Dairy-herd improvement through cooperative bull associations. Page: 2
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2 FARMERS' BULLETIN 1532
this condition, the first step should be to eliminate all bulls except
the purebreds; the next, to prove all the purebred bulls through the
records of their daughters and to eliminate all whose daughters are
unsatisfactory. The bull association is one of the means by which
FIG. 1.-First bulls purchased by one bull association
FIG. 2.-First tested daughters of bulls shown in Figure 1
these results may be brought about. Figure 1 shows the first bulls
purchased by one bull association, and Figure 2, the first tested
daughters of these bulls.
HOW BULL'ASSOCIATIONS HAVE GROWN IN NUMBER
The growth of a movement does not always prove its value; but
in the case of dairy-bull associations, the continued and almost constant
growth since the work began is at least some indication of what
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McDowell, J. C. (John Chambers), 1867-1943. Dairy-herd improvement through cooperative bull associations., book, June 1927; Washington D.C.. (digital.library.unt.edu/ark:/67531/metadc5908/m1/4/: accessed November 20, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.