I think it came from years ago when a minimal amout was effective. Six grown peafowl drink around 1 gallon per day. Apparently after arsenic quit being used as a wormer people turned to safeguard but after years of use it has become nearly ineffective in many parts of the US as some people did...
My local feed store is huge and they carry it. It is a generic brand around $27 for 50lb. If your local feed store doesn't carry it it is definitely not cost effective. I think liquid is always cheapest but in rainy months they are more likely to drink from a puddle than a waterer. Next time I...
I used the calculator on the safeguard site http://marsyt.com/turkey.php It is for a six day dosing and I quadrupled it even then I had to use the .05% pellet and not the stronger .5% which the calcualtor is designed for.
They recommend 2.6oz per 50lbs of feed - I quadrupled this to 10.4oz...
When I really don't feel like catching them individually in low water consumption months I use .05% fenbendazole alfalfa based pellets and mix them in with the feed. I use the dosing info for turkeys listed on bag. This is .05% not the .5% used for horses. I haven't seen this listed as an option.