GENETIC, ENVIRONMENTAL AND PHENOTYPIC CORRELATIONS BETWEEN GROWTH TRAITS OF HEREFORD AND ABERDEEN ANGUS CALVES | Zendy

B. W. Kennedy | Zendy; Charles Henderson | Zendy

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GENETIC, ENVIRONMENTAL AND PHENOTYPIC CORRELATIONS BETWEEN GROWTH TRAITS OF HEREFORD AND ABERDEEN ANGUS CALVES

Author(s) -

B. W. Kennedy,

Charles Henderson

Publication year - 1975

Publication title -

canadian journal of animal science

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.377

H-Index - 64

eISSN - 1918-1825

pISSN - 0008-3984

DOI - 10.4141/cjas75-062

Subject(s) - weaning , biology , zoology , beef cattle , genetic correlation , carcass weight , body weight , veterinary medicine , genetic variation , genetics , endocrinology , gene , medicine

Canadian Record of Performance for Beef Cattle data were used to estimate genetic, environmental and phenotypic correlations between pairs of four calf growth traits: weaning weight, preweaning average daily gain (ADG), yearling weight and postweaning ADG. A total of 61,688 Hereford and 22,333 Aberdeen Angus records were studied. Average genetic, environmental and phenotypic correlation estimates, in that order, for the following growth trait combinations were:.997,.974 and.979 for weaning weight and preweaning ADG;.801,.709 and.726 for weaning weight and yearling weight;.784,.692 and.706 for preweaning ADG and yearling weight;.516, −.143 and.104 for weaning weight and postweaning ADG;.494, −.142 and.094 for preweaning ADG and postweaning ADG; and.875,.595 and.741 for yearling weight and postweaning ADG.

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