CN116019034A - Overwintering cultivation method for cuttlefish parents - Google Patents
Overwintering cultivation method for cuttlefish parents Download PDFInfo
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Abstract
The invention discloses a method for overwintering cultivation of a cuttlefish with tiger spots, which comprises the steps of building a cuttlefish overwintering system, selecting cuttlefish with tiger spots, putting cuttlefish with tiger spots into the overwintering system, and daily cultivation and management of cuttlefish with tiger spots. The overwintering cultivation system for the cuttlefish parents comprises a preheating pool, a water inlet device, a cultivation pool, a temperature control device, a light control device, an air supplementing device and a water outlet device. The overwintering cultivation method for the cuttlefish with tiger spots can obviously improve the survival rate, spawning quantity and fertilized egg quality of the cuttlefish with tiger spots, effectively solve the problem of overwintering of the cuttlefish with tiger spots, and is beneficial to large-scale cultivation of the cuttlefish with tiger spots.
Description
Technical Field
The invention belongs to the technical field of agricultural mariculture, and particularly relates to an overwintering cultivation method for cuttlefish parents.
Background
The Sepia (Sepia haraonis) belongs to the phylum Mollusca (mollus ca), the class Cephalopoda (Cephalopoda), the class decapala (decapona), the family Sepiidae (Sepiidae), the genus Sepia (Sepia), and is distributed in the ocean and the pacific ocean areas ranging from 30 DEG S to 35 DEG N, 30 DEG E to 140 DEG W, from shallow coasts to ocean areas at a water depth of 100 m. Is mainly distributed in offshore areas of south China sea and is an important fishery fishing object in China. The spawning period is 3-5 months along coasts in south China sea, the water temperature range of the spawning period is 21-25 ℃, the spawning water depth of the coasts is 5-20 m, the individual size is large, the taste is delicious, the protein content is high, and the method is deeply favored by wide consumers. Since the 80 s of the 20 th century, natural resources of cuttlefish are greatly destroyed and degenerated due to excessive fishing and deterioration of ecological environment in the sea area. In order to recover, develop and utilize cuttlefish resources, the research on breeding and cultivation of cuttlefish has attracted great attention from relevant scholars and fishery departments at home and abroad. In recent years, the research on the cultivation technology of sepia esculenta and sepia mandshurica is mainly focused, but the sepia mandshurica is cultivated after 3 months, the quality of the sepia mandshurica can only reach 50-80 g/sepia mandshurica, and the sepia mandshurica is frailty and death after copulation and spawning, which seriously contusion the enthusiasm of farmers.
As early as the early era of this world, successful propagation of five-generation cuttlefish in the laboratory has been reported (Minton et al, 2001). The domestic research starts late, and the subject group finds that the squid with tiger spots has the characteristics of high bait conversion rate, high growth speed (the squid can reach the specification of commercial squid after 3 months of cultivation, more than 500 g), strong disease resistance, easy acceptance of fresh frozen baits and the like in the production practice process, and is also asexually mature after continuous cultivation for 6 months, thus being a famous and excellent new variety for scale cultivation of cephalopods. In addition, the artificial breeding process finds that the squid with tiger spots has short growth cycle and is produced in one year, and the acquisition of parents with excellent body quality and large specification becomes the bottleneck breaking through the whole artificial breeding. Therefore, in order to realize full artificial breeding and large-scale cultivation, ensuring successful overwintering of parents is necessary to obtain enough fertilized eggs.
Disclosure of Invention
Aiming at the defects and shortcomings of the prior art, the technical problem to be solved by the invention is to provide the overwintering cultivation method for the squid parent, which improves the survival rate, spawning quantity and fertilized egg quality of the squid parent by controlling the temperature and illumination in the cultivation process and enhancing the nutrition.
In order to solve the problems, the invention provides a method for overwintering cultivation of cuttlefish parents, which comprises the following steps:
s1, building an overwintering system of cuttlefish tiger spots: selecting a construction position of the overwintering system, and then constructing the tiger spot cuttlefish overwintering system at the selected position;
s2, selecting a squid overwintering parent: selecting female parent and male parent, and controlling the ratio of female parent to male parent to be 2:1-3:1;
s3, putting the squid overwintering parents of tiger spots: putting the parent selected in the step S2 into the system constructed in the step S1, wherein the putting density is 5-7 parents/m 2 ；
S4, daily cultivation and management of cuttlefish tiger spots: including feeding, water quality control, water temperature control, illumination control and cleaning control.
