Jesus obviously approved of fishing ,killing fish for food , and he would not be against hunting animals for food as is demonstrated in the Bible anyway.
Your OP is not explicit enough , hunting for sport is entierely a different thing altogether .and I guess that is what you actually meant.
If a JW hunts or fishers for the purpose of putting food on the table for himself or his family , nobody , elders ,CO ,`s or anybody, has cause for complaint against him , that is definetely a conscience matter.
Killing for sport is another matter entirely.,and maybe you should look on Jehovah God`s record in the Bible for his record on that score.