Can anyone enlighten me as to the difference between the vetrx for goats and sheep and the one for chickens? I've looked at the ingredients and they are identical as listed though they don't give quantities or percentages. I picked up the wrong one at the co op the other day and need to know if it's necessary to exchange it. We got our replacement order of chicks in this morning and they are in MUCH better shape. We lost the entire first order due to extensive shipping time and cold weather. So far we have only lost ONE of this batch.