Compared with the prior art, according to the breeding habit of cuttlefish, namely male and female, and the common robbing mating right in the mating process, the ink-jet phenomenon is easy to occur among male individuals, and the ink-jet phenomenon caused by the fight of the male individuals is avoided by controlling the size of the parents and the proportion of the female parents to the male parents to be 2:1-3:1, so that the physiological states of other parents are influenced due to the fact that the fight occurs among the male individuals, and the parents are more suitable for survival and spawning; secondly, because the sepia tiger is a benthic species, has field habit, high density, easy fight casualties, low density and unfavorable large-scale cultivation, the stocking density of the sepia tiger is 5-7 sepia tiger/m 2 Not only is favorable for the survival of the cuttlefish with tiger spots, but also is suitable for large-scale cultivation. The invention also discloses a method for controlling the water quality, the temperature, the illumination and the nutrition of the growth environment of the squid with tiger spots by constructing an overwintering culture system suitable for the squid with tiger spots to overwinter, so that the squid with tiger spots is always in the environment suitable for growth, and the survival rate, the spawning quantity and the fertilized egg quality of the parent squid with tiger spots in the overwintering period can be obviously improved.
Preferably, in the method for overwintering cultivation of cuttlefish parents, the cuttlefish overwintering system comprises:
a cultivating pool, a water inlet device, a preheating pool, a temperature control device, a light control device, an air charging device and a water discharging device,
the preheating pond is connected with the water inlet device, the water inlet device is connected with the water inlet of the cultivation pond, the water draining device is connected with the water outlet of the cultivation pond, the cultivation pond comprises a pond wall, a pond bottom and a pond top, the temperature control device is arranged in the pond wall of the cultivation pond, the light control device is arranged above the cultivation pond, and the air charging device is arranged at the bottom of the cultivation pond.
The preheating pond is arranged on the cuttlefish breeding system, so that the water inlet temperature entering the breeding pond can be better controlled, the temperature of the cuttlefish growing environment can be controlled through the temperature control device, the cuttlefish growing environment is beneficial to the cuttlefish growing in winter, the water surface illumination intensity in the breeding pond is controlled through the light control device, and the gonad development and maturation of the cuttlefish can be promoted.
Preferably, in the overwintering cultivation method of the cuttlefish parent, the temperature control device is an electric heater, and the distance between the temperature control device and the inner surface of the cultivation pool wall is 10cm-15cm. An electric heater is adopted as a temperature control device, so that the operation is simple, convenient and easy to implement; the temperature control device is arranged at a position 10cm-15cm away from the inner surface of the tank wall, so that heat generated by the heater can be effectively transferred into the cultivation tank, and the squid with tiger spots can be prevented from being scalded due to the fact that the squid with tiger spots bumps onto the heater to a certain extent.
Preferably, in the overwintering cultivation method of the cuttlefish parent, the light control device is an LED lamp tube, and the distance between the light control device and the upper edge of the cultivation pool wall is 1.5m. The light-emitting diode (LED) lamp tube is adopted for illumination under the condition of insufficient natural illumination, so that the gonad development and maturation of the cuttlefish with tiger spots can be achieved.
Preferably, in the method for overwintering cultivation of cuttlefish parents, the cuttlefish overwintering system further comprises a plurality of egg attaching bases for collecting fertilized eggs of cuttlefish, and the egg attaching bases are arranged at a position 30cm away from the bottom of the cultivation pool. The egg attaching base is arranged at a position 30cm away from the bottom of the culture pond, so that fertilized eggs can be collected and the influence on the movement of the squid tiger spots can be avoided.
Preferably, in the overwintering cultivation method of the cuttlefish parent, the feeding comprises a daily feeding step and a nutrition strengthening step, wherein the daily feeding step is feeding at a speed of 7:00 a.m. and a speed of 4:00 a.m. each day, and the feeding bait is at least one selected from ice fresh meretrix, small yellow croaker and prawn; the nutrition fortification step is to conduct nutrition fortification feeding at the afternoon of 17:00 a day, and the nutrition fortification bait is at least one of sand worm and penaeus vannamei boone.
