182 Agkicultdkal Expeeiment Station, Ithaca, N. Y. 



apparently composed of dried meat, blood and small pieces of bone. 

 This meat scrap contained nearly ten per cent of nitrogen. 



It will be noticed that the value of the excrement per ton is nearly 

 the same in each of these three experiments, while the value recovered 

 per day is nearly twice as much when the ration consisted of corn meal 

 and meat scrap, as when corn meal, wheat bran and linseed meal were 

 fed. The highly nitrogenous ration greatly increased the liquid void- 

 ings and this, more than any other one thing, caused the great weight 

 of total voiding per day without proportionately increasing the per- 

 centage of nitrogen. 



The value of the excrement per ton was very nearly the same in the 

 three experiments, although the value j^er day was more than twice as 

 great in one experiment as in another. 



These pigs were fed a highly nitrogenous ration for the production 

 of lean meat and without doubt the excrement valued at seventeen 

 cents per day, from 1,000 pounds live weight of animal, is considerably 

 more than would have been obtained had the grain ration consisted 

 mostly of corn. 



Experiments 'with coxos. — In the experiments described thus far 

 a small number of animals have been kept on water-tight galvan- 

 ized iron pans for several ;days; with cows, however, it was thought 

 best to test a larger number of animals for a shorter period of 

 time, conpequently eighteen cows of the university herd were 

 kept tied in the stalls for twenty-four hours and bedded liberally 

 with cut wheat straw and the drops in the rear of the cows 

 sprinkled with plaster. The ration fed consisted of hay, corn, 

 ensilage, grain and roots as shown in detail for each experiment in the 

 following table: 



Food Cojssumed and Bedding Used. 



The ration fed during these experiments was the same as that 

 usually fed; no change of food was made in any way on account of 

 the manure experiments. The only change the cows were subjected 

 to was in confining them for twenty-four hours in the stalls, when the 

 practice had been to turn them out in the covered barnyard a portion 



