
29/08/2025
Some advice from a great nutritionist about taking care when buying your forage and understanding how to help our horses that suffer with weight issues.
ENERGY OVERSUPPLY: A SILENT RISK IN SO-CALLED 'SAFE' FORAGE
I'm astounded and very concerned to see advice in a forage analysis report that a hay supplying 9MJ of energy per kilo is suitable for a laminitic horse.
Even if that hay was to be fed at just 1.8% bodyweight intake per day (dry matter) - which is restricted i.e. lower than a normal appetite - this will supply 81MJ of energy.
An overweight laminitis-prone 500kg horse needs about 63MJ of energy per day (to ensure gradual weight loss, we feed 90% of energy requirements), so this hay fed at RESTRICTED quantities will oversupply this horse by over 18MJ of energy!!
That is the equivalent of about 1.5kg (a heaped stubbs scoop) of conditioning mix.
This is disastrous advice.
And if we fed this hay free choice to a normal (not a large) appetite (2.5% of BW), this could supply 112.5MJ of energy...
..which is how much a horse in significant work would need. And it's an almost 50MJ oversupply (about 4 stubbs scoops of conditioning mix), which is going to cause significant fat gain.
(And despite the simple sugar being almost 10%, the NSC is 21% - we all know that we must take into account not just sugar, but the entire NSC content of a hay i.e. the fructan as well).
This is DOUBLE the recommended amount of non-fibre carbs recommended for laminitics!!
(There is agreement amongst nutritionists, physiologists and research specialists that we need to consider fructan in hay and not just sugar and starch, when assessing suitability for EMS, laminitis and indeed obesity).
It is absolute basic nutrition knowledge to consider the dietary energy intake (we also call that 'calories').
I've said it many times before but I will say it again...
We MUST look past sugar (or worse, just sugar and starch) to assess the suitability of a forage for laminitics or overweight horses and ponies!!
It can be disastrous not to.
I've had countless owners come to me for advice - more than one almost in tears - wondering why their horse has put on weight on 'low sugar' hay.
And sadly, some of them have ended up with a bout of laminitis.
When taking advice on forage analysis results, please check the source is either a qualified nutritionist or the company has a qualified person working for or with them (who can train them).
Please be very careful who you take nutrition and feeding advice from.
Just because they sell products (feeds/supplements/forage/forage analysis) does not mean they have a suitably qualified person to offer nutrition advice (which this case clearly shows).
Feel free to share this
ps the overweight pony in the picture needs an energy (calorie) deficit, because this is the ONLY thing that will cause fat loss (he is not linked to the report I mention)
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