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Article

Genetic associations betweeen age at first calving with reproductive efficiency and neonatal performance in Nellore cattle.

Theriogenology - 15 Oct 2026

Almeida Caroline Assis, Carvalho Rachel Santos Bueno, de Mattos Elisângela Chicaroni, Bis Flávia Cristina, Baldi Fernando, Ferraz José Bento Sterman

Abstract excerpt

Age at first calving (AFC) is an important indicator of reproductive efficiency in beef cattle. Studies that simultaneously estimate genetic parameters for reproductive traits and neonatal performance in Zebu populations are still scarce. This study aimed to estimate variance components and genetic parameters for AFC, calving interval (CI), longevity (LONG), productive life (PL), neonatal vigor (VIG), and...

Topics

Animals
Cattle
Reproduction
Female
Animals, Newborn
Pregnancy
Genotype

Source

Methodology Data sources Editorial policy Privacy About Contact Helena Bioinformatics

Identifiers

PMID: 42323921
DOI: 10.1016/j.theriogenology.2026.118047

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PubMed metadata and Literature Corpus relationships. Corpus snapshot updated 31 Aug 2026.

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