If we follow the normative ethics and the golden rule completely tells us: we should do to others what we would want others to do to us, in other word, what we should do to others what we would want others to do to us. Ok lets back to my question, Since I do not want any one going to kill me, so I should not kill any one. Since we are the top of food chain, we are murderers, because we eat meat everyday and even if we have not killed the animals by our self, we are indirectly killing the animals. A lot people have opinion, because we are the top of the food chain, and the rule of nature is we should eat meat for live, so in this way we should just follow the natural.Is it wrong in principle to raise and kill animals so that human beings can eat meat and fish? Does it stop being wrong if the processes involved are carried out humanely? If you accept that animals have rights, raising and killing animals for food is morally wrong.

An animal raised for food is being used by others rather than being respected for itself. This is a clear violation of the animal's rights.No matter how humanely an animal is treated in the process, raising and killing it for food remains morally wrong. But: This is using 'rights' in a rather technical philosophical sense.

When people talk about animal rights colloquially, they are usually talking about animal interestsEven the most humane forms of rearing and killing animals for food always violates the animal's most basic interest - to continue living. Virtue Theories As we know before about Virtue theories, the theory says: do not kill, we must need learn these rules, and make sure we reduce to demand of the meat. However, also a lot people would be say to eat meat is in order to let body better.Consequentialist We should act so as to increase the amount of goodness in the world Raising and killing animals for food is cruel and so reduces the total amount of goodness in the world If everyone was a vegetarian, there would be no demand for meat If there were no demand for meat no one would raise and kill animals for food Therefore if everyone was a vegetarian, the total amount of goodness in the world would be higher Therefore everyone should be a vegetarianHowever, you may want to ask yourself whether it matters that individual consumers don't themselves commit the wrongful acts of raising and killing the animals. it, and will make no difference to the amount of goodness inThe meat business is so huge that the loss of an individual consumer will make no difference to it, and so will make no difference to the amount of goodness in the world.