342 
CHAS. SCHMITT. 
describes the symptoms as follows : “ Intestinal invagination 
is the most frequent cause of colic in oxen, and is more common 
in this animal than in the horse. It is ascribed to colds, and 
violent efforts on ground which has an irregular -surface, which 
causes discharge of the peristaltic movements.” 
Invagination is sometimes latent during some hours follow¬ 
ing its production. The complications which arise may de¬ 
velop slowly. Ordinarily its symptoms are quite expressive; 
the animals are suddenly attacked by more or less violent pains 
without any previous indigestion. These attacks persist from 
six to twelve hours, then disappear abruptly and entirely as if 
cured ; but the depression and broken-down condition as well 
as cessation of rumination, diarrhoea, or the expulsion of small 
quantities of dried fsecal matter, indicate the persistence of the 
trouble. The constipation becomes obstinate and does not yield 
to any purgative. Under the action of violent expulsive efforts 
on the part of the animal thick mucus, often mixed with dark 
blood, escapes through the anus. The peristaltic movements 
are completely suspended, and the abdomen becomes greatly 
distended by the accumulation in the intestines of gases which 
are formed there in abundance. On palpation we may detect an 
intense sensitiveness of certain regions. The pulse is small and 
accelerated, but the temperature is hardly increased ; sometimes 
it is even lower than normal. The body is cold, the patients 
are apathetic and in a comatose condition. We can recognize 
the invagination.by rectal exploration. The hand perceives a 
cylindrical enlargement more or less extended along the intestine. 
The same author perceives that invagination occurs mostly 
in the small intestine, although Degive’s experience is that both 
the small intestine and the floating colon are the seats of the 
trouble. I must agree with Degive’s experience. I have ob¬ 
served it both in the small intestine and floating colon. The 
majority of the cases are of the small intestine. 
The symptoms that I recognized are, first, colicky pains ; the 
animal stamps with his feet, lies down and gets up, switches 
with his tail and shakes his head, continuing so for fifteen or 
1 o \ 
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