Open AccessOptimisation of the breeding value model of Simmental bull sires
Author(s) -
Jovanka Panić,
Vitomir Vidović
Publication year - 2006
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/bah0606011p
Subject(s) - zoology , milk production , yield (engineering) , lactation , biology , milk fat , mathematics , food science , pregnancy , materials science , genetics , metallurgy , linseed oil
In this research 245 cows were included. They are daughters of ten sires, and they realized 548 lactations in the period from year 2000 to 2003. Data were used from two cattle farms, "Backa" and "Pobeda" that are located on government property "Krivaja". In this research influences of systematic factors like farm, year, season or lactation have been included. Breading values are evaluated for all qualities (milk yield, fat yield, fat percentage and persistency of milk production). Sires are ranked based on average milk yield of his daughters.