Table 2 Spindle morphology and chromosome alignments observed in IVM bovine oocytes vitrified/warmed after IVM with or without FF-EVs from small or large follicles.

Control

62 (92.42 ± 4.06)^a

1 (1.33 ± 1.33)^a

0 ^a

0 ^a

Small

58 (84.98 ± 2.36)^a

3 (4.64 ± 2.11)^{a, b}

0 ^a

3 (4.64 ± 2.11)^{a, b}

Large

54 (85.18 ± 2.00)^a

2 (2.59 ± 1.63)^a

0 ^a

2 (2.59 ± 1.63)^a

VIT

71 (65.81 ± 4.95)^b

4 (4.06 ± 1.95)^a

13 (12.01 ± 4.35)^b

11 (9.50 ± 3.21)^{a, b}

VIT Small

56 (66.74 ± 4.84)^b

11 (14.13 ± 3.32)^b

5 (6.29 ± 2.05)^{a, b}

12 (15.31 ± 3.32)^b

VIT Large

70 (76.64 ± 5.35)^{a, b}

7 (7.07 ± 1.90)^{a, b}

2 (2.44 ± 1.76)^{a, b}

7 (7.07 ± 1.90)^{a, b}