luckily Canada has no such issue:
http://en.wikipedia.org/wiki/Bovine_Somatotropin
"Canada's health board,
Health Canada, refused to approve rBST for use on Canadian dairies, citing concerns over animal health."
http://en.wikipedia.org/wiki/Milk
"Milk from rBGH-affected cattle is banned in
Canada,
Australia,
New Zealand, and
Japan due to the mastitis problems."
