this is actually a continuation of this thread https://www.backyardchickens.com/forum/viewtopic.php?id=251889 Since the nature of my question is considerably different than my original thready I thought I would start a new thread. I have a hen with a nasty wound in her mouth that is badly infected (see the pics on the other thread). I want to give her an antibiotic to help her along. The only injectable antibiotic the feed store had was liquamycin LA-200 (oxytetracycline) Is this antibiotic suitable for chicken use and can someone reccomend a dose if so? The directions say to administer .5 ml for a 10lb swine. so if my hen weighs about 3lb I would figure about .15ml dose if I am using the same scale. I picked up some insulin syringes at walmart that are 1ml capacity and graduated in .1 ml units, so I think .15ml would be doable. seems like the way to do it is to inject under the skin on the back of the neck (not into muscle). Does it sound like I am on the right track?