404 UNIVERSITY OF VIRGINIA PUBLICATIONS 



would be upset by this disease killing out the animals in the two most im- 

 portant loco pens — Groups VII and VIII. It was found necessary to build 

 up the general health of the sick animals by abundant rations of alfalfa. 

 This was continued for eight days, by which time the animals had improved 

 sufficiently to allow the experiment to be resumed. 



The following notes were made on August 18, the day after the experi- 

 ment was resumed. 



Groups I and II. All animals look well, no stiffness observed on motion; over 

 half of them have occasional cough, and a little mucus from the nose; eyes are clear, 

 and animals seem little troubled by cough. 



The stiff stems of alfalfa have remained uneaten. Food given two and a half 

 hours ago is eaten except for the stiff stems. Six sheep — some salted, some unsalted — 

 are still eating. Very little difference apparent between salted and unsalted animals. 

 Possibly unsalted are eating longer. 



Group III. Animals are in fair trim, eyes clear, but all have cough and sneeze, 

 which gives some distress. Almost every blade of hay given this morning is eaten, 

 and all five animals are picking at what remains. No hay at all is left from yesterday. 



Groups IV and V. Put in new corral of loco after 6 p.m. yesterday. This morning 

 (8.30), in upper part of corral loco is eaten down, seed tops and leaves eaten, occa- 

 sionally seed stalk left. In lower two-thirds of corral, loco still abundant. 



These bands of sheep (IV and V) are the best looking of all, the sheep are in good 

 flesh, eyes are bright; they are but little troubled by the cough, although most of 

 them have it, and are the nimblest and most active of any band. Possibly, as with 

 the sheep receiving full hay, the unsalted are a trifle fatter than the salted. One 

 salted yearling wether is a trifle stiff and is more troubled by the cough than the 

 .others. 



Group VI. So far as can be determined, the yearlings are as well off as those in 

 pen No. Ill, both as regards general condition, flesh and cough. The ewes are a trifle 

 thinner than the yearlings. The lambs are pretty badly off, Nos. 48 and 55 and 

 another lamb are especially weakly, their noses stuffed up, eyes bleary and dull. 

 All three lambs are undersized, weak and stiff in gait, and listless. Lamb No. 51 is 

 twice as large as the others, seems better, but suffers more from cough than the 

 yearlings. This lamb has all along eaten about double his share; another lamb is 

 also large and in fairly good condition. Four of the seven lambs are hardly any 

 larger than they were when received; the other three are undersized for their age but 

 much better off than the smaller ones. 



After feeding on full hay for eight days in order to relieve the cough, this bunch 

 was turned into a new corral at 11 a.m. yesterday. The sheep had stopped picking 

 the alfalfa which had been fed at 6 a.m. and a good deal still remained on the ground, 

 the sheep being collected in groups with heads together. Wlien turned into the new 

 corral, all animals at once began to graze eagerly, and continued for over an hour eating 

 grass and loco as it u'as found. The ewes and yearlings seemed to prefer the pods 

 and the lambs ate only the leaves of the locoweed. This morning over nine-tenths 

 of all loco is gone from the corral while not one-half of the grass seems to be gone. 

 Though careful observations were made yesterday and this morning, absolutely no effect 

 could he seen in the sheep or lambs as the result of the weed, in spite of the fact that the 



