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Just wandering what age calves should be to give them the blackleg vaccine?
> administer to calves older than three months of age....I believe Alpha 7 requires no 21 day booster. Hope this helps
We do all the calves when we do spring workup on the cows. Some calves are only a couple of weeks old. Then in the fall at weaning we do them again and give a booster 21 days later.
> Just wandering what age calves
> should be to give them the
> blackleg vaccine?