HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS		QUICK SEARCH:   [advanced] Author: Keyword(s): Year:  Vol:  Page:

This Article Full Text (PDF) Alert me when this article is cited Alert me if a correction is posted Services Similar articles in this journal Alert me to new issues of the journal Download to citation manager Citing Articles Citing Articles via Google Scholar Google Scholar Articles by Hutchens, L. K. Articles by Johnson, R. K. Search for Related Content PubMed Articles by Hutchens, L. K. Articles by Johnson, R. K.

Genetic and Phenotypic Relationships between Pubertal and Growth Characteristics of Gilts¹

Oklahoma State University, Stillwater 74078

Abstract

Data on 737 crossbred and purebred gilts were used to obtain heritability estimates for age at puberty (AGEPUB) and weight at puberty (WTPUB) and their genetic and phenotypic correlations with birth weight (BW), weaning weight (WW), postweaning daily gain (ADG), adjusted age at 90.7 kg (AGE) and adjusted backfat at 90.7 kg (BF). The heritability estimates for AGEPUB were low to moderate (.19 and .40, based upon paternal and maternal half-sib estimates, respectively.) The genetic (r_g) and phenotypic (r_p) correlations between AGEPUB and BW (r_g = –.07; r_p = –.09), WW (r_g = –.25; r_p = –.19), ADG (r_g = –.38; r_p = –.34) and AGE (r_g = .56; r_p = .38) were favorable. The genetic and phenotypic correlations between AGEPUB and BF were .27 and .01, respectively.

¹ Journal Article 3829 of the Agr. Exp. Sta., Oklahoma State Univ., Stillwater 74078.

² Anim. Sci. Dept.

³ Present address: Anim. Sci. Dept., Univ. of Nebraska, Lincoln 68583.