Embryonic diapause functions to synchronize hatching time with certain seasons and years.
Embryonic diapause plays an important role in controlling embryonic development to avoid hatching during adverse seasons; it allows eggs to hatch in favorable seasons (Tauber et al.
Eggs from this strain do not enter embryonic diapause at 30 [degrees]C and hatch in 14-15 days.
Tanaka S (1992) The significance of embryonic diapause in a Japanese strain of the migratory locust, Locusta migratoria (Orthoptera: Acrididae).
The artificial abortion group (control group) should meet all the following conditions: without history of spontaneous abortion (or embryonic diapause
); regular menstrual cycle; consistency between menopausal days and results of gestational sac ultrasound; detection of fetal heart beat in preoperative ultrasonography; normal results of liver function tests; and negative result for infection index (hepatitis B, HIV, and syphilis).
There are documented cases of 'embryonic diapause
' in sows (Jackson, 1993), and anecdotal cases in goats and sheep.
Similar patterns of embryonic diapause
, hypothesized to delay larval release into periods of primary production, occurred at warmer (6 to 12 [degrees]C) temperatures with red king crab, P.
baurii can be arrested over winter (embryonic diapause), striped mud turtle eggs may remain in the nest cavity for as long as 1 yr before completion of development (Ewert 1991, Ewert and Wilson 1996).
I recorded the date that the embryo broke embryonic diapause (resumed development) and the condition of each embryo.
Eggs of striped mud turtles are laid in the fall, remain in embryonic diapause throughout the winter months, and continue embryonic development when temperatures increase in the spring (Ewert and Wilson 1996).
Eggs produced by the first laboratory generation were incubated at 20[+ or -]1[degrees]C for 1 month and then chilled at 10[+ or -]1[degrees]C for 5 months to terminate embryonic diapause
These eggs were incubated at 20[degrees]C for a month before being chilled at 5[degrees]C for 3 months to terminate embryonic diapause