I have a 9 month old filly who grew 3 1/2" in the last 8 weeks and experiencing pain in joints, straight pasterns, huge gaps in her knees...We have bred and raised babies for years and this is our first case of this. We have always fed alfalfa hay and a mill mixed 16% feed using liquid fat versus molasses. My vet also recommended pulling all grain but I too do not see the logic in pulling all grain. Oats/corn has been fed for years and now all of the sudden it is the forbidden feed... We have Nutrina feed store nearby and the Nutrena nutrionist is suggesting using their Litebalance formula. Would this be a good feed to feed her? We show halter horses and so what feed is recommended for our program to avoid these type of problems. Can this be a genetic problem versus a too much protein problem since our feeding program has been the same for years and this is our first baby to experience this condition? Thank you Diane

Where are you from? Indiana

How did you locate this forum? google search

Hi Diane,

Certainly genetics can play a significant role in many, if not most, disorders. However, over the past few years there has been research to suggest that high starch diets -- those from cereal grains such as oats, corn, and barley -- can cause osteopathic disorders in growning horses.

And, the second consideration is that most growing horses are not worked, so they simply do not need the extra calories. Too many calories can lead to too fast a growth rate.

The best way to feed a growing horse is to provide all the grass hay he wants, along with approximately 20 to 30% of the hay ration as alfalfa. Have the hay analyzed to ensure enough lysine intake. Otherwise supplement Lysine to bring the level to at least 44 grams per day. This essential amino acid is necessary for proper tissue development. And, finally, fill in the nutritional gaps with a good vitamin/mineral supplement designed for growing horses.

If you feed a complete feed, as you mentioned, be sure it does not contain cereal grains and has at least 18% fiber. But, again, your filly may not require the additional calories. And, to get all the vitamin and mineral fortification, you would have to feed it according to directions. Using it, instead, as a "carrier" for supplements by feeding a small amount, would work nicely.

Thank you for writing about this very important topic.

All the best,

Dr. Getty

Where are you from? Bayfield, CO