If you have horses that are hard keepers or need to gain weight, you can supplement with beet pulp or rice bran. Rice bran you only feed about a pound a day so that's cost effective. Beet pulp is very light weight dry and holds a lot of water when you soak it so it can help hydrate a horse if you have one that's reluctant to drink. I personally feed Purina Enrich 32 to my colt who is on a coastal/jiggs hay diet with about half a pound of alfalfa pellets. If you feed alfalfa exclusively, I believe you would need to feed Purina Enrich 12 as it has a lower calcium content. I know for a fact Gulf Tex on Spencer carries Enrich 32 as that's where I buy it. Steinhauser's in Alvin also carries it.