Table 1.

Quantification of WFA positive cells in the left and right genital ridges of 3-day-old quail embryos.

Number of stage 19 (P&I)* embryo (n)	+WFA positive cells in the left gonadal ridges (mean ± SD)	WFA positive cells in the right gonadal ridges (mean ± SD)
1	141 (20 ± 4)	103 (15 ± 4)
2	211 (21 ± 6)	142 (14 ± 3)
3	294 (29 ± 7)	221 (22 ± 5)
4	230 (23 ± 3)	316 (32 ± 9)
5	336 (34 ± 5)	323 (32 ± 6)
6	284 (28 ± 4)	277 (28 ± 3)
Total	1,496 (26 ± 7)	1,382 (24 ± 9)

*Stage classified according to Padgett and Ivey, 1960 (P&I) [17].

⁺WFA (Wisteria floribunda) lectin binding with its sugar-binding specificity, α/β-GalNAc^¶.  

^¶N-Acetylgalactosamine group.

The average PGC numbers (WFA positive cells) of quail embryos are indicated in parentheses.