13 



CATTLE-FEEDING TESTS WITH GREEN LEAVES. 1918-1910 



Feeding Arrow-Grass in Hay. 



The following feeding tests were made with sheep and cattle to 

 determine the effect of various proportions of dry arrow-grass when 

 put up in hay and fed. The plant material for these feedings was 

 collected in 1919 on a ranch near Reno. One lot of 26J pounds of fresh 

 arrow-grass was collected June 3, 4 and 5 and air-dried to 5J pounds. 

 Another lot of 38J pounds was collected on August 9 on the same ranch 

 and air-dried to 9 pounds. 



SHEEP-FEEDING TESTS WITH AIR-DRIED ARROW-GRASS 



TESTS WITH A YEARLING CALF 



Thirteen feeding tests were made with the air-dried material fed to 

 , six of which tests either made the animal very sick or else caused 

 death. These tests prove conclusively that small amounts of the dried 

 plant are highly poisonous to sheep. The smallest amount which was 

 fatal to a sheep was 2J ozs., the average fatal dose being approximately 



