Table 2. Isotopic enrichment of the lean and lipid fractions in the whole bodies of insects raised on diets supplemented with either 13C-leucine or 13C-palmitic acid.
See Table 1 for dosing levels.
| Species | Treatment | Fraction | δ13C | s.d. |
|---|---|---|---|---|
| G. portentosa | palmitic acid | lipid | 22.4 | 3.5 |
| palmitic acid | lean | -12.8 | 0.9 | |
| leucine | lipid | -21.5 | 0.2 | |
| leucine | lean | 3.5 | 4.3 | |
| A. domesticus | palmitic acid | lipid | 33.7 | 1.6 |
| palmitic acid | lean | -13.0 | 1.2 | |
| leucine | lipid | -22.5 | 0.9 | |
| leucine | lean | 29.7 | 4.1 | |
| R. microptera | palmitic acid | lipid | 39.3 | 2.9 |
| palmitic acid | lean | -12.1 | 1.6 | |
| leucine | lipid | -16.8 | 1.6 | |
| leucine | lean | 43.4 | 3.4 | |
| Z. morio | palmitic acid | lipid | 33.0 | 2.7 |
| palmitic acid | lean | -13.0 | 1.3 | |
| leucine | lipid | -18.1 | 0.9 | |
| leucine | lean | 52.1 | 3.8 | |
| M. sexta | palmitic acid | lipid | 176.6 | 72.3 |
| palmitic acid | lean | 5.9 | 8.5 | |
| leucine | lipid | -2.7 | 3.3 | |
| leucine | lean | 123.3 | 61.7 |