OTTAWA — Canadian farmers could take a big hit from China's sudden retaliatory tariffs that take aim at canola, pork and other food commodities. OTTAWA — Canadian farmers could take a big hit from China's sudden retaliatory tariffs that take aim at canola, pork and other food commodities. Chris Davison, president of the Canola Council of Canada, said the tariffs are prohibitively high and the fallout will be felt across his industry. He said China is a top market for Canadian canola that represents close to $5 billion in export value. "The impacts will be widespread and will be felt…