Peanut hay for cattle usually means one of two very different things: perennial peanut hay, a premium legume hay grown in warm regions like Florida, or peanut vine hay, the leftover vines from harvested peanut fields. The first is a high-quality forage; the second is variable and needs more caution.
Perennial peanut hay
Perennial peanut (a relative of the peanut, grown for forage) is a deep-rooted legume that tolerates drought and sandy soils across the Gulf Coast and Southeast. Good hay tends to have protein in the mid-teens and good digestibility, comparable to a decent alfalfa. Because it is a legume, it can supply protein and calcium that grass hays lack. It is also usually more expensive than ordinary grass hay and is grown in a limited range.
Peanut vine hay
After a peanut harvest, vines and leaves can be baled. Quality depends on how it was handled. Rain on cut vines leads to leaf loss and mold. Moldy vines can carry aflatoxin and other toxins, so cattle should never be fed hay that smells musty or looks dusty and discolored. Buy from sellers who can show you a lab analysis, and watch for dirt and sticks in baled vines.
Whole peanuts and peanut byproducts
Peanuts are high in protein and oil. Some producers use cull peanuts as a supplement, but fat above a modest level can reduce fiber digestion, and moldy peanuts are an aflatoxin risk. Peanut hulls are mostly fiber with little nutritional value. If you plan to feed any peanut byproduct, talk with an extension nutritionist first.
Feeding tips
- Test the hay: crude protein, energy, and moisture tell you what you really have.
- Introduce gradually: switch over a week or so.
- Store dry: keep bales off the ground and covered; wet bales mold.
- Balance the ration: peanut hay is high in calcium and protein, but you still need phosphorus and trace minerals. Offer a free-choice mineral.
- Watch for bloat: legume pastures cause bloat; hay is much safer, but go slowly with hungry cattle.
For other hays, compare brome hay, teff hay, and clover hay.
Bottom Line
Perennial peanut hay is excellent cattle forage if you can get it; peanut vine hay is fine when clean, dry, and tested, and risky when moldy. Ask your veterinarian before changing the diet, particularly if you suspect moldy feed. This is general information, not veterinary advice.
