extreme growth in muscle is due to a mutation in the myostatin gene, which results in the
production of increased number of muscle fibers (hyperplasia). Breeders choose the cattle that
clearly demonstrate the myostation defect. They choose the cattle that has the most muscle mass
so they can gain the best out of their offspring. By doing so they also eliminate the undesirable
characteristics in the species. They then artificially inseminate the female. One implication of the
Belgian Blue Cattle is the health and survival of this species. They suffer from crippling joint
and bone problems, also brought on by a lack of sufficient space