Method for breeding and hatching seedlings of tropical Australian freshwater lobsters

Abstract

The invention discloses a method for breeding and hatching seedlings of tropical Australian freshwater lobsters, which comprises the following steps of: 1, selecting a proper feeding address and mature external conditions for a feeding shed, and building the feeding shed; step 2, providing equipment with a constant temperature condition for the feeding shed, ventilating conveniently, and keeping the indoor temperature at 23-28 DEG C; 3, digging a pit with the depth of 1.5-2 m from the ground of the breeding pond downwards, building the pit with cement, adding 0.6-1.2 m of water with the water transparency being 0.4 m or above, and additionally installing a pressure pump in the pond; 4, a sandy or hard soil bottom is arranged in the feeding pond, water hyacinth is planted, the covering area ranges from 30% to 40%, and a hidden place is provided for the lobsters; 5, a set of blocking nets are hung in the middle of each breeding pond, water can freely flow, but the lobsters cannot pass through the blocking nets. The invention relates to the field of breeding of freshwater lobsters, in particular to a method for breeding and hatching seedlings of tropical Australian freshwater lobsters.

Description

Technical Field

[0001] The invention relates to the field of freshwater lobster breeding, and in particular to a method for breeding and hatching tropical Australian freshwater lobster seedlings. Background Art

[0002] Tropical Australian freshwater lobster is a crustacean of the family Cheliceridae in the order Decapoda. It has a brown-green body color and a membranous bright red band on the outer tip of its claws. It is named for its robust and majestic appearance, which resembles a sea lobster. Tropical Australian freshwater lobster is native to the tropical region of northern Australia. It has strong adaptability and can tolerate harsh climates. It can live normally in water temperatures between 5-35 degrees Celsius. It lurks in hidden places during the day, feeds at dusk and dawn, and is active at night, living a bottom-dwelling crawling life. It has a mixed diet, eating both animal feed and artificial compound feed and humus, and is easy to raise.

[0003] With the improvement of living standards, Australian lobsters are gradually accepted and loved by people for their delicious meat, and artificial breeding of tropical Australian freshwater lobsters has also become a major way to increase production and reduce prices.

[0004] Transferring male and female shrimps to the same breeding pond for mating before mating does not result in a higher mating rate than keeping them originally in the same pond. However, if they are always kept in the same pond, the mating time cannot be controlled. In addition, the collection of tropical Australian freshwater shrimp fry is also more troublesome. Summary of the invention

[0005] The invention relates to a method for breeding and hatching tropical Australian freshwater lobster seedlings.

[0006] To solve the above problems, the technical solution adopted by the present invention is as follows: The present invention is a method for breeding and hatching tropical Australian freshwater lobster seedlings, comprising the following steps:

[0007] Step 1: Choose a suitable breeding location and mature external conditions to build a breeding shed;

[0008] Step 2: The breeding shed is equipped with constant temperature equipment and convenient ventilation to maintain the indoor temperature at 23-28 degrees Celsius;

[0009] Step 3: dig a pit 1.5m-2m deep from the ground into the breeding pond, build it with cement, add 0.6-1.2m of water, the water transparency should be above 0.4m, and install a pressure pump in the pond;

[0010] Step 4: Arrange a sandy or hard soil bottom in the breeding pond and plant water hyacinths to cover 30-40% of the area to provide a hidden place for tropical Australian freshwater lobsters;

[0011] Step 5: Hang a set of barrier nets in the middle of each breeding pond, so that water can flow freely but tropical Australian freshwater lobsters cannot pass through;

[0012] Step 6: Select adult shrimps with complete appendages, smooth bodies, strong vitality, and body length of more than 9 cm in advance. Separate the male and female shrimps according to a certain ratio and place them on both sides of the barrier net in the same breeding pond;

[0013] Step 7: By the end of January each year, remove the isolation net in the middle, start mixed breeding and mating, lower the temperature in the shed, and control it at 20-25 degrees Celsius for 2-3 days;

[0014] Step 8: Carefully observe the status of the female shrimps. When the fertilized eggs develop into red, place the female shrimps in the net cage for incubation. There are 6-8 female shrimps in each net cage.

[0015] Step nine, the hatched tropical Australian freshwater shrimp fry are collected from the gap between the outer cage and the inner cage, and placed in a specific nursery pond for breeding. After 5-7 days, the fry will emerge. The tropical Australian freshwater shrimp fry with complete appendages, smooth bodies and no diseases are selected and placed in a special breeding pond.

