Biotechnology in Animal Husbandry - Institut za Stočarstvo

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The evaluation of breeding value ... results in decrease of number of bulls in populations, therefore their individual effect on the selection results is considerably greater. Conclusion Basic requirement of the modern cattle production is improvement and enhancement of the genetic capacities of animals for production of milk, meat and calves. In application of high quality breeding males with proven genetic potential will contribute to improvement of production and reproduction traits of the cattle population in Serbia. In this process, the evaluation of the parents' breeding value is one of the priorities. Application of linear methods in evaluation of breeding value contributes to significant improvement of the evaluation from the aspect of inclusion of more available information. BLUP is one of the leading methods used to achieve progress in population genetics, since it is possible to include own results and production results of individual animals. By combining the methodology of mixed model, method of least squares and selection index method, BLUP is applied world wide as standard. Acknowledgment Research was financed by the Ministry of Education and Science Republic of Serbia, projects TR 31053. Ocena priplodne vrednosti bikova simentalske rase za osobine mlečnosti u Srbiji V. Pantelić, M. Plavšić, S. Trivunović, S. Aleksić, Lj. Sretenović, D. Ostojić-Andrić, D. Nikšić Rezime Osnovu za svaki selekcijski rad predstavlja poznavanje kvaliteta bikova očeva koji se koriste za oplodnju, kao i način prenošenja važnijih svojstava na potomstvo. U osnovi najpovoljnijeg rešavanja problema ocene aditivne genotipske vrednosti osobina u govedarstvu leži BLUP metod (Best Linear Unbiased Prediction), koji se primenjuje u raznim varijantama zavisno od strukture podataka. Ovim istraživanjem je obuhvaćena 2.121 kontrolisana prvotelka simentalske rase, sa laktacijama zaključenim u toku jedne godine. Sve prvotelke su 133
134 V. Pantelić et al. se nalazile na imanjima individualnih poljoprivrednih proizvođača na području Republike Srbije. Ocena priplodne vrednosti bikova za osobine trajanje laktacije, proizvodnju mleka, mlečne masti, 4% MKM i procenat mlečne masti, izračunata je pomoću mešovitog modela (BLUP), u čiju jednačinu je uključen slučajni uticaj bika-oca i fiksni uticaj regiona, godine i sezone telenja. Ispitani su bikovi-očevi koji u dva ili tri regiona imaju 20 i više kćeri prvotelki simentalske rase. Broj prvotelki je bio od 22 do 215 po biku-ocu. Korišćenjem BLUP metoda za ocenu priplodne vrednosti bikova na prinos mleka, mlečne masti, saržaja mlečne masti i 4% MKM i formiranjem ranga dobijeni su rezultati koji pokazuju znatnu superiornost ili inferiornost priplodnjaka. References ĐURĐEVIĆ R., VIDOVIĆ V. (1994): Ocena oplemenjivačke vrednosti bikova simentalske rase CC i BLUP metodom. Biotehnologija u stočarstvu, 10, 3-4, 39-48. FREEMAN A.E. (1998): Dairy Cattle Breeding. Proceedings of the 6th World Congress on Genetics Applied to Livestock Production. Armidale, Australia. 23, 293. HARVEY W.R. (1990): Mixed model Least Squares and maximum Likelihood Computer Program. User, s Guiede for LSML MW and MIX MDL. LATINOVIĆ D., GRUBIĆ G., TRIFUNOVIĆ G., LAZAREVIĆ LJ., KOLJAJIĆ V. (1997): Selekcija ishrana i muznost goveda. NIP »Student« Beograd. MARKOVIĆ M (1999): Mješoviti modeli-BLUP i ANIMAL model u procjeni oplemenjivačke vrednosti bikova holštajn-frizijske rase. Doktorska disertacija. Poljoprivredni fakultet, Novi Sad. MIŠČEVIĆ B. (1995): Komponente varijansi i genetski trend osobina mlečnosti tokom prve i kasnijih laktacija krava simentalske rase. Doktorska disertacija. Poljoprivredni fakultet, Novi Sad. PANIĆ J., VIDOVIĆ V. (2006): Optimizacija modela oplemenjivačke vrednosti bikova simentalske rase. Biotechnology in Animal Husbandry, 22, 5-6, 11-20. PETROVIĆ M.M, LAZAREVIĆ R., LAZAREVIĆ LJ., ALEKSIĆ S., MIŠČEVIĆ B., PERKOVIĆ S. (1997): Proizvodni efekti selekcije aktivne populacije simentalskih goveda u Srbiji. Biotehnologija u stočarstvu, 3-4, 57-64. SCHAEFFER L.R., ZANG W. (1993): Proc. Open Session INTERBULL Ann.Mtg.Arhus, Denmark, INTERBULL Bulletin No.8. STOJIĆ P. (1996): Faktori korekcije osobina mlečnosti i njihov doprinos oceni priplodne vrednosti bikova i krava. Doktorska disertacija. Poljoprivredni fakultet, Beograd. SULLIVAN P.G., SCHAEFFER L.R., (1994): Fixed versus random genetic groups. Proceedings of the 5th World Congress on Genetics Applied to Livestock Production. 18, 482-485, Univ. of Gueleph, Canada.
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190 D. M. Ogah Blasco et al. (1984)
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198 Introduction V. Gerzilov et al.
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200 Results and Discussion V. Gerzi
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Results and Discussion Analysis of
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Analysis of applied biosecurity mea
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Study of biochemical polymorphism .
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Physiological aspects of behaviour
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Instruction for authors Papers for
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PETROVIĆ D.M., GUTIĆ M., BOGOSAVL
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Registration fee Registration fee i
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Институт за сточар
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