Show MINERAL FEEDS NEEDED BY COWS tile ordinary old scrub cow needed little mineral la in her diet because she could get enough from the natural naturel food consumed but the cow found today la Is a highly specialized milk producing machine and since milk Is rich in mineral salts it is necessary to add these materials to her food i supply fortunately says gays john A arcy dairy extension specialist at north carolina state college the feeds grown in north carolina are deficient in only four of the minerals most needed deeded these are sodium chlorine calcium and phosphorus these essential minerals can tie lie supplied in an inexpensive form by using common salt finely ground limestone and odorless steamed bone meal there Is no DO advantage in buying and feeding to complex mineral mixtures because r some orne of these contain a number of tant mineral elements which are not needed by the cow and sometimes cause injurious effects mr arey states that common salt furnishes both boddum and chlorine and can be mixed avith the grain at 1 the rate of one pound of salt to each ten pounds of grain in addition s salt all should be placed in the bles or pasture so that the cattle may havo have tree free access to it at all times rhe of salting at intervals of one or two weeks Is not recommended he states the need deed for calcium and phosphorus Is apparent when one realizes that 85 per cent of the skeleton Is composed of these two elements also CO 50 per cent of the minerals in the milk Is composed of the same two elements both are essential for growth reproduction of young and production of milk they are generally deficient in the teed feed ration and it if not dot supplied the cow will draw on her own skeleton for a supply and thus develop a cast case of weak bones |