Oct. 15, 1920 



Acidity and Alkalinity of Poultry Feed Mixtures 



147 



Table V. — Acid-base balance 0/ rations 8 to 11 



Expressed in excess cubic centimeters per pound of gain. 



Table VI.— Relation of protein calories, amount of feed, and acid-base balance, to pound 

 of gain during first eight weeks 



Expressed in excess cubic centimeters in each feed consumed. 



Amount of feed per pound of gain, 3.4 pounds. 



Percentage of gain, 686. 



Excess base intake, 2,320 cc. 



Excess base intake per pound of feed, 85.5 cc. 



SUMMARY 



From Table II we note that corn, wheat, and oats, as well as egg with 

 the shell, rice, bread, fish, and hominy are acid. The wheat middlings, 

 in six analyses, on account of the high content of sodium and potassium, 

 are base. Green feeds, such as rape, cabbage, carrots, beets, turnips, 

 potatoes, spinach, and lettuce, are base. Seeds of the legumes, such as 

 velvet bean, soybean, peanut, and peas, are base. Bone meal, on account 

 of its high calcium content as well as other base-forming elements, is 

 highly base. Limestone grit is very highly base, and also to a less extent is 

 crushed oyster shell. The animal feeds containing bone, such as meat 

 and bone meal and digester tankage, are base. The calcium of the egg 

 shell does not quite overcome the acid of the albumin of the egg. Dried 



