Анотация: The aim of the experiment was to study the effect of the inclusion of palm oil in the female lambs. The trial was conducted with 20 Ile de France lambs, reared in the Experimental farm of the Institute of Animal Science - Kostinbrod for a period of 30 days. The animals had equal live weight and the same date of birth. They were divided in two groups: control ( n = 10 ) and experimental ( n = 10 ). The lambs of the latter received palm oil in amount 150 g/animal/day, derived from the product Palm Fat 85. The data was statistically analysed through Data Analysis, EXCEL, 2016 of Microsoft. Thе dietary inclusion of palm oil did not affect the live weigh and the weight gain of the lambs. The traits increased by 30 g and 0.3 percent respectively for the live weight and the average daily gain