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Vzreja plemenskih bikov lisaste pasme od rojstva do odbire
Fidler, Darinka (Author), Klopčič, Marija (Mentor) More about this mentor... This link opens in a new window

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Abstract
Lisasta pasma je kombinirana pasma usmerjena v prirejo mleka in mesa. V Sloveniji je najštevilčnejša pasma goveda. Rejski program za lisasto pasmo je zastavljen tako, da se pri odbiri bikovskih mater spremljata tako prireja mleka kot tudi prireja mesa. Sestavni del rejskega programa je vzreja in odbira plemenskih bikov lisaste pasme, ki so namenjeni za osemenjevanje ali naravni pripust. Plemenski biki so plod načrtnega osemenjevanja bikovskih mater z elitnimi biki. Elitni biki večinoma izvirajo iz tujih populacij, občasno pa tudi iz domače populacije pozitivno testiranih bikov lisaste pasme. V diplomskem delu smo opisali selekcijsko shemo za lisasto pasmo in podrobneje predstavili življenjski krog pozitivno testiranega bika lisaste pasme. Predstavili smo tudi kriterije za odbiro bikovskih mater, kriterije za odbiro elitnih bikov lisaste pasme in kateri biki so se uporabljali za osemenjevanje bikovskih mater v zadnjih sedmih letih. Število bikovskih mater v zadnjih sedmih letih niha, njihova mlečnost pa se iz leta v leto povečuje. Največ bikovskih mater v zadnjih sedmih letih je bilo odbranih leta 2011, najmanj pa leta 2014. Povprečna mlečnost bikovskih mater lisaste pasme se je od leta 2010 do leta 2016 povečala za 1.000 kg. Največ elitnih bikov za osemenjevanje bikovskih mater je bilo na voljo leta 2015 in to kar 14. V letošnjem letu so med elitnimi biki na voljo tudi štirje genomsko testirani biki.

Language:Slovenian
Keywords:govedo, biki, lisasta pasma, vzreja, odbira, selekcija
Work type:Bachelor thesis/paper (mb11)
Organization:BF - Biotechnical Faculty
Year:2017
COBISS.SI-ID:3957384 This link opens in a new window
Views:920
Downloads:340
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Secondary language

Language:English
Title:Breeding of Simmental bulls from birth till positive performance test
Abstract:
The Simmental breed is a breed of dual-purpose cattle suitable for both milk and meat production. It is the most populous breed of cattle in Slovenia. Breeding program for Simmental breed include monitoring of milk and meat production – this is very important when we select bull dams. The rearing and selection of Simmental breeding bulls, using for insemination or natural matting, is an important part of the breeding program. The breeding bulls are the result of planned insemination of the bull dams with sire bulls. Sire bulls usually originate from foreign populations of Simmental breeding bulls, however, sometimes also from domestic populations of positive proof bulls. In the B. Sc. thesis, we describe selection scheme of Simmental breed and present in detail the life cycle of a positive proof bull. Likewise, we present the criteria for selecting of Simmental bull dams, selection criteria for Simmental Sire bulls and present the bulls used for the insemination of Simmental cattle in the last seven years. The number of Simmental bull dams in last seven years has been fluctuating, whereas their milk yield production is increasing in these years. The highest number of bull dams in last seven years were selected in 2011, while the least in 2014. The average milk yield of Simmental bull dams has increased for 1,000 kg from 2010 to 2016. The largest number of Sire bulls for insemination of bull dams was in 2015, where there were 14 Sire bulls available for insemination. Whereas this year there are also four genomic tested bulls available for insemination of Simmental bull dams.

Keywords:cattle, bulls, Simmental breed, breeding, selection, performance test

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