AGRICULTURAL EXPERIMENT STATION. 



87 



assumptions emphasize, rather than otherwise, some of the princi- 

 pal lessons of the experiments. 



It would have required a large amount of time and labor to have 

 ascertained the composition and changes in the water content of 

 the numerous lots of corn meal fed during nearly a year and a 

 half, and it was felt that the purposes of the experiments did not 

 require this. There is so great a degree of uniformity in the 

 composition of Western corn that a large error is not probable in 

 assuming that the average of several lots will agree with the 

 general average of composition and digestibility. 



Experiment with Lots 1 and 2. 

 The feeding of the four pigs in these two lots was begun in 

 June 9th, when they weighed less than twenty-five pounds each, 

 and was continued until the animals were slaughtered in the fol- 

 lowing February. For the first seventy-seven days, or until 

 August 24th, both lots were fed a mixture of skimmed milk and 

 corn meal, the skimmed milk supplying two-thirds the digestible 

 matter with Lot 1, and one-third, with Lot 2, the total amount of 

 digestible matter in the ration being the same in the two cases. 

 After August 24th, the proportion of milk to meal was changed, 

 somewhat, and after October 27th, Lot 2 ate nothing but corn 

 meal and water. Lot 1 continued to eat milk until December 20th, 

 after which date this lot was given a ration consisting of one-third 

 pea meal and two-thirds corn meal. Until October 27th, the gain 

 of the two lots of pigs was practically the same, but from that 

 time on there was a marked difference in favor of Lot 1. These 

 pigs were from the same litter, and the lots were similar as to sex. 

 The figures giving a history of this experiment have been arranged 

 in a tabular form below : 



Daily Rations of Pigs. 

 Lots 1 and 2. 





Lot 1. 1 



Lot 2. 1 



Change in weight. 









c3 



"3 





c 











^ 





a 



V 



C 



g 



S 









0) 



3 



a 



c 



« 



p 



2 



r-5 



cq 





'^ 



,3 



u 



a 



fj 



,3 



L. 



■4J 



-k3 





^ 





o 

 '■J 



4) 



Pi 



^ 



02 



O 



o 



o 



O 





w 



w 



m 



cc 



CC 



cc 



CO 



m 



OT 





J2 



£ 



.Q 



jO 



^ 



£ 



£ 



^ 



jQ 







8 



h 



— 





4 



1 







June 9th to June 29th 



471 to 7U 



49 to 64i 



June 30th to July 26th.... 





12 



i 







6 



n 



71i to 102i 



64i to 93 



July 27thto Aug. 24th.... 





16 



1 







8 



2 



102i to 130 



93 to 123 



Aug. 25th to sept. 14th 





20 



U 







8 



21 



130 to 157 



123 to 154i 



Sept. 15th to Sept. 29th 





20 



2i 





3 



5 



44 



157 to 180i 



154i to 177i 



Sept. 30th to Oct. 27th 





20 



5 





3 



5 



6| 



ISOi to 247 



177i to 237 



Oct. 28th to Nov. 20th 





25 



7 





12 





10 



247 to 323i 



237 to 301 



Nov. 21st to Dec. 20th 





30 



lU 





15 





15 



323i to 453i 



301 to 408i 



Dec. 21st to Jan. 19th 



15 





10 



5 



15 





15 



453i to 577 



408 i to 600 



Jan. 20th to Feb. 19th.... 



15 





81 



4J 



15 





13 



577 to 690 



500 to 552 



