Table 1.
Tissue δD in quail
| Tissue | Diet 1
|
Diet 2
|
||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Water 1 | n | Water 2 | n | Water-derived hydrogen, % | Water 1 | n | Water 2 | n | Water-derived hydrogen, % | |
| Blood | −142 ± 6 | 7* | −69 ± 3 | 7* | 22 | −162 ± 3 | 3* | −94 ± 5 | 3* | 21 |
| Muscle | −137 ± 2 | 7* | −68 ± 3 | 7* | 21 | −158 ± 1 | 3*† | −99 ± 3 | 2* | 18 |
| Liver | −127 ± 2 | 7† | −50 ± 2 | 7† | 24 | −151 ± 4 | 4† | −84 ± 1 | 3† | 21 |
| Lipids | −198 ± 3 | 7‡ | −141 ± 3 | 7‡ | 18 | −256 ± 5 | 3‡ | −194 ± 5 | 3‡ | 19 |
| Feather | −134 ± 2 | 5* | −29 ± 2 | 3§ | 32 | −152 ± 1 | 3* | −72 ± 1 | 5§ | 26 |
| Nail | −118 ± 3 | 7¶ | −31 ± 3 | 7§ | 27 | — | — | — | — | — |
Mean δD ± SD (n) of tissues from quail raised with exclusive access to one of two dietary (diet 1 = −56 ± 2%, n = 7; diet 2 = −146 ± 8%, n = 8) and drinking water (water 1 = −130 ± 1%, n = 6; water 1 = +196 ± 2%, n = 6) treatments. Calculated percent contribution of drinking water to tissue δD values for quail raised on each diet was calculated by using ΔδDtissue/ΔδDwater × 100%. For each tissue, all between-group δD values were significantly different (ANOVA, P < 0.05). Within groups, δD values with common symbols indicate no significant difference (Tukey’s test). All δD values refer to measurements of nonexchangeable hydrogen.