Table 6.

Changes in the mRNA levels of BCL2 in all follicular categories of duck and goose ovaries during the first 6 post-hatching week.

Species	Week of age	Primordial follicle	Primary follicle	Secondary follicle
Duck	1	0.028 ± 0.002c	N.A.	N.A.
	2	0.015 ± 0.003d	N.A.	N.A.
	3	0.023 ± 0.002c,d	0.016 ± 0.001c	N.A.
	4	0.024 ± 0.004c,d	0.033 ± 0.008b	0.033 ± 0.002c
	5	0.064 ± 0.007a	0.062 ± 0.006a	0.085 ± 0.001a
	6	0.050 ± 0.008b	0.061 ± 0.004a	0.054 ± 0.013b
Goose	1	0.021 ± 0.002b	N.A.	N.A.
	2	0.055 ± 0.005a	N.A.	N.A.
	3	0.022 ± 0.005b	0.037 ± 0.007a	N.A.
	4	0.047 ± 0.006a	0.027 ± 0.004b,c	0.020 ± 0.004b
	5	0.047 ± 0.006a	0.032 ± 0.003a,b	0.039 ± 0.006a
	6	0.010 ± 0.001c	0.021 ± 0.001c	0.021 ± 0.001b
P-value	Species effect	0.7558	<0.0001	<0.0001
	Age effect	<0.0001	<0.0001	<0.0001
	Interaction effect	<0.0001	<0.0001	0.0080

^a–dDifferent lowercase letters indicate significant differences in the same follicular category of the same species across weeks at P < 0.05.

Abbreviations: BCL2, B-cell leukemia/lymphoma 2; N.A., not available.