INDEX 



471 



Pork production, 378. 



food requirements for, 381. 

 Potassium, 19. 



Poultry, kinds of food for, 400. 

 Preparation of food, influence of 



methods, 127. 



Preserving fodders, influence of 

 conditions and methods, 

 126. 



Problems in feeding animals, 5. 

 Production, relation to food, 420. 

 the unit of, 419. 

 values, estimation of, 181. 



relation to profit, 195. 

 Proteans, 61. 

 Protein as a source of energy, 159. 



of fats, 159. 

 coagulated, 61. 

 commercial, 336. 

 content as basis of valuation, 



289. 



derivatives, 60. 

 efficiency from animal sources, 



408. 

 foods, no single one essential, 



337. 



functions of, 158. 

 home supply of, 276, 336. 

 how determined, 48. 

 importance of, 47. 

 physiologically necessary, 186. 

 relation to muscular activity, 



183. 

 relative importance overstated, 



326. 



requirements for milk-produc- 

 tion, 325. 

 sparers, 187. 



standards, revision of, 303. 

 supply of, 302. 

 Proteins, alcohol soluble, 56. 

 as tissue formers, 158. 

 classification of, 49. 

 cleavage products of, 63. 

 digestibility of, 119. 

 efficiency of, 215. 

 familiar examples of, 52. 

 greatly unlike, 49. 

 glyco-, 59. 



Proteins, lecitho-, 60. 



milk, food sources of, 321. 



not wholly oxidized, 146. 



nucleo-, 58. 



phospho-, 59. 



phosphorus-bearing synthesis 

 of, 192. 



properties of, 62. 



simple, 52. 



the true, 50. 



relative efficiency of, 190. 



ultimate composition of, 51. 



unlike constitution of, 63. 

 Proteoses, 62. 

 Psychic factor, the, 111. 

 Ptyalin, 98. 



Ration, calculating of, 296. 



influence on development of 



swine, 383. 

 and quantity of, 124. 

 of size of, 171. 

 on quality of product, 304. 

 insufficient, correcting of, 300. 

 maintenance, 307. 

 character of, 307. 

 for bovines, 309. 

 for horses, 317. 

 how provided, 308. 

 proportion used as fuel, 160. 

 the manipulation of, 429. 

 the quantity of, 431. 

 relation to size of animal, 301. 

 selection of, 305. 

 uses of production, 308. 

 Rations, adaptation of, 293. 



calculations for dairy cows, 333. 

 fattening, selection of, 369. 

 for laying hens, 412. 

 for young birds, 413. 

 practical, for dairy cows, 335. 

 selection of, for sheep, 376. 

 Rennin, in stomach, 104. 

 Respiration, 143. 

 apparatus, 209. 

 calorimeter, 214. 

 object of, 144. 

 Reticulum, the, 101. 

 Rigor mortis, 55, 



