197 



corn they would eat. A preparatory period of seven days preceded the 

 experiment. The first feeding period extended from ]S"ovember 12 to 

 December 1), and the second period from December 31 to January 20 — 

 twenty-one days each. During the three weeks' interval between the 

 first and second periods the pigs ran together in a pasture and were fed 

 whole corn for two weeks, the third week being a preparatory period. 

 First period: Nos. 1 and 2 each received daily 8.G pounds of corn 

 meal and consumed 3.30 pounds of food, costing 2.G4 cents per pound 

 of pork produced ; Nos. 3 and 4 each received daily 7.35 pounds of 

 whole corn and consumed 5.36 pounds of food, costing 3.4'") cents per 

 pound of pork produced. 



Second period : Nos, 1 and 2 each received daily 10.28 pounds of 

 corn meal and required 3.23 pounds of food, costing 2.58 cents for the 

 production of 1 pound of pork ; Nos. 3 and 4 each received daily (5.54 

 pounds of whole corn and required 3.84 i)ounds of food, costing 2.39 

 <ients for the production of 1 pound of iiork. 



In other words, the two pigs fed corn meal gained in the two periods 

 122 pounds on food costing $3.17, or 2,6 cents per pound of increase, 

 and' the two pigs fed whole corn gained, in the same time, 63.5 pounds 

 on food costing $1.82, or 2.87 cents per pound of increase. " When 

 butchered the meat of those fed upon corn meal was whiter and firmer 

 than that of the corn-fed pigs." 



Arkansas Station, Bulletin No 12, April, 1890 (pp. 12). 



Influence of spaying on milk production, E. R. Dinwiddie, 

 V. S. — This experiment was undertaken (1) to study the efiect of spay- 

 ing on the quantity and quality of milk, and (2) to observe the length 

 of time a cow of average milking capabilities will continue to give milk 

 in paying quantity after spaying. Two " average milking cows of the 

 district," each four years old, were spayed by the Charlier method two 

 months after calving. Each cow received daily 12 pounds of hay, 6 

 pounds of wheat bran, 1.5 pounds of cotton-seed meal, 3 pounds of corn 

 meal, and pasturage during the day. A table shows a decrease in one 

 case of 8 and in the other of 12 pounds in live weight (as indicated by 

 the scales) after spaying, followed after about two weeks by a regular 

 increase. The average of the analyses and daily weights of the milk 

 of each cow before and after spaying was as follows: 



Quantity and quality of milk before and after spaying. 



