
TUBERCULOUS COWS AND USE OF THEIR MILK. 159 
During the first two years that the cows were at the Station 
four calves were kept in the stable with them a large part of 
the time, and were fed the milk of the diseased cows, but in 
no case did the calves show any sign of the disease as far as 
could be detected by the tuberculin test or by physical symp- 
toms. The following is a brief history of the feeding tests 
which have been made during the three and one-half years 
that the cows have been at the Station. 
heeding Calf A with the milk of Cows 1344 and 1341.—This 
calf was dropped December 25, 1896, by a vigorous grade cow 
in the college herd. The calf was fed the milk of cow No. 
1344 from January 7 to March 28, 1897. It was tested with 
tuberculin January 26-27, and again March 29-30, 1897, but 
gave no response to either of the tests. At that time the supply 
of milk from cow No. 1344 was less than the calf seemed to 
need, and it was fed the milk of cow No. 1341. Calf A was 
fed the milk of this cow from April 1, 1897, to July 9, 1808. 
In May, when about a year and a half old, it was castrated, 
and was sent to pasture early in July following. At the time 
this steer went to pasture it was a vigorous animal weighing 
about 500 pounds. Early in November steer A was returned 
to the same stable with the tuberculous cows, and during the 
following winter was fed a suitable ration for fattening. The 
animal was sold for beef in April, 1899. Tuberculin tests of 
this animal were made January 26-27, March 29-30, July 
20-31, september 27-28, December 17-18, 1897, and April 
11-12, and December 22-23, 1898, and again just before being 
sold for beef, April 11-12, 1899. From this record it may be 
seen that this animal was fed the milk of two of the tuberculous 
cows for about a year and a half, was then at pasture for about 
four months, then it was again kept in the same stall with 
the tuberculous cows for another period of five months. ‘The 
animal remained healthy, as far as was indicated by the tuber- 
culin test or by physical examination, up to the time of 
slaughter, when nearly two years and four months old. 
Feeding Calf B with the milk of Cow 1343.—This calf was . 
dropped by a vigorous Jersey cow in the college herd, Feb- 
ruary 20, 1897, and was ten days old when the feeding period 
began. When about two weeks old it was tested with tuber- 
culin, and gave no response. From March 1, 1897, to early 