The sargassum horneri contains rich amino acids and microelements (zinc, copper, manganese, iron, calcium and the like) and has remarkable effect of promoting the gonadal development of parents. Moreover, the cuttlefish with tiger spots enjoys eating crustaceans, and the fresh and alive penaeus vannamei not only meets the growth and development requirements of the penaeus vannamei, but also can improve the eating interests.
Preferably, in the method for cultivating the parent squid with tiger spots in winter, the water quality control comprises a pretreatment step of water for cultivation and a water quality maintenance step in the cultivation process, wherein the pretreatment step of water for cultivation is to take a certain amount of natural seawater, and the natural seawater is added into a squid with tiger spots in winter after precipitation, sand filtration and bolting-silk bag filtration; the water quality maintenance step in the cultivation process comprises the following steps: after each bait feeding for 1h, the residual bait at the bottom of the pond and the cuttlefish excrement are removed by a dip net; once daily, water is fed in the morning, and the water quantity accounts for 30% -50% of the total water quantity of the squid overwintering system; controlling the salinity of water for culturing in the wintering system of cuttlefish with pH of 8.0-8.5 and dissolved oxygen not lower than 6mg/L.
The residual bait and cuttlefish excrement at the bottom of the pond are removed by the dip net, so that the water quality can be maintained, and the stink cuttlefish skin caused by bone, frontal thorns and the like remained in the bait fish and shrimp can be prevented from being infected. By controlling the water inlet temperature in the water changing process, ink jetting caused by the discomfort of cuttlefish and water pollution caused by overlarge abrupt change amplitude of the water temperature in the cultivation pool can be prevented.
Preferably, in the overwintering cultivation method of the cuttlefish parent body, the water temperature control step comprises a water inlet temperature control step and a water temperature control step in a cultivation pond, wherein the water inlet temperature control step is to control the water inlet temperature entering the cultivation pond to be 22-24 ℃ through the preheating pond; the water temperature control step in the cultivation pool is to control the water temperature in the cultivation pool to be kept at 22-24 ℃ through the temperature control device.
The squid is a warm water species, and does not ingest at a temperature lower than 18 ℃, so that the temperature of water in a cultivation pool is controlled to be 22-24 ℃, and the temperature of water entering the cultivation pool is controlled to prevent the squid from being uncomfortable due to overlarge fluctuation of water temperature.
Preferably, in the overwintering cultivation method of the cuttlefish parents, the light control device is used for controlling the water surface illumination intensity of the cultivation water in the cultivation pond to be 300lux-500lux. The light irradiation can promote the gonad development and maturation of the squid tiger spots and is beneficial to spawning.
Preferably, in the overwintering cultivation method of the cuttlefish parent body, the cleaning control comprises a disinfection treatment step and a pool pouring treatment step, wherein the disinfection treatment step comprises the steps of disinfecting a cultivation pool and a preheating pool by using bleaching powder before using, thoroughly disinfecting by using sodium hypochlorite, and cleaning by using cultivation water; the step of pool-pouring treatment is to pour the pool once every 15-20 days during the overwintering period.
The preheating pond and the cultivation pond are disinfected before use, so that bacteria or viruses carried in the preheating pond and the cultivation pond can be prevented from infecting the parent of the cuttlefish tiger; the pond is poured once every 15-20 days during the overwintering period, which can prevent the accumulation of residual baits and excreta at the bottom of the pond, and the bacteria, parasites and the like from breeding, thereby being beneficial to keeping the bottom of the pond clean.
By adopting the overwintering cultivation method and the cultivation system for the squid with tiger spots, the survival rate of the squid with tiger spots reaches more than 86 percent, the average spawning quantity of each female squid with tiger spots can reach 2523, and the survival rate, spawning quantity and fertilized egg quality of the squid with tiger spots in the overwintering period are improved.
