Yerington times. [volume] (Yerington, Nev.) 1907-1932, 1914-01-17

ly. At least two consecutive mllklngs
should be used for this monthly test
and four are better. By this means
a man is able to select his best cows.
He can then, if he chooses, reserve
the heifers from them only. he is
then not only securing heifers sired
by wellbred dairy sire, but they have
the additional advantage of being from
dams that have proven themselves
worthy of being retained as dairy
workers.
If the dairyman has started with a
small herd, has tested his cows the
first year, and consigned to the butch
er those that do not pay at least
small profit, desiring to increase the
size of his herd, it will be wise policy
to keep all the heifers dropped by the
COWS retained in the herd. If sired by
hrstclass bull every heifer dropped
by a COW showing proht should be
worth trying out The dairy quality
of the right kind of a sire may in
crease the production 50 pounds or
more of butterfat per year over the
amount produced by the heifer's dam.
If the dairyman has a herd as large
as he cares to maintain he can raise
the herd standard more rapidly by re-
tanning for use in the herd only the
heifers from the cows that have
proved his greatest workers. AS
these heifers come into production
and show evidence of material incease
over their dams, the dairyman should
dispose of his poorer cows, putting in
their places the heifers from the high
producers.
This is the key to the whole system
of breeding up herd to high stand
ard of dairy work. Selecting good
pure bred dairy sires from families
that are proved performers; system
atically testing the cows in the herd
for yearly production; wedding out
the poorer ones; retaining the best
heifers from the better cows; trying
them out; putting the good heifers
in the places of the poorer cows
among their dams, and continuing
this systematic work year after year
If you have secured a bull that has
proved exceptionally good, in choos-
ing another bull to use on his heifers
select one of the same family slightly
related, being careful always to get
a youngster that is a goot individual
from proved dam and grand dam
Or, if you have valuable proved
sire, select another good one not re-
lated for use on the proved sire's heif-
ers: take the heifers from this mating
particularly the strong vigorous ones,
and breed them back to their grand
sire By these methods the blood of
a bull that has proven himself a pre-
potent sire of valuable dairy cows is
intensified in the herd for a future
breeding foundation. But be sure
you have such a sire before pursuing
this method If you have kept up the
work of continuous daily weighing of
milk and regular monthly testing, by
the time your bulls granddaughter
are ready for production you will
probably know whether you want to
intensity his blood in your herd or
not, and if so by this method it will
be possible to get the full benefit of
a bull that is really valuable animal
The Missouri Agricultural College
has carried on careful yearly testing
in their herd of registered Jerseys for
a number of years, and the compari-
son of their bred sires, made by Prof.
E.ckles is of considerable interest. He
says "Of the five sires used in the
history of this pure bred herd, two
increased the production, two lessen
ed it, and by the use of the fifth the
herd remained at standstill. By the
use of one bull ITO pounds of butterfat
worth at least $780, is added to the av-
erage animal production of his daugh-
tiers over their dams" If in his life
time he sired one hundred daughters,
you can imagine what the value of such
a. bull would be- Prof. Eckles says
further in regard to this bull that he
was of their own breeding and his
dam was the best COW in the herd at
that time. Being a home product they
did not value him very highly and he
was sold without any record being
kept of the name of his purchaser and
was never officially transferred. When
his daughters by their records proved
his worth the agricultural college
would have given long price to get
him back
By means of membership in a
COW testing association, the dairyman
is sure of securing systematic regu-
larity in testing, because the tester