It's funny, this post everyone seems to be steering me toward getting them hay and forgoing the feed.
I wanted them to be all grass-fed but their condition was so poor that people thought grain was necessary.
I believe you are the person who posted pics of very hungry cows with the fairly new pole barn with a tin (green?) roof and some plank walled pens some time back.
If you are not then my apologies.
If you are - read on.
In fact you are getting advice that is valuable if you have cows that are in good condition.
Yours are / were not.
Your animals while not totally starved out - were in very bad shape - making your situation far different from what many here may realize.
Is the feed you bought expensive?
Is the feed you bought necessary?
In my opinion yes.
Is it more expensive to bring a cow back than keep her in decent shape?
Look - people talk money because that is what cows are supposed to do - make you money.
In this case money is not the answer.
Bringing them back to decent condition and out of the boney state they were in is the important job.
Keep doing what you are doing.You put them in that condition
and now you need spend the money to bring them back.
If it was summer time the grass would be the best - it is winter - lousy hay and decent grain will give you conditioning.
Ignore any negativity here on the cost and continue to do the right thing - or as I once stated - get rid of the cows.