. A digest of metabolism experiments in which the balance of income and outgo was determined . a subject suited to a particular purposemay be readily selected. Dogs may be trained to eat almost any foodfor a longer or shorter period without serious inconvenience. A monot-onous diet seldom causes lack of appetite, as in the case of man. Theexcretory products may be readily collected, and when confinement ina cage is a necessary experimental condition it has seldom proved soirksome as to derange normal functions. In this compilation the material has been so arranged that the exper-iments with di
. A digest of metabolism experiments in which the balance of income and outgo was determined . a subject suited to a particular purposemay be readily selected. Dogs may be trained to eat almost any foodfor a longer or shorter period without serious inconvenience. A monot-onous diet seldom causes lack of appetite, as in the case of man. Theexcretory products may be readily collected, and when confinement ina cage is a necessary experimental condition it has seldom proved soirksome as to derange normal functions. In this compilation the material has been so arranged that the exper-iments with different kinds of animals are grouped in separate tables. EXPEKIMEXTS WITH CATTLE. INFLUENCE OF FEEDING. In Table 27 are included 19 tests with cows and 121 with steers. Theanimals were all in health. In most cases the nitrogen balance wasdetermined in connection with digestion aud feeding experiments, audnumerous special questions connected with the feeding and fatteningof cattle were studied. 285 286 A DIGEST OF METABOLISM EXPERIMENTS. a- 1®. bJO £ o a 2 so-2s » =.• 03 . <B O. (—) SSOf JO (+) nnjr> O rl rH m in mioiocod -# irf to i + + + CO -# I + 658 o o (M CO co oo o in to cm © co rH i-H i-H CM CO riH HHHi-iN © co co m co •>* a ^ si II Sod a a a a « s k.©© ^ a ^ a* . .CM • rH . a a a c a c a bfiSo^l w>| cj © © © © fH © co © © +e © +? m CD l> O CO o CO co t> t- co be§ = © m m 1-1 rH r c? 2 o3 2 CP CP CD 0) •£ a a a a *a a a a | bfi be bJO be r +J .4)O P-c aaa| <*CO ®rHr-l !M <D r-1 in of t» 03 5^ ™ S 00 Ida o©§ ©u a b-H J os cp aa© «© m© »cm CM rH CO CO © m © m m mCO CO oc © ^ to* CO © t- rH CO 00 O |_(£ £ ^ r* o o o MMM © £ £ £ £ £ £ . £ Es £ t* o o oo ooo;o oo o O O OO OOO -O OO O <c o o o S :S X • • ® (H ® ° ° :f3 co • • M : : so : S :: c . 03 • a : w • bC®<D 03 cv © CO COCC 00 © © © • aaqranu x«uag © © i-< CM © ©CO CO<N CM CM C
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