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
Dairymen, Write for Your Paper.
WINTER FEED FOR COWS.
The increasing demand for milk in our cities and villages, and for
gilt-edged butter during the winter season, is leading some of our most
intelligent farmers to study more carefully the problem of winter
dairying. "It costs more to make butter in winter than in summer," says
the American Agriculturalist, "but if a select class of customers in
cities or elsewhere, are willing to pay for the increased cost of
producing it fresh in zero weather, then there is no good reason why
they should not be gratified. Its feasibility is already established on
a small scale, and there seems to be no discernible limit to the demand
for a first-class article during the six months when the pastures are
barren.
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