272 



MANUAL OF CATTLE-FEEDING. 



Two series of experiments were made. In tine first, the 

 daily ration consisted of 13.2 lbs. of oats, 11 lbs. of liay, 

 and 3.3 lbs. of cut straw; in the second, of 16.5 lbs. 

 of hay and 8.8 lbs. of beans. In the following tables are 

 to be found the amount of work performed per day in each 

 experiment, and the percentage digestibility of the several 

 nutrients, reckoned on the total ration. 



Sebies I. 





BiGESTIBIMTY. 



Work performed per 



day. 

 Kilogramme-meters. 



Total 



Orgamc 



substance. 



Per cent 



Protein. 

 Pel cent 



Pat 

 Per cent. 



Crude fibre. 

 Per cent. 



Nitrogen- 

 free extract. 

 Per cent. 



475,000 



050,000 



1,435,000 



950,000 



475,000 



58 73 

 58 63 



58 m 

 m 41 

 54 83 



70 84 

 67.63 

 69 95 

 66 63 

 68.31 



53 05 

 53 55 

 45 90 

 48 73 

 45 99 



31 34 

 39 03 

 83 33 



35 83 

 36,95 



68 37 



69 61 

 68 37 

 67 65 

 64 41 



Sebies II. 



6ao,ooo 



1,800,000 

 600,000 



60 04 



77.46 



34.00 



38 55 



58 48 



75 00 



13 61 



34 73 



57.69 



74 60 



10.13 



34.50 



66 80 



67 30 

 66.05 



In each series the digestibility decreases slightly toward 

 the close, but this is obviously independent of the 

 amount of work performed. It was probably caused by a 

 deterioration in the quality of the hay consequent on keep- 

 ing and handling- 



bi these experiments, then, the digestibility of the fod- 

 der was not affected by the amount of work performed. 



