OXYGEN IN MILK FEVER. 147 
OXVGEN IN MILK FEVER. 
BY DR. HH. H.-LEHNERT. 
CaseatC. A.C., May 24,1904. Physical condition excellent; 
in fact, the cow was so fat that Professor Beach anticipated milk 
fever. She calved on the morning of the 23d early, and was 
apparently in normal condition until the evening of the 24th. 
When seen at 10:15 P.M., she was just beginning to collapse, 
was lying down, and was made to rise with difhiculty. She 
was unable to stand, staggered, and fell. From ro:r5 till 
10:40 she grew steadily worse, so that when the gas was ad- 
ministered she was unconscious and lying with head on side 
(typical position ). 
At 10:40 oxygen was injected into udder, after milking out 
and carefully disinfecting teats. The gas was allowed to flow 
gently into udder until it was tense and full, then ends of teats 
were compressed, and vigorous massage Appiledae Vt Thee 
the cow was lying in natural position with head held up, and 
was quite bright and perfectly conscious. 
At 12:15 she was still brighter, and was eating hay, although 
still recumbent. At 1:30 A. M., same condition. At 3A. M., 
very comfortable. Got up and ate hay, in all respects seemed 
quite normal, except a little weak. At 5 A.M. standing, 
chewing cud. From this time nothing abnormal was noticed, 
except perhaps that she was inclined to lie down more than 
usual, and the flow of milk was small for a few days. No 
trouble with udder or digestion at any time. 
‘On June oth, sixteen days after coming down with the dis- 
ease, the cow gave thirty-four pounds of milk, and was being 
forced for a record which would make her eligible to the advanced 
registry. : 
She is now in the advanced registry. 
