CN110100718A - A kind of porphyra haitanensis cold net cultural method suitable for northern sea area - Google Patents
A kind of porphyra haitanensis cold net cultural method suitable for northern sea area Download PDFInfo
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- CN110100718A CN110100718A CN201910388415.3A CN201910388415A CN110100718A CN 110100718 A CN110100718 A CN 110100718A CN 201910388415 A CN201910388415 A CN 201910388415A CN 110100718 A CN110100718 A CN 110100718A
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- porphyra haitanensis
- lace curtaining
- seedling
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- porphyra
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G33/00—Cultivation of seaweed or algae
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Abstract
The invention discloses a kind of porphyra haitanensis cold net cultural methods suitable for northern sea area, include the following steps；In mid or late October, north cultivation area is transported to refrigerator car from south by the lace curtaining for being attached with porphyra haitanensis seedling；It after diatom and the sludge of removing larger miscellaneous algae and surface attachment, is placed in super-magnum centrifuge and is dehydrated, dewatered weight is dehydration fresh weight；Dewatered lace curtaining is placed on outdoor sunning to the 47~52% of dehydration fresh weight；Lace curtaining after sunning is installed with Polythene Bag, internal air is emptied, is then tamping sealing part with cord.By the Polythene Bag fast cooling equipped with lace curtaining to -15 DEG C~-22 DEG C, then in low-temperature storage interior preservation 160-200 days.At sea temperature rise to 11-13 DEG C and it is 7 days continual and steady after, stored refrigerated lace curtaining is first thawed, is transported together with Polythene Bag to seashore after defrosting, lace curtaining is hung on cultivation base in big low tide one and carries out mariculture；Porphyra haitanensis fresh goods can be harvested after porphyra haitanensis is grown 25 days.
Description
Technical field
Porphyra haitanensis seedling net is temporarily stored the present invention relates to a kind of porphyra haitanensis cultural method, in particular to using deepfreeze,
And the method that northern sea area cultivates is placed in suitable time.
Background technique
The existing porphyra haitanensis in China and two kinds of Porphyra yezoensis main seaweed artificial cultivation kinds, wherein porphyra haitanensis is China spy
Some temperate zone seaweed, are mainly cultivated in the Fujian and Zhejiang of southern china, and yield accounts for the major part of Chinese seaweed yield, is
The yield for improving northern seaweed begins to grope porphyra haitanensis in north cultivation from eighties of last century late nineteen eighties practitioner
Method simultaneously achieves success.
But porphyra haitanensis is in northern breeding process, and it is more intractable etc. difficult to encounter growth period shorter and miscellaneous algae, and leads
The refrigeration network technology that be applied to Porphyra yezoensis can effectively solve the problem that these problems, simultaneously as the biology of porphyra haitanensis itself
Characteristic and Porphyra yezoensis different from, in seedling-raising technique, refrigeration seed size, refrigerated storage temperature and time, the in terms of of plunging into the commercial sea
Carry out relevant art adjustment.
The present invention is directed to the above technological deficiency, and the application to porphyra haitanensis cold net cultural technique in northern sea area is changed
Into.
Summary of the invention
The technical problem to be solved by the present invention is to be directed to the deficiencies in the prior art, and provide a kind of suitable for north
The porphyra haitanensis cold net cultural method of Fang Haiqu.
To achieve the goals above, the present invention adopts the following technical scheme:
A kind of porphyra haitanensis cold net cultural method suitable for northern sea area, comprising the following steps:
(1) it dries and encapsulates:
In mid or late October, north cultivation area is transported to refrigerator car from south by the lace curtaining for being attached with porphyra haitanensis seedling；
After transporting purpose, the attachments such as larger miscellaneous algae are extractd with hand, then remove surface attachment with clean sea water hydro-peening frond surface
Diatom and sludge；Then the lace curtaining for being attached with porphyra haitanensis seedling is placed in super-magnum centrifuge and is dehydrated, dewatered weight is de-
Water fresh weight；The dewatered lace curtaining for being attached with porphyra haitanensis seedling is placed on outdoor, lace curtaining is spread out at ventilation lucifugal, is dried to de-
The 47~52% of water fresh weight；The lace curtaining for being attached with porphyra haitanensis seedling for being up to requirement is installed with Polythene Bag, empties inside
Then sealing part is tamping by air with cord；
(2) stored refrigerated:
Extremely -15 DEG C~-22 DEG C of Polythene Bag fast cooling of lace curtaining will be equipped in step (1), then between low-temperature storage
It is interior to save 160~200 days；
(3) it thaws and plunges into the commercial sea:
At sea temperature rise to 11~13 DEG C and it is 7 days continual and steady after, lace curtaining stored refrigerated in step (2) is first solved
Freeze, transported together with Polythene Bag to seashore after defrosting, lace curtaining is hung on cultivation base in big low tide one and carries out mariculture；
The growing state of continuous observation seaweed seedling since second day rejected the porphyra haitanensis children for not recovering to atropurpureus at the 7th day
Seedling can harvest porphyra haitanensis fresh goods after porphyra haitanensis is grown 25 days.
