Table. 2.

Recovery efficiency of oocytes and oocytes grade according to twice 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
Twice D 14 162 (11.57 ± 2.98) 115 (70.9) 35 (30.4) 20 (17.4) 25 (21.7) 35 (30.5)
E 14 217 (15.5 ± 3.06) 150 (69.1) 52 (34.7) 38 (25.3) 37 (24.7) 23 (15.3)
F 14 271 (20.84 ± 5.27) 179 (66.1) 58 (32.4) 31 (17.3) 34 (19.0) 56 (31.3)

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