Because horses don’t have a gallbladder, it’s a fairly common misunderstanding that horses therefore can’t digest fat. I think many people are under the impression that the gallbladder makes bile and that, because horses don’t have gallbladders, they don’t have bile and are unable digest fat. However, this isn’t the case. They do make bile, they just secrete it constantly into the small intestine instead of storing and concentrating it.
So, while the natural diet of grasses that horses would eat while grazing isn’t particularly high in fat, these plants do contain some fat and horses digest and absorb it well.
Because fat provides 2.25 times more calories per gram than an equal weight of carbohydrate it has become a very popular ingredient in high-calorie performance feeds. While nutritionists haven’t established upper limits on the amounts of all fats fed to horses, studies show that horses can tolerate 230 g of fat per kilogram of dry matter in the diet using corn or peanut oil without digestive function disruption. This is equivalent to feeding 1 cup of oil per kilogram of dry matter, which is a large amount of oil! While these high oil intakes were tolerated and no negative signs observed, most commercial feeds provide significantly less fat than this.
Rest assured that horses can digest the levels of fat included in commercial feeds and supplements despite the lack of a gallbladder. This said, keep in mind there is large individual variation between horses when it comes to acceptance of oil, and it’s possible to overdo it. You will know if you’re feeding more fat them your horse can handle by observing his manure. Too much fat in the diet will cause manure to take on an oily shine. Feeding a high-fat commercial feed tends to be a more balanced way of adding fat to the ration than using oils, but oils do easily contribute a lot of calories...
bron:
https://thehorse.com/139330/can-horses- ... llbladder/
ik denk dat het wel klopt zoals het in dat stuk staat.
maar mij is ook geadviseerd om niet teveel olie te geven.
maar er kwam nog het verhaal bij dat veel olie zo zou werken dat de darmpassage te snel zou gaan (dunne ontlasting)en het paard zo onvoldoende uit de voeding zou opnemen?