Skybird, take a look at Temple Grandin. A autistic woman who understood the pain and suffering at slaughter. She devised a system to help lessen what your are objecting to in the slaughter house. It does not cure your thoughts and feeling about it but you are not alone when it comes to slaughtering practices. Some have tried to make it more humane.
http://templegrandin.com/
Corral Designed by Grandin
http://www.grandin.com/design/design.html