If you can't handle them without sedative then you can't administer the sedative in the first place. If you can handle them well enough to give them a sedative shot then you could just give them the vaccine shot you wanted to in the first place
It's a former law, and there a two of them, together called Rinderkennzeichnungs- und Rindfleischetikettierungsüberwachungsaufgabenübertragungsgesetz, a.k.a. RkReÜAÜG.
I think it takes time for the deletion to propagate through the fediverse