
TUBERCULOUS COWS AND USE OF THEIR MILK. TSE 
Care of the cows, and tuberculin tests after they were taken in 
charge by the Station.—When the cows were brought to the 
Station they were placed in a high, light, and airy stable, 
affording about 1,500 cubic feet of air space per cow, although 
later several calves occupied the same stables with the cows. 
The Station barn is located about eighty rods from the College 
barn, and the tuberculous animals have been kept separate 
from any other cattle. Adjoining the stable is a yard about 
one-half acre in area, where the animals can exercise. In 
mild weather they have occupied the yard most of the day. 
No special treatment for the disease has been attempted, but 
good care and feed have been afforded at all times. Plans were 
made whereby the animals could be subjected to the tuberculin 
test from time to time. These tests were, in most cases, made 
by the College veterinarian. 
The four cows have been under the care and observation of . 
the Station for three and one-half years at the time this report 
closes (May, 1900). Accounts of the general health of the 
animals, and the results of tests on the use of their milk in 
feeding both their own offspring and calves from healthy cows, 
have been given in the last two reports of the Station. Up to 
September, 1897, these tests were made by Dr. George A. 
Waterman. ‘The test in September, 1897, was made by Dr. 
|. J. Storrs, as the College was temporarily without a vet- 
erinarian. Beginning with December, 1897, the tuberculin 
tests, and threé physical examinations, have been made by 
Dr. N. S. Mayo. Since that time the tuberculin tests of 
the cows have been made less frequently than for the first 
year that the animals were at the Station. In the tests made 
_by Dr. Waterman only two temperatures were taken before 
the tuberculin was injected, while in the tests made by Dr. 
Mayo temperatures were taken every two or three hours 
for a period of twelve to fifteen hours before injection. In the 
tables only the maximum and the average temperatures before 
injection are given. A rise of two or more degrees above 
the maximum temperature before injection, occurring within 
twenty-four hours after injection, is considered a response to 
the tests. ‘The tuberculin tests made since January 1, 1897, 
are shown in the following table. The temperatures which 
indicate a response to the test are printed in bold-faced type. 
