ICE Canadian canola futures slipped on Thursday for a second straight session, pressured by limited export demand and weak soy prices. Traders were adjusting positions ahead of Friday's US Department of Agriculture reports. Most-active March canola lost $2.80 at $490.80 per tonne. May canola shed $2.60 to $498.50 per tonne. March-May canola spread traded 859 times. Chicago March soybean futures slipped on position-squaring ahead of the USDA reports.