CN102669020B - Seedling collection facility for rapana venosa factory seed culture - Google Patents
Seedling collection facility for rapana venosa factory seed culture Download PDFInfo
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- CN102669020B CN102669020B CN201210131848.9A CN201210131848A CN102669020B CN 102669020 B CN102669020 B CN 102669020B CN 201210131848 A CN201210131848 A CN 201210131848A CN 102669020 B CN102669020 B CN 102669020B
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- 241000543567 Rapana venosa Species 0.000 title description 2
- 238000011218 seed culture Methods 0.000 title 1
- 241000237858 Gastropoda Species 0.000 claims abstract description 53
- 238000000034 method Methods 0.000 abstract description 21
- 241000237502 Ostreidae Species 0.000 abstract description 14
- 235000020636 oyster Nutrition 0.000 abstract description 14
- 238000006243 chemical reaction Methods 0.000 abstract description 13
- 230000029052 metamorphosis Effects 0.000 abstract description 13
- 241001465754 Metazoa Species 0.000 abstract description 7
- 235000013305 food Nutrition 0.000 abstract description 5
- 230000000366 juvenile effect Effects 0.000 abstract description 4
- 238000009360 aquaculture Methods 0.000 abstract description 2
- 244000144974 aquaculture Species 0.000 abstract description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 6
- 241000237852 Mollusca Species 0.000 description 3
- 238000009395 breeding Methods 0.000 description 3
- 230000001488 breeding effect Effects 0.000 description 3
- 235000013372 meat Nutrition 0.000 description 3
- 230000004083 survival effect Effects 0.000 description 3
- 230000034994 death Effects 0.000 description 2
- 231100000517 death Toxicity 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 235000005911 diet Nutrition 0.000 description 2
- 230000001418 larval effect Effects 0.000 description 2
- 241000237519 Bivalvia Species 0.000 description 1
- 241000206751 Chrysophyceae Species 0.000 description 1
- 241000195493 Cryptophyta Species 0.000 description 1
- 241000143639 Monocystis Species 0.000 description 1
- 241000237536 Mytilus edulis Species 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 235000020639 clam Nutrition 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 230000037213 diet Effects 0.000 description 1
- 230000000378 dietary effect Effects 0.000 description 1
- 235000020638 mussel Nutrition 0.000 description 1
- 235000008935 nutritious Nutrition 0.000 description 1
- 230000003746 surface roughness Effects 0.000 description 1
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
- Y02A40/80—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in fisheries management
- Y02A40/81—Aquaculture, e.g. of fish
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Abstract
本发明涉及水产养殖的工厂化苗种生产，具体地说是一种脉红螺工厂化育苗的采苗设施及方法。采苗设施由表面粗糙的塑料波纹板和固定波纹板的支架组成，塑料波纹板平行固定在支架上的卡槽内，在卡槽连接杆相对的侧面捆扎与卡槽连接杆平行的绳索。采苗设施投放前要首先在塑料波纹板上附着牡蛎稚贝作为脉红螺幼虫食性转换和变态过程中的动物性饵料。当50％以上脉红螺幼虫发育到三螺层后期至四螺层初期时，在育苗池中以塑料波纹板呈多平面立体分层方式投放采苗设施，使脉红螺幼虫附着于附有牡蛎稚贝的塑料波纹板上，完成食性转换和变态过程，并进行稚螺中间培育。采用本发明可以使脉红螺幼虫在工厂化育苗中顺利完成食性转换和变态过程。
The invention relates to industrialized seedling production of aquaculture, in particular to a seedling picking facility and method for industrialized seedling raising of red snails. The seedling picking facility is made up of a plastic corrugated board with a rough surface and a support for fixing the corrugated board. The plastic corrugated board is fixed in parallel in the draw-in groove on the support, and the ropes parallel to the draw-in groove connecting rod are tied on the opposite side of the draw-in groove connecting rod. Before the seedling collection facilities are put in, the oyster spat should be attached to the plastic corrugated board as the animal bait during the food conversion and metamorphosis process of the red snail larvae. When more than 50% of the red snail larvae develop to the late stage of the third helix to the early stage of the fourth helix, put the seedling collection facilities in a multi-plane and three-dimensional layered manner with plastic corrugated plates in the seedling pond, so that the larvae of the red snail are attached to the attached The plastic corrugated board of oyster spat completes the process of food conversion and metamorphosis, and carries out intermediate cultivation of juvenile snails. Adopting the invention can make the red snail larvae successfully complete the process of food conversion and metamorphosis in industrial seedling cultivation.
