What don't you understand about the way Jesus taught us to pray for our Father's heavenly will to be done on earth as it is in heaven (Matthew 6:10), where there is no pain or mounding or death.
To kill any living being requires us to harden our hearts to no longer have empathy for that individuals desire to live, and the more we do this the further we move from communing with the Holy Spirit, and the closer we come to becoming sociopaths.
All forms of abuse and exploitation are wrong.
Why not try an unprocessed whole plant food diet as God commanded us to eat in Genesis 1:29-31. We have a great recipe section on our web site. http://www.all-creatures.org/recipes.html You'd be a lot healthier.
In the Love of the Lord,
Frank and Mary