We live in Alberta where winters can get quite cold...anywhere from like -15C to -40C. This is my 1st winter with my horse. I have read that I need to provide him with constant feed during the very cold days. We bought square bales of hay for the winter....with those how should I feed him constant feed during the day and night? He now gets 3 feedings a day with 2 flakes per feeding. Should I feed him say 3 flakes 4 times per day? Or 1/2 a bale twice a day? Or simply give him a whole bale in the morning? How should I go about it?