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Genetic parameters and trends for calving interval in the first three lactations of Iranian Holsteins.

Tropical animal health and production - 1 Aug 2011

Ghavi Hossein-Zadeh Navid

Abstract excerpt

Calving records from the Animal Breeding Center of Iran collected from January 1987 to December 2007 and comprising 292,875 calving events of Holsteins from 1,413 dairy herds were analyzed using univariate and bivariate linear animal models to estimate heritabilities and genetic correlations for calving intervals in the first three lactations of Holstein cows. Genetic trends were obtained by regressing yearly...

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PMID: 21360067
DOI: 10.1007/s11250-011-9809-1

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PubMed metadata and Literature Corpus relationships. Corpus snapshot updated 7 Sept 2026. Manifest publication-graph-cohort-2026-09-07.1.

Source receipt: pubmed, retrieved 7 Sept 2026.

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