[Ly&Pigs]

Rabbits worded her post correctly. You can feed alfalfa based pellets until they are anywhere between 6 months and one year. Then at either 6 months or 1 year (or anywhere inbetween) you can change to timothy based pellets.

On the hay, you can feed alfalfa hay as a supplement for the first few months or as an occasional treat for older pigs, but they always need grass hay from the day they are born such as timothy, orchard, sweet meadow, bluegrass, bermuda, etc.