Bodhisattva intends to not reach nirvana in a short as the motto of the Theravada Buddhism. Intends to circulate a further deaths. To send humans to reach nirvana before self. The spirit of Buddha, even in samsara have not err in sin that is not charity. And a passionate attachment in samsara. Wish to help animals suffering by accepting them yourself.
In my opinion, there are some ideas of Mahayana Buddhism, which it matches the Bodhisattva. Such as helping to save mankind from sin unto the end. This is in terms of thinking and practice is not to kill animals and eat meat of any kind is vegetarianism itself. And not to encourage people kill animals as well, it is not creating another snare action itself. But on the other hand of Theravada Buddhism teaches us that we just do not kill animals, but eat meat. And it is a lot more to encourage people to kill animals just because consumers want to meet the needs of humans. And then as a response to the artifice of man only to survive each day to survive. Regardless of the animals that have consumed every one of us only eat the sake of killing.