Birdsfoot trefoil in pasture?
My husband has a masters in horticulture so he's of great help in pasture management, however, he doesn't always know a lot about horse nutrition. He suggested we mix birdsfoot trefoil in with the timothy in one of our pastures as a nitrogen-fixing plant. However, it's a legume in the clover family. Apparently, it can taste a bit bitter and some horses don't much care for it. It's not a problem if the horses don't eat it since we're not going to plant a lot of it, just a little among the timothy as a way for the pasture to maintain good nitrogen levels so the timothy grows better.
However, I generally don't feed legume hay to my horses because my older horse Harley is at risk for IR (his levels are good currently, but that's probably because I've been so cautious about his diet). He also had a very bad reaction to alsike clover, which I know they shouldn't have at all (I had to close a pasture, plow it all under, and replant last summer).
The research that I've done doesn't say anything bad about birdsfoot trefoil, other than some horses don't like it and will eat around it. Does anyone here have any advice about it? Should I give my husband the ok to plant a bit of it among the timothy?