Thanks for the quick reply. What I see I can't really describe as "white specks". Here is a link to an image from the web that is representative of what I see when the bales are opened. Is it yeast? Is 'yeast' the same as 'white powdery mildew'?
http://equineink.com/tag/hay/
Here in Canada, feeding haylage isn't a well accepted practice due to risks of botulism (although we do vaccinate for it as recommended by our vet), spoiled feed due to our weather conditions, and just a general lack of knowledge on producing, proper curing and packaging etc. (Although we do...