title: Egg rules endure challenges.
authors.forename: Greg
authors.initials: G
authors.lastname: Cima
mesh_terms: D000827:Animal Welfare / Q000331:legislation & jurisprudence* / Q000592:standards; D000818:Animals; D002140:California; D002645:Chickens / Q000502:physiology*; D004531:Eggs / Q000191:economics / Q000592:standards*; D005260:Female; D006799:Housing, Animal / Q000331:legislation & jurisprudence* / Q000592:standards