YES HD, getting your feed tested is so important. Can save thousands
of dollars in feed not purchased.
Actually rained on alfalfa, unless it loses it's leaves, is fine from a forage
analysis/protein standpoint. Hay that turns yellow from rain has lost vitamins and minerals,
but the protein is still there. Of course, if it loses it's leaves...or is put
up late....that's totally different.
I was surprised when we ran forage analysis on yellow hay and it
still had just about as much protein as that that wasn't rained on.
We just don't turn our alfalfa if it gets rained on and wait to bale it until
it is dry enough. We lose some on top due to dryness, but mostly
it's fine if we don't rake it.