Table 6.
Mean final gut wet weight gain, dry gut index, and gut dry matter production of Lytechinus variegatus fed diets with varying protein and carbohydrate levels, protein:energy ratios (P:E), total energy (TE), and protein:carbohydrate ratios (P:C). P:E is mg of protein per kilocalorie. TE is total dietary energy in calories per gram. P:C is protein:carbohydrate ratio (mg mg-1).
| % Protein | % Carbohydrate | P:E (mg P kcal-1) | TE (calg-1) | P:C | Final Wet Gut Weight (g) | Wet Gut Weight Gain (g) | Dry Gut Index (%) | Final Dry Gut Weight (g) | Dry Gut Production (g) |
|---|---|---|---|---|---|---|---|---|---|
| 12 | 21 | 50.8 | 2380 | 0.57 | 1.08 +/- 0.05 | 0.78 +/- 0.05 | 2.99 +/- 0.00 | 0.27 +/- 0.01 | 0.23 +/- 0.01 |
| 12 | 30 | 44.3 | 2728 | 0.40 | 1.08 +/- 0.06 | 0.78 +/- 0.06 | 2.74 +/- 0.00 | 0.27 +/- 0.01 | 0.23 +/- 0.01 |
| 12 | 39 | 39.3 | 3075 | 0.31 | 1.09 +/- 0.03 | 0.79 +/- 0.03 | 2.73 +/- 0.00 | 0.27 +/- 0.01 | 0.23 +/- 0.01 |
| 19 | 21 | 68.6 | 2783 | 0.90 | 1.26 +/- 0.09 | 0.96 +/- 0.09 | 2.90 +/- 0.00 | 0.32 +/- 0.02 | 0.28 +/- 0.02 |
| 19 | 30 | 60.9 | 3131 | 0.63 | 1.16 +/- 0.05 | 0.86 +/- 0.05 | 2.61 +/- 0.00 | 0.28 +/- 0.01 | 0.24 +/- 0.01 |
| 19 | 39 | 54.9 | 3478 | 0.49 | 0.96 +/- 0.05 | 0.66 +/- 0.05 | 2.33 +/- 0.00 | 0.23 +/- 0.01 | 0.19 +/- 0.01 |
| 28 | 30 | 76.9 | 3647 | 0.93 | 1.17 +/- 0.07 | 0.87 +/- 0.07 | 2.35 +/- 0.00 | 0.28 +/- 0.02 | 0.24 +/- 0.02 |
| 36 | 21 | 95.6 | 3749 | 1.71 | 1.27 +/- 0.06 | 0.97 +/- 0.06 | 2.70 +/- 0.00 | 0.33 +/- 0.01 | 0.29 +/- 0.01 |
Initial average wet gut weight was 0.30+/-0.01 Initial average dry gut weight was 0.04+/-0.01