/grantAgreement/MESTD/MPN2006-2010/20042/RS//
dc.rightsopenAccess
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/
dc.sourceBiotechnology in Animal Husbandry
dc.subjectSimmental breeden
dc.subjectbull damsen
dc.subjectbull siresen
dc.subjectselectionen
dc.titleSelection of bull dams in population of Simmental cattleen
dc.titleSelekcija bikovskih majki u populaciji simentalske rase govedasr
dc.typearticle
dc.rights.licenseBY
dc.citation.volume25
dc.citation.issue5-6-1
dc.citation.spage301
dc.citation.epage313
dc.citation.other25(5-6-1): 301-313
dc.citation.rankM23
dc.identifier.doi10.2298/BAH0906301P
dc.identifier.rcubKonv_573
dc.identifier.fulltexthttp://r.istocar.bg.ac.rs//bitstream/id/1921/184.pdf
dc.type.versionpublishedVersion


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