Phenotypic characteristics and heritability of m. longissimus dorsi chemical composition in Croatian Simmental bullsReportar como inadecuado




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Veterinary Archives, Vol.79 No.4 July 2009. -

The Simmental breed is a dual purpose breed widespread in the Republic of Croatia and represents more than two thirds of the total cattle population. In this research we focused on the heritability of chemical components dry matter, water, protein, fat and ash in musculus longissimus dorsi MLD and its phenotypic characteristics. The trial comprised 698 young bulls, which were sons of 68 sires chosen for artificial insemination AI, over a period of 13 years. Average chemical composition of MLD was as follows: dry matter 24.87 ± 0.04%, water 75.13 ± 0.04%, protein 20.63 ± 0.05%, fat ether extract 3.14 ± 0.06% and ash 1.10 ± 0.002%. We calculated heritability and phenotypic correlations among the chemical components and analyzed various influences for all components. All calculations were performed in SAS 8.0 Statistical Analysis System and Statistica 7.1 software. Phenotypic correlations between dry matter and water, protein, fat and ash were -1.00, 0.20, 0.50 and

-0.20, respectively. Correlations between water and protein, fat and ash were -0.20 -0.50 and 0.20, respectively. Correlation coefficient between protein and fat was -0.75; between protein and ash -0.05 and between fat and ash -0.10. All correlations were significant P



Autor: Igor Štoković - ; Department of Animal Husbandry, University of Zagreb, Faculty of Veterinary Medicine, Zagreb, Croatia Ivo Kar

Fuente: http://hrcak.srce.hr/



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