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INBREEDING OF AUTOCHTHONOUS CATTLE BREED BUSHA

Mato Čačić ; Hrvatska poljoprivredna agencija, Zagreb, Hrvatska
Marija Špehar ; Hrvatska poljoprivredna agencija, Zagreb, Hrvatska
Dalibor Janda ; Hrvatska poljoprivredna agencija, Zagreb, Hrvatska
Vesna Bulić ; Hrvatska poljoprivredna agencija, Zagreb, Hrvatska
Zdenko Ivkić ; Hrvatska poljoprivredna agencija, Zagreb, Hrvatska
A. Kljujev ; Hrvatska poljoprivredna agencija, Zagreb, Hrvatska
R. Jureković ; Hrvatska poljoprivredna agencija, Zagreb, Hrvatska
Zdravko Barać ; Hrvatska poljoprivredna agencija, Zagreb, Hrvatska

Sažetak

The purpose oft he study is to determine actual and predict trend of the future rate of inbredding in breeding of autochthonous cattle breed busha based on pedigree data. Average generation interval is 5,96 years, which confirms late maturity as breed characteristics. Inbreeding factor and relatedness of units are 1,27% and 1,78%, and are considered low with respect to comparative researches. But results of proportion and average inbreeding factor of inbreed units in reference population give enough information for prediction of intensive growth of inbreeding factor, i.e. significant decrease of effective population size in breeding busha. The conclusion is supported by positive and narrow correlations between traced ancestors generation, and relatively small busha population with 341 breeding heads (CAA 2012). We assume that the rate of inbreeding in busha population is considerably larger, but it is not possible to determine it based on pedigree analysis because of its poor informativity (equivalent of complete generations = 1,41). In order to obtain more reliable information on inbreeding rate in busha population, it is necessary to determine it by methods of molecular genetic on the DNA structure leve. With consideration on the small population, special measures of planned breeding strategies must be applied, with goal of brining inbreeding to the minimum possible rate.

Ključne riječi

busha; inbreeding; pedigree analysis

Hrčak ID:

89972

URI

https://hrcak.srce.hr/89972

Datum izdavanja:

25.8.2012.

Podaci na drugim jezicima: hrvatski

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