My go-to feed is Allen & Page Rare Breed Sow Rolls. But I am going to have to switch to the Rare Breed Sow Pencils this year as they've stopped making the rolls.
The
A&P Smallholder Range range isn't organic but use all non-GM British-grown inputs, and from non chemically-intensive farms. No soya, which I prefer.
Your weaners may benefit from a bit more protein up to 4 months old, so you could get the A&P rare breed grower or weaner/finisher feed for them. If your mangalitza girls don't regain condition over time, you could give them some of the finisher feed for a while too.
Are the sows back in pig?