[0016] Furthermore, the breeding site in step 1 must be in a sunny location, with no long-term noise pollution, no air and water pollution, a stable and clean water source or water source provider, very convenient drainage and irrigation, convenient transportation, and stable power supply.

[0017] Furthermore, in step 2, the roof and sides of the breeding shed are provided with controllable ventilation windows, ventilation is fast and convenient, and air conditioning equipment is provided.

[0018] Furthermore, in step three, a 1-meter walkway is reserved between the pools.

[0019] Furthermore, the diameter of the barrier mesh in step five is 2-3 cm.

[0020] Furthermore, in step six, a more appropriate male-female ratio of 2:1 is preferred.

[0021] Furthermore, the step seven of lowering the temperature is to promote mating and egg-laying.

[0022] Furthermore, in step eight, the net cage is divided into two layers, an inner net cage and an outer net cage, the mesh size of the inner net cage is 0.8-1 cm, and the mesh size of the outer net cage is 0.25 mm.

[0023] Preferably, the water quality maintains a pH value between 6 and 8.

[0024] The beneficial effects achieved by the present invention using the above structure are as follows:

[0025] 1. Provide requirements and conditions for the site selection of tropical Australian freshwater lobster breeding ponds to reduce the probability of the quality of tropical Australian freshwater lobsters being affected by objective factors such as water sources, electricity, and transportation.

[0026] 2. Ensure the temperature and ventilation conditions in the shed, and have strict temperature setting requirements to reduce the chance of slow growth and low reproductive capacity of tropical Australian freshwater crayfish due to temperature discomfort.

[0027] 3. By using barrier nets, male and female shrimps can be raised in the same breeding pond at the same time, reducing the process of moving ponds, increasing mating rates, and controlling mating time.

[0028] 4. Use inner and outer cages to collect tropical Australian freshwater shrimp fry. DETAILED DESCRIPTION

[0029] Example 1

[0030] The present invention is a method for breeding and hatching tropical Australian freshwater lobster seedlings, comprising the following steps:

[0031] Step 1: Choose a suitable breeding site and mature external conditions to build a breeding shed. It should be in a sunny location with no long-term noise pollution, no air and water pollution, a stable and clean water source or water source provider, very convenient drainage and irrigation, convenient transportation, and stable power supply;

[0032] Step 2: The feeding shed is equipped with constant temperature equipment and convenient ventilation. The ceiling and sides of the feeding shed have controllable ventilation windows, which are fast and convenient for ventilation. It is also equipped with air conditioning equipment to maintain the indoor temperature at 23 degrees Celsius.

[0033] Step 3: Dig a 1.5m deep pit from the ground and build it with cement. Leave a 1m walkway between the pools. Add 0.6m of water. The water transparency should be above 0.4m. Install a pressure pump in the pool.

[0034] Step 4: Arrange a sandy or hard soil bottom in the breeding pond and plant water hyacinths to cover 30% of the area to provide a hidden place for tropical Australian freshwater lobsters;

[0035] Step 5: Hang a set of barrier nets in the middle of each breeding pond. The diameter of the barrier nets is 2 cm. Water can flow freely, but tropical Australian freshwater lobsters cannot pass through.

[0036] Step 6: Select adult shrimps with complete appendages, smooth bodies, strong vitality, and body length of more than 9 cm in advance. Separate the males and females according to a certain ratio and place them on both sides of the barrier net in the same breeding pond. The most appropriate ratio of males to females is 2:1.

[0037] Step 7: In late January each year, remove the isolation net in the middle, start mixed breeding and mating, lower the temperature in the shed and control it at 20 degrees Celsius. The lowering of the temperature is to promote mating and spawning, and the maintenance time is 2 days;

[0038] Step 8: Carefully observe the status of the female shrimps. After the fertilized eggs develop into red, put the female shrimps into the net cage for incubation. There are 6 female shrimps in each net cage. The net cage is divided into two layers, inner net cage and outer net cage. The mesh of the inner net cage is 0.8 cm, and the mesh of the outer net cage is 0.25 mm.

[0039] Step nine, the hatched tropical Australian freshwater shrimp fry are collected from the gap between the outer cage and the inner cage, and placed in a specific nursery pond for breeding. After 5 days, the fry will emerge. The tropical Australian freshwater shrimp fry with complete appendages, smooth bodies and no diseases are selected and placed in a special breeding pond.

