SURGICAL APPROACH OF AN EARLY MAMMALIAN EMBRYO - THE RABBIT MODEL

We describe an experimental surgical model in early rabbit embryo (12. 5 days of gestation), Twenty-one embryos were operated, of which 9 sur vived the first postoperative week and 5 had normal further growth unt il term, As far as we can ascertain, this is the first successful repo rt of a surgical approach in early mammalian embryos. We think that th is model may be useful for workers involved in the study of early cong enital malformations.