DAIRY HERD RECORDS. 



By Gordon H. True. 



INTRODUCTION. 



ARIZONA AS A MARKET FOR DAIRY PRODUCTS. 



Among the agricultural pursuits of Arizona the dairy indus- 

 try is one of much importance. The home market for agricul- 

 tural products, including those of the dairy, will always be good. 

 It is generally estimated that less than half of the butter and 

 cheese consumed in the Territory is of home production, and, 

 with an already great mining industry increasing from year to 

 year, and with agriculture limited by the meager rainfall upon 

 which it must depend for its necessary irrigation water, this must 

 always be the case. 



With a good market for his product assured, the dairyman 

 will find that his profits depend largely upon certain conditions, 

 all of which are in part and some entirely under his own control. 

 Among these may be mentioned the cost of manufacture, the 

 quality of butter and cheese made, and the quality of cows kept. 

 It is the object of this bulletin to give the results of some investi- 

 gations bearing on the one condition mentioned which is entirely 

 within the control of the dairyman, — the quality of cows kept, 

 but it may not be out of place in this introduction to touch upon 

 the other conditions named. 



COST OF MANUFACTURE. 



The cost of production, if he be a creamery patron, is not 

 controlled by the single dairyman; but experience has taught that 

 the co-operative system of manufacture is most successful, and in 

 the dairy districts factories operated by stock companies have fol- 

 lowed the co-operative plan. The best of results can be attained 

 only when the spirit of co-operation exists between the manufac- 

 turers and the patrons. At present much butter is made in pri- 

 vate dairies on account of the cost of manufacture at the cream- 

 eries. This is not to be wondered at when it is known that the 



