Cryopreservation of Mammalian Oocyte for Conservation of Animal Genetics

Table 1

Differences of animal oocyte and embryo cryopreservation resistance among species, developmental stages, and origin.

	More resistance	Less resistance
Species	Bovine, ovine	Porcine, equine
Developmental Stages	Morula, YBL, and BL	Hatched BL and oocytes
Origin	In vivo derived embryos	In vitro produced embryos, micromanipulated embryos

YBL: young blastocyst; BL: blastocyst. Adapted from Pereira and Marques, 2008 [3].