I got the beet pulp SHREDS with no molasses- mine hate the pellets and will not touch it. The shreds took them a couple of days to get used to- I just soaked a handful at first and put it in their feed along with their hay. After about the third day they were really eating it up, so I increased it slowly up to more. Now they LOVE it. It seems that anything that is new, they think you are trying to poison them, LOL
Absolutely, BLESS YOU for taking these two in!!! I agree, if you are not going to use him for breeding, have the old guy gelded. It will make a difference and at least you will later be able to pasture them together and not worry about babies.
Yes, at this point, he would love to 'get his groove on' with the filly, LOL and is probably thrilled to death to see another horse of his own kind. I have to say, if he is that active, he must be doing great and feeling good!! That is awesome!!
Make sure their teeth are in good shape, and with a regular worming program, you probably wont even recognize your filly in the spring!!! Minis are such easy keepers, it makes me SO sad to see them in bad shape and thin- they must really LITERALLY be fed nothing and starving to get that bad.
It appears they are in good hands now though! Welcome to the Forum!! You will find a TON of great advice here and a zillion years experience and knowledge by the folks here, who are always more than willing to help.
Just remember with adding new feed, start it out with just a handful- and the oil a tiny bit, because they are going to turn their nose up at it at first.......... Once they eat a small amount readily, they are ready for more.