Show fd TO FEED BACK TO THE COW experts prove practice Is profitable some dairymen are finding profitable a practice which virtually amounts to skimming the milk once and then skimming it again and again this Is possible only in districts where butter Is the principal dairy product and a quantity of Is a product byproduct by one way to use the byproduct by product Is to feed it to the dairy cows that produced it the cows require a protein supplement in en t in their ration the butter mail er however to Is interested in the tat fat ordinarily the dairyman feeds the oil meals but contains most ot the protein which the dairy cow consumes and does docs not require for her maintenance the pi protein otean Is less concentrated than it Is in sin an oil meal but it Is in in an easily available form where Is cheap it may be an economical source of protein feeding tests at the university of minnesota indicate that eight pounds of lik will ivill take the place of one pound of linseed oil meal know knowing ing the local prices of meal and skim milk it Is easy for the dairyman to calca late inte which Is the cheaper for him to teed feed when the dairyman feeds skim milk for its protein he sets up what amounts to a circular movement of milk from the cow to the separator and back through the cow to the milk pall each time as it passes through the separator he skims the cream and sends the milk back to gather more cream within the cow few cows will drink the skim mIlli when it Is offered to them unmixed with some other feed the practice at the Allaine minnesota sota station was to mix the with the grain feed in a pall and then pour it over the silage obviously the quantity of that can be fed without waste depend upon the quantity of grain and upon its liquid holding capacity on account of the fact that cows in summer often receive no silage and but little grain and as Is very attractive to flies there is no doubt that skim milk Is more advantageously fed in the tee winter than in the summer |