RECENT good weather has provided ideal conditions for grass growth. Although farmers around the country are delighted, this isn’t ideal for horses out grazing. Nutrition experts from Spillers recently warned horse owners of the risk of obesity and provided some guidelines to help prevent your horse getting overweight.

It is thought that rates of obesity in some populations of ponies is as high as 70%, it’s invariably weight loss rather than weight gain is needed to keep most of our horses healthy and this means cutting back on the grass.

“Recent studies suggest that weight gain more than doubles the risk of horses and ponies developing laminitis,” said Clare Barfoot RNutr, the research and development manager at Spillers.

“Excess weight can also have other negative consequences from increasing the risk of insulin dysfunction to poor performance. So it’s crucial, from many aspects, not to let our horses get fat.”

Horses and ponies should ideally maintain a healthy body condition throughout the year. This means for allowing natural fluctuations in condition; losing it in winter to make way for natural weight gain in the spring.

However, researchers have found one of the biggest stumbling blocks is that owners are often very poor at recognising that their horse is overweight and tend to underestimate overall intake, especially from grass.

“Having an objective conversation with your vet or nutritionist about your horse’s weight is a very good start point,” explained Barefoot. “Instead of feeling offended if you are told your horse is overweight, take control of the situation. Learning how to body condition score and then doing it regularly, as well as using a weigh tape or taking photographs, will help you notice any changes promptly allowing you to take immediate steps to stop it getting out of hand.”

10 tips to take control of your horse’s weight:

1. Use winter wisely: Every year and allow your horse to lose weight naturally.

Being able to see your horse’s ribs is healthy as you enter spring and will give some scope for natural weight gain when the grass starts to grow.

2. Restrict grazing: Because grass in its growing stages is highly calorific:

• Consider turning your horse out overnight when there is likely to be less water soluble carbohydrate (WSC- sugar and fructan) in the grass but keep an eye on the amount out of time you turn your horse out for as the lower level of WSC may be negated if you are turning them out for 16 hours rather than eight hours during the day.

• Strip graze to restrict the amount of accessible grass and consider back fencing to make grazing restriction more effective.

• Turn out for longer on sparser paddocks with lower quality grazing rather than on lush pasture for a limited time, to prevent binge eating.

• Try a grazing muzzle, this needs to be introduced carefully and should not be used for more than 12 hours per day. Ensure it’s worn for the duration of your horse being turned out to avoid compensatory eating once the muzzle has been removed.

3. Assess faecal output: Make daily assessments to check for changes in pasture intake when you have restricted the grazing.

The latest research suggests you need to see a decrease of around half to result in weight loss if the horse previously had unrestricted access to pasture.

4. Don’t use rugs: Very few horses actually need them during the summer even if it’s raining. Instead allow your horse to naturally shake off a few pounds by keeping warm, as nature intended.

5. Feed alternative forage: This is a very good option for horses and ponies at a very high risk of laminitis.

Ideally remove them from pasture altogether and feed a suitable forage or short chopped fibre, preferably one that has been approved by the Laminitis Trust.

6. Invest in forage analysis: Make sure you know the nutrient and WSC content of the hay or haylage you plan to use for your weight loss programme.

7. Weigh forage before feeding: Start by discussing the appropriate percentage bodyweight ration your horse needs to promote weight loss with your veterinary surgeon.

It is important to keep in mind that if you are soaking feed, start with 20% more dry weight as some dry matter will be lost post soaking.

8. Increase exercise: Exercise should be increased to a minimum of 25 minutes (15 minutes at brisk trot) five times a week to help keep your horse’s waistline in check and support a healthy metabolism.

9. Provide nutritional support: This is important to ensure your horse has a balanced diet.

The latest research recommends that a low calorie, protein, vitamin and mineral balancer should always be included in the diet of horses on restricted forage.

10. Monitor your horse’s weight: Regularly reviewing your weight loss programme with your veterinary surgeon or nutritionist is an important step to keeping your horse in good shape.

Use a weighbridge for accuracy and then assess and record weight weekly using body condition scoring and a weigh tape.