Dr. Detmers, V.S., stationed at the Union Stock Yards at Chicago, by the
Department of Agriculture for the purpose of inspecting swine, alleges
that during the last four months he has examined at one packing-house
not less than four thousand hogs and has seen at least ten times that
number, but has not seen the slightest trace of disease, as he certainly
should if any had existed. During the last two years but very little
swine plague has prevailed anywhere, and, as far as he knows, no
diseased hogs have been shipped; nearly if not all the small rendering
tanks having been closed.

* * * * *

M. Pasteur, the eminent French scientist, says epizootic hog-cholera,
even of the most virulent type, can be prevented by inocculation with
the attenuated virulent virus. He also says it is proven that the period
of immunity is more than a year; that, consequently, this is long enough
for the requirements of hog-raising, since the period of fattening does
not generally exceed a year. Yet, in spite of these happy results, I
repeat that the question of the use of vaccination for different breeds
needs new investigation, so that the vaccination of swine may be made
general.




THE DAIRY

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