Table 1. Tidal Volume percent increment (ΔTV%) in response to 6% CO2 in RCF and normally-reared (CT) pups at postnatal day 16–20: Mean Values, Genetic Variance, and Heritability figures estimated from unrelated, half-sib and full-sib individuals.
CTfs/hs | RCFfs/hs | |
Mean ΔTV% response to 6% CO2-enriched air | 34.79±14.63 | 42.50±17.43* |
Genetic Variance for ΔTV% response to 6% CO2-enriched air | 60.01 | 125.25† |
Heritability for ΔTV% response to 6% CO2-enriched air | 0.21 | 0.37 |
Fs = Full sibs; hs = Half-sibs.
*Nested ANOVA: ‘postnatal treatment RCF vs. CT ’ : F1,112 = 8.29, p = 0.0048; ‘sibship’: F14,112 = 2.17, p = 0.01.
Bartlett χ2 = 8.3, p = 0.004 by Variance component analysis.
Heritability was calculated on the basis of half-sibs'correlations.