Oxbow is high quality of hay and no chemical or nasty pestles were used. I heard that oxbow hay were chopped off by hands instead of trackers.
Kaytee – NEVER go for it! Most of times, they are sharp and tend to poke rabbits’ or rodents’ eyes. The pestles are in the hay. Kaytee hay is same company with fiesta pellets (the worst of all animal pellets I have ever read/heard/notice that can harm to animals seriously in long terms.) It make sense why kaytee hay is horrible.
KMS? Do you mean KM (Kleenmama’s Hayloft)? If that so, I never got it for my bunnies but it is another option to get different “flavor” of hay like bluegrass hay. I was planning to get 45lbs of bluegrass hay to see if my bunnies like it or not and reduce my allergy to hay. Unfortunately, this year blue grass hay is mixed with alfalfa hay for whatsoever reason KM said via email about problems with farms that I don’t remember. We will have to wait for next year to see if they won’t mix with alfalfa again.
If you get a box of hay from KM or Oxbow and not happy with the quality of hay like hard hay or whatsoever, you can return them and get new box again for free.
If you get hard hay, please return them ASAP, my roommate’s guinea pig died from it.
If hay color is yellow or brown, it means that nearly or no nutrition exist in hay. Just a food without vitamins/minerals. Make sure hay is green. Green hay is sign of there is a lot of nutrition available for rabbits to stay healthy.