There are many issues in animal cruelty, and they don’t just address the well-being of dogs and cats. We’ll be gradually providing links, information resources and things to think about.
This is an excellent piece from the ASPCA: Are farm animals not considered animals?
The Humane Society of the US has published a number of white papers regarding the humane welfare of farm animals.
Humane Treatment of Farm Animals: Overview and Issues, produced by analyst Tadlock Cowan of the Congressional Research Service, addresses these issues from a legislative standpoint.