330 Annual Report Agricultural Experiment Station 



be graded and sold according to quality. The report from these 

 firms is given in Table XV. 



TAIiLE XV. COMMISSION FIRm's REPORT OF ARIZONA WOOL 



The cross-bred sheep yielded wool that was graded '\vestern 

 and low medium," while wool from registered Hampshire and 

 Shropshire sheep was classified "^ Semi and }i Semi." The price 

 secured for the cross-bred wool was distinctly higher than that 

 from the other sheep, but this is thought due primarily to the mar- 

 keting ability of the two commission firms. Another probable rea- 

 son for the difference may be the fact that over half the registered 

 sheep gave fleeces that were only 10 months old, and on this account 

 the wool w'as short in staple. Naturally the cross-bred wool has 

 more length of staple than that secured from the registered Hamp- 

 shire and Shropshire sheep, and there was a special demand for 

 that kind of wool during the past year. 



COTTONSEED CAKE FOR DAIRY COWS 



With the development of the cotton industry in Arizona, quan- 

 tities of cottonseed by-products have become available as stock 

 foods. It is well known that these feeds are high in food value and 

 they are used extensively for live stock feeding in the older cotton 

 districts. Their use in Arizona has become quite extensive since 

 under government supervision they have been placed on the market 

 at very reasonable prices. 



This experiment was planned to test the value of cold pressed 

 cottonseed cake as a su])i)lement to alfalfa hay and corn silage. To 

 test the relative value of various combinations three rations were 

 taken, each containing as nearly as possible the same energy value. 

 The rations used were as follows: 



Ration 1 — 15 lbs. alfalfa hay 



40 " silage 

 Ration 2 — 22 lbs. alfalfa hay 



4 " cottonseed cake 