Drawings
FIG. 1 is a schematic diagram of a system for overwintering a parent of cuttlefish tiger in an embodiment of the invention;
reference numerals illustrate:
1-cultivation pool, 2-water inlet device, 3-preheating pool, 4-temperature control device, 5-light control device, 6-aerating device, 7-water draining device, 8-protection net 8, 9-white plastic film, 10-egg attaching base, 11-pool wall, 12-pool bottom and 13-pool top.
Detailed Description
In order that the above-recited objects, features and advantages of the present invention will become more apparent, a more particular description of embodiments of the invention will be rendered by reference to specific embodiments thereof which are illustrated in the appended drawings. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
The embodiment discloses a method for overwintering cultivation of cuttlefish parents, which comprises the following steps:
s1, building an overwintering system of cuttlefish tiger spots: firstly, selecting a construction position of the overwintering system, and then constructing the tiger spot cuttlefish overwintering system at the selected position;
s2, selecting a squid overwintering parent: selecting female parent and male parent according to parent size, and controlling the ratio of female parent to male parent to be 2:1-3:1;
s3, putting the squid overwintering parents of tiger spots: putting the parent selected in the step S2 into the system constructed in the step S1, wherein the putting density is 5-7 parents/m 2 ；
S4, daily cultivation and management of cuttlefish tiger spots: including feeding, water quality control, water temperature control, illumination control and cleaning control.
According to the breeding habit of cuttlefish, namely male and female, and the fact that the mating process is often accompanied by robbing mating rights, the ink jet phenomenon is easy to occur among male individuals, and the influence on the physiological states of other parents due to the ink jet caused by the fight among the male individuals is avoided by controlling the sizes of the parents and the proportion of female and male parents to be 2:1-3:1, so that the parents are more suitable for survival and spawning; secondly, because the sepia tiger is a benthic species, has field habit, high density, easy fight casualties, low density and unfavorable large-scale cultivation, the stocking density of the sepia tiger is 5-7 sepia tiger/m 2 Not only is favorable for the survival of the cuttlefish with tiger spots, but also is suitable for large-scale cultivation. The invention can effectively control the water quality, the temperature, the illumination and the nutrition of the growth environment of the squid with tiger spots by constructing the overwintering culture system suitable for the squid with tiger spots to overwinter, so that the squid with tiger spots is always in the environment suitable for growth, and the squid with tiger spots can be obviously improvedThe survival rate, spawning quantity and fertilized egg quality of the parent in the overwintering period can reach more than 86%, and the average spawning quantity of each female squid can reach 2523.
Referring to FIG. 1, the squid parent overwintering system disclosed in this example is located in an offshore water quality optimum area. The squid overwintering system comprises: a cultivation pool 1, which comprises a pool wall 11, a pool bottom 12 and a pool top 13, and is used for cultivating the cuttlefish tiger spots; a water inlet device 2 for inputting water for cultivation; the preheating pool 3 is used for preheating the cultivation water input by the water inlet device 2; a temperature control device 4 for controlling the temperature in the incubation pool 1; a light control device 5 for controlling the illumination in the cultivation pond 1; an inflator 6 for adding oxygen into the culture pond 1; and a drainage device 7 for draining the cultivation water in the cultivation pond 1. The preheating pond is connected with the water inlet device, the water inlet device is connected with the water inlet of the cultivation pond, the water outlet device is connected with the water outlet of the cultivation pond, the cultivation pond comprises a pond wall, a pond bottom and a pond top, the temperature control device is arranged in the pond wall of the cultivation pond, the light control device is arranged above the cultivation pond, and the air charging device is arranged at the bottom of the cultivation pond.
As shown in the figure 1, the cultivation pool 1 is square, the pool depth is 1.8-2.0 m, the pool wall 11 is provided with depth scale marks, and the area of the pool bottom 12 is about 30m 2 The area of the bottom 12 is not easy to be too large, which is not beneficial to controlling the temperature of the cultivation pool 1. The cultivating pool top 13 is made of glass fiber reinforced plastic, the cultivating pool top 13 can further adopt a black sunshade net to shade light, the cultivating pool 1 is continuously built and provided with a water inlet device 2 and a water draining device 7, meanwhile, a workshop of the cultivating pool 1 is provided with a preheating pool 3, and the preheating pool 3 can be matched with the water inlet device 2 for use. Bleaching powder (80-100 g/m) 3 ) Sterilizing and then using sodium hypochlorite (40-50 ml/m) 3 ) Thoroughly disinfecting, and washing for reuse.
