LC (Library of Congress) Subject Headings are helpful for finding books and other materials included in most academic library catalogs. Using subject heading links will produce more precise results than keyword searches. For example, try with a search with key words, such as humane and meat. Then peruse the records of relevant items to identify specific LC subject heading links. A few examples:
Food--Moral and ethical aspects
Food industry ethics
Food of animal origin
Humane slaughter
Meat industry and trade
Sustainable agriculture
A few additional animal studies-related concepts:
Animal experimentation
Animal rights
Animal rights movement
Animal welfare
Bioethics
Environmental ethics
Factory farms
Farms, small
Human-animal relationships
Laboratory animals
Slaughtering and Slaughter Houses --Law and legislation
Animal Studies is covered in many academic disciplines (e.g., classics, English, history, international studies, philosophy, law, public policy, etc.). You will find books related to animal studies throughout the UW Libraries. Use the UW Libraries Search to find books related to your research topic.