173 



or 6| tons per year, which can be saved. Boussingault's and Hofmeis- 

 ter's figures indicate this amount to be 54; to b\ tons, while Armsby's 

 put it at about 64, tons. Cows and other neat cattle produce manure 

 containing on an average 87 5 per cent of water. One hundred pounds 

 of dry matter consumed in food yields 384 pounds of manure, to which 

 must be added the amount of litter used, which, according to Heiden, 

 should be about one-third of the dry matter fed. Calculating on this 

 basis, a steer weighing 1,000 pounds and consuming 27 pounds of dry 

 matter per day would produce about 20 tons of manure per j T ear. 



Sheep excrete 49^ per cent of the dry matter of their food. The 

 manure contains on an average 73 per cent of water. One hundred 

 pounds of dry matter in ihe food would therefore. produce 183 pounds 

 of manure. A 60-pound sheep, fed 2 pounds of dry matter and receive- 

 ing three-fifths pound of bedding, would produce about 4.1 pounds o£ 

 manure per day, or three-fourths ton yearly. 



Careful observations have indicated that the pig produces from 12 

 to 16 pounds of manure per day, or from 2 to 3 tons per year. 



The following table compiled from a bulletin of the New York Cor- 

 nell Station shows the amount and value of manure produced by the 

 principal kinds of farm animals fed liberally and given sufficient bed- 

 ding to keep them clean, calculated to a uniform basis of 1,000 pounds 

 live weight : 



Amount and value of manure produced per 1,000 pounds of live weight 



of different animals. 





Amount 



Value 



Value 





per day. 



per day.* 



per year.* 





Pounds. 



Cents. 





Sheep 



34.1 



7.2 



$26.00 



Calves 



67;8 



6 2 



24.45 



Pigs 



83.6 



16.7 



60.88 



Cows 



74.1 



8.0 



29.27 



Horses 



48.8 



7.6 



27.74 



The fertilising constituents and the value per ton of the manure 

 obtained under the above conditions are shown in the following table 

 in which is inserted for comparison the results of analyses by Storer 

 of manure of hens, which is representative of that of fowls in general : 



Analyses and value per ton of manure of different animals. 





Water. 



Nitrogen. 



Phosphoric 



Potash. 



Value 







acid. 





per 













ton. 





Per cent. 



Per cent. 



Per cent. 



Per cent. 





Sheep 



59.52 



0.768 



0.391 



0.591 



$3.30 



Calves 



77.73 



0.497 



0.172 



0.532 



2. IS 



Pigs 



74.13 



0.840 



0.390 



0.320 



3.29 



Cows 



75. 25 



0.426 



0.290 



0.440 



2,02 



Horses 



48.69 



0.490 



0.260 



0.480 



2.21 



Hen manure ... 



56.00 



0.80 to 2 



0.50 to 2 



0.80 to. 90 



7.07 



* Valuing nitrogen at 15 cents, phosphoric acid at 6 cents, and potash at 4£ cents 

 per pound. 