Referring to fig. 1, in this embodiment, the temperature control device 4 is an electric heater, in this embodiment, two grooves are provided in the middle of two opposite side walls of the cultivation pool 1, each groove is provided with 3 rows of upper, middle and lower heaters, the electric heaters are fixed in parallel at a position 10cm-15cm away from the inner surface of the wall 11 of the cultivation pool, the power of each row of heaters is not lower than 800W, and the area of the electric heater on the wall 11 occupies 40% of the area of the wall 11; meanwhile, a protective net 8 is fixed at a position 20cm away from the electric heater to prevent a parent from touching the electric heater to burn; meanwhile, the pool surface is covered by a white plastic film 9 for heat preservation, and the pool surface is pulled into a groined shape by a nylon rope for supporting the plastic film.
Referring to fig. 1, in this embodiment, the light control device 5 is an LED lamp, and is installed at a position 2.5m above the water surface in the cultivation pool 1, so as to control the illumination intensity of the water surface to 300lux-500lux; the LED lamp tube is adopted for illumination under the condition of insufficient natural illumination, and the illumination is an important ecological factor for promoting the gonad development and maturation of the cuttlefish tiger spots. In this embodiment, the air charging devices 6 are uniformly distributed at the bottom of the cultivation pool 1, the air charging adopts a bottom continuous oxygenation mode, and the air stones and the air pipes are used for air charging, wherein the arrangement density of the air stones is 0.5 pieces/m 2 The height of the gas stone from the bottom 12 of the pool is 10cm; the inflation is beneficial to heat transfer, and the heating effect is better; the water temperature starts to drop in the last ten days of 12, which is also the overwintering time of the squid tiger spots. The squid is warm water species, does not ingest at a temperature lower than 18 ℃, and requires a water temperature of more than 22 ℃ during overwintering. Therefore, the heat preservation measure is particularly important in the overwintering period, the water for cultivation is obtained by filtering natural seawater through precipitation, sand filtration and bolting silk bags (200 meshes), then preheating the seawater to the temperature of 22-24 ℃ required by overwintering through a preheating tank 3, and then injecting water to the 1.6m positions of scale marks on the wall of a cultivation tank 1 by a water pump, wherein other water quality conditions are as follows: the salinity is 28 to 32 per mill, the pH is 8.0 to 8.5, and the dissolved oxygen in water is not lower than 6mg/L.
After the squid overwintering system is built, squid parents are selected for overwintering management, healthy, obvious-flaw-free and full-fat parents are selected to enter a pool, female parents are selected to have a weight of more than 1kg, and male parents are selected to have a weight of more than 1.5 kg. Thus, the parent individuals are large, the fertility is strong, and more high-quality fertilized eggs can be obtained. According to the breeding habit of cuttlefish, namely male cuttlefish and female cuttlefish, and the mating process is often accompanied with robbing mating rights, the fighting among male individuals causes the phenomenon of ink jet, so that the physiological states of other parents are influenced, and the water quality is polluted to a certain extent, and therefore, the proportion of female and male cuttlefish parents is controlled to be 2:1-3:1. The sepia tiger is a benthic species, has field habit, and is easy to cause casualties when fighting with too high densityLow in degree and unfavorable for large-scale cultivation, so that the stocking density of the cuttlefish tiger spots in the cultivation pool 1 is 5-7 cuttlefish tiger spots/m 2 . During overwintering, the cuttlefish parent nutrition strengthening bait is selected from live sand worm and live penaeus vannamei boone. The sargassum horneri contains rich amino acids and microelements (zinc, copper, manganese, iron, calcium and the like) and has remarkable effect of promoting the gonadal development of parents. The cuttlefish with tiger spots is loved to ingest crustaceans, and the fresh and alive penaeus vannamei not only meets the growth and development requirements of the penaeus vannamei, but also can improve the ingestion interest of the penaeus vannamei. Before feeding, the sandworms need to be cleaned with water to prevent the parent from being infected by bacteria, and the fresh Litopenaeus vannamei should remove the frontal thorns to prevent the infection caused by stabbing.
