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Derivation of a breeding value for persistency in German dairy cattle focusing on performance in extended lactations.

Journal of dairy science - 1 Apr 2026

Polman L, Rensing S, Liu Z, Tholen E, Heise J

Abstract excerpt

Persistency in production traits provides an opportunity to extend the lactation period. Enhanced lactation periods significantly over 305 d have potential benefits for fertility, animal health, farm management, and economic outcomes. However, the random regression test-day model, which is currently used in Germany, only covers d 5 to 305 of lactation. This study focuses on increasing the genetic capacity for...

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PMID: 41651356
DOI: 10.3168/jds.2025-26413

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PubMed metadata and Literature Corpus relationships. Corpus snapshot updated 7 Sept 2026.

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