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Article

Seasonality of fertility measured by physical activity traits in Holstein cows.

Journal of dairy science - 1 Apr 2016

Ismael Ahmed, Strandberg Erling, Berglund Britt, Fogh Anders, Løvendahl Peter

Abstract excerpt

Seasonality of female fertility traits, including the interval from calving to first high activity (CFHA), duration of high activity episode (DHA), and strength of high activity episode (SHA) of first estrus, were studied. The physical activity traits were derived from electronic activity tags for 20,794 Holstein cows in 135 commercial Holstein herds in Denmark. Data were categorized in 3 ways: (1) into 4 seasons...

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Source

Identifiers

PMID: 26805994
DOI: 10.3168/jds.2015-10067

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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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