Gastrointestinal problems:
* Colic: Green grass is high in sugars and can ferment in the horse's gut, leading to gas buildup and potentially colic, a painful condition that can be life-threatening.
* Laminitis: Excessive sugar intake can trigger laminitis, an inflammation of the laminae in the hooves that can cause lameness and even hoof loss.
* Diarrhea: Too much lush grass can upset the digestive system and lead to diarrhea, potentially causing dehydration.
Other health concerns:
* Obesity: Horses are prone to obesity, and too much grass can contribute to weight gain.
* Vitamin and mineral deficiencies: While grass provides some nutrients, a diet solely composed of green grass can lead to deficiencies in essential vitamins and minerals.
* Dental problems: Excessive grazing can cause wear and tear on teeth, leading to dental issues.
Specific to lush, spring grass:
* "Spring grass syndrome": This refers to a combination of colic, laminitis, and other problems associated with horses being turned out on lush, rapidly growing spring grass.
* High levels of fructans: Spring grass contains higher levels of fructans, a type of sugar that can be problematic for horses.
How to prevent problems:
* Graze gradually: If you're turning your horse out on fresh grass, do it gradually to allow their digestive system to adjust.
* Limit grazing time: Restrict the amount of time your horse spends in a lush pasture.
* Monitor their weight: Keep a close eye on your horse's weight and adjust their diet accordingly.
* Provide hay: Hay is a good source of fiber and can help balance the diet.
* Consider a supplement: Consult with your vet about supplementing your horse's diet with vitamins and minerals.
If you suspect your horse has eaten too much green grass and is showing any signs of illness, contact your veterinarian immediately.