I have an 8-year old arabian mare who I board at my mother-in-law's and she gets orchard grass hay and 4-5 hours of pasture turn out daily. This is great and working out well, but I am a little concerned about some senior feed that my MIL is giving her. I think she only gets 1/2-1 cup in the evening but I'm not sure because my MIL tells me that she doesn't give my horse any, but I have caught her 3 times now (I asked her not to feed it).
Is senior feed ok to give a non-senior horse? The amount doesn't seem like much but I don't know if it effects her energy level or not. I know that my horse really doesn't need it, she is not underweight nor is she ridden hard. She is mainly ridden by my 7-year old daughter at a walk and trot for 45 min to an hour, 4-5 times per week.
My MIL is VERY defensive about anybody (especially me) telling her anything regarding horse care that may be different than what she does or what she is used to. I need to pick my battles carefully and I'm really not sure if I should even be concerned about this. I just don't want my horse any more hot than she needs to be. And no, she is not hot now so this is hopefully just a small concern due to my inexperience. (However, I must admit that I find it very irritating that my MIL is not honest and had ignored my request that she not feed it. )