430 



Tabulated data are given rejjardin.s; the composition of the fodder 

 cum, corn silaj^e, wheat bran, and corn nicai fed ; teuiperatnre of stable ; 

 live weiglit of animals ; water drnnk ; food consumed f production and 

 quality of milk ; amounts of milk, solids, fat, and casein produced per 

 pound of digestible matter consumed ; weight and composition of butter 

 produced; churnability of milk fat; pounds of milk required to make 

 1 pound of butter ; average time required for churning; composition of 

 samples of butter fat; average composition of skim-milk and butter- 

 milk; number and size of fat globules in whole milk and skim-milk; 

 composition of dung and of food residues; and the co-efQcients of 

 digestibility of fodder corn and corn silage. The main results of the 

 experiments are briefly stated by the author as follows : 



(1) Tbo digestibility of corn silage is somewhat higher than that of dry foddercorn 

 of the same variety and maturity. The same holds good with the rations tried, where 

 bran and corn meal were fed in connection with the silage of fodder corn. 



(2) The digestible matter of corn silage and fodder corn have practically an equal 

 value for milk production. 



(3) The churnability of the milk fat was improved in the second experiment on 

 exclusive silage food ; in the first experiment no definite results were arrived at. 



(4) The fat globules of cows' milk increase in number and decrease in size as the 

 period of lactation advances. Dry food decreases the number and increases the size 

 of the fat globules. 



Experiments with fodder corn and silage, F. G. Short (pp. 

 12.V145). 



Yield and composition of different varieties of silage corn (pp. 123- 

 126). — Nine varieties of corn, comprising flint, dent, sweet, and silage 

 corn, were sampled September 6 by cutting the crop on an area of 120 

 square feet and from these large samples taking subsamples for anal- 

 ysis. From the data obtained the weight of green corn, and the total 

 dry matter, sugar, and protein in the same per acre were calculated for 

 eacli variety. The largest amouut of dry matter (14,070 pounds per 

 acre) was furnished by the Southern Horse Tooth, and this variety also 

 produced much the largest amounts of sugar and protein. It is evident 

 from the table that marked differences in composition as well as yield 

 exists between the Northern and Southern varieties, and that the 

 weight of green fodder per acre is no indication of the true value of the 

 corn. 



Method of planting and time of cutting (pp. 126, 127).— It is recom- 

 mended that large varieties be planted in rows 4 feet apart and the 

 kernels dropped singly about 8 inches apart in the row, small varieties 

 in rows 3i feet apart with the kernels dropped once in 6 inches, and that 

 the corn be cut when it has "just passed the glazing stage" with the 

 flint varieties, and when " well dented" with the dent varieties. 



Comparison of ensiling and shocMng fodder corn, and silage vs. fodder 

 corn for milk and butter production (pp. 127-141).— The experiments on 

 the first subject were in continuation of previous ones. Four silos were 

 lilled with three varieties of corn, and a part of the same crop of each 



