Certainly in Christianity it is forbidden to kill, but we believe that there is a difference between the life of a human being and the life of the beasts. It is necessary for man to kill animals in order to have food to eat.
Man can eat grains, vegetables, fruits, and milk.
Human beings are meant to eat vegetarian food. The tiger does not come to eat your fruits. His prescribed food is animal flesh. But man's food is vegetables, fruits, grains, and milk products. If the killing of an animal is for giving food to the hungry, then it is justified.