Hayledge is, for those who don't know, hay baled into round bales at 40 - 60 % moisture and plastic wrapped. The plastic must be air-tight and the moisture content within limits in order to create the right conditions for fermentation without the development of mold. It is very rich in nutrients
As we face another wet summer in Maine and it becomes increasingly difficult to dry hay for horse feed, A local hay producer who makes hay for horses and hayledge for cows has been researching the fact that hayledge is fed to horses fairly commonly in UK , Ireland and other European countries. He is working with two area Vets to examine the pros and cons. While waiting for the developing story, I am wondering if anyone on this forum has any information and or experience to share regarding feeding hayledge to horses.
I asked the ECTRA chat list got several responses including what she called a mini lecture from Elaine Larson; published with permission:
"Haylage and silage are made with the moist plant matter, rather than dried like
hay. Because of the moisture they will support the growth of microbes - ie mold
etc. Left out in the air, these microbes would gradually consume all the
nutrients in the plants for themselves, leaving behind their waste products and
toxins which is not a good feed.
To make haylage or silage, the plant material is put a place that can be sealed
from the air (a silo, silage pit, or the white "marshmallow" wrappers). Once
sealed, the aerobic microbes run out of oxygen and stop growing. The anaerobic
microbes keep going for a while, and their metabolic byproducts are organic
acids such as acetic, proprionic and butyric acids, so the pH of the material
decreases. Eventually the pH falls to the point that the anaerobic microbes
can't grow either. So you now have a feed that is "stable" - it can be stored
in this condition for a long time without further microbial growth and
deterioration. Sort of like pickles.
The catch is that when the material is fed, it is exposed to air and oxygen
again. Since the material is still moist, the microbes are happy to start right
back up again. So, care must be used to store the material properly, minimize
exposure to air when taking out material to feed, and feeding only enough to be
consumed in a fairly short amount of time so that microbial growth is minimal.
If that can be done, it should be ok to feed for horses, although they will
probably have to become accustomed to it gradually as with any change in feed."
There is some concern over botulism in the moist environment of the hayledgebale I hear. Cows can process it when they encounter it, horses cannot, But I also learned that there is a botulism vaccine available for horses.
(Check out the comments for additional information)









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