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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.

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Dr. Don Niles, partner on Dairy Dreams in Casco, Wisconsin, said there is no single miracle for a good breeding program and transition of heifers into the dairy herd; rather, there are several very important factors.

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Can you believe up to 60 percent of embryos don’t “make it” in the lactating dairy cow? That’s right. In addition to poor estrus expression and low conception rate, embryonic loss is another significant contributor to poor reproductive efficiency, with combined pre- and post-fertilization losses exceeding 70 percent (Figure 1).

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Would you invest in something that causes metritis, ketosis or mastitis? You probably already have. The unit of semen you purchased last week and thawed this morning could actually cost hundreds of dollars in transition cow treatments about three years down the road.

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At Jerseyland Dairy LLC, dairy manager Tanner Schmidt knows a solid reproduction program depends on more than just shots and semen; it comes down to having the right people in place, doing the right things at the right time.

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The American Dairy Science Association (ADSA) and the American Society of Animal Science (ASAS) organized their 2016 joint annual meeting this past July in Salt Lake City, Utah.

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Profitability in dairy operations is directly related to reproductive performance. The results of the preferred reproductive program in the dairy farm will be used to measure essential parameters of success, for instance, decreasing replacements due to reproductive failure and increasing the number of heifers for replacement due to reproductive success.

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