Egg Re-Absorption Cycle

christian lawrence clawrence at rics.bwh.harvard.edu
Wed Apr 20 10:35:00 EST 2005


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Depends on conditions (water quality, temperature, diet, exposure to
males, other females, etc.), and upon the individual, but at 28.5C, fed 3X
day with live artemia, and no exposure to male between spawning events,
the ovarian cycle is around 5-7 days.  You can find this in the literature
(with a little digging), as well.  The eggs will either be reabsorbed or
released during the next spawning event.  They can also build up and block
cloaca (i.e., egg-bound females).


Christian Lawrence
Brigham and Women's Hospital
Karp Family Research Laboratories 06-004B
One Blackfan Circle
Boston, Massachusetts 02115
Tel: 617.355.9041
Fax: 617.355.9064

-----Original Message-----
From: owner-zbrafish at hgmp.mrc.ac.uk
[mailto:owner-zbrafish at hgmp.mrc.ac.uk]On Behalf Of Meghan Nesler
Sent: Thursday, January 20, 2005 3:48 AM
To: zbrafish at net.bio.net
Subject: Egg Re-Absorption Cycle

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Hello Group,

Does anyone know how long an egg would typically be maintained by a female
zebrafish before being reabsorbed if she is not able to release the egg
through spawning?

Thank you,
Meghan Nesler

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