Genetic variation in packed cell volume associated with variations in response to cold temperature
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Updated: Oct 2, 2026

Novel Assay for Cold Nociception in Drosophila Larvae
Published on: April 3, 2017
Abstract:
The heritability of packed red blood cell volume (PCV) and its correlation to gain in chicks brooded at a relatively cold (26.7 C) and a normal (32.2 C) environmental temperature were compared. The PCV of progeny from 28 sire families brooded at 26.7 C was 32.7% compared to 30.9% for progeny from the same sire families brooded at 32.2 C. The respective PCV heritabilities for the 26.7 C and 32.2 C groups were .51 and .57. There were no significant differences in gain for the groups brooded at different temperatures, and PCV was not correlated with gain.U
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