Research Note: Developmental Ability of Twin Embryos Produced by Microinjection Treatment into Chick Blastoderm

Twins and triplets of chick embryos were produced by microinjection treatment of cell suspension into the blastoderm. One pair of the twin embryos had an ability to develop normally and survived up to Day 21 of incubation, but did not hatch. The other twins and triplets died within 7 days.