Although not approved for use in poultry, the Ivomec Eprinex Pour-on for beef and dairy cattle is a Zero-withdrawl time med for meat and milk: http://merialusa.naccvp.com/view.php?prodnum=1111033
inchem.org is a good site for hunting down just about anything about any med (eprinex is widely used in humans for `worms' with some of the same problems, i.e., adverse reaction from all those parasites expiring suddenly):
http://www.inchem.org/documents/pims/pharm/ivermect.htm
List of nearly all `approved' meds for poultry, with withdrawl times (handy reference): http://www.cfo.on.ca/_pdfs/PoultryWithdrawalTimeChart-Mar30-07.pdf
inchem.org is a good site for hunting down just about anything about any med (eprinex is widely used in humans for `worms' with some of the same problems, i.e., adverse reaction from all those parasites expiring suddenly):
http://www.inchem.org/documents/pims/pharm/ivermect.htm
List of nearly all `approved' meds for poultry, with withdrawl times (handy reference): http://www.cfo.on.ca/_pdfs/PoultryWithdrawalTimeChart-Mar30-07.pdf