I'm a farmer first, so I know the cattle side of it better than I know the beef side. I do have some exposure on the beef side. Of course, I know Japan fairly well.
What happens in Canada generally is that calves are born in the spring, they're fed, and they go to slaughter between 14 and 20 months of age; that would fit into the bracket. If the same cattle that are born in the spring cannot make it in 10 months, you have January, February, March, which means the cattle are either 9 to 12 months old, which is too young, or 21 to 24 months old, which is too old for the Japanese market, so there's a gap in available cattle. I can't remember the statistics, but it's something like less than 10% of the cattle available at that time would fit the Japanese criteria.