Notes
From http://www.holsteinusa.com/holstein_breed/breedhistory.html:
"Holstein cattle are most quickly recognized by their distinctive color markings and outstanding milk production."
Holstein Cow.
Photograph from Wikipedia.
" Holsteins are large, stylish animals with color patterns of black and white or red and white. A healthy Holstein calf weighs 90 pounds or more at birth. A mature Holstein cow weighs about 1,500 pounds and stands 58 inches tall at the shoulder. * * * The 2009 average actual production for all U.S. Holstein herds that were enrolled in production-testing programs and eligible for genetic evaluations was 23,151 pounds of milk, 842 pounds of butterfat and 711 pounds of protein per year.
"Top producing Holsteins milked three times a day have been known to produce over 72,000 pounds of milk in 365 days."
" Holstein dairy cattle dominate [the US] milk production industry."