Table 7
Mean and confidence interval of food conversionrates (α = 0.05) by testing period Pp: Palmaria palmata, Ld: Laminaria digitata, Ui: Ulva intestinalis, Cr: Ceramnium rubrum, Pp25 − Ld75: a diet composed of 25% P. palmata and 75% L. digitata. Pp75%: diet consisting of 75% of the amount of P. palmata consumed when supplied ad libitum. For each season, diets that do not share a letter significantly differ (ANOVA and SNK tests, p < 0.05).
| Food conversion rate (FCR) | ||||
|---|---|---|---|---|
| E1 (Winter) | E2 (Spring) | E3 (Summer) | E4 (Autumn) | |
| Palmaria palmata | 4.83 ± 0.32a | 6.63 ± 0.36a | 6.32 ± 0.52a | 4.71 ± 0.34abc |
| Pp75 − Ld25 | 5.26 ± 0.09a | 7.03 ± 0.38a | 6.40 ± 0.71a | 5.22 ± 0.25abc |
| Pp50 − Ld50 | 5.64 ± 0.35a | 7.77 ± 0.64a | 6.48 ± 0.57a | 5.67 ± 0.30abc |
| Pp25 − Ld75 | 6.35 ± 1.25a | 10.25 ± 0.11a | 8.02 ± 1.18b | 6.46 ± 0.02ac |
| Laminaria digitata | 11.43 ± 1.88b | 17.95 ± 1.95b | 7.83 ± 0.04b | 8.06 ± 0.34a |
| Ulva intestinalis (frozen) | 60.64 ± 11.26c | 35.31 ± 4.87c | ||
| Ulva intestinalis (fresh) | 11.52 ± 0.33a | 19.41 ± 1.14c | ||
| Pp50 −Ui(frozen50) | 7.51 ± 0.27a | |||
| Ld50 −Ui(frozen50) | 16.10 ± 1.99c | |||
| Pp33 − Ld33 −Ui(frozen 33) | 7.71 ± 0.51a | |||
| Chondrus crispus | 12.56 ± 1.27a | |||
| Chondruscrispus(cultivated) | 12.28 ± 4.16a | |||
| Pp50 −Ui(fresh50) | 9.40 ± 0.40b | |||
| Porphyra umbilicalis | 8.97 ± 0.99b | |||
| Ceramium rubrum | 9.94 ± 1.63d | |||
| Ceramiumrubrum (cultivated) | 5.04 ± 0.42c | |||
| Pp50 −Cr(cultivated50) | 4.22 ± 0.08b | |||
| Pp50 | 5.57 ± 0.63a | |||
| Pp75 | 4.19 ± 0.39b | |||
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