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have around 25% that we 30 days later we ultrasound. The Midwest Cattleman · August 19, 2021 · P19
wouldn’t keep based on our Any of the open females we
criteria. For us, we want to find at the 90-day mark go to that a female
maintain the maternal traits, the feed yard along with the was bred in
which will come first, but we initial 20% we pulled off and the second
also want to put pressure on didn’t breed. Those cattle all half of the
carcass traits and end prod- go to the feed yard togeth- 60-day expo-
uct merit. That’s where we er. With ultrasound, we find sure, she will
have been heading with bull out which females conceived be sold as a
selection, and I would take in the first 30 days, which is bred heifer.
the same approach with our all of the AI breds, plus we’ll While the cur-
heifers.” have a small percentage that rent process
This dedication to data were bred with the first heat doesn’t rely
has laid a foundation that of natural service.” continued on
currently allows Blew to use If the ultrasound shows page 25
a more general selection pro-
cess for the purpose of ex-
panding. Selecting heifers
currently includes removing
the bottom end, and then
placing extreme emphasis on
fertility. Blew says, “We will
do a pelvic measure and get
a reproductive tract score,
and when we do that — in-
cluding our freemartins and
everything else — there are
around 20% that fall out.
Those cattle go, and then we
literally just set the rest up
for AI.” He continues, “We pull
heats, and time AI anything
that doesn’t come in, and we
put cleanup bulls in for 60
days. We pull the bulls, and
Callaway
Livestock
Center, Inc.
On I-70, 4 miles east of
Kingdom City, MO on outer road
573-642-7486
Feeder Sale
Monday
12:30 p.m.
1st Thursday Night
of Each Month
6:00 p.m.
Special Cow Sale
Jack Harrison
573-386-2138
John P. Harrison
573-386-5150