FARM MANURE 137 



The nitrogen in the food consumed influences the 

 amount of water in the manure. As a rule, a highly 

 concentrated nitrogenous ration, produces a higher per 

 cent, of water in the manure than a well-balanced 

 ration. There is but little phosphoric acid in the 

 liquid excrements of horses and cows, while the urine 

 of sheep and swine contains appreciable amounts of 

 this element. 



The liquid manure is more constant both in compo- 

 sition and amount than the solid excrements. This 

 fact may be observed from the following table, which 

 gives the composition of the solid and liquid excre- 

 ments from hogs when fed on different amounts of 

 grain. 57 



Solid excrements. Liquid excrements. 



(In each experiment the amount of liquid excrements was four pounds.) 



