EN
The performed cytogenetic analysis included 454 young Leine ewes, aged 3-8 months, coming from heterosexual twins and multiplets. Out of them, the studied 431 animals had a normal diploid chromosome number - 54,XX. Leukocytic 54,XX/54,XY chimerism was identified in 23 young ewes, which makes 5.06% of the studied group of animals.