the animals were breed with the gene removed. there is no injection that shuts the myostatin gene off.
a bb will need to be born with the gene removed. eugenics anyone...
I know that the animals were bred without the gene, but there are companies working on drugs to temporarily halt the genes that regulates myostatin or temporarily halt the myostatin regulating hormones. If this "drug" is perfected, then a "CONTROLLED" muscle growth situation can be created with the potential being for people who have muscle wasting conditions...even the loss of muscle as one ages could be reduced, inhibited all together or even added to. This alone would cut down tremendously on things like falls from weakness, osteoporosis, etc which the insurance companies would love. In so much as BB goes...you know what getting a hold of that drug or product would mean.....MASS MONSTERS. I wonder if the muscle gained in this fashion would be truly permanent..unlike the steroid effect of up and down muscle loss and gain.
Anyone born with this gene removed would essentially be crippled by that action. They would never be able to engage in any activity, because even the least strenuouus activity would constantly spur uncontrolled muscle growth and soon the individual would be handicapped by his own muscles.