I have a pre made salad mix from the store that is going bad and I'm wondering if I can feed this to my sheep? They are just about 3 months old and I feed it to my goats (they'll really eat anything) and they do just fine. It mainly has iceberg lettuce but there are bits of red/purple cabbage and carrots. Thanks in advance! I don't prefer that it goes to waste and originally it was going to my rabbits but iceberg seems to be bad for them.