Description
本申请是中国发明专利申请的分案申请，原申请的申请日：2010年10月29日，申请号：201010538128.5，发明创造名称：一种脉红螺工厂化育苗的采苗设施及方法，公开号：CN101986833A；按审查员于原申请案审查意见指出意见，现提出此分案申请。This application is a divisional application of the Chinese invention patent application. The application date of the original application: October 29, 2010, the application number: 201010538128.5, the name of the invention: a seedling picking facility and method for industrialized seedling cultivation of red snails, disclosed No.: CN101986833A; According to the examiner's comments on the original application, this divisional application is hereby filed.
技术领域 technical field
本发明涉及水产养殖的工厂化苗种生产，具体地说是一种脉红螺工厂化育苗的采苗设施。The invention relates to industrial seedling production of aquaculture, in particular to a seedling collection facility for industrial seedling cultivation of red snails.
背景技术 Background technique
脉红螺Rapana venosa，俗称“瓦螺”、“海螺”，属于软体动物门、腹足纲、骨螺科，红螺属，成体壳高可达11-12cm，我国渤海和黄海均有分布。其足部特别肥大，味道鲜美，营养丰富，甚为人们所喜食，经济价值高。近些年来，随着近海资源的下降和该品种商品畅销于国内外市场，其经济价值不断提高，目前活体价格为20～40元人民币/公斤。Rapana venosa, commonly known as "tile snail" and "conch snail", belongs to the phylum Mollusca, Gastropoda, Murexidae, and the genus Rupana venosa. The adult shell height can reach 11-12cm. It is distributed in the Bohai Sea and the Yellow Sea of my country. Its feet are particularly fat, delicious and nutritious, and it is very popular among people with high economic value. In recent years, with the decline of offshore resources and the popularity of this variety in domestic and foreign markets, its economic value has continued to increase. The current live price is 20-40 yuan/kg.
目前，脉红螺在我国渤海和黄海沿岸有很大的市场需求，从上世纪90年代开始，一些科研单位和育苗企业尝试进行人工育苗，但多为失败，出苗效率极低，还远未实现产业化规模，导致人工养殖无法大规模进行。At present, there is a great market demand for red snails in my country's Bohai Sea and the Yellow Sea coast. Since the 1990s, some scientific research institutes and seedling enterprises have tried to raise seedlings artificially, but most of them have failed, and the emergence efficiency is extremely low, which is far from being realized. Due to the scale of industrialization, artificial breeding cannot be carried out on a large scale.
目前，导致脉红螺苗种繁育技术没有过关的最主要因素是没有很好地解决脉红螺幼虫的食性转换问题。所谓食性转换是指脉红螺幼虫变态过程中需要由摄食单胞藻等植物性饵料转为摄食动物性饵料。食性转换是脉红螺发育过程中一个十分关键的阶段，大部分幼虫的死亡均发生在此发育阶段。在脉红螺工厂化育苗过程中，目前使用的动物性饵料大部分是双壳贝类(如蛤仔、牡蛎、贻贝等)的肉泥。使用双壳贝类肉泥作为动物性饵料极易造成水质败坏，导致幼虫大规模死亡，使育苗失败。At present, the most important factor leading to the failure of the seedling breeding technology of the red snails is that the feeding habits of the larvae of the red snails have not been well resolved. The so-called dietary conversion refers to the need to switch from eating plant-based bait such as Monocystis algae to eating animal-based bait during the metamorphosis process of the red snail larvae. Diet conversion is a very critical stage in the development of snails, and most of the larval deaths occur during this developmental stage. In the industrial seedling raising process of snails, most of the animal bait currently used is the meat paste of bivalve molluscs (such as clams, oysters, mussels, etc.). Using bivalve mollusc meat paste as animal bait can easily cause water quality to deteriorate, lead to mass death of larvae, and cause seedling failure.
发明内容 Contents of the invention
本发明的目的在于提供一种脉红螺工厂化育苗的采苗设施及方法，解决脉红螺幼虫的食性转换和变态及稚螺中间培育问题。The object of the present invention is to provide a seedling picking facility and method for industrial seedling cultivation of red snails, so as to solve the problems of feeding habits conversion and metamorphosis of red snail larvae and intermediate cultivation of juvenile snails.
