Federal Register Final rule: FDA is amending the animal drug regulations to reflect approval of a supplemental new animal drug application filed by Intervet, Inc. for use of bambermycins Type A medicated articles to make Type B and Type C medicated feeds used to increase rate of weight gain in pasture cattle (slaughter, stocker, feeder cattle, and dairy and beef replacement heifers) when consumed free-choice or hand-fed at a rate of not less than 10 mg nor more than 40 mg bambermycins per head per day. To view this final rule, click here.