1904.] PUBLIC DOCUMENT — No. 33. 43 



F. Testing Dairy Herds. 

 Diirino; the year this department has tested cows at the 

 request of the Jersey, Guernsey and HoLstein cattle clubs. 

 Fifteen seven-day tests and (> yearly tests have been com- 

 pleted and 38 yearly tests are in progress. The tests are 

 made under the rule and regulations of the several clubs. 

 It requires at the present time the services of a man during 

 two weeks in each month, and in addition involves consider- 

 able clerical work. 



G. Work in Progress and completed. 



At the present time, experiments are in progress to note 

 the value of specially prepared dried blood and digester 

 tankage for milk production. It is believed that material 

 of this kind will be used considerably in the near future as a 

 source of protein for farm animals. Other experiments now 

 in operation are : («) to test the ciEcacy of a well-known 

 condimental or medicated food, for which extravagant claims 

 are made ; (5) digestion experiments on a variety of coarse 

 and concentrated feeds. 



Experiments were also continued with summer-forage 

 crops ; but, owing to the very unusual summer conditions, 

 definite results were not obtained, and they will be con- 

 tinued. An experiment is about to be undertaken to see if 

 it is economically possible for the average dairy farmer to 

 get along without the use of wheat bran, using silage as a 

 diluter for the more concentrated by-products. Experi- 

 ments have been completed with distillers' by-products, — 

 malt sprouts, dried brewers' and distillers' grains, — and the 

 results will soon be published in bulletin form. These ex- 

 periments emphasize the nutritive and economical value of 

 these several feeds as sources of digestible protein for milk 

 production. 



H. Addition to Staff. 



Messrs. W. E. Tottinghain, Albert Parsons and Joseph 

 G. Cook have been recently added to the staff of this de- 

 partment. Mr. Tottingham serves as assistant chemist, 

 taking the place made vacant by T. M. Carpenter, who 



