
TUBERCULOUS COWS AND THE USE OF THEIR MILK. 249 
1897, and on April 11 and 12, 1898. At no time has this calf 
shown any effects from the tests or any physical symptoms 
‘that would indicate the presence of the disease. It is now a 
large vigorous animal weighing about 500 pounds. 
About March rst, 1897, calf B was chosen to consume the 
milk of cow No. 1343. ‘This calf was dropped by a vigorous 
Jersey cow on February 20, 1897, and was ten days old when | 
the feeding period began. ‘The dam of the calf was tested with 
tuberculin about a year previous to the birth of this calf and 
was pronounced healthy. Calf B, when two weeks old (March 
3 and 4), was tested with tuberculin and gave no response. 
From March ist, 1897, up to the present time (April, 1898), 
calf B has been fed the entire milk supply of cow No. 1343. 
This calf has not been a vigorous eater, and at times has 
refused single feeds of milk. The calf has seemed healthy and 
has eaten hay readily. It is rather small for its age, but this 
may be due to the fact that the calf has always refused grain 
feeds. Besides the test with tuberculin at the beginning of the 
feeding period, calf B was also tested July 30-31, September 
27-28, and December 17-18, 1897, and April 11-12, 1808. 
ihe heifer calf (C) dropped by cow No. 1337, April 5th, 
1897, was allowed to suckle its dam till about six months’ old, 
and, except for a short time after birth, consumed all of [the 
milk given by the cow. About October 1st the calf was weaned, 
but was fed the milk of the dam till January, 1898. At this 
time the calf was gradually changed on to a mixed skim milk 
diet and was placed in the College herd, the intention being to 
rear the calf for breeding purposes. Calf C was tested with 
tuberculin July 30-31, September 27-28, and December 17-18, 
1897. ‘The calf has made a rapid growth from the start, and 
at the present writing (April, 1898), gives promise of develop- 
ing into a large and vigorous cow. It is our purpose to sub- 
ject this animal to the tuberculin test from time to time to get 
check of a possible later development of the disease. 
Calf D was dropped by a vigorous grade cow November 29, 
1897. ‘The cow was tested with tuberculin March 3-4, 1897, 
and gave no response to the test. The calf was first subjected 
to the tuberculin test December 17-18 and gave no response. 
Again, on April 11-12, 1898, this calf was tested, but gave no 
response. ‘he calf has had all the milk produced by cow No. 
