INDEX 



743 



Trisaccharids, n 

 Trypsin, 79, 86, 97 

 Tubers, 73, 579 



influence of, on digestibility, 618 

 Type, relation of, to meat production, 

 443 



Units of energy, 220 

 equivalence of, 221 

 Urea, 162 



antecedents of, 162 



Urine, losses of chemical energy in, 636 

 non-nitrogenous matter of, 159 



origin of, 160 



outgo of chemical energy in, 231 

 Utilization : 



of energy in growth, 390 

 milk production, 493 

 feed in growth, 381 



milk production, 488 

 non-proteins, 686 

 proteins, in growth, 384, 387, 388 

 milk production, 488 



estimates of, 489, 491 

 meaning of, 488 



relative, of fats and carbohydrates for 

 work production, 553 



Veins, 126 

 Villi, 105 

 Vitamins, 41, 348 



Water: 



balance of, 216 



determination of, in feeding stuffs, 



67 

 drinking, influence of, on digestibility, 



628 



meat production, 455 

 excretion of, 142 

 functions of, 3, 190 

 supply, 458 

 Waxes, 21 



Weight. (See Live weight) 

 Wheat bran, 582 

 Wind, shelter from, 456 



Work: 



analysis of, 500 

 body substance source of energy for, 



544 

 forms of, influence of, on efficiency of 



body, 555 

 influence of, 



on circulation, 535 

 digestibility, 610 

 gaseous exchange, 540 

 katabolism of non-nitrogenous 



matter, 540 

 protein, 536 

 respiration, 536 

 intensity of, influence of, on efficiency 



of body, 557 

 internal, 256 

 measure of energy expended in, 



256 



muscular, nature of, 531 

 nature of non-nitrogenous matter 



katabolized in, 542 

 of ascent, 551 



efficiency of body in, 551 

 of digestion, 277 



differences between feeding stuffs, 663 

 roughage compared with concentrates, 



662 



draft, 552 



efficiency of body in, 552 

 outgo of, 235 



protein as source of energy for, 542 

 secondary effects of, 535 

 sources of energy for, 542 

 Work production, 531 

 ash requirements for, 565 

 calculation of rations for, 565 

 energy requirements for, 562 

 feed requirements for, 560 

 functions of protein in, 543, 560 

 net energy values for, 563 

 physiology of, 531 

 protein requirements for, 561 



Xylan, 15 

 Xylose, 9 



Printed in the United States of America. 



