CN111642432A - Method for in-situ breeding of red swamp crayfish in rice field planting area in slack winter - Google Patents
Method for in-situ breeding of red swamp crayfish in rice field planting area in slack winter Download PDFInfo
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- CN111642432A CN111642432A CN202010266808.XA CN202010266808A CN111642432A CN 111642432 A CN111642432 A CN 111642432A CN 202010266808 A CN202010266808 A CN 202010266808A CN 111642432 A CN111642432 A CN 111642432A
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- rice field
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01K—ANIMAL HUSBANDRY; CARE OF BIRDS, FISHES, INSECTS; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
- A01K61/00—Culture of aquatic animals
- A01K61/50—Culture of aquatic animals of shellfish
- A01K61/59—Culture of aquatic animals of shellfish of crustaceans, e.g. lobsters or shrimps
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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
- A01G22/00—Cultivation of specific crops or plants not otherwise provided for
-
- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23K—FODDER
- A23K10/00—Animal feeding-stuffs
- A23K10/20—Animal feeding-stuffs from material of animal origin
- A23K10/22—Animal feeding-stuffs from material of animal origin from fish
-
- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23K—FODDER
- A23K10/00—Animal feeding-stuffs
- A23K10/30—Animal feeding-stuffs from material of plant origin, e.g. roots, seeds or hay; from material of fungal origin, e.g. mushrooms
-
- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23K—FODDER
- A23K10/00—Animal feeding-stuffs
- A23K10/30—Animal feeding-stuffs from material of plant origin, e.g. roots, seeds or hay; from material of fungal origin, e.g. mushrooms
- A23K10/37—Animal feeding-stuffs from material of plant origin, e.g. roots, seeds or hay; from material of fungal origin, e.g. mushrooms from waste material
-
- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23K—FODDER
- A23K50/00—Feeding-stuffs specially adapted for particular animals
- A23K50/80—Feeding-stuffs specially adapted for particular animals for aquatic animals, e.g. fish, crustaceans or molluscs
-
- 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
-
- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P60/00—Technologies relating to agriculture, livestock or agroalimentary industries
- Y02P60/80—Food processing, e.g. use of renewable energies or variable speed drives in handling, conveying or stacking
- Y02P60/87—Re-use of by-products of food processing for fodder production
Abstract
The invention discloses a method for in-situ breeding of red swamp crayfish by using a rice field planting area in slack winter, which is characterized by comprising the following steps: drying and disinfecting the rice field, and breeding parents with the water discharge specification of more than 50 g/tail in a female-male ratio of 3:1 or 5: 2; according to the method, parents are put in quantitatively, the temperature and the illumination are accurately controlled by planting the water lettuce and building a sunshade net, meanwhile, the survival rate of the parent shrimps is improved by paving the Alternanthera philoxeroides, the influence on an anti-oxidation system of the parent shrimps is reduced by matching high-quality feed and feeding time, the gonad development of the parents is promoted, the dry field is stressed, the mating is carried out in advance, and the like, so that the breeding efficiency and the contribution degree of the parent shrimps are improved, meanwhile, the survival rate of the juvenile shrimps can be ensured by high-quality feed, the problem that the parent shrimps of the red crayfish are difficult to survive and breed is solved, the survival rate of the juvenile shrimps is improved, and the product income is improved.
Description
Technical Field
The invention relates to the technical field of breeding, in particular to a method for carrying out in-situ breeding on red swamp crayfish by utilizing a rice field planting area in slack winter.
Background
The red crayfish is also named as Australia freshwater lobster, the original product Australia is exactly like the crayfish in the sea, and the red crayfish is one of the most famous and precious freshwater economic crayfish species in the world. The shrimp body is brown green, and the top end of the outer chela is provided with a fresh red zone with membrane quality, so that the shrimp is beautiful and good-looking, and is known as red-chela shrimp.