[0040] Example 2

[0041] The present invention is a method for breeding and hatching tropical Australian freshwater lobster seedlings, comprising the following steps:

[0042] Step 1: Choose a suitable breeding site and mature external conditions to build a breeding shed. It should be in a sunny location with no long-term noise pollution, no air and water pollution, a stable and clean water source or water source provider, very convenient drainage and irrigation, convenient transportation, and stable power supply;

[0043] Step 2: The feeding shed is equipped with constant temperature equipment and convenient ventilation. The ceiling and sides of the feeding shed have controllable ventilation windows, which are fast and convenient for ventilation. It is also equipped with air conditioning equipment to maintain the indoor temperature at 24 degrees Celsius.

[0044] Step 3: Dig a 1.6m deep pit from the ground and build it with cement. Leave a 1m walkway between the pools. Add 0.7m of water. The water transparency should be above 0.4m. Install a pressure pump in the pool.

[0045] Step 4: Arrange a sandy or hard soil bottom in the breeding pond and plant water hyacinths to cover 32% of the area to provide a hidden place for tropical Australian freshwater lobsters;

[0046] Step 5: Hang a set of barrier nets in the middle of each breeding pond. The diameter of the barrier nets is 2.2 cm. Water can flow freely, but tropical Australian freshwater lobsters cannot pass through.

[0047] Step 6: Select adult shrimps with complete appendages, smooth bodies, strong vitality, and body length of more than 9 cm in advance. Separate the males and females according to a certain ratio and place them on both sides of the barrier net in the same breeding pond. The most appropriate ratio of males to females is 2:1.

[0048] Step 7: In late January each year, remove the isolation net in the middle, start mixed breeding and mating, lower the temperature in the shed and control it at 21 degrees Celsius. The lowering of the temperature is to promote mating and spawning, and the maintenance time is 2 days;

[0049] Step 8: Carefully observe the status of the female shrimps. After the fertilized eggs develop into red, put the female shrimps into the net cage for incubation. There are 6 female shrimps in each net cage. The net cage is divided into two layers, inner net cage and outer net cage. The mesh of the inner net cage is 0.8 cm, and the mesh of the outer net cage is 0.25 mm.

[0050] Step nine, the hatched tropical Australian freshwater shrimp fry are collected from the gap between the outer cage and the inner cage, and placed in a specific nursery pond for breeding. After 5 days, the fry will emerge. The tropical Australian freshwater shrimp fry with complete appendages, smooth bodies and no diseases are selected and placed in a special breeding pond.

[0051] Example 3

[0052] The present invention is a method for breeding and hatching tropical Australian freshwater lobster seedlings, comprising the following steps:

[0053] Step 1: Choose a suitable breeding site and mature external conditions to build a breeding shed. It should be in a sunny location with no long-term noise pollution, no air and water pollution, a stable and clean water source or water source provider, very convenient drainage and irrigation, convenient transportation, and stable power supply;

[0054] Step 2: The feeding shed is equipped with constant temperature equipment and convenient ventilation. The ceiling and sides of the feeding shed have controllable ventilation windows, which are fast and convenient for ventilation. It is also equipped with air conditioning equipment to maintain the indoor temperature at 25 degrees Celsius.

[0055] Step 3: Dig a 1.7 meter deep pit from the ground and build it with cement. Leave a 1 meter walkway between the pools. Add 0.8 meters of water. The water transparency should be above 0.4 meters. Install a pressure pump in the pool.

[0056] Step 4: Arrange a sandy or hard soil bottom in the breeding pond and plant water hyacinths to cover 34% of the area to provide a hidden place for tropical Australian freshwater lobsters;

[0057] Step 5: Hang a set of barrier nets in the middle of each breeding pond. The diameter of the barrier nets is 2 cm. Water can flow freely, but tropical Australian freshwater lobsters cannot pass through.

[0058] Step 6: Select adult shrimps with complete appendages, smooth bodies, strong vitality, and body length of more than 9 cm in advance. Separate the males and females according to a certain ratio and place them on both sides of the barrier net in the same breeding pond. The most appropriate ratio of males to females is 2:1.

[0059] Step 7: In late January each year, remove the isolation net in the middle, start mixed breeding and mating, lower the temperature in the shed and control it at 23 degrees Celsius. The lowering of the temperature is to promote mating and spawning, and the maintenance time is 2 days;

[0060] Step 8: Carefully observe the status of the female shrimps. After the fertilized eggs develop into red, put the female shrimps into the net cage for incubation. There are 7 female shrimps in each net cage. The net cage is divided into two layers, inner net cage and outer net cage. The mesh of the inner net cage is 0.9 cm, and the mesh of the outer net cage is 0.25 mm.

