382 EXPERIMENT STATION RECORD. 



milk yield, furnish in addition a manure from 10 to possibly 15 per cent more val- 

 uable than do wide rations. 



"While narrow rations will unquestionably produce more milk and butter than 

 wide rations, the relative cost of the milk and butter produced by the two rations 

 will depend upon the price of the concentrated feed stuffs. The markets, how r ever, at 

 the present time contain such a great variety of these products that the feeder can 

 select those rich in protein at prices that will enable him to feed the narrow or so- 

 called well-balanced rations to advantage. . . . 



" The average weights of the animals during both periods of each experiment are 

 practically identical. In the first experiment the milk appears to have suffered no 

 change in composition. In the second experiment the wide ration seems to have 

 slightly increased the solids and fat and diminished the nitrogenous matter.'' 



The relative value of different animals used in the 2 experiments is 

 brought out in a statement showing the yield and cost of butter from 

 the best and the poorest cows. 



"In Experiment I the best cow on the narrow ration produced 12.2 lbs. of butter 

 per week, at a cost for feed consumed of 14 cts. per pound, while the poorest cow 

 produced 8.26 lbs., at a cost of 19.37 cts. per pound. In the same experiment r>n the 

 wide ration one cow produced 9.52 lbs. per week, costing 16.67 cts. per pound, and 

 another 7.28 lbs. per week, costing 18.88 cts. 



" In experiment II the best yield with the narrow ration was 12.81 lbs. of butter 

 per week, costing for feed eaten 11.66 cts. per pound, and the poorest yield was 

 7.98 lbs., costing 15.90 cts. In the same experiment on the wide ration the best yield 

 was 10.92 lbs. weekly, costing 12.71 cts. per pound, and the least yield 6.86 lbs. 

 weekly, costing 16.21 cts. per pound." 



Feeding experiments with skim-milk feed for milch cows, 

 P. Hansson (Tidskr. Landtmiin, 17 (1890), pp. 381-385; Word. Mejerie 

 Tidn., 11 (1896), pp. 257-259). — An experiment is reported with 2 lots 

 of 13 cows each, covering a preliminary period and 3 regular periods. 

 Lot A received the regular winter ration throughout the experiment, 

 consisting of hay, straw, and chaff, and 4.7 kg. of mixed concentrated 

 feed, while lot B received 4 kg. of "skim-milk feed" per day per head, 

 prepared according to Lindstrom's method (E. S. K., 8, p. 248) and fed 

 in place of a portion of the grain feed. In the final periods both lots 

 had the regular winter ration. 



The results as to the value of the "skim-milk feed" were not as sat- 

 isfactory as those reported by Lindstrom (loc. cit.). The influence of 

 the composition of the ration fed with the "skim-milk feed" is pointed 

 out, and further carefully planned and conducted experiments with the 

 feed are recommended. — F. w. avoll. 



Experiments with stack silage conducted at Ultuna Agricul- 

 tural Institute, 1896, H. Juhlin-Dannfelt (Rpt. Machinery Trials 

 at Malmo Agl. Exposition, 1896. Lund, 1896, pp. 189-207).— -Two silage 

 stacks (Bluut's and Hermelin's processes) were filled the latter part of 

 June, 1895, with glyceria and marsh grass, about equal parts. Bac- 

 teriological and chemical analyses were made of the silage, and the 

 results are recorded. The temperature of the Blunt silage during the 

 first two weeks after filling ranged from 55 to 38° and the Hermelin 





