ICE Canadian canola futures rose on Thursday, posting a big monthly gain, supported by a slow pace of farmer selling. The market also drew support from the US Department of Agriculture's smaller than expected estimate of US soybean plantings. May canola gained $1.60 at $476.20 per tonne. The most-active contract gained nearly 6 percent in March. July canola added $2.20 to $481.90 per tonne. May-July canola spread traded 4,368 times.