by: Dr. G.F. Kennedy
All my routes to therapy in sheep and goats are subcutaneous or oral.The only exception would be intravenous in critical situations where replacement therapy is needed and they are few. The time lag between subcutaneous and intramuscular injection is minimal and by maximizing dosage, therapy can be extended. Longer slaughter withdrawals may be indicated. One might argue that PG600 should be IM, I have used it subcutaneously with expected results.
Subcutaneous injection results in less tissue damage and less discomfort for the animal. I avoid the neck as an injection area and prefer over the rib cage with a 5/8 16 gauge needle in adult or weaned lambs. I like the flank area in lambs or over rib cage. Stay out of the axillary space, under the front leg.