Apr. 1, 1918 Basal Katabolism of Cattle and Other Species 



45 



separately from the observed rate of heat production during the inter- 

 vals of lying and standing, respectively, and also for 12 hours standing 

 and 1 2 hours lying per day, assumed as representing average conditions 

 (Table I). 



Table I. — Computed 24-hour basal katabolism of cattle per head 



Feeding stuffs. 



Timothy hay 



Red clover hay 



Do 



Do 



Timothy hay 



Do 



Do 



Do 



Do 



Do 



Alfalfa hay 



Do 



Alfalfa hay and mixed 

 grain. 



Alfalfa hay 



Alfalfa hay and mixed 

 grain. 



Alfalfa hay 



Alfalfa hay and mixed 

 grain. 



Maize stover 



Mixed hay 



Mixed hay and hominy 

 feed. 



Mixed hay 



Mixed hay and maize 

 meal. 



Alfalfa hay 



Alfalfa meal 



Alfalfa hay 



Alfalfa hay and starch . . . 

 Alfalfa hay and mixed 

 grain. 



Do 



Experi- 

 ment 

 No. 



174 

 179 

 186 

 186 

 190 

 190 

 200, 

 200 

 207 

 207 

 208 

 208 

 208 



208 

 208 



209 

 209 



210 

 211 

 211 



211 

 211 



212 

 212 

 216 

 216 

 217 



217 



Ani- 

 mal 



No. 



Periods 

 compared. 



D-A. 



1-2. . 



2a-ia 



2b-3b 



4-3 



4-3 



4-3 



4-3 



4-3 



4-3 



1-2 



4-6 



1-3 



4-6 

 2-3 



4-6 

 1-3 



1-3 

 1-5 

 3-2 



1-5 

 3-2 



1-5 

 2-6 



5-7 

 1-4 

 2-1 



Basal katabolism. 



Lying 

 24 hours, 



Cat. 

 6,136 

 2,992 

 7,509 

 8,157 

 2,963 

 1,979 

 5,395 

 4, 143 

 4,489 

 5,226 

 2,449 

 2,274 

 2,945 



2, 696 

 3,209 



3,591 

 4,015 



3,647 

 5,124 

 4,298 



4, 525 

 4,577 



3,650 

 2,545 



3, 853 



4, 560 

 4,882 



Standing 

 12 hours. 



Col. 



6,927 

 6, 502 

 8,298 

 8,828 

 4,197 

 3,445 

 5,845 

 4,819 



5,105 

 5,395 

 2,525 

 2,867 

 3,742 



3,759 

 4,370 



4, 134 

 4,913 



4,746 

 6, 601 

 5,921 



5,818 

 5,446 



4,760 

 3,314 

 5,127 



5, 348 

 5,563 



6, 474 7, 544 



Standing 

 24 hours. 



Average 

 hve 



weight. 



Cal. 

 7,717 



7, 006 

 9,087 

 9,499 

 5,341 

 3,487 

 6, 277 



5,521 

 5,695 

 5,935 

 2, 602 

 3,462 

 4,537 



4,841 

 5,532 



4,679 

 5,810 



5,828 

 8,066 



7,531 



7,098 

 6,403 



5,551 

 4, 142 

 6,342 



6,157 

 6,243 



8,618 



Kgm. 

 406 



533 

 579 

 571 

 275 

 192 



403 

 303 

 511 

 380 

 167 

 211 

 204 



282 

 264 



307 

 292 



AAA 

 451 



377 

 378 



343 

 339 

 390 



372 

 513 



649 



Approoti- 

 mate 

 age. 



Months. 

 36 

 48 

 60 

 60 

 II 

 13 

 23 

 25 



35 



37 



9 



9 



9 



9 

 9 



21 

 21 



21 



33 



28 

 28 



20 

 20 



2,5 

 33 



In experiment 217 steer J was fattened previous to periods 3 and 4 

 with the result of greatly increasing his basal katabolism both per head 

 and per unit of surface (6). The result in these two periods, therefore, 

 does not seem to be comparable with the others and has been omitted 

 in the following comparisons. Steer C had also been full-fed from birth 

 for the production of baby beef, but was by no means so fat as the more 

 mature steer J and has been included in the discussion. 



