Can a turtle eat rabbit pellets?

No, rabbits can only eat pellets made specifically for rabbits -- and only high-quality ones that are healthy (not all of them are). Pigs and rabbits have very different digestive systems, and very different nutritional needs: they don't eat the same foods and can't eat the same pellets, or else they'll get sick. For instance, rabbits are herbivores, but pigs are omnivores. See the related questions below for more details and helpful links.