INDEX 



739 



Packing house, by-products of, 590 



Pancreas, 86 



Parotid glands, 79 



Passage of feed from stomach, 83 



Paunch, 80 



Pectins, 15 



Pentosans, 15 



digestion of, 91 



fermentation of, 91 



metabolism of, 158 



proportion of, in crude fiber, 71 

 Pentoses, 9 



metabolism of, 158 

 Pepsin, 79, 82, 96 

 Peptids, 30, 35 

 Peptones, 35 

 Period system, 477 



Pettenkofer respiration apparatus, 212 

 Phosphatids, 22, 23 

 Phospholipins, 22 

 Phosphoproteins, 35 

 Phosphorus : 



anabolism of, 180 



digestion of, 101 



forms of, 7, 180, 421 



inorganic, value of, 421 



katabolism of, 180 



metabolism of, 180 



occurrence of, 7 

 Pigs: 



energy requirements of, 400 



feeding standards for, 412 



gains by, in growth, 401 



protein requirements of, 411 

 Plane of nutrition, influence of, on energy 

 requirements for maintenance, 

 305 



milk production, 514 

 Plasma, blood, 125 

 Polypeptids, 31 

 Polysaccharids, n 



chemical structure of, 1 1 



terminology of, 12 

 Potassium, metabolism of, 181 



occurrence of, 6 



Power plant, comparison of body with, 

 567 



efficiency of, compared with body, 567 

 Practical feeding trials, 592 

 Precipitation, shelter from, 456 

 Prime motor, animal as, 192 

 Production values, 



as regards protein, 678 

 energy, 634 



definition of, 630 

 3B 



Production values, continued 

 determination of, 630 

 of feeding stuffs, 630 ,634, 678 

 Prolamins, 33 

 Proteans, 35 . 

 Proteases, 79, 86, 87 

 Protein : 



addition of, influence of, on digesti- 

 bility, 622 

 as source of energy, 318, 542 



stimulus to milk glands, 502 

 body, fluctuations of, 319 

 proportion of, in bone, 48 



offal, 56 

 cause of diminished digestibility of, 



619 



cleavage, extent of, in digestion, 98 

 computation of gain or loss of, 204 

 consumed by calves, 404 



lambs, 407 

 crude, determination of, in feeding 



stuffs, 68 



digestibility of, 119 

 functions of, in fasting, 255 



work production, 543, 560 

 gain of, in fattening, 354 



or loss of, 202 

 in dairy rations, 506 

 fattening rations, 364 

 increase in fattening, 364 

 influence of, on digestibility of rations, 



33i 

 insufficient, effect of, on growth of 



swine, 409 

 katabolism, 



dependent on supply, 322 

 in fasting, 251 

 variable, 251 

 normally small, 251 

 in work, influence of non-nitrogenous 



nutrients on, 538 

 influence on, of feed supply, 316 



work, 536 

 minimum of, 

 for growth, 446 



maintenance, 316, 323 

 milk production, 501 

 nitrogen factors for, 69 

 nutrition, plane of, 324 

 of feed, storage of, 319 

 optimum of, for maintenance, 323, 330 

 physiological minimum of, 254 

 production values as regards, 678 

 rate of increase of, in growth, 375 

 retention of, in growth, 382 



