Some cultures believe that eating an animal is the best thing you could do for it, as you are elevating its karma to a human level, which is above animal, consciousness wise, by involving the animal in aiding you by giving you strength, its seen as the highest purpose an animal can serve. But thats probably also dependent on the intentions and means of killing the animal. I dont usually eat meat because the industry is ghastly, but i dont think eating an animal is bad on its own.