Table. 1.

Recovery efficiency of oocytes and oocytes grade according to one time OPU session in a week in Hanwoo cows

OPU frequency (/week) Donor Sessions No. follicle (Mean±SD) No. collected oocytes (%) Oocytes grade (%)

G1 G2 G3 G4
Once A 8 120 (15.0 ± 3.86) 74 (61.7) 18 (24.3) 17 (23) 17 (23) 22 (29.7)
B 8 88 (11.0 ± 2.45) 59 (67.0) 16 (27.1) 13 (22.0) 17 (28.8) 13 (22.1)
C 8 84 (10.5 ± 2.20) 57 (67.8) 14 (24.6) 18 (31.6) 11 (19.3) 14 (24.5)

G1: Grade 1, G2: Grade 2, G3: Grade 3, G4: Grade 4.

Journal of Animal Reproduction and Biotechnology 2019;34:300~304 https://doi.org/10.12750/JARB.34.4.300
© J Anim Reprod Biotechnol