- Apr 15, 2013
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I have always heard 1/4 for smaller birds and 1/2 for larger. The thing that I have seen a lot of debate over is whether to do IM or SubQ. I think IM is preferred but I did SubQ because I used it on a three week old chick and was afraid to go that deep into the breast on such a small chick. 5 days is max for treatment.