[0061] Step nine, the hatched tropical Australian freshwater shrimp fry are collected from the gap between the outer cage and the inner cage, and placed in a specific nursery pond for breeding. After 6 days, the fry will emerge. The tropical Australian freshwater shrimp fry with complete appendages, smooth bodies and no diseases are selected and placed in a special breeding pond.

[0062] Example 4

[0063] The present invention is a method for breeding and hatching tropical Australian freshwater lobster seedlings, comprising the following steps:

[0064] Step 1: Choose a suitable breeding site and mature external conditions to build a breeding shed. It should be in a sunny location with no long-term noise pollution, no air and water pollution, a stable and clean water source or water source provider, very convenient drainage and irrigation, convenient transportation, and stable power supply;

[0065] Step 2: The feeding shed is equipped with constant temperature equipment and convenient ventilation. The ceiling and sides of the feeding shed have controllable ventilation windows, which are fast and convenient for ventilation. It is also equipped with air conditioning equipment to maintain the indoor temperature at 27 degrees Celsius.

[0066] Step 3: Dig a 1.9m deep pit from the ground and build it with cement. Leave a 1m walkway between the pools. Add 1m of water. The water transparency should be above 0.4m. Install a pressure pump in the pool.

[0067] Step 4: Arrange a sandy or hard soil bottom in the breeding pond and plant water hyacinths to cover 38% of the area to provide a hidden place for tropical Australian freshwater lobsters;

[0068] Step 5: Hang a set of barrier nets in the middle of each breeding pond. The diameter of the barrier nets is 3 cm. Water can flow freely, but tropical Australian freshwater lobsters cannot pass through.

[0069] Step 6: Select adult shrimps with complete appendages, smooth bodies, strong vitality, and body length of more than 9 cm in advance. Separate the males and females according to a certain ratio and place them on both sides of the barrier net in the same breeding pond. The most appropriate ratio of males to females is 2:1.

[0070] Step 7: In late January each year, remove the isolation net in the middle, start mixed breeding and mating, lower the temperature in the shed and control it at 24 degrees Celsius. The lowering of the temperature is to promote mating and spawning, and the maintenance time is 3 days;

[0071] Step 8: Carefully observe the status of the female shrimps. After the fertilized eggs develop into red, put the female shrimps into the net cage for incubation. There are 8 female shrimps in each net cage. The net cage is divided into two layers, inner net cage and outer net cage. The mesh of the inner net cage is 1 cm, and the mesh of the outer net cage is 0.25 mm.

[0072] Step nine, the hatched tropical Australian freshwater shrimp fry are collected from the gap between the outer cage and the inner cage, and placed in a specific nursery pond for breeding. After 7 days, the fry will emerge. The tropical Australian freshwater shrimp fry with complete appendages, smooth bodies and no diseases are selected and placed in a special breeding pond.

[0073] Example 5

[0074] The present invention is a method for breeding and hatching tropical Australian freshwater lobster seedlings, comprising the following steps:

[0075] Step 1: Choose a suitable breeding site and mature external conditions to build a breeding shed. It should be in a sunny location with no long-term noise pollution, no air and water pollution, a stable and clean water source or water source provider, very convenient drainage and irrigation, convenient transportation, and stable power supply;

[0076] Step 2: The feeding shed is equipped with constant temperature equipment and convenient ventilation. The ceiling and sides of the feeding shed have controllable ventilation windows, which are fast and convenient for ventilation. It is also equipped with air conditioning equipment to maintain the indoor temperature at 28 degrees Celsius.

[0077] Step 3: Dig a 2m deep pit from the ground and build it with cement. Leave a 1m walkway between the pools. Add 1.2m of water. The water transparency should be above 0.4m. Install a pressure pump in the pool.

[0078] Step 4: Arrange a sandy or hard soil bottom in the breeding pond and plant water hyacinths to cover 40% of the area to provide a hidden place for tropical Australian freshwater lobsters;

[0079] Step 5: Hang a set of barrier nets in the middle of each breeding pond. The diameter of the barrier nets is 3 cm. Water can flow freely, but tropical Australian freshwater lobsters cannot pass through.

