DAIRY FARMING DAIRYING. 



825 



"From the table it appears that the narrower nutritive ratios tended to increase 

 the percentage of fat, of total solids, and of nitrogen, and the proportion of the 

 total solids that are fat. . . . 



"Plainly, the fat content of the milk increased more rapidly when narrow nutri- 

 tive ratios were fed than did the other solids. . . . [As to the relative values of 

 cotton-seed meal and old-process linseed meal] apparently cotton-seed meal at $20 

 per ton is more profitable than linseed meal at $25.00. If, however, Ave rate the 

 cotton-seed meal at $25 per ton — the price put on the linseed meal — a daily net 

 profit of 14.29 cts. is returned, compared with 14.24 cts. from the linseed-meal ration, 

 or inactically the same amount." 



Effects of drought upon milk production, L. L. Van Slyke {N'ew 

 YorJ: State Sta. Bui. 10'), n. ,sn'., pp. 131-152). — This bulletin gives a 

 siiininary of the results of analyses of the milk of 50 herds of cows which 

 was taken to a cheese factory in the State during the season of 1895 

 (May to October). The object was to study the variations which milk 

 undergoes as the result of climatic conditions, notably of a severe drought 

 occurring early in the summer. A summary of the results by months is 

 given in the following table: 



rari((tiou of fat, casein, cheese, etc. 



Month. 



May 



J uiie 



July 



Augu.st . . . 

 September 

 October . . . 



Tat in 



100 lbs. of 



milk. 



Pounds. 

 3.58 

 3.59 

 3.71 

 4.04 

 3.97 

 4.20 



Casein in 



100 lbs. of 



milk. 



Poimds. 

 2.40 

 2.33 

 2.20 

 2.26 

 2.47 

 2.69 



Casein for 

 1 lb. of fat 

 in milk. 



Cheese | Cheese 

 niafle from ! made for 

 100 lbs. of lib. of fat 



milk. in milk. 



Pound. 

 0.67 

 .65 

 .59 

 .56 

 .62 

 .64 



Pounds. 

 9.94 

 9.77 

 9.58 

 10.10 

 10.54 

 11.35 



Pounds. 

 2.78 

 2.72 

 2.58 

 2.50 

 2.65 

 2.70 



The percentage of fat was about the same in June as in May, and after 

 that increased during the season. The casein, on the contrary, was less 

 in June than in May and still less in July. In June and July less cheese 

 was made from 100 lbs. of milk than in preceding months. 



"The decreased yield and cheese-producing power of the milk in July and August 

 were mainly due to insufficient nutrition caused by the drying up of the pastures. 

 Had the cows been properly supplied with abundance of nutritious, succulent food, 

 it is estimated that the yield of juilk and cheese would have been increased to the 

 extent of $5 a cow on an average. 



"In this State drought generally i>revails at some time during the summer. Pro- 

 vision should be made to supplement dried pastures. For this purpose corn silage, 

 alfalfa, and oat and pea fodder are recommended." 



Brief directions are given for the culture of these green fodders. 



Feeding experiments with milch cows, J. M. Bartlett {Maine 

 Sta. Rpi. lSf)5, pp. 04_3rj).— Wheat meal eompa red with corn meal (pp. 

 24-30). — A comparison was made on G cows in o periods of 21 days 

 each of feeding rations of 18 lbs. of timothy hay, 2 lbs. of cotton-seed 

 meal, and either 5 lbs. of wheat meal or 5 lbs. of corn meal. The 

 wheat meal Avas fed in the first and third periods and the corn meal in 

 the second period. The data relative to the experiment, including the 



