20 N. H. AGRICULTURAL EXPERIMENT STATION [Bulletin 199 



rated in the nutrition studies. These men enjoy an international 

 reputation, and would hardly come to New Hampshire to partic- 

 ipate in the experimental work here if they did not consider the 

 work of prime importance. Dr. Davenport's statement regard- 

 ing the sheep breeding experiments at Durham is given on the 

 preceding page. 



COST OF MILK FIGURES OBTAINED 

 One of the first moves preliminary to the present organization 

 of the dairy industry in the state was the Station's survey in 1905, 

 which was followed up by studies on the cost of milk production. 

 These milk-cost figures have been an invaluable foundation for 

 the later studies conducted by the College Extension Service 

 which have had such a potent influence in securing a fair price for 

 milk. 



The Advanced Registry tests of dairy cattle are conducted by 

 the Station. During the past three years tests have been super- 

 vised for 512 cows and official seven-day tests for 184 cows. Re- 

 ports obtained in connection with this work show that offsprings 

 of dams with A. R. records bring from 25 per cent to 75 per cent 

 more than offsprings from dams without records. As part of 

 the service work of the Dairy Husbandry Department samples of 

 milk and cream are tested upon request; all glassware used in the 

 Babcock tests is calibrated for accuracy; and examinations are 

 given for all who buy milk or cream on a butterfat basis. That 

 the College and Station practice what they preach in dairying is 

 shown by the records of the dairy herd that has been built up. 

 While this herd is not used for experimental purposes, it serves as 

 an illustration of what may be done with careful feeding and 

 management. One of its purebred Ayrshires, for example, has 

 made a record of 688 pounds of butterfat, and one of its purebred 

 Guernseys a record of 583 pounds. The cows are fed only with 

 grain available to any farmer in the state, and the roughage used 

 is hay and silage with some beet pulp. 



FIGURES SECURED ON BEEF CATTLE 



An example of the value which the Station may be in deter- 

 mining answers to definite questions arising in the state is well 

 illustrated by the feeding tests with beef cattle. AVhen hay is 

 plentiful, many a farmer considers whether or not it may profit- 



