Selection for cow lifetime pregnancy rate using bull and heifer growth and reproductive traits in composite cattle

Genetic correlations of lifetime pregnancy rate with bull and heifer growth and reproductive traits in a beef composite population were estimated. Yearling scrotal circumference had an unfavorable genetic correlation (r g  = −0.25) while yearling tonometer score was favorably related (r g  = 0.22) t...

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Veröffentlicht in:	Canadian journal of animal science 2000-09, Vol.80 (3), p.507-510
Hauptverfasser:	Mwansa, P.B, Kemp, R.A, Crews, D.H. Jr, Kastelic, J.P, Bailey, D.R.C, Coulter, G.H
Format:	Artikel
Sprache:	eng
Schlagworte:	body weight bulls cows dimensions genetic correlation growth heifers lifetime performance pregnancy rate puberty reproductive traits scrotum selection
Online-Zugang:	Volltext
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