. Author manuscript; available in PMC: 2009 Apr 24.

Published in final edited form as: Reproduction. 2006 Apr;131(4):771–782. doi: 10.1530/rep.1.00870

Table 2.

Effects of long (16L: 8D) vs short (8L:16D) photoperiod exposure on preantral follicles, early antral/antral follicles and corpora lutea in Siberian hamsters.

Photoperiod group	Preantral^*	Early antral/antral^*	Corpora lutea^†
LD	3.50 ± 0.28^a	0.310 ± 0.052^a	3.25 ± 0.31^a
3 SD	3.65 ± 0.31^a	0.339 ± 0.091^a	1.80 ± 0.51^a,^b
6 SD	3.68 ± 0.31^a	0.338 ± 0.080^a	1.90 ± 0.55^a,^b
9 SD	2.92 ± 0.32^a,^b	0.333 ± 0.081^a	1.89 ± 0.45^a,^b
12 SD	2.15 ± 0.40^b,^c	0.000 ± 0.000^b	0.00 ± 0.00^c

Values represent the mean ± S.E.M. pre ovarian section

^†

Values represent the mean ± S.E.M. per ovary.

^a,b,c

Within each column, values with different letters differ significantly (P < 0.05).