I suppose it's possible. We eaised cows for years on straight alfalfa and never had a problem, dairy herds in some areas are fed alfalfa their entire lives and don't ssem to suffer any ill affects. I'ld talk with a knowledgable large animal vet in your area.
> I was told that feeding cows
> straight alfalfa would harm their
> kidney. How much is this true? So
> I feed them wheat or Oak with the
> alfalfa or is straight alfalfa ok.