Table 2 The effect of Genetic lines susceptible (GenS) and resistance (GenR) to salmon lice infection on lice counts and mucosal VOC expression.

From: Variation in volatile organic compounds in Atlantic salmon mucus is associated with resistance to salmon lice infection

Trait

Control – water inlet

Control – mucus prior to infection

N

GENS

GENR

Significance level

R2

Log10(Lice)

N/A

N/A

171

1.48 ± 0.02

1.32 ± 0.02

P < 0.001

0.97

Loge(1-octen-3-ol)

0

10.4 ± 0.2

24

13.7 ± 0.2

12.8 ± 0.2

P < 0.005

0.99

Loge(6-methyl-5-hepten-2-one)

0

12.8 ± 0.1

24

12.2 ± 0.1

12.1 ± 0.1

P < 0.05

0.99

Loge(3,5,5-trimethyl-2-hexene )

0

12.0 ± 0.1

24

14.6 ± 0.3

13.1 ± 0.3

P <  = 0.001

0.99

Loge(benzene)

9.2

11.3 ± 0.1

24

14.6 ± 0.1

14.1 ± 0.1

P < 0.05

0.99

  1. Trait – Lice is count, VOC measured as integrated GC peak area, Control – water inlet = VOC in a single water sample from the inlet, Control – mucus prior to infection = VOC in 10 random samples before the fish were challenged with lice, N = number of fish sampled, GenS = the genetically susceptible line, GenR = genetically resistant line. R2 = coefficient of determination. Standard errors given after estimates and  ± .
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