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Article

The effects of age, weight, and sire on pregnancy rate in cattle.

Journal of animal science - 1 Apr 2015

Shorten P R, Morris C A, Cullen N G

Abstract excerpt

The goal was to estimate the heritabilities and genetic variances for pregnancy rate (PR) and calving date (CD) in Angus cattle along with the effect of weight, age, and sire on PR and CD. The data consisted of 4,999 records on PR and CD. Statistical models included year as a fixed effect; premating/postmating weight and age as covariates; and sire of embryo, maternal grandsire (MGS), and permanent maternal...

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Identifiers

PMID: 26020175
DOI: 10.2527/jas.2014-8490

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PubMed metadata and Literature Corpus relationships. Corpus snapshot updated 7 Sept 2026. Manifest publication-graph-cohort-2026-09-08.1.

Source receipt: pubmed, retrieved 7 Sept 2026.

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