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Article

Genetic associations between age at first calving and heifer body weight and scrotal circumference in Nelore cattle.

Journal of animal breeding and genetics = Zeitschrift fur Tierzuchtung und Zuchtungsbiologie - 1 Oct 2009

Grossi D A, Venturini G C, Paz C C P, Bezerra L A F, Lôbo R B, Oliveira J A, Munari D P

Abstract excerpt

Summary Age at first calving (AFC) measures the entry of heifers into the beef cattle production system. This trait can be used as a selection criterion for earlier reproductive performance. Using data from Nelore cattle participating in the 'Program for Genetic Improvement of the Nelore Breed' (PMGRN-Nelore Brazil), bi-trait analyses were performed using the restricted maximum likelihood method, based on an AFC...

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PMID: 19765165
DOI: 10.1111/j.1439-0388.2008.00791.x

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

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