Successful farming : a ready reference on all phases of agriculture for farmers of the United States and Canada . mperature of 1000 pounds of water 4° F. The energy values of some ofthe common feeding-stuffs are given in Table II. Feeding-stuffs.—In general, feeding-stuffs may be divided into twoclasses, concentrates and roughages, according to the amounts of digestiblenutrients and their energy values. 566 SUCCESSFUL FARMING Concentrates are feeding-stuffs which contain a relatively largeamount of digestible nutrients and energy in a small bulk. They usuallyare highly nutritious in nature. Co
Successful farming : a ready reference on all phases of agriculture for farmers of the United States and Canada . mperature of 1000 pounds of water 4° F. The energy values of some ofthe common feeding-stuffs are given in Table II. Feeding-stuffs.—In general, feeding-stuffs may be divided into twoclasses, concentrates and roughages, according to the amounts of digestiblenutrients and their energy values. 566 SUCCESSFUL FARMING Concentrates are feeding-stuffs which contain a relatively largeamount of digestible nutrients and energy in a small bulk. They usuallyare highly nutritious in nature. Concentrates usually have an energyvalue of 60 or more therms per 100 pounds. Concentrates may be sub-divided into nitrogenous and non-nitrogenous concentrates. A nitrogenous concentrate is one which is relatively rich in usually contains 11 per cent or more of digestible protein. Commonexamples are tankage, cottonseed meal, linseed meal, gluten feed, drieddistillers grains, dried brewers grains, soy beans, bran, middlings andshorts. As a rule, but few nitrogenous concentrates are produced on the. The Respiration Calorimeter in Use for an farm and therefore they must be purchased. Nitrogenous concentratesare almost essential in the rations of all growing animals in order to furnishprotein and mineral matter so essential to the proper development ofmuscle and bone. Likewise the milk cow requires nitrogenous concentratesin order to provide the large amounts of protein and mineral matter whichshe excretes in her milk. Fattening animals and work horses often needsmall amounts of nitrogenous concentrates, especially if they are stillgrowing. A non-nitrogenous concentrate is low or only medium in protein con-tent, but is usually rich in carbohydrates. It generally contains less than i Yoar-Book, U. S. Dept. of Agriculture, 1910. FEEDS AND FEEDING 567 11 per cent of digestible protein. Examples are corn, barley, oats, wheat,rye, molasses and dried-beet pulp. O
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