This is as close as I could find to an Ag Site for Alberta. Agri-Environment Services Branch Office Locations - Alberta - Agriculture and Agri-Food Canada (AAFC)
I am not at all familiar with Alberta; scroll thru the list to find the city nearest you and hope they can help you.
Their first "scripted" answer will most likely be that it's in your best interest to plant grasses native to your area.
That's all well and good as long as they tell you what those native grasses are - lol lol
If you don't feel you've been helped, then I would branch out and call the Ag center that is in the next closest proximity to you.
If you can't get any help this way, there's an off-chance that Admani of Canada (ADM) might be able to help or at least point you somewhere:) http://www.admani.com/canada/
Also, since you're making such a conscious effort, you might want your soil tested for mineral content. The grass is only as good as the soil it's grown in.
I know some states further north of me are high in selenium for example. Where I live that is not an issue but extremely high iron content is. That reflects in my pasture and my hay that is grown five miles away.
Iron depletes copper and zinc; two important minerals horses need.
Especially my two metabolic horses; we are so high in iron, it's probably how they came to be metabolic in the first place. They are most likely genetically predisposed but having high iron and low copper & zinc in both hay and pastures may have sent them over the insulin/glucose edge.
I'm only siting that "for example" to help you understand the importance of testing your soil before you seed so you can have any soil mineral imbalances corrected:)
Hope this helps:)