EXPERIMENT STATION REPORTS. 161 



been afFected had fully recovered at Iho lime of visit. Diagnosis not 

 made. 



Jan. 30. — Visited farm near Snnfield to investigate a repoi-ted case 

 of forage ])()is()ning. Farmer owning lliree liorses liad lost two. 

 the tliird one was sick. Tem]). 1)8, pulse 00 per min., weak, but regula]-. 

 conjunctiva and mucosa of nasal passage injected. Very slight sero- 

 purulent nasal discharge. Bowels constipated. The horse was down 

 and showed no ]>aiii. was in a slight comatose condilion but at times 

 would manifesi some restlessness. The owner informed me that each 

 horse had shown some difficulty in swallowing at the first of the attack'. 

 These horses had been fed on silage, corn fodder and corn. The silage 

 was of very ])Oor quality. The corn Avas over-ripe and no water was 

 used in packing into silo, resulting in a great deal of it spoiling. This 

 silage was also fed to some cattle kept on the farm. A heifer about 

 18 months old began to show some weakness in the hind limbs and a 

 dullness of expression. A dose of salts was administered and the silage 

 withheld, resulting in recovery. 



Feb. 3. — I again visited above mentioned farm near Suntield to hold 

 an autopsy on horse mentioned above. Lesions: Few hemorrhagic 

 areas in mucosa of fundus of stomach varying in size from 1 to 2 cm. 

 Liver of normal consistencv but bile stained. A few localized engorged 

 areas in spleen, maxillary sinuses contain about one-half pint each of 

 sero-purulent effusion. Mucosa of sinuses injected and in places there 

 are grayish de])osits of coagulated exudate. Mucosa of trachea and 

 bronchi injected. No effusion into cranial cavity nor into ventricles of 

 brain. Meninges and brain apparently normal. 



Feb. 11. — Investigated reported case of tuberculosis among cattle on 



farm of F. C. M , Hale. Onthis farm I found about 25 head 



of calves and yearlings but no adult cattle, which had been purchased 

 from various farms the previous fall. Prior to my visit, he had lost 

 3 calves, 4 to 8 months old. A local veterinarian, according to the 

 owner, had pronounced the trouble tuberculosis. I had no reason to 

 suspect tuberculosis of an exce])tionally acute type among these young 

 cattle, but found two or three which appeared to be affected with a 

 slight bronchial trouble. 



^A'hen these calves were purchased they were turned into a large 

 l)asture which borders on a lake about one mile wide. The only pro- 

 tection from the cold night winds was an old open house near the lake. 

 T had reason to suspect that some of these calves might be infested 

 \\ith the lung worm ( !:^trongylus micrurus). One calf A\as coughing 

 tpiite badly, breathing with some difiticulty and somewhat emaciated. 

 This calf was given an intratracheal injection of gasoline and a few 

 weeks later the owner wrote me that the calf had stopped coughing and 

 was getting along nicely. 



31ar. 8. — Investigated a reported outbreak of anthrax among cattle 

 on the farm oP I. C. M •, Forest Hill. Symptoms and. post- 

 mortem lesions typical of forage poisoning. 



Mar. 12. — A'isited farm of i\v. A. IT. , Shelby to give vac- 

 cine treatment for infectious abortion in cattle. 



]\rar. 21. — Found strangles in ]i\erv barn of Mr. X. N. , 



Cadillac. 



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