Fig. 5. Effect of dehydration and sex steroid administration on (A) number and (B) area of ir-AVT cell bodies in the paraventricular nucleus (PVN) region of the hypothalamus of Japanese quail. Values are means ± S.E.M. (N=10). ^*P<0.05; ^**P<0.01; ^***P<0.001 (significance of difference from control). Abbreviations as in Fig. 3.