Arizona Agricultural Experimijnt Station 293 



vvhicli laid an egg that was lighter than the other cross-breds, there is a 

 striking uniformity in the weight of the eggs laid by the birds of dif- 

 ferent breeding. Thus the South African hens averaged 1507.11 grams, 

 while the Nubian averaged 1596.95 grams, and the cross-bred 1648.0 

 grams. There was not one of the South African hens in 1916 that laid 

 eggs as large as any of the Nubians or cross-breds with the exception 

 of 2305, as previously mentioned. The South African yielded eggs 

 that averaged 89.85 grams less than the Nubian and 140.89 grams less 

 than the cross-breds. These figures are similar in many respects to 

 those secured the previous year. 



INSTRUCTION AND EXECUTIVE WORK 



Along with investigations summarized above time was given to 

 teaching students and conferring with practical farmers who came for 

 personal advice. The correspondence has been unusually heavy and 

 considerable executive work has been required in the department. A 

 reinforced concrete silo has been installed at the University Farm, and 

 also a silo filling outfit. Other facilities for taking care of the livestock 

 at the farm have been secured. 



There has been little change in the number and kind of animals 

 maintained on the University Farm. During the past year 11 cows 

 completed lactation period averaging for the herd 55 days dry before 

 calving, 332 days in milk, and yields of 8231 pounds of milk, and 327 

 pounds of butter fat. The registered Hereford cows all dropped calves 

 within the year, and most of these have been sold at ruling prices. 

 During the year the University purchased four registered Hampshire 

 ewes, and these are also retained for class room work, along with 

 the Shropshire and Tunis breeds. 



Four breeds of chickens, namely : Single Comb White Leghorns, 

 Single Comb Rhode Island Reds, White Plymouth Rocks, and Black 

 Langshans are being maintained in the poultry plant. These are used 

 chiefly for class room purposes. 



A special efifort is being made to develop uniform flocks and herds 

 suitable for experimental purposes in the future. The livestock main- 

 tained is entirely inadequate for these purposes, but it is hoped that the 

 numbers may be increased, and the quality improved so that the 

 animals will be especially suitable for investigation and class room 



purposes. 



R. H. Williams, 



Animal Husbandman. 

 W. S. Cunningham, 

 Assistant Animal Husbandman. 



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