Article
Genetic analysis of stress hormone levels in hair of healthy nursery pigs and their relationships with backtest responses.
Genetics - 6 Aug 2025
Kayondo Fazhir, Al-Shanoon Hayder, Seddon Yolande M, Carette Dylan, Cole Carmen, Janz David M, Fortin Frederic, Harding John C S, Dyck Michael K, Plastow Graham S, Canada PigGen, Dekkers Jack C M
Abstract excerpt
This study explored the genetics of the levels of stress hormones (cortisol, cortisone, DHEA, and DHEA-S) in hair of 863 clinically healthy Yorkshire × Landrace male pigs at ∼40 days of age and evaluated their potential as biomarkers of innate stress response by estimating genetic correlations with responses to a 30 s backtest performed at ∼27 days of age. Backtest responses included the number and intensity of...
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