I have had an occasional vetch in our pasture when we had our homestead though I don't know what kind.
Here is a thread where it was used with other plants:
Ive already been broadcasting. By which i mean throwing it up in the air by hand and walking around the field. Sweet clover, alfalfa, cicer milk vetch, amd sanfoin. I can get those seeds at my local seed supply. Id like to feed them to the cattle and get them to distribute them once i wean them.
https://permies.com/t/86359/Growing-permies-silage-hay#710716
Maybe others will chime in.