Dairy Herd Management Articles:
A hidden opportunity: Heifer reproduction
Heifer reproduction is not an area looked at very often, but some real opportunities exist to make improvements and cut cost.
Increase fertility during heat stress
The use of in vitro produced embryos with sex-sorted semen could be a viable option for producers to adopt to maintain fertility during the summer months.
Semen handling key to good reproduction
Use these tips to handle semen properly and get heifers bred.
Tips for reproductive success
A heifer grower from western Kansas offers advice on different heat detection tools and tips for getting heifers bred.
Heifer nutrition and growth rates
One calf grower shares his advice.
Take heifer reproduction to the next level
Creating benchmarks and goals can help ensure that replacement heifers join the milking string in a timely fashion. However, measuring, benchmarking and improving reproduction is not as common of a goal for heifers as it is for the milking herd.
Is she pregnant or isn’t she?
Here’s an update on the tools to detect bovine pregnancy status.
Six tips to getting heifers bred Heifer raiser Darin Mann of M&M Feedlot in Parma, Idaho, is focused on getting animals bred and back to the dairy producer in a timely manner. Read these six tips for how Mann effectively gets heifers bred.
Improve conception; keep those heifers cool
Researchers in Iran recently studied the impact of short-term cooling strategies on pregnancy rate in Holstein heifers. Study results suggest that short-term cooling applied around the time of insemination could be useful in improving the success of heifer reproduction during heat stress.
Set heifer goals
Dave Fischer, University of Illinois extension dairy educator, outlined three goals of a good replacement-heifer program during a heifer-management Webinar hosted by the University of Illinois last month.
Double your accuracy
Even if you’re not a data junkie, the latest changes in genetic evaluations are enough to blow your socks off. And if you are a data enthusiast, well, you’ve hit the jackpot with genomic sire evaluations.
Sex-sorted semen is known to compromise conception rates, largely due to reduced sperm numbers per straw. However, virgin heifers showing strong heats are still good candidates for sex-sorted semen.
Performance of sexed semen in heifers
Heifers are the most fertile animals on the dairy, and thus often are recommended as the highest-priority recipients of sex-sorted semen.