为了实现上述目的，本发明的技术方案是：In order to achieve the above object, technical scheme of the present invention is:
一种脉红螺工厂化育苗的采苗方法，由波纹板和固定波纹板的支架制成采苗设施，采苗设施投放前，在波纹板上附着牡蛎稚贝，作为脉红螺幼虫食性转换和变态过程中的动物性饵料，当50％以上脉红螺幼虫发育到三螺层后期至四螺层初期时，在育苗池中以波纹板呈多平面立体分层方式投放采苗设施，使脉红螺幼虫附着于附有牡蛎稚贝的波纹板上，完成食性转换和变态过程，并进行稚螺中间培育。A method for picking seedlings of red snail industrial seedlings. The seedling picking facilities are made of corrugated plates and brackets for fixing the corrugated plates. And the animal bait in the metamorphosis process, when more than 50% of the red snail larvae develop to the late stage of the third helix to the early stage of the fourth helix, put the seedling collection facilities in the nursery pond in a multi-plane three-dimensional layered manner with corrugated plates, so that The snail larvae attach to the corrugated plate with oyster spat, complete the food conversion and metamorphosis process, and carry out intermediate cultivation of juvenile snails.
所述的脉红螺工厂化育苗的采苗方法，波纹板上牡蛎稚贝的密度为5～20个/cm2，牡蛎稚贝大小为壳长0.5～2.0mm。According to the seedling picking method for industrialized seedling cultivation of snails, the density of oyster spat on the corrugated board is 5-20/cm 2 , and the size of the oyster spat is 0.5-2.0 mm in shell length.
所述的脉红螺工厂化育苗的采苗方法，脉红螺工厂化育苗的适宜应用条件为：水温18～28℃，盐度为25～35‰，pH值为7.0～8.5，脉红螺幼虫培育密度为0.1～0.3个/ml。The seedling picking method for the industrialized seedling cultivation of the red snail, the suitable application conditions for the industrialized seedling cultivation of the red snail are: water temperature 18-28°C, salinity 25-35‰, pH value 7.0-8.5, red snail The density of larvae is 0.1-0.3/ml.
一种脉红螺工厂化育苗的采苗设施，采苗设施设有波纹板和固定波纹板的支架，固定波纹板的支架是立方体，波纹板平行固定在支架的卡槽内。The utility model relates to a seedling-picking facility for industrial seedling cultivation of snails. The seedling-picking facility is provided with a corrugated plate and a bracket for fixing the corrugated plate. The bracket for fixing the corrugated plate is a cube, and the corrugated plate is parallelly fixed in the slot of the bracket.
所述的脉红螺工厂化育苗的采苗设施，波纹板中，波纹板长度为50～100cm，波纹板宽度为50～100cm，波纹板厚度为0.05～0.15cm，波纹板的波纹均匀分布，波纹板波高为1.0～2.0cm，波纹板上分布有直径2.0～4.0cm的孔，波纹板上的孔距为10.0～30.0cm。In the seedling picking facility for industrialized seedling cultivation of snails, among the corrugated plates, the length of the corrugated plate is 50-100 cm, the width of the corrugated plate is 50-100 cm, the thickness of the corrugated plate is 0.05-0.15 cm, and the corrugated plates are evenly distributed. The wave height of the corrugated plate is 1.0-2.0cm, and there are holes with a diameter of 2.0-4.0cm distributed on the corrugated plate, and the distance between the holes on the corrugated plate is 10.0-30.0cm.
所述的脉红螺工厂化育苗的采苗设施，支架长度比波纹板长度大0.5～1.0cm，支架宽度比波纹板宽度大0.5～1.0cm，支架相对的两个侧面有固定波纹板的卡槽。The seedling-picking facility for industrialized seedling cultivation of the snail snail, the length of the support is 0.5-1.0 cm larger than the length of the corrugated plate, the width of the support is 0.5-1.0 cm larger than the width of the corrugated plate, and there are clips for fixing the corrugated plate on the two opposite sides of the support groove.
