Table. 4.

Comparison of oocyte recovery efficiency by using OPU after two and three months of recovery periods in Hanwoo cows

Recovery period (month) No. donor cow OPU session No. of aspirated follicles No. of recovered oocytes (%) Grade number of oocytes (%)

G1 G2 G3 G4
2 2 26 395 255 (64.6) 57 (22.4) 43 (16.9) 62 (24.3) 93 (36.5)a
3 2 22 429 304 (70.9) 67 (22.0) 67 (22.0) 87 (28.6) 83 (27.3)b

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

Values with superscript mean that the group with three months recovery period tend to have high grade number of oocytes compared with the groups with two months recovery period (p < 0.06).

Values with different superscripts differ significantly between two and three months of recover groups (p < 0.05).

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