Growth reaction norms of domesticated, wild and hybrid Atlantic salmon families in response to differing social and physical environments

Table 6 Heritability of the trait body weight (log ₁₀ ) in salmon of all origins, experiment I and II

Experiment	Model	Social or physical treatment	Origin	h2	HPD interval
Experiment	Model	Social or physical treatment	Origin	h2	Lower	Upper
I	4.1	Mixed-strain	Farm	0.33	0.16	0.82
	4.2		Hybrid	0.18	0.07	0.65
	4.3		Wild	0.70	0.36	0.92
II	4.4	Hatchery control	Farm	0.16	0.00	0.57
	4.5		Hybrid	0.09	0.00	0.27
	4.6		Wild	0.51	0.10	0.85
	4.7	Restricted hatchery	Farm	0.26	0.02	0.69
	4.8		Hybrid	0.12	0.00	0.44
	4.9		Wild	0.15	0.00	0.43

Heritability h² of the trait body weight (log₁₀) calculated using the animal model, implemented by MCMCglmm. The upper and lower 95% highest posterior density (HPD) intervals represent the credibility intervals of the estimated h². Models were fitted separately for each experimental group, in all treatments. In addition to the breeding value, Animal, the random effect of tank was included in all models as this improved the fit of the MCMCglmm.

ISSN: 2730-7182