hmm, i can see why your horse's behaviour has changed. horses fed by hand - in particular (sorry to prejudice) good doers who tend to be greedier thanh other horses who are poor doers or fussy feeders - easily succum to bribery, and over-use or wrong use of this causes them to 'beg' for food. this is because he has not actually learnt that food is a reward, not a gift to be given on demand (which is how it is now).
the way to stop this behaviour is simply to no longer give your horse treats by hand; it is not necessary and there are other, more efficient ways of rewarding your horse for good work as a thank you, including a loving stroke and kind, soothing words as well as a period on a long rein/release of the inside rein, all of which work very well.
as for the weight loss, in order to lose weight your cob needs to be using up more calories than he is eating. i strongly suggest that you exercise him as much as possible - even a 20 minute stint on the lunge or a few minutes in the menage whilst you muck out. a 20 minute is the equivelant of 1 hour schooling, so use your time well. could you ask - even pay - someone else (such as your YO, RI, friend or fellow livery owner) to ride him for you if and when you can't?
slow work (aerobic) burns fat, whilst fast work (anaerobic) improves fitness. both need to be used isn ideal amounts and as he gets fitter you can introduce longer work. include as much hillwork as you can; road work is not really that important and if you feel worried or frightened then don't bother, it really isn't worth the bother.
turn him out as much and for as long as possible; even if, like i said, it's a mere 10 inutes or so in the menage while you are mucking out, so that he can let off steam.
you will probably find that, as he fittens, your horse gains more energy and stamina yet loses more weight. the work and an ideal feeding programme will help to keep his mind occupied, something for him to think about - as well a mind-stimulating toys in the stable to prevent boredom and keep him busy - will help to ensure that his behaviour remains good.
feeding-wise: you need to be feeding a high fibre, low starch and low sugar diet, alongside ad-lib water, adequate amounts of vitamins and minerals, and plenty of fibre (never underestimate this; it is essential to maintain gut health). this can be gained from a diet purely of grass, hay (preferably soaked or steamed to lessen its nutritional value and to keep it as dust-free as possible. haylage is too nutritional for good doers needing to lose weight) and a feed balancer or vitamin and mineral supplement.
this will provide plenty of fibre and a balanced diet low in sugar and starch, containing no cereals.
feeding nuts, cubed or any extra feed will only be used by your horse to gain weight, rather than for energy.
i recommend this daily diet to maintain optinum health in your horse, provideing all the nutrients he needs without the calories.
AM
400g (or 100g/100kg bodyweight) = A feed balancer such as Blue Chip Original/Lami-Light or Baileys Lo-Cal, all designed with good doers and laminatics in mind. these are usually fed in cube form.(alternatively you could feed a vit&min supplement - such as Global Herbs Globalvite or FeelGood 30 Vitamins and Minerals, usually fed in powder form. you will need to mix this in with a VERY small amount of chaff - not even a handful - such as Dengie Hi-Fi lite or Good Doer, a balancer is more ideal).
succulents (fruit and vegetables)
split this into one or two feds each day.
PM
1 big haynet = either one with very small holes, or one over another. this will keep hi occupied for hours yet won't mean he'll be without forage for hours.
here are some tips:
- tie your cob's haynet on the opposite side of the stable to his water bucket/s so that he has to walk across to each, using up precious calories.
- have your hay analysed for free by saracen horse feeds, or grass for £20. for £5 dodson and horrel will analyse your hay and £30 your grass.
- add a digestive enhancer to your horse's daily feed to amke sure he utilises the nutrients in his diet most efficiently. you may well even find that he becomes healthier-looking and chirpier.
- feed to balancer via a trickle-feeding toy so that it lasts longer, stimulates your hoprse's brain and keeps him occupied for much longer, rather than have him staring at a barely empty bucket.
- make sure that he is eating at least 1.5% of his bodyweight in forage each day (so at least 6-7.5kg).
good luck!
if you have any more queries, please PM me!