titation Findings with Dairy Herds. 457 



In the preceding table the results for forty-five pure-bred cows 

 carried through seventy -two lactation periods are reported. The 

 valuations of feed stuffs by the different Stations vary somewhat, 

 so that the averages are not strictly correct in the combinations as 

 made; yet it is believed that these condensed figures are on the 

 whole in the best form for comparative study. 



in. Station Findings with Dairy Herds. 



689. The Station herds reported. — The practical dairyman is 

 interested in learning the results of operations conducted with 

 dairy herds for an entire year, knowing that such records, when 

 correctly reported, are of special value. Fortunately we are able 

 to present yearly tests at four widely-separated Stations to aid 

 those interested in reaching conclusions as to the cost of feed re- 

 quired in producing a given quantity of milk and fat. 



"Wing, of the Cornell Station, ^ reports the returns from a herd 

 of twenty cows, mostly Holstein and Jersey grades. Pure-bred 

 and grades of the leading dairy breeds constituted the herd of 

 tv,-etity-three cows at the Minnesota Station, ^ reported by Haecker. 

 Soule tells of the returns from a herd of twelve cows embracing 

 Short-horns and Jerseys at the Missouri Station.* The fifteen 

 cows in the Utah Station* herd, reported by Linfield, were com- 

 mon animals selected in the vicinity of the Station by means of 

 the Babcock test. Of course the cows were better than the 

 average in the vicinity. 



690. Prices allowed for feed. — The prices for feed as given 

 below are those assumed by the Station authorities presenting 

 the data of the herd trials. The student should compare these 

 [)rices with those ruling about him for feeding stuffs of the same 

 class. If the dairyman wishes to compare the results of these 

 trials with what he has accomplished with his own herd he can 

 do so without dif&culty by placing that value on each feeding 

 stuff used which represents its selling price in his local market. 

 Naturally the prices vary considerably, being highest in New 

 York and lowest at the West. 



1 Bui. 52. * Bui. 35. » Bui. 26. • Bui. 43. 



