Table 4.
Body and organ weights of conventionally raised and germ-free C57BL/6 mice
| Male |
Female |
|||
|---|---|---|---|---|
| Mean ± SE | % Difference | Mean ± SE | % Difference | |
| BW, g | ||||
| CONV-R | 23.0 ± 0.5 | NS | 18.8 ± 0.28 | NS |
| GF | 23.9 ± 0.5 | 18.8 ± 0.50 | ||
| Liver, % of BW | ||||
| CONV-R | 4.87 ± 0.14 | –26%*** | 4.81 ± 0.11 | –15%** |
| GF | 3.58 ± 0.05 | 4.10 ± 0.19 | ||
| Gonadal fat, % of BW | ||||
| CONV-R | 0.91 ± 0.06 | NS | 0.51 ± 0.03 | –60%*** |
| GF | 0.88 ± 0.05 | 0.20 ± 0.02 | ||
| Thymus, % of BW | ||||
| CONV-R | 0.19 ± 0.008 | –30%*** | 0.27 ± 0.01 | NS |
| GF | 0.13 ± 0.007 | 0.25 ± 0.01 | ||
| Testes, % of BW | ||||
| CONV-R | 0.72 ± 0.05 | +20%* | ||
| GF | 0.87 ± 0.03 | |||
| Seminal vesicles, % of BW | ||||
| CONV-R | 0.58 ± 0.03 | +14%* | ||
| GF | 0.65 ± 0.02 | |||
Values are shown as means ± SE; n = 10 mice per group. BW, body weight; CONV-R, conventionally raised; GF, germ free. Significance according to Student’s unpaired 2-tailed t test denoted as nonsignificant (NS) = P > 0.05,
*
P < 0.05,
**
P < 0.01,
***
P < 0.0001.