Evidence map›Paper›PMID 42840735›Full record

ArticleArchives animal breeding2026

Genome-wide association study of gestation length in German Holsteins.

Maximilian Zölch, Valentin P Haas, Christin Schmidtmann, Hatem Alkhoder, Jens Tetens, Jörn Bennewitz

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In one paragraph

Article in Archives animal breeding, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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0citing papers in PubMed
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1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

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3 · Its place in the literature

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0 citing papers in PubMed.

No citing paper in PubMed yet.

4 · The record

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5 · Who and what money

Authors and funding

6 authors.

Maximilian ZölchInstitute of Animal Science, University of Hohenheim, 70599 Stuttgart, Germany.ORCID https://orcid.org/0009-0007-0721-2312
Valentin P HaasInstitute of Animal Science, University of Hohenheim, 70599 Stuttgart, Germany.ORCID https://orcid.org/0000-0002-9651-1205
Christin SchmidtmannIT Solutions for Animal Production (vit), 27283 Verden, Germany.
Hatem AlkhoderIT Solutions for Animal Production (vit), 27283 Verden, Germany.
Jens TetensDepartment of Animal Sciences, University of Goettingen, 37077, Göttingen, Germany.
Jörn BennewitzInstitute of Animal Science, University of Hohenheim, 70599 Stuttgart, Germany.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Gestation length (GL) is important in seasonal calving systems and in the calving trait complex, because it affects traits such as stillbirth (SB) and calving ease. Utilizing imputed high-density genotypes from 34 497 German Holstein cows, this study aimed to identify genomic regions associated with GL. For this, a genome-wide association study (GWAS) was conducted, and the results were interpreted by searching for previously reported adjacent quantitative trait loci (QTLs). Four GL traits were analyzed: the direct calf effects on GL in first (GL_d1) and second (GL_d2) parity, along with the maternal effects on GL in first (GL_m1) and second parity (GL_m2). GWAS of direct effects on GL resulted in significant variants on BTA14, 18, and 19 for GL_d1, and on BTA18 and BTA19 for GL_d2. Regarding the maternal effect, only one variant on BTA19 was significant in the second parity. Adjacent to significant variants were known QTLs for several reproduction traits including SB. Overall, the study provides insights into the complex genetic architecture of GL in German Holstein cattle. The identified genomic regions are supported by previous studies and thereby strengthen the basis for future research.

Identifiers

PMID42840735
PMCPMC13640962

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