I never raised animals to be butchered, I just can't do that, but when we had our dairy goat farm, one of my potential milk buyers ( a cheese maker) wanted to see my farm and determine if my goats were treated humanely before she would buy my milk. Since we considered each of our 125 goats as a pet, she was pretty happy with us and bought our milk for years.
Your answer has to depend on why they're asking. Do they want to know if the animals are organic, or humanely treated or something else?