所述的脉红螺工厂化育苗的采苗设施，在支架一个侧面分别靠近立边I和立边II位置，竖向对称设置一对卡槽连接杆；与所述支架一个侧面相对的支架另一侧面立边III和立边IV中，立边I与立边IV位于同侧，立边II与立边III位于同侧；在靠近立边I的卡槽连接杆与立边IV之间搭接一侧卡槽，在靠近立边II的卡槽连接杆与立边III之间搭接另一侧卡槽。The seedling-picking facilities for industrialized seedling cultivation of the snail snails are provided with a pair of slotted connecting rods arranged vertically and symmetrically on one side of the support near the vertical edge I and the vertical edge II respectively; Among the vertical edge III and the vertical edge IV on one side, the vertical edge I and the vertical edge IV are located on the same side, and the vertical edge II and the vertical edge III are located on the same side; Connect the card slot on one side, and connect the card slot on the other side between the card slot connecting rod close to the vertical side II and the vertical side III.
所述的脉红螺工厂化育苗的采苗设施，两侧的卡槽分别与其外侧的支架侧面之间形成夹角，所述卡槽外侧的支架侧面设有防止波纹板滑落的栏杆，栏杆竖向设置。In the seedling picking facilities for industrialized seedling cultivation of the snail, the slots on both sides form an included angle with the side of the bracket on the outside, and the side of the bracket outside the slot is provided with railings to prevent the corrugated board from slipping, and the railings are vertical to the settings.
所述的脉红螺工厂化育苗的采苗设施，立边I与靠近立边I的卡槽连接杆之间距离为3.0～5.0cm，卡槽厚度比波纹板波高大0.1～0.2cm，波纹板之间距离为2.0～20.0cm。In the seedling-picking facility for industrialized seedling cultivation of the snail snail, the distance between the vertical side I and the connecting rod of the slot close to the vertical side I is 3.0-5.0 cm, and the thickness of the slot is 0.1-0.2 cm larger than the wave height of the corrugated plate. The distance between the boards is 2.0-20.0 cm.
所述的脉红螺工厂化育苗的采苗设施，波纹板装配完成后，在卡槽连接杆相对的侧面捆扎与卡槽连接杆平行的绳索。In the seedling-picking facility for industrialized seedling cultivation of snails, after the corrugated boards are assembled, ropes parallel to the connecting rods in the grooves are tied on the side opposite to the connecting rods in the grooves.
本发明与现有技术相比具有如下优点：Compared with the prior art, the present invention has the following advantages:
1.本发明用牡蛎稚贝作为脉红螺幼虫食性转换和变态过程中的动物性饵料，改变了以往直接向脉红螺幼虫培育池中投放双壳贝类肉泥导致水质恶化的不良后果，幼虫成活率高。1. The present invention uses oyster spat as the animal bait in the feeding habit conversion and metamorphosis process of the red snail larvae, which has changed the adverse consequences of directly putting in the bivalve meat mud in the red snail larvae cultivation pond and causing the deterioration of water quality in the past, The larval survival rate is high.
2.本发明采苗设施中的塑料波纹板呈多平面立体分层结构分布，采苗设施本身就作为幼虫食性转换和变态时期的培育载体，可以充分利用空间。2. The plastic corrugated plates in the seedling-picking facilities of the present invention are distributed in a multi-plane three-dimensional layered structure, and the seedling-picking facilities themselves can make full use of the space as the cultivation carrier for the larva feeding habits conversion and metamorphosis period.
3.本发明采苗设施的支架上设有卡槽，可以方便地固定塑料波纹板，并根据需要方便地调节塑料波纹板间距。3. The bracket of the seedling picking facility of the present invention is provided with a card slot, which can conveniently fix the plastic corrugated board, and conveniently adjust the distance between the plastic corrugated boards as required.
4.利用本发明进行脉红螺工厂化育苗，幼虫可顺利完成食性转换和变态过程，大幅度提高脉红螺幼虫在食性转换和变态过程中的成活率，成活率比传统方法提高70％以上。4. Utilize the present invention to carry out industrialized seedling cultivation of red snails, the larvae can successfully complete the feeding habits conversion and metamorphosis process, greatly improve the survival rate of red snail larvae in the feeding habits conversion and metamorphosis process, and the survival rate is increased by more than 70% compared with traditional methods .
附图说明 Description of drawings
图1、图2、图3为本发明采苗设施的结构示意图。其中，Fig. 1, Fig. 2, Fig. 3 are the structural representations of seedling picking facility of the present invention. in,
图1为采苗设施中的塑料波纹板示意图。Fig. 1 is the schematic diagram of the plastic corrugated board in the seedling picking facility.
