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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

In the game of dairy herd reproduction, it’s the simple things that separate the top-performing herds from the rest. If you’re looking to up your game in terms of reproductive performance, get back to the basics with these five fundamental tips.

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For years, 50 to 60 days has been branded as the ideal length of time between calving and first service, but a recent study is looking at how giving dairy cows closer to 90 days before breeding could impact reproductive performance, and the results may surprise you.

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Investigating the underlying factors of dairy reproductive performance is a lot like peeling an onion – the more you look, the more layers you find. Of course, nutrition is one such layer that has considerable effects on reproduction.

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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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Researchers have developed many management protocols and technologies that can be used to increase efficiencies of production on the dairy. One of these tools is advanced reproductive technologies.

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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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