In the prior art, the number of the released parents is unreasonable, the temperature is higher, the illumination area is larger, the survival rate of the parent shrimps is too low, the protein feed ratio and the feeding time easily influence the antioxidant system of the parent shrimps, the gonad development of the parents is influenced, the breeding efficiency and contribution degree of the parent shrimps are influenced, meanwhile, the feed ratio easily causes the situation of low survival rate of the juvenile shrimps, and further the product income is influenced, and therefore the method for carrying out the in-situ breeding of the red crayfish by utilizing the rice field planting area in the slack winter season is provided for solving the problems.
Disclosure of Invention
The invention aims to provide a method for carrying out in-situ breeding of red swamp crayfish by utilizing a rice field planting area in slack winter so as to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: a method for carrying out in-situ breeding of red swamp crayfish in a rice field planting area in slack winter is characterized by comprising the following steps: drying and disinfecting the rice field, and breeding parents with the water discharge specification of more than 70 g/tail in a female-male ratio of 3:1 or 5: 2; planting water lettuce 75% of the periphery of the rice field, feeding the feed twice every morning and evening, wherein the feed is protein feed, and the single daily feeding amount is 5-6% of the weight of the shrimps; after mating and spawning of parent shrimps, feeding management is carried out in a conventional mode, and the red-swamp crayfish fries are harvested in batches.
The stocking density of the red swamp crayfish is 8-15 per square meter, the water lettuce penetrates through the filter screen and is planted in the rice field, and the filter screen is detachably mounted on the ridge on the upper surface of the rice field.
Parents require pure descent, 1-2 shrimps with the age of winter and the weight of 50-80 g are selected as parent shrimps, and the parent shrimps are required to be fat, strong, disease-free, injury-free, complete in appendage, smooth in body surface, free of attachment organisms such as sessile ciliates and cutworms, quick in reaction and strong in activity.
Feeding the feed twice in the morning and evening, wherein the feeding time is 3-5 points in the morning and 15-18 points in the evening, and the protein feed refers to beans, cakes, fish meal and the like with the natural water content of lower than 45%, the crude fiber of dry matter of lower than 18%, and the crude protein content of the dry matter of 20% or higher.
After mating, adjusting the water level line to be 20cm optimally after the parent shrimp is in the hole, paving a layer of Alternanthera philoxeroides at the bottom of the rice field before adjusting the water level line, and detecting the rice field and added water while adjusting the water level line.
When the conventional mode is adopted for feeding, the parent shrimps need to be sampled and detected, and the problem parent shrimps are isolated.
(1) Design of rice field
Planting water lettuce along 75% of the periphery of the rice field, wherein the water lettuce penetrates through a filter screen and is planted in the rice field, and the filter screen is detachably arranged on a ridge on the upper surface of the rice field;
(2) parent releasing
Parent breeding specifications of more than 70 g/tail in the last ten days, wherein the male-female ratio is 3:1 or 5:2, the breeding density of the red chelonian is 8-15 per square meter, the parent needs to be pure in ancestry, 1-2 shrimps with the weight of 50-80 g are selected as parent shrimps, and the parent shrimps are required to be fat, disease-free, injury-free, complete in appendage, smooth in body surface, free of attachment organisms such as sessile ciliates and cutworms, quick in reaction and strong in mobility;
(3) feeding fodder
Feeding the feed twice in the morning and evening every day, wherein the feed is protein feed, the feed is fed twice in the morning and evening every day, the feeding time is 3-5 hours in the morning and 15-18 hours in the evening, the protein feed refers to beans, cake meals, fish meal and the like, the natural water content of the protein feed is lower than 45%, the crude fiber of the protein feed is lower than 18%, and the crude protein content of the protein feed reaches or exceeds 20%;
(4) mating and oviposition
Lowering the water level to 5cm from the bottom of the field, mating with parent shrimps, adjusting the water level to the original water level after 10 days, adjusting the water level line to be optimally 20cm after mating of parent shrimp caves, paving a layer of alternanthera philoxeroides on the bottom of the rice field before adjusting the water level line, and detecting the rice field and added water while adjusting the water level line;
(5) harvesting of seedlings
After mating and spawning are forced in dry fields, conventional feeding management is adopted, when the conventional feeding mode is adopted, sampling detection needs to be carried out on the parent shrimps, and isolation treatment is carried out on the parent shrimps with problems.
