Table 1.

Number of normal and abnormal preantral follicles observed for each classification in collected ovarian tissue per mare. A total of 438 histological sections were read (55 ± 3.1 sections per ovarian pair of each mare). Mares 1, 2, 3, and 4 were 8, 4, 4, and 9 years old, respectively. Mares 5–8 were all ≥20 years old.

Animal	Primordial		Transitional		Primary		Secondary		Overall
	Normal	Abnormal	Normal	Abnormal	Normal	Abnormal	Normal	Abnormal	Normal	Abnormal
1	307	17	35	3	6	0	5	0	353	20
2	2679	764	3777	866	2486	419	3	1	8945	2050
3	247	34	147	13	55	2	3	0	452	49
4	233	49	60	8	20	0	2	0	315	57
5	468	6	116	7	14	3	2	0	600	16
6	81	4	32	2	10	2	2	1	125	9
7	58	3	2	4	3	1	1	0	64	8
8	56	5	16	4	7	3	0	0	79	12
Overall	4129	882	4185	907	2601	430	18	2	10,933	2221