Investigations into the Nature, Causation, and Prevention of Texas or Southern Cattle Fever Page: 178
301 p. : ill. (some col.) ; 24 cm.View a full description of this book.
Extracted Text
The following text was automatically extracted from the image on this page using optical character recognition software:
178 TEXAS OR SOUTHERN CATTLE FEVER.
October 15.-Temperature, 101; pulse, 78; respiration, 33. A few ticks on animal.
To-day is the only time the blood was examined. Corpuscles normal; 4,836,000 in a
cubic millimeter. Urine passed during the examination was pale yellow. Specific
gravity, 1040. Reaction strongly alkaline. No albumen.
(For temperature record, see pp. 271, 272, 277, and 278.)
No. 54 (native).-Red heifer, 2 years old, from Maryland. Placed, June 27, in field
II (North Carolina cattle without ticks).
September 6.-Apparently no result up to date. Transferred with No. 53 to field
I (North Carolina cattle with ticks).
September 20.-The heifer is lying down and rises only when urged. Led with
difficulty to the laboratory. The temperature has fallen to 101.2 F. Animal killed
by a blow on the head at 1 p. m., when it seemed quite certain that she would not
live through the night. Shortly before death the blood was examined fresh, with
and without salt solution, as well as stained in alkaline methylene blue. A small
number of red corpuscles were found containing the micro-parasite. At the same
time the corpuscles were counted and found to number 1,075,000.
Autopsy notes: On udder and pubic region a moderate number of ticks.
Spleen very large and engorged; 22 inches long and 7 inches across the widest por-
tion. The pulp is very soft, though not yet disintegrated. Many of the red cor-
puscles contain the parasites, chiefly in pairs and having the form of an apple-seed.
The two bodies are, as a rule, close together, parallel, slightly diverging, or end to
end.
On the epicardium of the heart, ecchymosis limited chiefly to the left ventricle.
Respiratory organs normal.
Fourth stomach shows a few superficial erosions of the mucosa, with hemorrhagic
base. Duodenum and upper jejunum bile-stained. Mucosa of small and large in-
testines normal.
The liver but slightly discolored, and scrapings examined fresh under the micro-
scope show very little injection of the bile capillaries. Bile holds no solids in sus-
pension although the color is very much deepened. In blood from the liver a large
number of intraglobular bodies seen, both in fresh and stained preparations. They
also occur in pairs, some being round, some having the apple-seed form. The indi-
viduals of each pair are, as a rule, of the, same size, although this is not invariably
true.
Kidneys on section are of a dark red color. The urine is of a dark wine color and
quite opaque, although it holds no solids in suspension; reaction acid. On boiling,
a brownish flocculent scum rises to the surface. In blood from the kidneys a very
large number of red corpuscles contain the parasites, quite invariably in pairs, as in
spleen and liver.
From the organs a number of cultures were made in different media. Three in-
oculated with blood, and four with bits of spleen pulp, remained sterile. In a bouil-
lon tube of the blood a small streptococcus appeared. In a bouillon peptone tube
inoculated with a bit of liver tissue a diplococcus appeared. In a glycerin agar
tube no development took place, while in a blood serum tube a small oval coccus
grew. In cultures made from the kidney various germs appeared, such as a strepto-
coccus, a vibrio, and a small coccus. These were probably mainly contaminations
from the air, as the cultures were prepared at the station, where opportunity for con-
tamination is favorable. (For the temperature record, see pp. 271 and 272.)
No. 55 (Southern).-Heifer; age,.31 years; from near New Berne, N. C., received
September 14, 1889, and placed in field IV after ticks had been picked off.
July 2, 1891.-Kept in stock since 1889, but not exposed to Texas fever in 1890.-
On this day exposed in field VI (North Carolina cattle with ticks).
August 29, 1891.-Temperature, 102.1; pulse, 72; respiration 54. Red corpuscles,
5,103,000. Nothing abnormal in fresh or stained preparations.
October 20.-No result from this exposure. (For temperature record, see p. 286).
Upcoming Pages
Here’s what’s next.
Search Inside
This book can be searched. Note: Results may vary based on the legibility of text within the document.
Tools / Downloads
Get a copy of this page or view the extracted text.
Citing and Sharing
Basic information for referencing this web page. We also provide extended guidance on usage rights, references, copying or embedding.
Reference the current page of this Book.
Smith, Theobold & Kilborne, Fred Lucius. Investigations into the Nature, Causation, and Prevention of Texas or Southern Cattle Fever, book, 1893; Washington D.C.. (https://texashistory.unt.edu/ark:/67531/metapth143538/m1/198/: accessed July 16, 2024), University of North Texas Libraries, The Portal to Texas History, https://texashistory.unt.edu; crediting University of Texas Health Science Center Libraries.