Table 2. Number, egg size, cumulative degree-days to hatch and total length prior to the onset of exogenous feeding in salmon of farmed, hybrid and wild origin of C2011, C2012 and C2013.
Egg diameter (mm) | Cumulative degree-days to hatch | Not hatched | Length prior to start-feeding (mm) | |||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Cohort | Strain | Origin | Families | n | Median | Mean | Range | Median | Mean | Range | CV | n | % | n | Median | Mean | Range | CV |
2011 | Figgjo | Wild | 9 | 900 | 5.7 | 5.78 | 5.3–6.1 | 555 | 557 | 534–590 | 1.22 | 0 | 0 | 360 | 28.7 | 28.7 | 26.4–30.8 | 2.85 |
Mowi x Figgjo | F1 hybrid | 10 | 1000 | 6 | 6 | 5.8–6.3 | 563 | 561 | 521–590 | 1.63 | 0 | 0 | 400 | 28.9 | 29 | 26.6–30.8 | 2.42 | |
Mowi | Farm | 10 | 1000 | 6 | 5.97 | 5.8–6.1 | 563 | 564 | 525–601 | 1.73 | 29 | 2.9 | 400 | 29 | 29 | 26.2–31.5 | 2.49 | |
2012 | Figgjo | Wild | 6 | 451 | 6.25 | 6.26 | 6.0–6.4 | 550 | 551 | 538–573 | 1.55 | 3 | 0.7 | 180 | 28.2 | 28.3 | 25.7–30.3 | 2.83 |
Figgjo x Mowi | F1 hybrid | 6 | 450 | 6.2 | 6.2 | 6.0–6.4 | 556 | 556 | 527–619 | 1.68 | 3 | 0.7 | 180 | 28.3 | 28.2 | 26.6–29.9 | 2.35 | |
Mowi x Figgjo | F1 hybrid | 7 | 525 | 6.1 | 6.06 | 5.8–6.4 | 556 | 554 | 538–585 | 1.21 | 4 | 0.8 | 210 | 28.1 | 28.1 | 25.6–30.0 | 3.31 | |
Mowi | Farm | 7 | 525 | 6.1 | 6.14 | 5.8–6.3 | 556 | 558 | 515–590 | 1.77 | 3 | 0.6 | 210 | 28.2 | 28.1 | 25.4–29.9 | 2.71 | |
Vosso | Wild | 7 | 526 | 6 | 5.8 | 5.3–6.3 | 559 | 558 | 523–576 | 1.18 | 1 | 0.2 | 210 | 27.4 | 27.4 | 25.3–29.5 | 2.97 | |
Arna | Wild | 6 | 450 | 5.7 | 5.72 | 5.4–6.1 | 553 | 553 | 537–576 | 1.22 | 3 | 0.7 | 180 | 28.4 | 28.4 | 26.9–30.3 | 2.92 | |
2013 | Figgjo | Wild | 9 | 540 | 6 | 5.86 | 5.0–6.3 | 551 | 552 | 514–587 | 1.87 | 4 | 0.7 | 180 | 27.7 | 27.8 | 25.1–30.1 | 3.48 |
Figgjo x Mowi | F1 hybrid | 7 | 420 | 6 | 5.89 | 5.2–6.3 | 557 | 556 | 524–599 | 1.75 | 1 | 0.2 | 140 | 28 | 27.9 | 25.2–30.0 | 3.63 | |
Mowi x Figgjo | F1 hybrid | 9 | 540 | 6.1 | 6.12 | 5.7–6.4 | 557 | 559 | 539–599 | 1.56 | 3 | 0.6 | 180 | 28.6 | 28.5 | 25.1–30.6 | 3.24 | |
Mowi | Farm | 8 | 480 | 6.1 | 6.11 | 5.8–6.4 | 557 | 563 | 489–677 | 2.61 | 4 | 0.8 | 160 | 28.4 | 28.3 | 25.2–30.8 | 3.7 | |
Vosso | Wild | 4 | 240 | 5.9 | 5.88 | 5.7–6.0 | 556 | 559 | 544–592 | 1.6 | 2 | 0.8 | 80 | 28.3 | 28.3 | 26.5–30.0 | 2.61 | |
SalmoBreed x Vosso | F1 hybrid | 6 | 360 | 6 | 6.03 | 5.8–6.3 | 562 | 558 | 501–604 | 1.65 | 17 | 4.7 | 120 | 28.1 | 28 | 25.9–29.4 | 2.15 | |
SalmoBreed | Farm | 8 | 480 | 6.1 | 6.1 | 5.8–6.4 | 562 | 561 | 519–675 | 2.03 | 10 | 2.1 | 160 | 28.2 | 28.2 | 26.7–29.9 | 2.38 | |
Arna | Wild | 8 | 480 | 5.85 | 5.91 | 5.6–6.3 | 553 | 548 | 507–577 | 2.3 | 1 | 0.2 | 160 | 27.5 | 27.6 | 24.7–30.2 | 3.85 | |
Skibotn | Wild* | 4 | 240 | 6.25 | 6.25 | 6.1–6.4 | 559 | 558 | 515–607 | 1.94 | 7 | 2.9 | 80 | 27.8 | 27.6 | 24.7–29.1 | 3.76 |
CV = coefficient of variation.
*Wild salmon population reared in freshwater at the Norwegian Gene Bank for Atlantic salmon.