Work

Inbreeding affects the survival of Danish Jersey and Holstein dairy cows

Year: 2025

Type: article

Abstract: based on ROH lengths revealed that longer segments (>10 Mb) increased HR by 2 to 3 percentage points, whereas shorter segments (1-2 Mb) reduced HR by 5 to 7 percentage points. Survival probabilities increased with increasing breeding values. These findings underscore the importance of managing genomic inbreeding to reduce overall culling risks and increase cow survival. Avoiding close inbreeding (ROH >5 Mb) and incorporating genomic relationships into breeding programs can promote the sustainability of dairy systems.

Source: Journal of Dairy Science

DOI: 10.3168/jds.2024-26125

Authors: S. Tenhunen, J.R. Thomasen, L.P. S⊘rensen, M. Kargo, P. Berg, H.M. Nielsen

Institutions: Aarhus University, Norwegian University of Life Sciences

Language: English

Topic: Genetic and phenotypic traits in livestock

Subfield: Genetics

Field: Biochemistry, Genetics and Molecular Biology

Domain: Life Sciences

SDG: Zero hunger

Open Access status: gold

Estimated APC paid: $3,500