Izvorni znanstveni članak
PEDIGREE ANALYSIS OF THE CROATIAN AUTOCHTHONOUS CATTLE BREEDS: MANAGEMENT OF CONSERVATION STRATEGY
Ante Ivanković
orcid.org/0000-0002-2523-8694
; Agricultural Faculty, University of Zagreb, Zagreb, Croatia
J. Ramljak
; Agricultural Faculty, University of Zagreb, Zagreb, Croatia
N. Kelava
; Agricultural Faculty, University of Zagreb, Zagreb, Croatia
M. Konjačić
; Agricultural Faculty, University of Zagreb, Zagreb, Croatia
Sažetak
Autochthonous Croatian cattle breeds belong to groups of endangered European cattle breeds. Genetic diversity is essential for preservation of adaptive potential of populations and improvement of production potential in the future. Monitoring genetic diversity is the basis for effective conservation programmes. Pedigree analysis is a useful tool in the management of conservation strategy. In the work presented here, we investigate a pedigree information on autochthonous cattle breeds in order to get an insight into population structure and management of the genetic variability. The analysis included 3017 records of Istrian cattle, 578 records of Slavonian-syrmian podolian cattle and 898 records of Busha, registered in the Herd Book from 1994 to 2009. The positive population trends are observable in increased number of animals per breeds and frequent calving recoreded in the Herd Book, with a stagnation from 2002 to 2004. High coefficient of inbreeding level and specific relationship with high average relatedness coefficient in the population of Istrian cattle indicates the necessity of changing the breeding management. The main reason is utilisation of sires mostly born in the same or related herd and the interchange of animals with other herds is not frequent. In the population of Slavonian-syrmian podolian cattle a redesign of the mating scheme is needed. Share of the high inbreed animals in the population of Istrian and Slavonian-syrmian podolian cattle is relatively high. The lowest inbreeding and lowest average relatedness coefficient are found in Busha population. The obtained information will be useful in implementing a conservation program in the Croatian autochthonous endangered cattle breeds.
Ključne riječi
pedigree analysis; genetic variability; cattle breeds; conservation strategy
Hrčak ID:
60704
URI
Datum izdavanja:
1.7.2010.
Posjeta: 1.594 *