The United States, New Zealand and Aus- tralia are pushing hard for Canada to open up its protected dairy market and allow more imports, complaining that the coun try has not given its trade partners a sign it is ready to talk and even mulling a TPP without Canada. With a national election scheduled for October, Canada's Conservative govern ment is wary of angering farmers by alter ing the supply management system, which keeps dairy and poultry prices artificially high by restricting supply