图2为采苗设施中的支架示意图。Fig. 2 is a schematic diagram of supports in the seedling picking facility.
图3为采苗设施装配成型后的结构示意图。Fig. 3 is a schematic structural view of the seedling picking facility after assembly.
图中，1、波纹板长度；2、波纹板宽度；3、孔；4、孔距；5、波纹板的波纹；6、支架长度；7、支架宽度；8、支架高度；9、卡槽；10、栏杆；11、卡槽连接杆；12、卡槽连接杆与支架最近夹角处距离；13、波纹板；14、波纹板波高；15、牡蛎稚贝；16、与卡槽连接杆平行的绳索；17、波纹板之间距离；18、立边I；19、立边II；20、立边III；21、立边IV。In the figure, 1. The length of the corrugated plate; 2. The width of the corrugated plate; 3. The hole; 4. The hole distance; 5. The corrugation of the corrugated plate; 6. The length of the bracket; ;10, railing; 11, slot connecting rod; 12, distance between the slot connecting rod and the bracket at the nearest angle; 13, corrugated board; 14, corrugated board wave height; 15, oyster spat; 16, connecting rod with the slot Parallel ropes; 17, distance between corrugated plates; 18, standing edge I; 19, standing edge II; 20, standing edge III; 21, standing edge IV.
具体实施方式 Detailed ways
本发明脉红螺工厂化育苗的采苗方法，具体过程如下：The method for picking seedlings of red snail industrialized seedling cultivation of the present invention, concrete process is as follows:
由表面粗糙的塑料波纹板和固定波纹板的支架制成采苗设施，采苗设施投放前，在塑料波纹板上附着牡蛎稚贝，作为脉红螺幼虫食性转换和变态过程中的动物性饵料，塑料波纹板上牡蛎稚贝的密度为5～20个/cm2，牡蛎稚贝大小为壳长0.5～2.0mm。当50％以上脉红螺幼虫发育到三螺层后期至四螺层初期时，在育苗池中以塑料波纹板呈多平面立体分层方式投放采苗设施，以充分利用水体，使脉红螺幼虫附着于附有牡蛎稚贝的塑料波纹板(塑料波纹板的表面粗糙度以能附着牡蛎稚贝为准)上，完成食性转换和变态过程，并进行稚螺中间培育。The seedling picking facilities are made of rough plastic corrugated boards and brackets that fix the corrugated boards. Before the seedling picking facilities are released, oyster spat are attached to the plastic corrugated boards as animal bait during the feeding habits conversion and metamorphosis of the snail larvae. , the density of the oyster spat on the plastic corrugated board is 5-20/cm 2 , and the size of the oyster spat is 0.5-2.0 mm in shell length. When more than 50% of the red snail larvae develop to the late stage of the third helix to the early stage of the fourth helix, put the seedling collection facilities in a multi-plane and three-dimensional layered manner with plastic corrugated plates in the seedling pond, so as to make full use of the water body and make the red snail The larvae attach to the plastic corrugated board with the oyster spat attached (the surface roughness of the plastic corrugated board is subject to the ability to attach the oyster spat), complete the food conversion and metamorphosis process, and carry out intermediate cultivation of juvenile snails.
本发明脉红螺工厂化育苗的适宜应用条件为：水温18～28℃，盐度为25～35‰，pH值为7.0～8.5，脉红螺幼虫培育密度为0.1～0.3个/ml。The suitable application conditions for the industrial seedling cultivation of the snails of the present invention are as follows: the water temperature is 18-28°C, the salinity is 25-35‰, the pH value is 7.0-8.5, and the larvae density of the snails is 0.1-0.3/ml.