After the cuttlefish parents enter the pond, the feeding time is selected to feed once each day at 7:00 am and 14:00 pm, and the fresh ice bait is fed: and (3) mixing and feeding the merfish, the small yellow croaker and the prawns (hawk-like prawns, chinese tube whip prawns and penaeus vannamei boone) each time until the parents do not eat. In order to promote the gonad development and maturation of the cuttlefish with tiger spots, the live sand worms or the live penaeus vannamei boone are fed once a day at the afternoon in a nutrient enrichment mode of 17:00. The sepia tiger camps and benthic life, so that the pool bottom 12 is kept clean. Therefore, after feeding for 1h, namely after the squid with tiger spots is fed, the residual bait at the bottom 12 of the pond and the excreta of the squid are removed by a dip net, so that the water quality can be maintained, and the skin of the squid with stink such as bones and frontal thorns remained in the bait fishes and shrimps can be prevented from being infected. In order to further maintain the water quality, water is fed once every morning, the water change amount is 30-50%, the water inlet temperature is equal to the water temperature in the pond, the fluctuation of the water temperature in the cultivation pond 1 is controlled to be less than +/-2 ℃, and the phenomenon that the water temperature in the cultivation pond 1 suddenly changes too much to cause discomfort of cuttlefish and ink jet is carefully prevented. The electric heater is used for heating at night, the opening time of the electric heater is 18:00 of night to 7:00 of the morning of the next day, and therefore the water temperature of the cultivation pool 1 can be kept constant. The cuttlefish parents have male chase female individuals and head-to-head pairing along with gonad development during overwintering, namely the cuttlefish pugging and mating behaviors, the parents can spawn 3d-5d after mating, egg attaching bases 10 are placed at the moment, and fertilized eggs are collected. Similarly, bleaching powder (80-100 g/m 3 ) Sterilizing for 4h, and cleaning. Egg attaching baseThe distance from the bottom of the fertilized egg base 10 to the bottom of the culture pond 1 is 30cm, so that the movement of the cuttlefish with tiger spots is not influenced, the number of fertilized egg bases 10 is not excessive, the actions such as parent chasing and the like are not influenced too much, fertilized eggs 5d-7d on the fertilized egg bases 10 can be collected once, the taken fertilized egg bases 10 are placed in the culture pond 1 after being disinfected and cleaned, and the collected fertilized eggs are placed in the hatching pond for hatching. According to the cleanliness of the pool bottom 12, the pool is poured once in the over winter period of 20-25 days, so that the accumulation of residual baits and excreta on the pool bottom 12 can be prevented, and bacteria, parasites and the like can be bred. Draining to scale marks of 11 of the pond wall for 30cm in the pond pouring process, catching cuttlefish with a dip net in the pond, transferring the cuttlefish into a culture pond with water, and preventing the cuttlefish from leaving water in the whole process, so that the occurrence of ink jet of the cuttlefish in the pond pouring process can be reduced.
The specific method of the embodiment is adopted to cultivate the parent of the sepia tiger in winter, the survival rate of the parent reaches 86.6 percent, and the average spawning quantity of each female sepia tiger reaches 2523. Through the operation of the method, the smooth transition of the parent body of the cuttlefish with tiger spots in the overwintering period is ensured, and production practice guidance is provided for realizing the full artificial breeding and large-scale cultivation of the cuttlefish with tiger spots.
Although the present disclosure is described above, the scope of protection of the present disclosure is not limited thereto. Various changes and modifications may be made by one skilled in the art without departing from the spirit and scope of the disclosure, and these changes and modifications will fall within the scope of the invention.
Claims (10)
1. The overwintering cultivation method for the cuttlefish parents is characterized by comprising the following steps of:
s1, building an overwintering system of cuttlefish tiger spots: selecting a construction position of the overwintering system, and then constructing the tiger spot cuttlefish overwintering system at the selected position;
s2, selecting a squid overwintering parent: selecting female parent and male parent, and controlling the ratio of female parent to male parent to be 2:1-3:1;
s3, putting the squid overwintering parents of tiger spots: putting the parent selected in the step S2 into the system constructed in the step S1, wherein the putting density is 5-7 parents/m 2 ；
S4, daily cultivation and management of cuttlefish tiger spots: including feeding, water quality control, water temperature control, illumination control and cleaning control.
