This research aim was to study the effect of addition biomineral Zn and probiotic fiber on performance of the female Brahman Cross calf weaning which conducted at the PT. Andira Agro in April to October 2014. This research was used T test for 10 Brahman Cross calfs weaning with an average age 5-8 months. They were divided into two treatments, the first treatment 5 calfs without addition biomine…