When your horses blaze and nostrils start to go grey you will find that your horses nutritional needs also change older horses can suddenly become very choosy and they might start to suffer with respiratory issues in order to keep fur and hooves healthy even in old age your horse needs a nutritious diet which is easy to digest it is important that it is dust free and this helps to prevent respiratory illness stephans mhle horse feed senior plus is a tasty muesli horse feed it is oat