In above-mentioned technical proposal, in step (1), the length of porphyra haitanensis seedling is 8~12cm, using such biggish seed
It can guarantee the relatively strong vigor after seedling is plunged into the commercial sea as far as possible.
In above-mentioned technical proposal, in step (1), the revolving speed of super-magnum centrifuge is 150~200 turns/min, and dewatering time is
20min, such revolving speed and time can reduce falling off for the seedling of 8~12cm to the greatest extent.
In above-mentioned technical proposal, in step (1), the porphyra haitanensis lace curtaining for being attached with porphyra haitanensis seedling is placed in fair weather
Outdoor, between 2.5~4h by the dewatered porphyra haitanensis lace curtaining for being attached with porphyra haitanensis seedling be dried to dehydration fresh weight 47~
52%；Meet the normal temperature of exposure and dry requirement of seaweed.
In above-mentioned technical proposal, in step (2), the Polythene Bag fast cooling of lace curtaining will be housed to -15 DEG C in step (1)
~-22 DEG C of method are as follows: be first put in -25 DEG C~-30 DEG C air-cooled and cool to -15 DEG C~-22 DEG C in 3~8h, then
It is transferred to prolonged cold and stores interior preservation, when storage not be compacted from each other.
In above-mentioned technical proposal, in step (2), the Polythene Bag fast cooling in step (1) equipped with lace curtaining is preferably to -20
℃。
In above-mentioned technical proposal, in step (3), defrosting is referred to: being gradually promoted to -5 according to the heating rate of 1 DEG C/h
DEG C, it thaws at -5 DEG C.
In above-mentioned technical proposal, in step (3), the lace curtaining after defrosting is transported within 4h together with Polythene Bag to sea
Side.
In above-mentioned technical proposal, in step (3), when observing the growing state of seaweed seedling, throw the net upper surpass if there is whole
The seedling for crossing 50% is still pink or the rotten situation that bleaches, then removes whole seedling net, and supplement net is placed by side in situ.
The advantages of technical solution of the present invention, is:
(1) length for controlling porphyra haitanensis seedling, guarantees the relatively strong vigor after seedling is plunged into the commercial sea as far as possible.
(2) revolving speed and the time for controlling centrifugal dehydration, falling off for the seedling of 8-12cm is reduced to the greatest extent.
(3) water content of porphyra haitanensis seedling can be made to reach standard as early as possible by being centrifuged and drying the optimum organization of time,
Meet the natural temperature of exposure and dry of porphyra haitanensis seedling, maximum possible keeps the frond vigor of porphyra haitanensis.
(4) it can be harvested after porphyra haitanensis is grown 25 days, 75-90kg/ mus of fresh goods can be harvested.
Specific embodiment
The specific embodiment of technical solution of the present invention is described in detail below, but the present invention is not limited in being described below
Hold:
Embodiment 1:
It is cultivated in sunshine sea area:
(1) it dries and encapsulates:
On October 24th, 2018, it is transported to north cultivation area with refrigerator car from Zhejiang Dongtou by 100 porphyra haitanensis lace curtainings,
Porphyra haitanensis seedling length is 8-11cm.After transporting purpose, with clean sea water hydro-peening frond surface, remove the diatom of surface attachment
Etc. microalgaes and sludge etc., extract the tangleweeds such as most of sea lettuce green alga with hand.
Porphyra haitanensis lace curtaining is placed in super-magnum centrifuge and is dehydrated, the revolving speed of use is 180 turns/min, and the time is 20min, this
When weight be dehydrated fresh weight.In fair weather, porphyra haitanensis net is placed on the outdoor ventilation place of being protected from light and spreads out seedling net, is dried to
50% of dehydration fresh weight in text, the time is in 2.5h.The porphyra haitanensis lace curtaining for being up to requirement is installed with Polythene Bag, is emptied as far as possible
Sealing part, is then tamping with cord etc. by internal air.
(2) stored refrigerated:
Air-cooled for being first put in -30 DEG C cools to -20 DEG C in 4.5h, is then transferred between prolonged cold stores and saves, deposits
It is not compacted from each other when putting, storage time is 180 days.
(3) it thaws and plunges into the commercial sea:
By the end of April, on intertidal belt submarine temperature rise to 12 DEG C and it is 7 days continual and steady after, by the porphyra haitanensis net of low tempertaure storage
It transports to sea and is cultivated.Detailed process is as follows:
1. thawing rate is gradually promoted to -5 DEG C according to the heating rate of 1 DEG C/h.
2. porphyra haitanensis lace curtaining is transported to cultivation seashore in 2h together with polyethylene is packed, seaweed lace curtaining is hung in big low tide one
It cultivates on base.
3. the growing state of continuous observation seaweed seedling since second day rejected at the 7th day and does not recover to atropurpureus
Porphyra haitanensis seedling, have 2 porphyra haitanensis is more than that 50% seedling is still pink or bleaches rotten on the net, removes whole throw the net.
