KEENAN MechFiber diet feeders are unique in the proven nutritional benefits they deliver. Engineered to use a gentle mixing action they produce an evenly and thoroughly mixed, light and fluffy ration that is never over- or under-processed. We call this optimal mix ‘MechFiber’. Each machine features a unique two-chamber system – both a mixing chamber and a separate discharge chamber. The two-chamber system, together with the 6-paddle reel and patented fixed knives system produce the MechFiber mix. Independent trials have consistently shown that MechFiber retains the fibre structure to stimulate rumination, allowing greater absorption of energy and maximised Feed Conversion Efficiency.