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Re: [Killietalk] brine shrimp egg shells fallingto the bottom whenhatched
It can greatly depend on your room humidity. Anywhere in the Bay Area,
even the realively drier S.E. (Fremont, Milpitas, SJ) area will see
sharp degradation in the hatchability of those eggs nearest the surface.
In my high desert air in Bishop, it probably would not be a problem
anytime it isn't actually raining. [We run about 15% RH most of the
Leaving the can in the ultra-dry air of a frost-free refrigerator, and
dipping eggs from there would possibly work OK, too -- about like
pouring from a small hole in the lid.
If you stick a mirror in with the eggs, and the next time you open the
can it does not fog up, you probably are not hurting the eggs. At recent
egg prices, I am really disinclined to gamble, tho. ;-)
Barry Cooper wrote:
What you describe has not been my experience. I do store unopened cans
in the freezer and I store opened cans in the refrigerator. I open the
latter daily to remove about 1 heaping teaspoonful of eggs. The can is
open just long enough to do so. I have not noticed any degradation of
hatch rate over the lifetime of a 1 lb can, using the premium quality
cysts bought from Jehmco.
At 08:26 AM 11/24/2003 -0800, you wrote:
Couple of comments:
Refrigeration is now recommended over freezing (proven better cyst
survival over time). Eggs are quickly killed if you open a can of cold
cysts in normal room humidity (right from *either* refrigerator or
freezer). They *must* be warmed to room temp. before opening.
An invisible fog of dew settles on all the cold eggs near the surface,
which triggers hatch signals. Then, when the rains don't come to wash
them into the salty lake water, they die and will never hatch. Those
end up at the bottom of your hatchery, and usually won't float to the
top with the empty shells. You can quickly change 90% eggs to <50%
eggs by not letting them warm up for a day before removing the lid.
Some get away with use directly from cold storage by only poking a
tiny hole in the can to pour eggs from, but not letting in much room
humidity. Tape or put a plastic lid over the hole at all times when
not actually pouring out eggs.
Since I rarely hatch more than a tsp. of eggs at a time, I find it
easier to let a can warm for a day, and then pour out a few weeks
worth into a small jar with a good lid. I leave the jar out and put
the sealed can back in the back of the refrigerator until I run low.
Wright Huntley -- 760 872-3995 -- Rt. 001 Box K36, Bishop CA 93514
Procrastination day has been postponed!
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