Parametry genetyczne cech pokrojowych krow pierwiastek rasy czarno-bialej i czerwono-bialej

• Autorzy: Kruszynski W , Pawlina E. , Wierzbicki H.

Warianty tytułu

EN

Genetic parameters of conformation traits in primiparous cows of Black and White and Red and White breeds

• Języki publikacji: PL

Abstrakty

EN

The aim of the study was to estimate genetic parameters (heritability, genetic and phenotypic correlations) of conformation traits in primiparous cows of Black and White and Red and White breeds. Records of conformation scores of 7,814 cows born between 19931996 were analyzed in order to estimate genetic parameters for 11 traits of conformation. The cows of Black and White (n = 2240) and Red and White (n = 4574) breeds were kept in 139 herds in the Śląsk Opolski region. Genetic parameters were estimated using an animal model and DFREML computer package. Estimated heritability ranged from 0.58 (capacity) to 0.06 (chest circumference). The highest genetic correlations were found between the total score and udder (0.81), capacity (0.91), and type and conformation (0.91). High genetic correlations were also found between linear traits of udder (fore udder attachment, udder depth) and the udder score (0.78 and 0.45, respectively). The results obtained indicated considerable differences between the analyzed breeds as far as correlations between traits are concerned.

Słowa kluczowe

PL

bydlo; cechy pokrojowe; bydlo czarno-biale; pokroj; bydlo czerwono-biale; korelacja genetyczna; krowy pierwiastki; bydlo mleczne

• Wydawca: -
• Czasopismo: Medycyna Weterynaryjna
• Rocznik: 2007
• Tom: 63
• Numer: 02
• Opis fizyczny: s.196-200,tab.,bibliogr.

Twórcy

autor

Kruszynski W

• Uniwersytet Przyrodniczy, ul.Kozuchowska 7, 51-631 Wroclaw

autor

Pawlina E.

autor

Wierzbicki H.

Bibliografia

• 1. Cue R. I., Harris B. L., Rendel J. M.: Genetic parameters for traits other than production in purebred and crossbred New Zealand dairy cattle. Livest. Prod. Sci. 1996, 45, 123-135.
• 2. Graser H. U., Smith S. P., Tier B.: A derivative-free approach for estimating variance components in animal models by Restricted Maximum Likelihood. J. Anim. Sci. 1987, 64, 1362-1370.
• 3. Guliński P., Niedziałek G., Młynek K.: Próba określenia skuteczności systemu liniowego w ocenie pokroju czarno-białego bydła mlecznego Zesz. Nauk. Prz. Hod. 2003, 68, 345-353.
• 4. Guliński P., Młynek K., Litwińczuk Z., Dobrogowska E.: Heritabilities of and genetic and phenotypic correlations between condition score and production and conformation traits in Black-and-White cows. Animal Sci. Pap. Rep. 2005, 23, 33-41.
• 5. Łukaszewicz M., Sender G.: Conformation traits in selection indices in dairy cattle - a review. Pr. Mat. Zoot. 1999, 55, 41-49.
• 6. Meyer K.: Restricted Maximum Likelihood to estimate variance components for animal models with several random effects using a derivative-free algorithm. Genet. Select. Evol. 1989, 21, 317-340.
• 7. Meyer K.: DFREML User Notes version 3.0 b. Animal Genetics and Breeding Unit. University of New England, Armidale, Australia 1998.
• 8. Pawlina E., Kruszyński W., Zieleziński M., Bosek M.: Zależności między wymiarami wymion kóz w pierwszej i drugiej laktacji. Medycyna Wet. 2005, 61, 204-206.
• 9. Person R. E., Lucas J. L., Vinson W. E.: Ability of subjective linear scores to represent cow differences on objective body measurements. J. Dairy Sci. 1987, 70, 2610-2615.
• 10. Rogers G. W., McDaniel B. T., Dentine M. R., Funk D. A.: Genetics correlations between survival and linear type traits measured in first lactation. J. Dairy Sci. 1989, 72, 523-527.
• 11. SAS User's Guide. Version 8.0 Edition. SAS Institute Inc., Cary, NC 2000.
• 12. Serrano M., Perez-Guzman M. D., Montoro V., Jurado J. J.: Genetic analysis of udder traits in Manchega ewes. Livest. Prod. Sci. 2002, 77, 355-361.
• 13. Vinson W. E., Person R. E., Johnson L. P.: Relationships between linear descriptive type traits and body measurements J. Dairy Sci. 1982, 65, 995-1003.
• 14. Vukašinović N., Moll J., Künzi N.: Genetic relationships among longevity, milk production and type traits in Swiss Brown cattle. Livest. Prod. Sci. 1995, 41, 11-18.
• 15. Wójcik P., Czaja H., Majewska A.: Związek pomiędzy cechami budowy bydła czerwono-białego a jego wydajnością mleczną. Zesz. Nauk. Prz. Hod. 2003, 68, 57-65.
• 16. Żarnecki A., Morek-Kopeć M., Jagusiak W.: Genetic parameters of linearly scored conformation traits of Polish Black-and-White cows. J. Anim. Feed Sci. 2003, 12, 689-696.