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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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One of the things I like about my job as sales and marketing manager for Simplot Animal Sciences is the variety of activities I can be involved in. My office is located on a 400-acre Idaho ranch stocked with 350 cows we use as recipients for our in vitro fertilization (IVF) research and other assisted reproductive technologies.

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Pregnancy rate is a standard measure of the success of a dairy reproductive program. It is the percentage of females eligible to become pregnant in a 21-day period that actually become pregnant. The good news is that average pregnancy rate (PR) has been increasing again over the last decade.

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Increase profit. Reduce management inputs. Design a cow that eats less, doesn’t know what a hospital pen is and rarely gets the “open” diagnosis at pregnancy check. This can be accomplished in a single generation with a $100 increase or more in profit per cow per year.

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Pick up the latest sire directory from any of the major bull studs, and you’ll see that the “bull book” contains more information than ever. More indexes, more traits, more numbers; it’s quite a job to sift through it.

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Pawnee Farm Arlinda Chief, or Chief for short, is responsible for 14 percent of the current Holstein genome in the U.S.

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With more herds achieving outstanding milk yields, more questions are raised about how these high yields impact reproductive performance. If your herd is achieving a high milk yield average per cow, do you need to change the way you manage your cows reproductively?

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