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The U.S. genetic evaluation system

The U.S. genetic evaluation system. U.S. dairy population and milk yield. Data sources: http :// www.nass.usda.gov/Quick_Stats/index.php http://www.census.gov/prod/www/abs/decennial /. U.S. DHI dairy statistics (2011). 9.1 million U.S. cows ~75% bred AI

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The U.S. genetic evaluation system

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  1. The U.S. genetic evaluation system

  2. U.S. dairy population and milk yield Data sources:http://www.nass.usda.gov/Quick_Stats/index.phphttp://www.census.gov/prod/www/abs/decennial/

  3. U.S. DHI dairy statistics (2011) • 9.1 million U.S. cows • ~75% bred AI • 47% milk recorded through Dairy Herd Information (DHI) • 4.4 million cows • 86% Holstein • 8% crossbred • 5% Jersey • <1% Ayrshire, Brown Swiss, Guernsey, Milking Shorthorn, Red & White • 20,000 herds • 220 cows/herd • 10,300 kg/cow Data sources:http://www.nass.usda.gov/Quick_Stats/index.php National Association of Animal Breeders, 573-445-4406 http://aipl.arsusda.gov/publish/dhi/part.html http://aipl.arsusda.gov/publish/dhi/herd.html

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