Image of a mouse zygote

Image 1a. Image of a mouse zygote.


Image of a mouse zygote ready to be microinjected

Image 1b. Image of a mouse zygote ready to be microinjected.


Mouse blastocyst injected with modified mouse embryonic stem cells

Image 2. Mouse blastocyst injected with modified mouse embryonic stem cells.


Image of a 6.5 day post coital embryo (6.5 dpc) in a microinjection session with Cre-recombinase

Image 4A. Image of a 6.5 day post coital embryo (6.5 dpc) in a microinjection session with Cre-recombinase.


Detail of the injection site of a 6.5-day post-coital embryo (6.5 dpc) in a microinjection session with Cre-recombinase

Image 3B. Detail of the injection site of a 6.5-day post-coital embryo (6.5 dpc) in a microinjection session with Cre-recombinase.


Mouse sperm detail

Image 4A. Mouse sperm detail.


Mouse oocyte In Vitro Fertilization

Image 4B. Mouse oocyte In Vitro Fertilization (IVF).
The vast majority of these sperm will disappear when we isolate the oocyte for culture.
Only one will reach the goal.


Pig oocytes undergoing microinjection. Note the high lipid content which obscures the cytoplasm and hinders the observation of the cytoplasmic content.

Foto 5. Pig oocytes undergoing microinjection.
Note the high lipid content which obscures the cytoplasm
and hinders the observation of the cytoplasmic content.


Set of pig embryos in a microinjection experiment with CrispR-Cas9, after 5 days of culture

Foto 6. Set of pig embryos in a microinjection experiment with CrispR-Cas9, after 5 days of culture.
Different embryos can be observed at the blastocyst stage, some of them early (yellow arrows),
others expanding (red arrows) and even emerging from the zona pellucida
(time prior to implantation, blue arrow).



Video 1. Sequence of a pronuclear microinjection session in mouse zygotes.


Video 2. Sequence of a microinjection session of mouse blastocysts with embryonic stem cells.


Video 3. Sequence of a mouse Intracytoplasmic Sperm Injection (ICSI) session.