摘要：Among the most important breeds of sheep, used for the milk production in Croatia, are the sheep from Pag, Brač, Cres, Istrian and Travnik΄s sheep, different crossbreeds and, recently, East Friesian sheep. The aim of the research was to determine the genotype effect on lactation period, milk yield and protein and fat content, which are important in cheese making. The longest lactation period (213 days) had East Friesian sheep, while the highest total milk production (294 kg) and the highest production of milk fat (13.38 kg) and proteins (11.88 kg) had crossbreeds (Cres sheep x East Friesian x Awassi). However, the highest content of milk fat (8.12 and 7.81%) and proteins (6.36 and 6.26%) were established in Istrian and Pag sheep milk. The longest milking period (145 days) and the shortest suckling period (28 days) was found in Pag sheep, while the longest suckling period was found in Istra (78 days) and East Friesian (74 days) sheep. The least milk in suckling period (17.46 kg or 13.38%) was sucked by lambs of Pag sheep, and the most by East Friesian (111.18 kg or 39.39%) and Istra sheep lambs (94.3 kg or 42.95%).