4. can be harvested after porphyra haitanensis is grown 25 days, can harvest four times, yield is 85kg/ mus of fresh goods
Examples detailed above is technical conception and technical characteristics to illustrate the invention, can not be limited with this of the invention
Protection scope.The equivalent transformation or modification that all essence according to the present invention is done, should all cover in protection scope of the present invention
Within.
Claims (9)
1. a kind of porphyra haitanensis cold net cultural method suitable for northern sea area, which comprises the following steps:
(1) it dries and encapsulates:
In mid or late October, north cultivation area is transported to refrigerator car from south by the lace curtaining for being attached with porphyra haitanensis seedling；Transport
To after purpose, the attachments such as larger miscellaneous algae are extractd with hand, then remove the diatom of surface attachment with clean sea water hydro-peening frond surface
And sludge；Then the lace curtaining for being attached with porphyra haitanensis seedling is placed in super-magnum centrifuge and is dehydrated, dewatered weight is that dehydration is fresh
Weight；The dewatered lace curtaining for being attached with porphyra haitanensis seedling is placed on outdoor, lace curtaining is spread out at ventilation lucifugal, is dried to that dehydration is fresh
The 47~52% of weight；The lace curtaining for being attached with porphyra haitanensis seedling for being up to requirement is installed with Polythene Bag, empties internal air,
Then sealing part is tamping with cord；
(2) stored refrigerated:
Extremely -15 DEG C~-22 DEG C of Polythene Bag fast cooling of lace curtaining will be equipped in step (1), then in the interior guarantor of low-temperature storage
It deposits 160~200 days；
(3) it thaws and plunges into the commercial sea:
At sea temperature rise to 11~13 DEG C and it is 7 days continual and steady after, lace curtaining stored refrigerated in step (2) is first thawed,
It is transported together with Polythene Bag to seashore after defrosting, lace curtaining is hung on cultivation base in big low tide one and carries out mariculture；From
The growing state for starting continuous observation seaweed seedling for second day rejected the porphyra haitanensis seedling for not recovering to atropurpureus at the 7th day,
Porphyra haitanensis fresh goods can be harvested after porphyra haitanensis is grown 25 days.
2. the method according to claim 1, wherein the length of porphyra haitanensis seedling is 8~12cm in step (1).
3. the method according to claim 1, wherein the revolving speed of super-magnum centrifuge is 150~200 in step (1)
Turn/min, dewatering time is 20min.
4. the method according to claim 1, wherein porphyra haitanensis children will be attached in fair weather in step (1)
The porphyra haitanensis lace curtaining of seedling is placed on outdoor, shines the dewatered porphyra haitanensis lace curtaining for being attached with porphyra haitanensis seedling between 2.5~4h
It does to the 47~52% of dehydration fresh weight.
5. the method according to claim 1, wherein the poly- second of lace curtaining will be equipped in step (1) in step (2)
Alkene bag fast cooling is to -15 DEG C~-22 DEG C of method are as follows: is first put in -25 DEG C~-30 DEG C air-cooled and cools down in 3~8h
It to -15 DEG C~-22 DEG C, is then transferred into prolonged cold and stores interior preservation, when storage not be compacted from each other.
6. method according to claim 1 or 5, which is characterized in that in step (2), the Polythene Bag equipped with lace curtaining is quick
It is cooled to -20 DEG C.
7. the method according to claim 1, wherein defrosting refers in step (3): according to the heating of 1 DEG C/h
Speed is gradually promoted to -5 DEG C, thaws at -5 DEG C.
8. the method according to claim 1, wherein the lace curtaining after defrosting exists together with Polythene Bag in step (3)
It is transported together within 4h to seashore.
9. the method according to claim 1, wherein in step (3), when observing the growing state of seaweed seedling,
Still it is pink or the rotten situation that bleaches on whole throw the net if there is the seedling for being more than 50%, then removes whole throw the net in situ
Place supplement net in side.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110972927A (en) * | 2019-11-19 | 2020-04-10 | 天津渤海水产研究所 | Method for cultivating porphyra yezoensis in northern overwintering |
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| CN206760584U (en) * | 2017-05-20 | 2017-12-19 | 宁波大学 | A kind of pretreatment unit for refrigerating porphyra haitanensis seedling curtain or planting vegetables |
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2019
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| CN101326906A (en) * | 2008-08-01 | 2008-12-24 | 集美大学 | Low temperature storage method of Porphyra haitanensis filament germplasm by encapsulation |
| CN101326905A (en) * | 2008-08-01 | 2008-12-24 | 集美大学 | Method for preserving Porphyra haitanensis young seedling at low-temperature |
| CN103563732A (en) * | 2013-11-25 | 2014-02-12 | 集美大学 | Porphyra haitanensis refrigeration net curtain exchanging cultivation method |
| CN104304427A (en) * | 2014-10-16 | 2015-01-28 | 宁波大学 | Fresh keeping method of porphyra haitanensis |
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| CN110972927A (en) * | 2019-11-19 | 2020-04-10 | 天津渤海水产研究所 | Method for cultivating porphyra yezoensis in northern overwintering |
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