I don't know if this is you man....but there is a Fred'k Parrott listed as being in the 'Army Veterinary Corps' number Se/12182.
The reason i suggest this one, is my great grandfather was involved in the care of horses during the war, and was in the Army Veterinary Corps. We understand he use to look after both wounded animals, as well as ones newly arrived from the UK.
This is also a possible pension record for this man, held on Fold3, the ancestry indexs card mentions him living in Newport, Pagnell, Bucks, with a possible wifes name of Hannah
Richard