First of all, all give the penicillin under the skin NOT in the muscle. That is not just my idea. I was told to do that by the goat vets at UC Davis and the ones at WSU. That way you are far less likely to get it in a vein or hit and injure a nerve. I would give her at least five or six cc's of penicillin subq. As I remember I gave 10 cc's to a full sized dairy goat so I think 5 cc's would be about right for your Nigerian. Unlike many drugs, it is hard to overdose on penicillin.
Are you saying that the goat vets at the University of California at Davis, the goat vets at Washington State University, and the Association of Small Ruminant Practitioners don't know what they are talking about? All of them will tell you (at least they told me) that IM medications for goats should be given subq no matter what the label says. For the record I talked to the university goat vets in person and I have attended several seminars given by the Association of Small Ruminant Practitioners and they all said the same thing. Not all vets belong to the Association of Small Ruminant Practitioners and that may account for the difference of opinion.
