JAX® Morula Stage Embryos

Optimize your microinjection workflow, improve the predictability of your microinjection schedule, and eliminate your weekend work by using cryopreserved morulae from JAX.

Special Limited Time Offer — Purchase four or more straws of morula stage embryos by June 30, 2013, and receive 10% off plus free shipping.*
* Free shipping of dry shipper to locations in the USA; customer is responsible for the cost of returning dry shipper to JAX. 

Get started today with our morula stage embryos order form

Product details

  • Cryopreserved 2.5 dpc (days post coitum) morulae from strains C57BL/6J (B6, 000664) and B6(Cg)-Tyrc-2J/J (B6 albino, 000058)
  • 50 morulae per straw
  • Shipped to you in a dry shipper
  • Should be stored in liquid nitrogen until needed
  • Should be thawed 21-24 hours before used and cultured in KSOM under 5% CO2 (see embryo thaw and culture protocol).

Key benefits: simplicity, flexibility

  • Can be stored indefinitely until needed
  • Ready to inject 24 hours after thawing
  • Simplifies coordinating ES cell preparation and microinjection
  • Eliminates need to maintain support colonies, order and mate mice, collect embryos, inject hormones
  • Reduces variability in embryo yield

Ordering

  • Email orderquest@jax.org
  • Phone 1-800-422-6423 (US, Canada & Puerto Rico) or 1-207-288-5845 (from any location)

Validation data

Validation testing was done by The Jackson Laboratory's Microinjection group and three independent research labs. The validation testing was done using C57BL/6J and B6(Cg)-Tyrc-2J/J morulae. Data are summarized in the table below.

Summary results from microinjection experiments at JAX and off-site using cryopreserved morula stage embryos

C57BL/6J B6(Cg)-Tyrc-2J/J
% of embryos
recovered from straw		 94% (1349/1438) 95% (567/599)
% of total that
were live at thaw		 93% (1336/1438) 94% (563/599)
% of total that
cultured to injectable		 63% (872/1438) 76% (453/599)
% of live that
cultured to injectable		 62% (833/1336) 80% (453/563)
% live born 26% (156/603) 18% (23/125)
% of live born
that weaned		 85% (132/156) 65% (15/23)
% of wean that
are chimera		 16% (21/132) 47% (7/15)

Comments from off-site testing labs

"Loved the ease of being able to start injecting right away."

"The embryo quality was consistent unlike with fresh embryos."

"The frozen morulae looked and performed better than the fresh blasts that were collected. Fresh blasts were not as big or round."

Ordering information

Representatives are available
Monday-Friday:
8am-8pm ET (5am-5pm PT)

Toll free: 1-800-422-6423 (US, Canada & Puerto Rico)
or 1-207-288-5845 (from any location)
Morula stage embryos order form