[0080] Step 6: Select adult shrimps with complete appendages, smooth bodies, strong vitality, and body length of more than 9 cm in advance. Separate the males and females according to a certain ratio and place them on both sides of the barrier net in the same breeding pond. The most appropriate ratio of males to females is 2:1.

[0081] Step 7: In late January each year, remove the isolation net in the middle, start mixed breeding and mating, lower the temperature in the shed and control it at 25 degrees Celsius. The lowering of the temperature is to promote mating and spawning, and the maintenance time is 3 days;

[0082] Step 8: Carefully observe the status of the female shrimps. After the fertilized eggs develop into red, put the female shrimps into the net cage for incubation. There are 8 female shrimps in each net cage. The net cage is divided into two layers, inner net cage and outer net cage. The mesh of the inner net cage is 1 cm, and the mesh of the outer net cage is 0.25 mm.

[0083] Step nine, the hatched tropical Australian freshwater shrimp fry are collected from the gap between the outer cage and the inner cage, and placed in a specific nursery pond for breeding. After 7 days, the fry will emerge. The tropical Australian freshwater shrimp fry with complete appendages, smooth bodies and no diseases are selected and placed in a special breeding pond.

[0084] It should be understood that although this specification is described according to implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A method for breeding and hatching tropical Australian freshwater lobster seedlings, characterized in that: The steps include: Step 1: Choose a suitable breeding location and mature external conditions to build a breeding shed; Step 2: The breeding shed is equipped with constant temperature equipment and convenient ventilation to maintain the indoor temperature at 23-28 degrees Celsius; Step 3: dig a pit 1.5m-2m deep from the ground into the breeding pond, build it with cement, add 0.6-1.2m of water, the water transparency should be above 0.4m, and install a pressure pump in the pond; Step 4: Arrange a sandy or hard soil bottom in the breeding pond and plant water hyacinths to cover 30-40% of the area to provide a hidden place for tropical Australian freshwater lobsters; Step 5: Hang a set of barrier nets in the middle of each breeding pond, so that water can flow freely but tropical Australian freshwater lobsters cannot pass through; Step 6: Select adult shrimps with complete appendages, smooth bodies, strong vitality, and body length of more than 9 cm in advance. Separate the male and female shrimps according to a certain ratio and place them on both sides of the barrier net in the same breeding pond; Step 7: By the end of January each year, remove the isolation net in the middle, start mixed breeding and mating, lower the temperature in the shed, and control it at 20-25 degrees Celsius for 2-3 days; Step 8: Carefully observe the status of the female shrimps. When the fertilized eggs develop into red, place the female shrimps in the net cage for incubation. There are 6-8 female shrimps in each net cage. Step nine, the hatched tropical Australian freshwater shrimp fry are collected from the gap between the outer cage and the inner cage, and placed in a specific nursery pond for breeding. After 5-7 days, the fry will emerge. The tropical Australian freshwater shrimp fry with complete appendages, smooth bodies and no diseases are selected and placed in a special breeding pond.

2. The method for breeding and hatching tropical Australian freshwater lobster seedlings according to claim 1, characterized in that: The breeding site in step 1 must be in a sunny location, with no long-term noise pollution, no air and water pollution, a stable and clean water source or water source provider, very convenient drainage and irrigation, convenient transportation, and stable power supply.

3. The method for breeding and hatching tropical Australian freshwater lobster seedlings according to claim 2, characterized in that: In the step 2, the roof and sides of the breeding shed are provided with controllable ventilation windows, ventilation is fast and convenient, and air conditioning equipment is provided.

4. The method for breeding and hatching tropical Australian freshwater lobster seedlings according to claim 3, characterized in that: In step 3, a 1-meter walkway is reserved between the pools.

5. The method for breeding and hatching tropical Australian freshwater lobster seedlings according to claim 4, characterized in that: The diameter of the barrier mesh in step 5 is 2-3 cm.

6. The method for breeding and hatching tropical Australian freshwater lobster seedlings according to claim 5, characterized in that: In step 6, a more appropriate male-female ratio of 2:1 is preferred.

7. The method for breeding and hatching tropical Australian freshwater lobster seedlings according to claim 6, characterized in that: The purpose of step seven, lowering the temperature, is to promote mating and egg-laying.

8. The method for breeding and hatching tropical Australian freshwater lobster seedlings according to claim 7, characterized in that: In the step eight, the net cage is divided into two layers, an inner net cage and an outer net cage, the mesh of the inner net cage is 0.8-1 cm, and the mesh of the outer net cage is 0.25 mm.