INDEX 



729 



Digestion, continued 



conversion of colloids into crystal- 

 loids in, 102 



experiments, example of, 114 

 methods of, 112 

 time required for, 113 

 extent of protein cleavage in, 98 

 intestinal, 87 



molecular simplification in, 103 

 of ash, 101 

 carbohydrates, 89 

 cellulose, 89 

 disaccharids, 95 

 electrolytes, 101 

 fats, 88, 95 

 hemicelluloses, 92 

 non-proteins, 96, 100 

 nucleic acids, 99 

 pentosans, 91 

 phosphorus, 101 

 proteins, 83, 88, 95 

 by erepsin, 98 

 pepsin, 96 

 trypsin, 97 

 starch, 79, 88, 92 

 in intestines, 94 



stomach, 93 

 sulphur, 101 

 organs of, 77 



general plan of, 77 

 solution of nutrients in, 101 

 uniformity of nutritive material, 103 

 work of, 277 



differences between feeding stuffs, 663 

 roughage compared with concen- 

 trates, 662 

 Digestive power, influence of breed, 440 



individuality, 440 

 Diminishing returns from feed in milk 



production, 515 

 Disaccharids, 10 

 digestion of, 95 

 general properties of, n 

 Distillers' grains, 586 

 Draft, work of, 552 



efficiency of body in, 552 

 Dried blood, 500 

 Drinking, influence of, on digestibility, 



628 

 Dry matter, 3 



of body, composition of fat- and ash- 

 free, 65 



requirements of, 695 



Drying, influence of, on digestibility, 623 

 Duodenum, 84 



Economy of feeding, influence of indi- 

 viduality on, 472 

 Efficiency of body, 544 

 as motor, 544 



compared with power plant, 567 

 conditions affecting, 555 

 economic, 562 

 gross and net, 546 

 in work of ascent, 551 



draft, 552 

 influence on, 

 of fatigue, 556 

 forms of work, 555 

 gait, 558 

 grade, 559 

 individuality, 556 

 intensity of work, 557 

 load, 559 

 speed, 552, 557 

 training, 556 

 mechanical, 545 

 over-all, 562 

 per day, 549 

 variable, 548, 555 

 Efficiency of muscle, 545 

 Electrolytes, digestion of, 101 

 Embryo, net energy values for growth 



of, 393 



Emulsification of fats in digestion, 95 

 Emulsion of fats, 19 

 Energy : 

 available, 233 

 balance of, 216 

 example of, 240 

 in milk production, 493, 495 

 chemical, 218 



outgo of, 229, 635 

 conservation of, 219 

 definition of, 216 

 expenditure in, 



internal work, measure of, 256 

 feed consumption, 275 



significance of, 277 

 locomotion, 550 



influence of speed on, 552, 557 

 for work, body substance as source of, 



544 



protein as source of, 542 

 forms of, 217 

 gross, 227, 635 

 income of, 226 

 katabolism of, in fasting, 256 



constancy of, 256 

 kinetic, 218 



measurement of, 325 



