Prabhupāda: Now, these foodstuffs are meant for human being. They are not meant for cats and dogs. You should produce more of this foodstuff. And the remaining balance, the skin, you can offer to the animal. They will eat. You take the substance, and the outward, external skin you offer to the animals, and he will eat. She gives you milk. This is cooperation. You produce . . . man can produce fruits and flowers, grains, take the substance, and the rejected portion give to the animal. She gives you milk. You require milk. This is cooperation.