Word: butterfat
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...cows be brought to them. Nevertheless for many months Argentine cattlemen have had their eyes on two fine Holstein-Friesian bulls at the U. S. Department of Agriculture station in Beltsville, Md.: Chief Piebe Ormsby Burke and Double Gerber Colantha Hero, both renowned for transmitting high milk and butterfat productivity to their female offspring. Last July an attache of the Argentine Embassy in Washington approached Roy Ralph Graves of the Beltsville station, proposed that sperm from the two bulls be bottled and shipped to Argentina...
There are two ways of measuring a cow's production: by actual amount of milk given or by the milk's butterfat content. World records for total milk production and total butterfat production have always been held by different cows. Last week a purebred Holstein on Carnation Co.'s experimental dairy farm near Seattle finished a year's test which set new world records in both classifications. The cow: Carnation Ormsby Butter King, known to her attendant as Daisy. In 365 days Daisy produced 38,606.6 Ib. of milk and 1,420 Ib. of butterfat. That...
...Prime dairy statistics: 1 qt. of milk weighs 2.15 Ib.; 1 Ib. of butterfat equals 1.25 Ib. of butter...
...their elite sisters. A survey in South Africa showed that when a dozen champion bulls were used for sires, they had daughters whose milk capacity averaged 1,000 lb. lower than the dams. Thus Mr. Prentice brings his argument down to a clear-cut issue: high milk production and butterfat percentage v. show-ring magnificence...
...could find what they wanted. They found first, as others had found, that a cow inherits productive capacity from both dam and sire. They found further that, as regards quantity of milk, a cow gets seven-tenths of her inheritance from whichever parent has the higher inheritance; as regards butterfat percentage, four-tenths of her inheritance from whichever parent is higher. The dam's inheritance was obvious from her output. The problem remained how to evaluate the bull's transmitting capacity. The Prentice group chose the method of systematically comparing the yield of bulls' daughters with...