Structure of preantral follicles, oxidative status and developmental competence of in vitro matured oocytes after ovary storage at 4 °C in the domestic cat model

Table 2 In vitro embryo development after in vitro fertilization of cat oocytes retrieved from ovaries stored for different times at 4 °C

Storage time (h)	n°oocytes fertilized	n°cleaved embryos	n°blastocysts/ cleaved/embryos	n°blastocysts/ total oocytes	Blastocyst cell number (mean ± SD)
0	56	25 (44.6%)^a	15 (60%) ^a	15 (26.8%) ^a	178.5 ± 40.5 ^a
24	48	19 (39.6%) ^a	11 (57.9%) ^a	11 (22.9%) ^a	171.9 ± 44.6 ^a
48	43	16 (37.2%) ^a	1 (6.2%) ^b	1 (2.3%) ^b	98 ^b
72	41	2 (4.9%)^b	0 (0%) ^b	0 (0%) ^b	–
96	39	0 (0%) ^b	0 (0%) ^b	0 (0%) ^b	–

ISSN: 1477-7827