Translations:Adventist Youth Honors Answer Book/Nature/Livestock/10/en

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6. Know the milk-producing qualities of the Jersey, Guernsey, and Holstein breeds.

Jersey
Brown Bessie, the famous champion butter cow of the Chicago World's Fair dairy test, averaged over 40 pounds (18 kg) of milk a day for five months, and made 3 pounds (1.3 kg) of butter a day several times.