In the current study, 14 male Holstein calves aged 11-12 months were used from Usak Cattle Breeders Association Research Farm. this study lasting for 60 days, cattle and divided into 2 groups as control treatment. The feeding method, which is routinely applied in enterprise, was to group. addition same ration, 250 gr/head/day crushed anise seed powder feed additive poured on of treatment group ...