20 years of testing simmental bulls on growth and carcass trait | 20 let testiranja bikov lisaste pasme na rastne in klavne lastnosti
2009
Janzekovic, M., Maribor Univ. (Slovenia). Fac. of Agriculture and life Sciences | Skorjanc, D. | Volk, M. | Brus, M. | Ocepek, M. | Toplak, A.
Faculty of Agriculture and Life Sciences carrying out since 1988 the testing of Simmental breed bulls - progeny test. Currently the 41th group of bulls is being tested. In this study, we processed the data from 1st to including 37th group in the period from 1988 to 2008. The aim of this study was to analyze the trend of some in the progeny test included phenotypic characteristics of tested Simmental bulls in the 20 year period. The growth and slaughter characteristics of 3798 housed bulls from 333 fathers were studied. For statistical analysis only the data from the bulls, which successfully completed the progeny test were included. The data from individual animals and tested groups were combined in six periods. Descriptive statistics were used for the parameters: weight and age at the housing, at the beginning of fattening and at slaughter, daily weight gain from housing to slaughter, net daily weight gain, carcass traits and conformation index.
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