THE DAM'S INFLUENCE
IS IT NEGLECTED ?
In the Journal of Dairy Science Mr. Lyon Cop eland, in dealing with advanced register American Jerseys, declares that there is an undoubted correlation between the production of a cow and the production of the daughters, and that therefore the selection of females from high record dams . should result in a herd that should produce in excess of the breed average. He deprecates the selection of a bull purely on the record of the dam and declares that the record of the dam is almost twice as reliable a measure of the production of her own daughters as it is of her son's daughters. i Mr Copeland stresses the point that too much information cannot possibly ' be obtained by anybody selecting an untried young bull. Investigation ; should he made into the average of the dam's record, the dam's sisters' recoi*ds and the dam's daughters' records. If the dam has no record, the average of the records of her materj nal sisters and of her daughters gives ' almost equally dependable results.
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Rotorua Morning Post, Volume 2, Issue 443, 30 January 1933, Page 7
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176THE DAM'S INFLUENCE Rotorua Morning Post, Volume 2, Issue 443, 30 January 1933, Page 7
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