The weight gain in 1/4 Simental and 3/4 Nelore crossbred heifers was evaluated using an experimental method of castration, which consisted of stainless globes intra-uterine introduction. A total of 100 nulliparous heifers, destined to slaughter, aging from 12 to 24-months old and averaging 275kg were used. The animals were randomly distributed in four experimental groups: G1: control; G2: sterilized heifers plus application of organic modifier; G3: sterilized heifers; and G4: non sterilized heifers plus application of organic modifier. It was concluded that G2 showed higher weight gain - 140,50kg and 0,578g/day vs 108,58kg and 0,447g/day (G1), 103,73kg and 0,427g/day (G3), 102,68kg and 0,423g/day (G4). The sterilized heifers plus application of organic modifier is a method of castration recommended to the cattle farmers.
heifer; sterilization; weight gain; stainless globes; organic modifier
