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A.I. & Breeding

From estrus and heat detection to genomics and sexed semen, discover the latest information to improve reproductive performance.

LATEST

It has been 20 years since the Ovsynch program was released to the industry. Since then, a lot has been learned about improving fertility, and 21-day pregnancy rates have increased from 14 percent to more than 30 percent.

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Correct time of insemination is important to ensure conception but also to make sure the embryo has the best conditions to survive long term. An old oocyte has higher probabilities of early embryonic death, and if we breed too early, the sperm may die before the oocyte is ready to be fertilized.

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Reproductive efficiency on a dairy is an important factor in overall profitability, and a sizable amount of labor is involved in the synchronization or estrus detection and insemination of cows and heifers. That is why an open cow at pregnancy check is so frustrating.

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Proper calf selection is crucial for your 4-H dairy career. Creating your desired calf through strategic breeding is an approach to consider when choosing your show heifer.

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At the 2016 Pennsylvania Dairy Summit, Jonathan Lamb of Oakfield Corners Dairy and Dr. Chad Dechow from Penn State University teamed up to discuss the impact of genomics on commercial dairy herds.

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These protocol sheets were assembled by members of the Dairy Cattle Reproduction Council (DCRC).

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