432 EXPERIMENT 3TATI0K RECORD. 



"In general, there was the largest yield of milk and the largest butter production 

 with narrow rations, i. e., those rich in protein. Wide rations — low in protein — did 

 not, in these instances, favor large milk or butter production. . . . Narrow rations — 

 rich in protein — were the more economical. 



"Our farmers need to make a much closer study of the individual cows of their 

 herds and to reject the unprofitable ones. The relative productiveness of cows can 

 be easily and cheaply studied by the use of the Babcock milk test, together with 

 daily weighings of the milk product. 



"A closer study of the value and economy of the feeding stuffs produced on the 

 farm is important. Such feeds as clovers, corn fodders, corn stover, oat hay, and 

 peas and oats, should be more largely grown. These have little value in the mar- 

 kets, while for feeding many of them are fully equal to, and some more valuable 

 than, the best grades of hay. When first-class hay sells for from $15 to $18 per ton, 

 it is one of the most expensive dairy feeds. 



"The nitrogenous (protein) feeding stuffs, like clovers, cotton seed, linseed, and 

 gluten meals, should be more extensively used as dairy feeds. These feeds have 

 been shown to exert a greater influence on the quantity and quality of animal 

 products than corn and even wheat feeds, and when the manure is carefully saved 

 they are of great value for keeping up the fertility of the farm." 



Experiment in warming a stable for cows, W. P. Brooks {Mas- 

 sachusetts Hatch 8ta. Rpt. 1895, p. 205).— A test, lasting from December 

 18, 1894, to March 8, 1895, was made with 6 cows, divided into L* lots of 

 3 each, on the effect of a warm stable in winter on the yield of milk 

 and butter. One lot was kept in a stable heated by means of hot water 

 pipes to about 55° F., and the other lot was kept in a stable not heated. 

 The experiment was divided into 4 equal periods. At the end of the 

 first period the lots were reversed, and reversed again at the end of 

 the third period. In each case after the change the first week was 

 regarded as a iDreliminary period. 



"The apparent influence of the warm stable upon milk and Initter fat production 

 is small. On the average, there is rather more milk and butter fat in tlie warm 

 stable. The most certain effect brought out by our experiments is the lowering of 

 the percentage of fat in the milk in the warm stable. The increased product will 

 not nearly pay the cost of heating the stable. 



"With moderate artificial heat better ventilation can be secured, without making 

 the stable too cold for the comfort of its occupants, than is possible without artificial 

 heat." 



A year's experience with Bacillus No. 41 in general dairying, 



H. W. Conn {Connecticut Storrs Sta. Rpt. 1895, pp. i7-i0).— Following 

 the laboratory trials with the author's Bacillus No. 41, the attempt was 

 made to test its applicability in general dairy work. Certain ditticul- 

 ties were anticipated in this, among others the general carelessness in 

 many creameries, mistakes in handling the culture, and the bacteria 

 already present in the cream. It was impossible, except in a few cases, 

 for the author to control the work at the creameries where these trials 

 were made, and it was necessary for him to prescribe certain rules for 

 guidance in the use of the culture, although it was realized that no 

 definite rules could be formulated which would apply to all conditions. 

 The danger was that butter makers would follow the directions so 

 closely and blindly that in certain conditions of weather the cream 



