Ready to rug?

As the nights start to draw in and the temperature drops, our thoughts turn towards winter. But whilst we may soon be thinking about reaching for a thicker duvet, do we really need to be doing the same for our horses? Possibly not!

Previous estimations that horses may use up to 80% of the chemical energy derived from food to keep warm in winter were greatly overestimated. The point at which horses need additional energy (lower critical temperature) varies between individuals and is affected by factors such as wind chill, thickness and length of coat and breed. Horses, particularly natives, are far better at dealing with cold temperatures than we are and can generally withstand temperatures down to as low as -15 degrees C, even without clothes! However in the coldest of weather, the horse’s energy utilisation can increase by up to 25-30%, so making sure that poor-doers kept wrapped up in warm, well-fitting rugs is certainly very sensible management. Research has shown that rugs can reduce heat loss by 18% in cold weather so equally, try to avoid rugging good-doers and overweight horses and encourage them to use some of their own reserves for keeping warm as nature intended!

Allowing natives to lose weight in the winter is both natural and healthy, although too often, good-doers are still carrying too much weight before the spring grass arrives. In fact, a study in 2011 found over 25% of horses and ponies to be overweight (BCS of 7 or above) in February, highlighting the importance of winter weight watching!

Suitable rugging alone (whether this means leaving them on or off!) will not be enough to manage your horse’s weight this winter, but making the right choices will certainly help. Remember, all horses are individuals but are much better at coping with the colder weather than we are. Whilst you may soon need your winter woollies, this is not necessarily the case for your horse!

Energy vs. calories: is there a difference?

Many owners come to me looking for a feed that will provide more energy without more calories and this common conundrum is one which often causes confusion. So once and for all, let us lay the myths to rest and uncover the truth. Is there a difference between energy and calories and is it really possible to feed more of one without the other?

The simple answer on both counts is no!  Whilst people often tend to use the term ‘energy’ when referring to work or behaviour and ‘calories’ when referring to the horse’s weight, they are not two separate entities (think ‘tomayto/ tomahto’!). Put simply, energy is extracted from nutrients and the amount you feed affects the horse’s weight. Feed too little and he will lose weight, feed too much and he will gain weight. The horse’s energy requirements take into account the energy he requires to simply stay alive and the energy needed to work (which is often over estimated). Regardless of whether a feed is classified as ‘heating or non-heating’, ‘low calorie or high calorie’, feeding more energy than the horse needs/ burns is more than likely to result in excess weight gain.

In many cases, lethargy or a lack of ‘sparkle/ oomph’ is not diet related and therefore simply changing or increasing feed is unlikely to be the solution. Instead, ask yourself if your horse’s weight, temperament or fitness could be responsible. Decreasing weight and/ or increasing fitness, is sometimes all it takes to improve the horse’s natural energy levels. However for sudden, severe and/ or uncharacteristic lethargy, seek veterinary advice to rule out any underlying medical conditions.

Changing the type (rather than the quantity) of energy fed may result in a more energetic performance, but this method only works in some and horses and even then, is not without its pitfalls. High starch, cereal based feeds are not suitable for laminitics and may also encourage more rapid weight gain compared to fibre and oil based feeds. Considering their potentially increased risk laminitis, it could be argued that such feeds may not ideal for any pony, native or good-doer.

As an alternative to changing your feed, you may have considered an ‘energy supplement’ and for some horses, this can prove an effective way of encouraging a more energetic and focussed performance. However, it is often wise to avoid the iron based/ high iron supplements. Horses are rarely deficient iron and in fact, there is not scientific reason to suggest that oversupplying iron will improve energy levels. Iron is also one of the few minerals which can be harmful if over fed.

Despite what you may have been told (or what we might sometimes wish for), energy and calories are exactly the same thing. If your horse is in good or overweight condition, it's not advisable to increase the amount of energy you feed him, regardless of his ridden performance or enthusiasm.

Ribs: to see or not to see, that is the question...

In recent years the media has been filled with messages about obesity and this message and indeed the problem, is one that affects our equine population too. Although many of the horse owners that I speak to seem aware of the problems associated with excess weight gain, we are still seeing large numbers of overweight horses and because of this, sometimes find that the perception of ‘ideal’ is skewed.

Body Condition Scoring (BCS) is an objective and effective way of assessing if and where the horse is carrying body fat and in many respects, is of greater importance than the horse’s actual weight. The 1-9 scale assesses 6 main areas which should be scored individually before calculating an average. For leisure horses, a score of 5 (described as ‘moderate’), is considered ideal. A ‘perfect 5’ is defined as:

·         No crest, neck blends smoothly into the body

·         Shoulder blends smoothly into the body, no fat pads behind the shoulder

·         Withers ‘defined’ but smoothly rounded

·         Back level, no fat pads behind the ‘saddle area’

·         Ribs can be easily felt but not seen

·         Fat around the tailhead beginning to feel spongy

However when using the BCS system, there a few important considerations, one of which is the horse’s breed and another being the natural cycle of seasonal weight loss/ gain. For example on a TB horse, you can often see a faint outline of the last two ribs (particularly when they turn), even when they are at an ‘optimum weight’ or in ‘ideal condition’.

Ponies and other native breeds evolved to gain weight in spring and summer and lose it again over the winter, ready for the return of better grazing in the following spring.  Allowing natives to slim down and enter spring a little on the ‘lean’ side as nature intended (perhaps a score of 4.5), helps to prevent excess weight gain.  Provided that the horse or pony is otherwise fit and healthy, seeing ribs is not automatically something that we should be concerned about, even for natives! In addition to whether or not you can see the horse’s ribs, consider other areas on the BCS chart as well as factors such as general health and fitness, skin and coat condition and hoof quality/ health. Whilst ‘ideal condition’ and seeing ribs can go hand in hand, owners of such horses can sometimes be faced with conflicting advice from other liveries, particularly if there are several overweight horses on the yard.

Like people, horses come in different shapes and sizes and for natives particularly, the natural cycle losing and gaining weight is very important. This considered, is being able to see your horse’s ribs a problem? Not always!