SUMMARY
Dorper (DO) is a meat-specialized hair composite breed, intensively selected for growth rates, carcass quality, unselective grazing. The aim of the current comparative study was to evaluate the adaptability and performance of DO breed under Hungarian and Romanian rearing conditions. DO breed was introduced into Hungary to Debrecen University in 2008. Under Hungarian rearing conditions the DO breed maintained its non-seasonal reproduction and reproductive precocity, with maiden ewes being put to ram starting the age of 9 months. Lamb crops of 2 weaned per year are common under proper management and feeding conditions. In Romania DO breed was introduced starting 2007, with the heard-book and genetic improvement plan of the breed being established in 2009. Under Romanian farming conditions the DO rams are usually used as terminal sires which are crossed with indigenous Turcana and Tsigai breeds, being preferred by the farmers to sire the crossbreds because of the high growth rates and non-selective grazing of the crossbreds. Fertility of DO ewes and survival rates of the DO sired lambs until weaning were not affected when compared to native Turcana breed. It was concluded that DO breed has adapted and performs extremely well under both Hungarian and Romanian rearing conditions.