OCR Text |
Show NUTOTIVE VALUES H POULTRY FOOD BH A nutrltivo ratio I3 tho ratio bc- Hj tween the energy given off by tho H protein and tho energy given oft by Hv tho carbohydrates. To find this nu- H tritive ratio, tho carbohydrates plus H -'A tlme3 the fat Is divided by the H protein. Thus, the nutritive ratio may H be 1 to 1, meaning that something H contains -1 times as much of the fat H or heat and energy-forming element!), j as it docs protein or meat-forming 1 elements. Thus It may bo seen B that chicken feeds differ Jn the H amounts of the different elements. J Taking corn for example, the fat- H forming elements aro nearly ten H times as great ns the nitrogenous or H protein elements This gives tho nu tritive ratio of 1 O.C. With meat bcmps, tho nutritive ratio Is the other way, there being twice as much protein pro-tein as carbohydrates. Thus, in order to scientifically and properly make up a ration or mixture of feeds for hens, tho number of pounds of protein, carbohydrates and fat must be considered as well as the number of pounds of grain. Dr. P. Wheeler, of the New York Experiment Station at Geneva, N. Y says "that 500 pounds live weight of hens In full laying, each hen weighing from three to five pounds, would require. Dry matter 27.5 lbs: Ash 1.5 lbs.: Protein 5.0 ' lbs.: Carbohydrates IS. 75 lbs.. Fat 1.75 lbs. This has a nutritive ratio ra-tio of l;4.G." J HI HmmcrAmatiefk H Jlnw material. TJi ing material. , Finished product Egg. H "Wheat gruln. Cro?s section of leg. |