Steer Manure

[CParker]

I've been adding steer manure to our vegetable gardens since I was little, since its super cheap and readily available. But now I'm starting to worry that the cattle producing this manure have likely been given loads of antibiotics and/or hormones. Could this potentially be passed into the composted manure, and should I be concerned about it?

[JamieCatheryn]

Proper composting (hot, aerobic composting) will destroy artificial hormones and antibiotics. It's possible for bacterial contaminants like e. coli to survive composting so that is a possible danger, but we use it anyway in our garden.

[cymbeline]

We just found out that our dogs got hookworm from the manure we used this summer. UGH. We won't be using it again.