Table 1 Summary of test embryo microinjection of Cas9 mRNA and Npc1l1sgRNA

From: Efficient generation of gene-modified pigs via injection of zygote with Cas9/sgRNA

Number of collected ovaries

Number of cultured COCs

Number of mature oocytes

Number of Cas9/sgRNA injection oocytes

Cleavage rate at 48 hr post activation

Blastocyst development rate at 144 hr post activation

Injected group

Untreated group

Injected group

Untreated group

Injected group

Untreated group

400

810

420

195

225

52.8% (103/195)a

40.4% (91/225)b

14.4% (28/195)a

13.3% (30/225)a

  1. Note: The a and b indicate statistical significance.