198 



THE CHEMISTHY OF THE FARM 



writers. It may be well, therefore, to quote some of 

 the results of the pig-feeding experiments at Botham- 

 sted, in which the animals were intentionally supplied 

 with very various proportions of nitrogenous matter in 

 their food. 



FATTENING PIGS ON FOODS RICH AND POOR IN 

 ALBUMINOIDS. 



These results show in an unmistakable manner that 

 the quantity of total organic matter needed to produce 

 100 lbs. of fat pork remained in all cases nearly the 

 same, notwithstanding the great variations in the 

 quantity of albuminoids supplied. The ratios of nitro- 

 genous to non-nitrogenous substance given in the 

 table are merely the ratios of these substances in the 

 food supplied, the albuminoid ratios of the digested 

 matter would be considerably wider. 



