380 _ QUEENSLAND AGRICUITURAL JOURNAL. [1 Noy., 1898. 
three days after the test. (See Appendix D.) It will be noticed that there is 
scarcely any appreciable diminution in the quantities of milk of any one of the 
animals. : 
Tt would have been specially interesting to have estimated the percentage 
of butter fats from each cow, but unfortunately that much-needed appliance, 
the Babcock milk-tester, does not find a position among the dairying utensils 
at St. Helena. It is to be hoped, however, that it will not be long absent, for 
it is a well-established fact that the yield of milk is in no way proportionate to 
the yield of butter fats. 
COLOUR IN RELATION TO DISEASE. 
There is a widespread opinion among stockowners that disease, especially 
tuberculosis, exists to a greater extent among white or light-coloured animals 
than among the dark-roan, red, or black cattle. Mr. R. Thornton, of Tower 
Hill, who has kept very careful records for a number of years, states that from 
his somewhat extended experience he finds white or light-coloured cattle are 
more susceptible to disease than other cattle of dark colour. The results of 
the tuberculin test among the St. Helena cattle somewhat confirm the correct- 
ness of these statements, for five of the seven cows which were found tuber- 
* culous were obviously light-coloured animals. 
NOTES ON THE BULLS. 
It is particularly interesting to know that none of the seven bulls reacted 
to the test, also that previously no bulls have at any time shown symptoms of 
tuberculosis. The only reasonable explanation I can give as to the absence of 
this disease among the bulls is—(1) all calves are taken away from their 
mothers immediately after birth, and kept in yards and pens specially set aside 
for the purpose; (2) the bulls are never allowed to be fed in the same stalls as 
the cows; and (3) all cows ure taken to the bull, and after being served are 
immediately removed, thereby reducing the risk of infection to a minimum. 
DOUBTFUL REACTIONS TO THE TEST. 
The two-year-old heifer Hessie and the yearling bull Young Randwick 
each gave a fairly high temperature the day after injecting the tuberculin. In 
Hessie’s case it was ascertained that she had received an injury to the right 
shoulder from the horn of another animal on the night previous, causing her to 
remain feverish all the following day; while Young Randwick had received a 
superabundance of fresh green feed, which would be an almost certain factor in 
raising an animal’s temperature. However, until both of these animals are 
tested again under more favourable circumstances they will be considered ag 
doubtful cases. 
Several of the very young calves after injection gave fluctuating high 
temperatures, but this was caused more or less by excitement. 
LIST OF HEALTHY COWS AND HEIFERS FROM DISEASED 
(TUBERCULAR) MOTHERS. 
{ 
Healthy. Age. Tubercular. Age, 
Ladybird 3 Out of Snowdrop... 6 
Jenny 1 ip on a 6 
Fanny 2 », Diana 7 
Grace... i: 6 5, Annie 9 
Dinah IV. ... 1 », Dinah ap 9 
Louisa Ass 1 » Maggie IT.... 3 ch ai 13 
Goldspray ... 5 », Cassandria... a; 35 ..| Dead 
