Why feeding high energy diet can be wrong approach to boost yield

摘要

In 1974 the Metabolisable Energy (ME) system was a great step forward - but like so many innovations it became a 'bandwagon' to be jumped on at every excuse. You truly can have too much of a good thing - and the tunnel vision of so many 'experts' hasled to widespread acidosis. Lameness, falling butterfats, diarrhoea, too many cull cows and generally the symptoms of bad livers are all the result of widespread acidosis. The cause of acidosis is always too much rapidly-fermented energy, either as too much starchy cereal or too much high D value leafy grazing, or even bypass protected fat. Now why would you want to bypass the rumen of a ruminant? Why not increase your margins by feeding for better rumen production - and that means more roughage.