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The steamed worm( Brine Shrimp) calls salt solution bumper
harvest year worms too. China folk to call salt insect or the
bumper harvest year shrimp too. It is arthropod's door on classifying,
there is gill subphylum, the key link of crust, Gill's foot
subclass, does not have first eye, worm's family of bumper
harvest year of salt solution, Steamed worm belong to steamed
worm as one important bait biological and good animal used
as test material, Been receiving people's extensive attention
all the time .
The research of the steamed worm, since 1775, have already
had a history of more than 200 years so far. But as animal's
bait application of the aquatic products, began since 1930's,
Seale of U.S.A. hatch for the first time and have sections
of detailed body regard flounder son living bait of fish as
steamed worm 1933, Rollefsen of Norway,etc. have sections of
the young cultivate fry with steamed worm for living bait too
afterwards, Succeed , prove steamed worm have sections of the
young son young good bait of fish, So receive the great attention
of the domestic and international aquaculture worker.
Our country in to take the place of later stage 50, Ins of
marine,Academia Sinica pieces of filial piety majestic professor
find the steamed worm's ovums of our country for the first
time, Bank up through ten over marine products fry with earth
good to test. Prove steamed worm have sections of the young
son, young good living bait of fish. Corresponding development
steamed investigation, collection, hatch and research that
train of worm's ovum at the same time, Have accumulated a lot
of valuable materials.
Our country one steamed worm resource abundant country, coastal
salt pan stores up and up to 345,000 hectares, Inland large
and medium-sized Salt lake have nearly thousand. In these wide
water, contain very abundant steamed worm resources.
Begin the sixties, in the world a lot of country go on test
of cultivating and produce to steamed worm in succession, And
is developed rapidly. Country launch steamed worm increases
, cultivates testing by a large scale in Brazil, Thailand,
Philippine, India,etc. at first. Carry on room high density
punctilous animal husbandry test in Belgium, U.S.A.. In addition
world other country go on test of producing too. Especially
the past ten years, fast-growth, to increase, cultivate and
produce and it makes to be quite noticeable economic benefits
and social benefit already steamed worm. Our country has carried
on increasesing, cultivates testing of the steamed worm since
middle period of the eighties, has made certain progress too,
Publish report on ones that increase , cultivate the respect
been no a lot of even up till now. To gather season in autumn
generally, but have a small amount of steamed worm's ovums
that are support gathering even in spring steamed worm's ovum.
Except U.S.A. California promise steamed worm produce dormancy
ovum of sinking etc., other area most steamed dormancy that
worm produce ovum ovum of floating etc.. Ovum reach bankpile
up together by alluviation stormy waves often, light and reddish
brown. Can blow and fetch from bank directly , use a purpose-built
one light to dip net, office fish for and float onsurface of
water or suspend ovum of the ink in leeward. Use for and collect
and blow to wind steamedworm's ovum of bank, daily a square
one little to dip net generally( network mouth 40 eye, pocket
90eye), Whether it use for it collect worm's ovum not steamed
of water body,round one not daily the little to dip net( above
40 eye, under 90 eye). In addition too can dig hole orconstruct
and float bar by pool , make ovum concentrate on some water
body, In order to gather.
Ovum that gather just must guard against and pile up, want
and undergo the following processing step gather generally:
1.wash: Wash and use toper barrel generally , develop with
fresh water first , develop with the sea water and then. The
main purpose washed is to remove the incidental, ovum shell
and filth on the surface.
2.dehydrate: The method that the wet ovum dehydrates is generally
at odds with the community or the leadership first , and then
dry in the shade; Do ovum , should dry vacuum have behind low
temperature.
3.dry: In the course of drying, should prevent temperature
from being too high( not exceed 40 degrees ) and tan by the
sun under the sunshine.
4.screen: Divide with different screen mesh of aperture layer
sieve.
5.packaging: Vacuum or filling on the sealed packaging of
nitrogen. 6.store: Whether it is wet ovum want freezer not
to be kept,besides,in - 18 degrees transfer on the one week,
And then transfer for one week in the normal atmospheric temperature.
Store for doing the general low temperature of ovum . Gather
steamed worm's ovum that deal with through step the above,
store one year, ovum rate can still keep 70% in Right deviation.lefsen |
