Beef Improvement Federation
activated patches became pregnant, as well as
65% of females with partially activated patches.
These two groups represented females fully
expressing estrus and those for which estrus was
just beginning, respectively. Forty-five percent
of females with nonactivated patches – those
not expressing estrus — became pregnant.
“What we saw was a big semen type by
estrous expression interaction,” stated Perry,
cautioning breeders that heat detection
is important to success with sexed semen.
“There definitely is a place for sexed semen
and it is very practical to use. But it should
be used in females showing estrus.” LT
This article is reprinted with permission from
www.BIFconference.com, Angus Media’s online coverage
site of the 2019 Beef Improvement Federation Research
Symposium and Annual Meeting.
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