Evening bulletin. [volume] (Honolulu [Oahu, Hawaii]) 1895-1912, 1898-07-01
STOCK RANGE AND DAIRY.
Continued from Second Page.

ton of dairy cows seems more
urgent than ever before.
Authorities are, however, not
fully agreed as to whether the milk
from tuberculous cows in which the
udder is apparently not invaded by
the disease should be considered
dangerous or not. Some are in
clined to believe that the milk Sc
creted by healthy udders is never
infectious even when the lungs or
other organs are affected that, in
other words, the tubercle bacilli are
rarely, if ever, separated from the
Lessons which they produce, that the
udder itself must be diseased before
tubercle bacilli can appear in the
milk. Experiments made with the
milk of tuberculous COWS in which
there were no indications of udder
disease do not bear out this theory,
as the statistics to be given below
will show. Tubercle bacilli have
been found in the milk of such cows.
Some authorities, among them No
card, still believe that the udder is
diseased when the milk is infected,
but that the disease escapes observ-
alton. However this may be, the
fact that the udder may be dis
eaSed and the disease not recognize
able simply casts suspicion upon all
milk from tuberculous animals.
That this suspicion is not without
foundation some recent inveStiga-
tons may be here briefly summar-
lied as evidence.
Under the auspices of the MaSSa-
chuSettS Society for the Promotion
of Agriculture, DR.. c. H. Ernst,
assisted by DR.. A. Peters, made
some experiments to test the char
acter Of the milk from tuberculouS
COWS having no recognizable udder
disease. The milk was examined
microScopically and the tubercle
bacilli demonstrated in the milk of
ten out of thirty-siX COWS, or FIT
per cent. Guina-pigs also were in
oculated with the milk from four
teen cows and from the milk of six
of these or 42.8 per cent. the inocu-
lation was successful.
HirSchberger, under Bolinger'S
direction made number of expert
mentS to test the infectious proper
ties of milk from tuberculous cattle.
Of twenty cases the milk of eleven
| (55 per cent produced tuberculosis,
when injected into the peritoneum
of guina-pigS in quantities of to ?
cubic centimeterS. Of five cows
highly tuberculouS the milk of four
was infectious of six cows moder-
ately tuberculouS the milk of four
was infectious; of nine cows slightly
tuberculouS the disease being re-
stricted to the lungs, three gave in
fected milk, Only in one specimen
, OF milk were the tubercle bacill
discovered udder the microscope.
, The following experiments indi-
cate much smaller percentage of
: infection
Nocard inoculated guina-pigs with
milk from eleven tubereulouS cows.
} OF these only one had the udder
diseased. The guiEa-pig inocuated
from the milk of this animal died of
generalized tuberculosis the rest
remained well.
Bang injected into the abdominal
cavity of rabbits from I to cubic
centimeterS of milk from twenty-one
cases of advanced tuberculosis in
which the udder appeared normal,
Positive results were obtained from
but two of these cases.
Concerning the infection of swine
with milk from tuberculouS cattle
the following interesting statement
is worth quoting:
"The owner of a valuable herd o.
cows, finding that large proper
ton of them were tuberculouS, 81
large proportion indeed as strongly
to suggest infection by association
in the sheds, withdrew his mill
from the market and used it, unfor
tunately without boiling, for fatten
ing his pigs, of which he has larg'
number and on which he pride
himself not less than on his cows
= The result has been that the pig
have, almost without exception
been affected with the disease to al
extent that has necesSitated tn
slaughter of the whole stock! An
other point of practical interest i
, that he has not been able to diScove