如图1-3所示，本发明中采苗设施由表面粗糙的塑料波纹板和固定波纹板的支架组成，具体结构如下：As shown in Figure 1-3, among the present invention, the seedling-picking facility is made up of the rough plastic corrugated board and the support of fixed corrugated board, and specific structure is as follows:
塑料波纹板13中，塑料波纹板长度1为50～100cm，塑料波纹板宽度2为50～100cm，塑料波纹板厚度为0.05～0.15cm，波纹板的波纹5均匀分布，塑料波纹板波高14为1.0～2.0cm，塑料波纹板13上分布有直径2.0～4.0cm的孔3，塑料波纹板13上的孔距4为10.0～30.0cm。所用采苗设施中的塑料波纹板13，在育苗池中呈多平面立体分层结构分布(图1)。In the plastic
固定塑料波纹板13的支架是立方体，支架长度6比塑料波纹板长度1大0.5～1.0cm，支架宽度7比塑料波纹板宽度2大0.5～1.0cm，支架高度8比塑料波纹板的长或宽大0.5～1.0cm，支架相对的两个侧面有固定塑料波纹板13的卡槽9(图2)。The bracket for fixing the plastic
在支架一个侧面分别靠近立边(立边I18和立边II19)位置，竖向对称设置一对卡槽连接杆11；与所述支架一个侧面相对的支架另一侧面两个立边(立边III20和立边IV21)中，立边I18与立边IV21在同侧，立边II19与立边III20在同侧；在靠近立边I18的卡槽连接杆11与立边IV21之间搭接一侧卡槽9，在靠近立边II19的卡槽连接杆11与立边III20之间搭接另一侧卡槽9，两侧的卡槽9为多个，相对设置。从而，两侧的卡槽9分别与其外侧的支架侧面之间形成一定的夹角，所述卡槽9外侧的支架侧面设有防止波纹板滑落的栏杆10，栏杆10竖向设置。立边I18与靠近立边I18的卡槽连接杆11之间距离(卡槽连接杆与支架最近夹角处距离12)为3.0～5.0cm，卡槽厚度比波纹板波高14大0.1～0.2cm。塑料波纹板13平行固定在支架的卡槽9内，塑料波纹板之间距离17为2.0～20.0cm，在塑料波纹板13上附着牡蛎稚贝15。塑料波纹板13装配完成后，在卡槽连接杆11相对的侧面捆扎与卡槽连接杆11平行的绳索16，防止塑料波纹板13滑落(图3)。Close to the vertical edge (standing edge I18 and vertical edge II19) position respectively on one side of the support, a pair of draw-in slot connecting rods 11 are arranged vertically symmetrically; III20 and vertical edge IV21), vertical edge I18 and vertical edge IV21 are on the same side, vertical edge II19 and vertical edge III20 are on the same side; between the draw-in groove connecting rod 11 near vertical edge I18 and vertical edge IV21 lap a The side draw-in
以下给出以脉红螺幼虫为例的几个典型实施例，但本发明并不仅仅局限在以下实施例中。Several typical embodiments are given below taking the larvae of the red snail as an example, but the present invention is not limited only to the following embodiments.
上述实施例的实验条件为：水温：23～24℃，盐度：30～32‰，pH值：7.6～7.8，幼虫培育密度：0.1～0.2个/ml，植物性饵料投喂金藻，采苗设施投放时机为当65％脉红螺幼虫发育到三螺层后期至四螺层初期(壳长800～1200μm)时；塑料波纹板长×宽×厚为60cm×60cm×0.10cm；波纹板上分布有直径3cm的孔，孔距15cm。The experimental conditions of the above examples are: water temperature: 23-24°C, salinity: 30-32‰, pH value: 7.6-7.8, larvae breeding density: 0.1-0.2/ml, plant-based bait fed with golden algae, harvested The timing of putting seedling facilities is when 65% of the red snail larvae develop to the late stage of the third helix to the early stage of the fourth helix (shell length 800-1200 μm); Holes with a diameter of 3 cm are distributed on the top, and the distance between the holes is 15 cm.
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| CN103404455B (en) * | 2013-07-22 | 2015-04-15 | 中国科学院海洋研究所 | Novel adherence for industrial seedling raising of rapana venosa and use method of novel adherence |
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| CN103766256B (en) * | 2014-01-13 | 2015-09-30 | 中国科学院南海海洋研究所 | A kind of forecasting procedure improving the natural efficiency of collecting seedling of Hong Kong oyster |
| JP6427030B2 (en) * | 2014-02-28 | 2018-11-21 | ヤンマー株式会社 | Method for aquaculture of aquaculture organisms and aquaculture facility therefor |
| CN103843713A (en) * | 2014-03-06 | 2014-06-11 | 大连海洋大学 | High-density neptunea cumingi crosse larva breeding device convenient to carry out feeding |
| CN104285859B (en) * | 2014-10-13 | 2016-05-04 | 中国科学院海洋研究所 | A kind of adherance and supporting device of collecting seedling thereof of producing oyster monomer seed |
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