2. The method for overwintering cultivation of cuttlefish parents according to claim 1, wherein said cuttlefish overwintering system comprises: cultivate pond (1), water inlet unit (2), preheat pond (3), temperature regulating device (4), accuse light device (5), aerating device (6), and drainage device (7), preheat pond (3) with water inlet unit (2) link to each other, water inlet unit (2) with the water inlet of cultivating pond (1) links to each other, drainage device (7) with the delivery port of cultivating pond (1) links to each other, cultivate pond (1) including pool wall (11), bottom of the pool (12) and pond top (13), temperature regulating device (4) set up in pool wall (11), accuse light device (5) set up the top of cultivating pond (1), aerating device (6) set up in the bottom of cultivating pond (1).
3. The overwintering cultivation method for cuttlefish parents according to claim 2, wherein the temperature control device (4) is an electric heater, and the distance between the temperature control device (4) and the inner surface of the cultivation pool wall (11) is 10cm-15cm.
4. The overwintering cultivation method for cuttlefish parents according to claim 2, wherein the light control device (5) is an LED lamp tube, and the distance between the light control device (5) and the upper edge of the cultivation pool wall (11) is 1.5m.
5. The method for overwintering cultivation of cuttlefish with tiger spot according to claim 2, wherein said cuttlefish with tiger spot overwintering system further comprises a plurality of egg attaching bases (10) for collecting fertilized eggs of cuttlefish with tiger spot, said egg attaching bases (10) are arranged in said cultivation pool (1), and said egg attaching bases (10) are 30cm from said pool bottom (12).
6. The method for overwintering cultivation of cuttlefish parents according to claim 1, wherein the feeding comprises a daily feeding step and a nutrition enhancing step, wherein the daily feeding step is feeding at least one of ice fresh meretrix, small yellow croaker and prawn at a rate of 7:00 am and 4:00 pm; the nutrition fortification step is to conduct nutrition fortification feeding at the afternoon of 17:00 a day, and the nutrition fortification bait is at least one of sand worm and penaeus vannamei boone.
7. The method for overwintering cuttlefish parent body according to claim 6, wherein the water quality control comprises a pretreatment step of water for cultivation and a water quality maintenance step in the cultivation process, wherein the pretreatment step of water for cultivation is to take a certain amount of natural seawater, and then add the seawater into the cuttlefish overwintering system after precipitation, sand filtration and bolting-silk bag filtration; the water quality maintenance step in the cultivation process comprises the following steps: after each bait feeding for 1h, the residual bait and cuttlefish excrement at the bottom (12) of the pond are removed by a dip net; once daily, water is fed in the morning, and the water quantity accounts for 30% -50% of the total water quantity of the squid overwintering system; controlling the salinity of water for culturing in the wintering system of cuttlefish with pH of 8.0-8.5 and dissolved oxygen not lower than 6mg/L.
8. The overwintering cultivation method for cuttlefish parents according to claim 7, wherein the water temperature control step comprises a water inlet temperature control step and a water temperature control step in a cultivation pond (1), wherein the water inlet temperature control step is to control the water inlet temperature entering the cultivation pond (1) to be 22-24 ℃ through the preheating pond (3); the water temperature in the cultivation pool (1) is controlled to be kept at 22-24 ℃ by the temperature control device (4).
9. The overwintering cultivation method for cuttlefish parents according to claim 2, wherein the light control means (5) is used for controlling the water surface illumination intensity of water for cultivation in the cultivation pond (1) to be 300lux-500lux.
10. The overwintering cultivation method for cuttlefish parents, according to claim 2, characterized in that the cleaning control comprises a disinfection treatment step and a pool pouring treatment step, wherein the disinfection treatment step is that before the cultivation pool (1) and the preheating pool (3) are used, bleaching powder is used for disinfection, sodium hypochlorite is used for thorough disinfection, and then cultivation water is used for cleaning; the step of pool-pouring treatment is to pour the pool once every 15-20 days during the overwintering period.
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| CN118177110A (en) * | 2024-05-14 | 2024-06-14 | 中国海洋大学 | Indoor cuttlefish cultivation device and cultivation method thereof |
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