Open AccessNon-genetic source of variation for traits measured in performance test of simmental bulls: (II) Body development traits
Author(s) -
Vladan Bogdanović,
M.M. Petrović,
Radica Djedović,
Predrag Perišić,
R. Djurdjevic
Publication year - 2007
Publication title -
biotechnology in animal husbandry/biotechnology in animal husbandry
Language(s) - English
Resource type - Journals
eISSN - 2217-7140
pISSN - 1450-9156
DOI - 10.2298/bah0704019b
Subject(s) - herd , biology , body weight , zoology , statistical significance , lower body , birth weight , genetics , statistics , medicine , endocrinology , mathematics , pregnancy
Data of 371 Simmental bulls tested at the A.I. Centre "Velika Plana" were analyzed in order to estimate year and month of birth, test-group, herd of origin and body weight effects on body measurements and body development indices. These two groups of traits were considering as body development traits. All observed traits were measured at the start as well as at the end of test. Birth year was significant source of variation for all body development traits, while significance of month of birth was expressed at different statistical levels. Herd of origin effect was gradually reduced over the test, while test-group effect was significance only for body measurements. For body development indices herd of origin have no effect, while test-group effect was significant at different statistical levels. Body weight was very significant source of variation for all body development traits. .