Fertility efficiency of bulls depending on their daily body weight increase up to the 12th month of their lives

Central breeding stations are the only source of getting breeding bulls in our country. Feeding rations used there, however, result in high daily body weight increase of those bulls. Therefore a research work has been undertaken to analyse the impact of the given method of feeding on the values of b...

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Published inZeszyty Naukowe Akademii Rolniczej we Wroclawiu. Zootechnika (Poland) no. 125
Main Authors Krysa, M. (Akademia Rolnicza, Wroclaw (Poland). Instytut Hodowli i Technologii Produkcji Zwierzecej), Jaczewski, S, Nowicki, B
Format Journal Article
LanguagePolish
Published 1980
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Summary:Central breeding stations are the only source of getting breeding bulls in our country. Feeding rations used there, however, result in high daily body weight increase of those bulls. Therefore a research work has been undertaken to analyse the impact of the given method of feeding on the values of body conformation and on some chosen fertility efficiency indexes. Reatures of breeding bulls of black-white and red-white bulls have been compared. The conclusion is that feeding rations for such bulls should be reconsidered and changed, as they result in too high increase of body weight and poor reproductive efficiency.(Krysa, M.; Jaczewski, S.; Nowicki, B.)
Bibliography:L50
8100820
L10
ISSN:0137-2017