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Article

Comparison between linear and proportional hazard models for the analysis of age at first lambing in the Ripollesa breed.

Animal : an international journal of animal bioscience - 1 Mar 2016

Casellas J

Abstract excerpt

Age at first lambing (AFL) plays a key role on the reproductive performance of sheep flocks, although there are no genetic selection programs accounting for this trait in the sheep industry. This could be due to the non-Gaussian distribution pattern of AFL data, which must be properly accounted for by the analytical model. In this manuscript, two different parameterizations were implemented to analyze AFL in the...

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PMID: 26549545
DOI: 10.1017/S1751731115002220

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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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