Table 2
Digestive gland ratios of structural elements of N. norvegicus compared between months and sex, with number of the measured tubules in brackets. Results are given as means with standard error of mean within parenthesis. Means in a column per month and per sex followed by the same superscript are not significantly different (p > 0.05).
| N. norvegicus | Lumen to whole tubule area ratio | B-cells to whole tubule area ratio | F-cells to whole tubule area ratio | R-cells to whole tubule area ratio | |
|---|---|---|---|---|---|
| March | Male (160) | 0.12a (0.007) | 0.10a (0.006) | 0.09a (0.004) | 0.80a (0.009) |
| Female (120) | 0.11a (0.009) | 0.11a (0.007) | 0.09a (0.005) | 0.80a (0.011) | |
| May | Male (140) | 0.14b (0.005) | 0.09a ± (0.005) | 0.09a (0.003) | 0.82a (0.006) |
| Female (150) | 0.13a,b (0.007) | 0.10a (0.007) | 0.08b (0.003) | 0.82a (0.007) | |
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