July 9, 191 7 Rate of Passage of Food Residties through Steers 



59 



Table III. — Results of slaughter tests 



Steer No. 



Percent- 

 age of 

 dry mat- 

 ter under 

 2 mm. 



52- 

 49. 

 46. 



45- 

 44- 



53- 



6. 10 

 5-83 

 8-39 

 6-75 

 6. 07 

 6. 20 



Table IV. — Calculation of time required for food passage 



Steer No. 



52 

 49 

 46 



45 

 44 



53 



Daily 

 intake of 

 dry mat- 

 ter. 



Daily 

 outgo of 

 dry mat- 

 ter. 



Kgm. 



1. 6565 



2. 6340 



3- 4730 



3. 8400 

 I. 8170 

 I. 2060 



Kgm. 



0. 8206 



1. 2446 

 I. 5022 

 I. 5186 



•5231 

 -3450 



Half- 

 intake -t- 

 half-outgo. 



Kgm. 

 1. 2386 



1. 9392 



2. 4876 

 2. 6793 

 I. I70I 



•7755 



Dry mat- 

 ter of 

 steer 



contents. 



Kgm. 



6. 490 



7. 260 



8.358 

 8.382 

 3.670 



2. 269 



Time 



required 

 for food 

 passage. 



Days. 

 5-24 

 3-75 

 3-36 

 3- 13 

 3- 14 

 2. 92 



Table V. — Average digestion coefficients of the nutrients of the several rations as deter- 

 mined by several digestion trials, showing gains or losses in cases of compound rations 

 where the gain or loss results from the combination 



Ration No, 



Gain or loss. 



4 



Gain or loss. 



5 



6 



Percentage of silage 

 and cottonseed 

 meal in ration. 



Silage. 



Per cent. 

 40 

 60 

 40 



60 



Cotton- 

 seed 

 meal. 



Per cent. 



O 



O 



60 



40 



60 

 40 



Dry mat- 

 ter. 



50-45 



52-74 



56.78 



— 4. 62 



59- 70 

 + 1. 10 



71-25 

 71-25 



Ash. 



80. I 

 44-8 

 52. 2 

 -f 12. 4 

 59-7 



-1-21. I 



Nitrogen. 



87.1 

 88.8 



83.4 

 -0.9. 



52. I 

 -fo. 6 



81.9 



81.9 



Crude 

 fiber. 



75-0 

 70.4 



44-3 

 -28.6 



87.0 

 -14. 6 



61. o 



61. o 



Nitrogen- 

 free 

 extract. 



39-2 

 44-8 

 53-7 

 +4.1 

 60. 2 

 + 10. 7 

 63.6 

 63.6 



Fat. 



64 



65 



90. 



— o. 



85 



— I 



96 

 96 



» Coeflficients derived from results on this ration are imreliable, so that figures given are those obtained 

 on the higher cottonseed-meal ration. 



The primary object of the slaughter test was to obtain the dry-matter 

 content of the alimentary tracts of the steers; but incidentally observ^a- 

 tions were made upon the size of the particles of food residue in the vari- 

 ous organs, from which evidence was obtained corroborating that fur- 



