Wormer?

[Silver Marten]

What do I need worm 1 year old cows with?

Emily

[myersfarm]

I would go to vet or a friend that had cows and get what they use...it would be cheaper that way instread of buying a big bottle for only one cow

[rancher1913]

ivermectin is what we use a lot. vet supplies have different size bottles and you use so many cc's to body weight. most packages will say something like treats 20, 550 pound calfs, so that same package would treat about 10 full grown cows.