I donāt mean this offensively, but the above post is a bit ignorant. No, not all horses in the UK are fed nothing but haylage! Some feed good quality hay, just like in America. @WhiteFence
It is not really fed in America but that doesnāt mean it is wrong or not ok. In Germany haylage is also fed to horses with no issue. There are a few things to be mindful of, such as once you open the bale (the plastic wrapping), use it within a few days. If there is a lot of yeast, just remove that patch and feed the rest. Sometimes there can be white patches here and there, a little does not harm the horses, but it is easy to just remove it and feed the rest.
Haylage is a good solution for our horses with allergies as it is not so dry and dusty like hay. Yes you can soak or steam hay, but the haylage is directly ready to feed. Iāve fed it to my horse with allergies (dust, mold, trees, grass, life, etc) for years and heās done well. With easy keepers I feed it in a slow feed hay net.
Haylage in some cases can he āricherā than hay, so it depends - you can maintain a horses condition wonderfully on haylage, hence why you must be mindful with feeding it to easy keepers. It can also test lower in sugar than some hays. As per any forage, you must test to know exactly. So no, it is not necessarily easier to āmaintain good condition on legume hayā whatever that may mean.
When horses come off of the pastures in the late fall, most barns feed haylage all winter. Hay is available also. No one has any issues. Maybe the odd person does here and there, because, well, stuff happens, especially if youāre not mindful, and all horses are individuals.
While Brewerās Yeast has no active microbes, it still contains B vitamins, other minerals, and is a decent source of protein. In some cases if your horse cannot have soy or alfalfa, Brewers yeast may be a decent solution for protein. Itās not the best, but it is not incredibly harmful either.
If one wants active cultures/microbiotics, etc. The one would feed a probiotic.
I can probably dig up some articles on this.
I donāt know who or what Biostar is. Iād have to look into them, but Iād do some more reading on haylage v. hay if you really want to know more about it.
http://castlehorsefeeds.com/hay-v-haylage-right-horse/
There is one summary of differences.