Jarvis, N., Paradis, M.R., Harris, P. (2019) Nutrition considerations for the aged horse. 

Equine Veterinary Education 31(2), pp 102-110.

Summary: "As the proportion of aged horses within the general equine population appears to be increasing in the UK and other developed countries, it is important to be aware of the changing dietary requirements associated with the aging process and age related diseases. This review provides guidelines for optimal nutrition of the older horse with practical approaches to improve or maintain body condition and support general health." 

Listen in as Kate and Nancy discuss these guidelines and recommendations.

Below is the link to Equi-Analytical for Hay/Fresh Forage and Grain analysis.

https://equi-analytical.com/common-feed-profiles/interactive-common-feed-profile/