I have a 10 year old, 16.2 hh ex-racehorse gelding named Louie. He is being ridden 4-5 times a week for half an hour to an hour in light work, and I am hoping to increase his workload. I am wondering what to feed him as he had liver damage from his previous owners and is slowly gaining weight with me but I have had him almost a year now and he is still ribby. I live in New Zealand and he is kept out in his pretty lush pastures 24/7 with shelter and is rugged up during winter, bad weather and cold nights, the paddocks are free of weeds and are frequently rested and cross-grazed with cattle and he is wormed regularly. What should I feed him to help him continue to gain weight, to build muscle on him and still is enough calories for him to be worked out?
I have currently run out of hay and am feeding:
-2 cups of soaked beet
-1 cup of chaff
-1/2 of feed balancer
-4 cups of Cool Feed
-A TBS of Magnesium
This is feed once a day when not ridden and twice morning and night when he is ridden.
Here is a picture of him taken yesterday (: