EXPERIMENT STATION. Ill 



" New Jersey Agricultural Experiment Station. 



Bulletin XL — Ensilage. • 



In tliis bulletin we give the results of a feeding experiment 

 with corn ensilage. 



On November Ibth four cows of native breed were taken from 

 the herd at the College Farm, placed side by side in the same 

 barn and for a term of ninety-one days were fed, exercised and 

 milked at the same time. 



During the first period of twenty-eight days a ration was 

 divided among them, made up of twenty-two and one-half pounds 

 of clover hay, forty-nine pounds of wheat straw, seventy-five 

 pounds of brewers' grains, seventy-five pounds of turnips, and 

 seven and one-half pounds of cotton seed meal. It was calculated 

 to furnish daily to each 1,000 lbs. of live weight. 



2.5 lbs. digestible protein. 

 0.5 lbs. digestible fat. 

 12.5 lbs. digestible carbhydrates. 



This being according to German investigators the necessary 

 amount of food. 



For the second period of twenty-eight days no change was 



made in the ration fed cows Nos. I and IT, while in that fed III 



and IV, 100 lbs. of ensilage was substituted for 40 lbs. of turnips; 



in other respects it remained the same as that fed during the first 



. period ; it furnished daily to each 1,000 lbs. of live weight 



2.50 pounds digestible protein. 

 .90 pounds digestible fat. 

 14.90 pounds digestible carbhydrates. 



This was fed in order to determine whether an increased amount 

 of the heat-producing compounds, fat and starch, was rendered 

 necessai'v by the severitv of the weather. The additional food 

 caused no increase in the yield of milk ; cows I and II on the 

 poorer ration gave during this period more milk than during the 

 preceding. 



Our intention thus far was to ascertain the quantity of food re- 

 quired to keep these cows up to their full yield of milk. 



P''or the third period, of five weeks ending Feb. 17, Nos. I and 



II were fed the same as during the first and second periods ; to 



III and IV an equal amount of digestible food was given daily. 



