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Research article2002Peer reviewedOpen access

Short communication: Effect of phantom parent grouping and properties of deregression for a low heritability trait

Mark, Thomas; Fikse, Freddy; Emanuelson, Ulf; Philipsson, Jan

Abstract

Properties of deregression for a low heritability trait (clinical mastitis in Sweden with heritability of 0.02) and effects of using different definitions of genetic groups in within-country deregression compared with the across-country analysis were studied. The deregression procedure was satisfactory, and the effects of different phantom parent grouping in within-country deregression compared with across-country analysis were negligible here.

Keywords

deregression; genetic group; multiple-trait across-country evaluation; low heritability

Published in

Journal of Dairy Science
2002, Volume: 85, number: 9, pages: 2393-2395
Publisher: AMER DAIRY SCIENCE ASSOC