Sex ratio in foal crops sired by purebred Arabian stallions in the years 1989–2010
DOROTA SOBCZUK
Department of Animal Breeding and Use, Institute of Agricultural Science of Zamość, University of Life Sciences in Lublin, Szczebrzeska 102, 22-400 ZamośćAbstract
The sex ratio was analysed in a population of 3080 purebred Arabian foals born in the years 1990–2011, sired by 127 Arabian stallions. The study evaluated the influence of the sire and the year of birth on the ratio of colts to fillies. In crops sired by 86 stallions, only two, Eurykles 2001 (Emigrant – Eutona) and Salar 2000 (Ecaho – Saba), were found to have a significant effect on the sex of the foals. Despite the higher percentage of fillies among the Arabian foals in 8 years of birth out of the 22 analysed, the influence of year of birth on sex ratio was highly significant only in 2007.
Keywords:
sex ratio, purebred Arabian horsesReferences
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Department of Animal Breeding and Use, Institute of Agricultural Science of Zamość, University of Life Sciences in Lublin, Szczebrzeska 102, 22-400 Zamość
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