Biotin is one of the B-vitamins that pigs require for efficient utilization of dietary carbohydrates, fat and protein. It has also been related to reproductive performance in sows and may be required for normal hoof development. Some research suggests that higher levels of biotin in grow-finish diets improves carcass fat, which may improve the shelf life of fresh pork products. According the NRC no biotin additions are required in diets for growing-finishing pigs since some biotin is present in most swine feed ingredients. However, most of the research on the effect of additional biotin on performance of growing pigs has been done with corn a