Ryle
Posted : 5/31/2009 3:07:03 PM
[quote=RosieRox]
Shetland pony
history of grass founder
overweight.
These three things point to a high risk of insulin resistance. It would be a good idea to go ahead and have the vet run a resting serum insulin test on her to see if that is the case. And if so, to allow you to monitor how well you are controlling it with diet and exercise--basically it will give you a baseline number to compare future tests to.
[quote=RosieRox] My plan is to dry lot her at night with hay and in the morning before I leave for work I'll turn her out with her muzzle on for the day and on weekends let her graze for a couple hours a day without the muzzle. Does this sound ok?
I really would not recommend that much turnout with a grazing muzzle or not. 2-3 hours turnout is all that is recommended for horses with insulin resistance. This pony would be better off dry-lotted all but a couple of hours per day and fed a hay low in non-structural carbohydrates. You can send hay samples off to Dairy One Forage Lab for testing and you want a result that is no higher than 12%. Warm season grass hays tend to be lower in NSC content that cool grass hays. If you can't test your hay, you can soak it for 30 minutes in cold water prior to feeding to help remove some of the carbs.
[quote=RosieRox]Also, in the winter should I feed her some grain as well as hay? My miniature donkey gets about a cup of SafeChoice twice a day in the winter, would that be ok for the pony?
Any horse that is kept mostly on hay needs a supplement to balance the vitamin/mineral content all year round. I wouldn't go with Safe Choice (it's really not low enough in NSC's), rather choose a "ration balancer". Many companies make them. They are protein/vitamin/mineral supplements that are designed to compliment either grass hays or alfalfa. They are fed at about a rate of 1-3 lbs a day for a full-sized horse, but you could contact the company that makes it to find out what would be appropriate for a shetland pony.
http://www.thehorse.com/pdf/factsheets/insulin-resistance/insulin-resistance.pdf