MAINTENANCE RATIONS OF CATTLE. 43 



Maintenance rations of oxen — Kcllner. 





Live . 

 weight. 



Stable 

 tempera- 

 ture. 



Maintenance ration 

 (metabolizable energy). 



Per head. 



Per 500 

 kilograms. 



Per 1,000 

 pounds. 



Tallin c\t\ i"ma.lQ * 



Ox V 



Kilos. 

 602.' 1 

 611.5 

 619.8 

 622.8 

 632.1 

 632. 4 

 644. 

 67L7 



14.7 

 15.9 

 15.9 

 14.9 

 14.7 

 15.0 

 14. 8 

 16.' 5 



Therms. 

 11. 675 

 17. 966 

 12. 766 

 15. 861 

 13.284 

 14. 457 

 11.771 

 15. 213 



Therms. 

 10. 316 

 15. 709 

 11. 060 

 13. 701 

 11. 352 

 12. 3G2 

 9. 944 

 12.486 



Therms. 



9.668 

 14. 721 

 10. 365 

 12. 840 

 10. 639 

 11. 585 



9.320 

 11. 702 



OxB 



Ox A 



Ox IV 



Ox III 



Ox II 



Ox VI 



Ox XX 





14. 124 

 13. 575 



12. 116 

 11. 603 



11.355 

 10. 874 



Average, omitting ox B 







Fat animals: 



Ox 1 



748.0 

 750.0 

 858.0 



15.9 

 15.2 

 16.1 



23.449 

 19. 385 

 22. 162 



17.93 

 14. 79 

 15.46 



16.80 

 13.86 

 14.49 



Ox B 



0x3 



Average 



21. 656 



16. 06 



15.05 









The observed maintenance ration of ox B is notably larger than that of the 

 other animals. This animal refused to lie down during the respiration experi- 

 ments and presumably, therefore, the result obtained with it is abnormally high. 



Omitting this result, the maximum, minimum, and average maintenance 

 rations per 1,000 pounds live weight were : 



Metabolizable energy required for maintenance of cattle per 1,000 pounds live 



weight — Kellner. 



Per 1.000 

 pounds 



live 

 weight. 



Thin animals: 

 Maximum 

 Minhnum . 

 Average . . 



Fat animals: 

 Maximum 

 Minimum. 

 Average.. 



Therms. 

 12.84 

 9.32 

 10. 87 



16.80 

 13.86 

 15.05 



If we are justified in assuming, on the basis of Armsby and Fries's results, 

 that approximately 57 per cent of the metabolizable energy of these rations 

 was available, then the foregoing amounts of metabolizable energy are equiva- 

 lent to the following amounts of available energy : 



Computed available energy required for maintenance of cattle — Kellner. 





Per 1,000 

 pounds 



live 

 weight. 



Per 500 

 kilograms 



live 

 weight. 



For thin animals : 



Therms. 

 7. 32 

 5.31 

 6. 20 



9. 58 

 7. 75 

 8. 58 



Therms. 

 7.81 

 5.67 

 6.61 



10.22 

 8.42 

 9. 15 



Minimum 



Average 



For fat animals: 



Maximum 









