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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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The onset of estrus in dairy cattle is accompanied by changes in physiological activity, rumination and feeding behavior. These alterations can be monitored via direct observation or through the use of automatic sensors to identify deviations associated with estrus, subclinical illness or lameness.

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Nearly 300 dairy cattle reproduction enthusiasts gathered Nov. 10-11, 2016, in Columbus, Ohio, for the 11th Dairy Cattle Reproduction Council (DCRC) annual meeting.

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Over the past five years, genomics has received a lot of publicity as a tool to help manage your herd’s genetics. Whether it is determining an overall breeding strategy for your herd or trying to find that high-end outlier that brings tens of thousands of dollars at a cattle sale, there is no doubt genomics has revolutionized the way producers look at dairy genetics.

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Reproduction is a fascinating story.

The story begins with the supply of oocytes that are present from before birth on both ovaries.

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In a dairy herd, efficiency and profitability can be achieved or lost depending on the successful balance between production and reproduction. Better reproductive performance benefits the herd directly by decreasing the days open and the average days in milk (DIM), placing cows closer to peak than to late lactation in their curve, and consequently producing more milk per cow per day.

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What is the difference between ‘genetics,’ ‘genomics’ and ‘genome’?

Genetics is a branch of biology focused on heredity and variation of organisms. In simpler terms, genetics focuses on the characteristics or traits that are passed from parents to children, from one generation to another.

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