Compared with the prior art, the invention has the beneficial effects that:
according to the invention, parents are put in quantitatively, the temperature of a pond is reduced and the irradiation area of sunlight is reduced by planting water lettuce, meanwhile, the survival rate of parent shrimps and the mating desire of the parent shrimps are improved by paving the Alternanthera philoxeroides, the influence on an antioxidant system of the parent shrimps is reduced by matching with high-quality feed and feeding time, the development of gonads of the parents is promoted, the mating is carried out in advance under the dry field stress, and the like, so that the breeding efficiency and contribution degree of the parent shrimps are improved, and meanwhile, the survival rate of the juvenile shrimps can be ensured by the high-quality feed.
Detailed Description
The technical solutions in the embodiments of the present invention are clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The invention provides a technical scheme that: a method for carrying out in-situ breeding of red swamp crayfish in a rice field planting area in slack winter comprises the following steps:
example 1:
(1) design of rice field
Planting water lettuce along 75% of the periphery of the rice field, wherein the water lettuce penetrates through a filter screen and is planted in the rice field, and the filter screen is detachably arranged on a ridge on the upper surface of the rice field;
(2) parent releasing
Stocking parents with the specification of more than 70 g/tail, wherein the male-female ratio is 2.7:2, the stocking density of the red swamp crayfish is 10 per square meter, the parents require pure ancestry, 1 shrimp in winter and 80-100g in weight are selected as parent shrimps, and the parent shrimps require to be fat, strong, disease-free, injury-free, complete in appendage, smooth in body surface, free of attachment organisms such as sessile ciliates and cutworms, quick in reaction and strong in mobility;
(3) feeding fodder
Feeding the feed twice every morning and evening, wherein the feed is protein feed, the feed is fed twice every morning and evening, the feeding time is 3-4 hours in the morning and 15-16 hours in the evening, the protein feed refers to beans, cake meals, fish meal and the like, the natural water content of the protein feed is lower than 45%, the crude fiber of dry matters is lower than 18%, and the crude protein content of the dry matters reaches 20%;
(4) mating and oviposition
Lowering the water level to 5cm from the bottom of the field, mating with parent shrimps, adjusting the water level to the original water level after 10 days, adjusting the water level line to be optimally 20cm after mating of parent shrimp caves, paving a layer of alternanthera philoxeroides on the bottom of the rice field before adjusting the water level line, and detecting the rice field and added water while adjusting the water level line;
(5) harvesting of seedlings
After mating and spawning are forced in dry fields, conventional feeding management is adopted, when the conventional feeding mode is adopted, sampling detection needs to be carried out on the parent shrimps, and isolation treatment is carried out on the parent shrimps with problems.
The in-situ breeding condition of the red swamp crayfish in the rice field planting area of each group of winter fallow is shown in Table 1
Table 1 shows the development of each group of the parents of the red crayfish
Example 2:
(1) design of rice field
Planting water lettuce along 75% of the periphery of the rice field, wherein the water lettuce penetrates through a filter screen and is planted in the rice field, and the filter screen is detachably arranged on a ridge on the upper surface of the rice field;
(2) parent releasing
Stocking parents with the specification of more than 70 g/tail, wherein the male-female ratio is 3:2, the stocking density of the red-swamp crayfish is 20 per square meter, the parents require pure ancestry, the parent shrimps select 2 shrimps with the ages of winter and the weight of 70-80 g, and the parent shrimps require to be fat, disease-free, injury-free, complete appendage, smooth body surface, free of attachment organisms such as sessile ciliates, cutworms and the like, quick response and strong mobility;
(3) feeding fodder
Feeding the feed twice in the morning and evening every day, wherein the feed is protein feed, the feed is fed twice in the morning and evening every day, the feeding time is 4-5 am and 16-18 am, the protein feed refers to beans, cake meals, fish meal and the like, the natural water content of the protein feed is lower than 45%, the crude fiber of the dry matter is lower than 18%, and the crude protein content of the dry matter reaches or exceeds 20%;
(4) mating and oviposition
The method comprises the following steps that (1) holes are punched in the bottom of a field for mating, the water level is reduced to the bottom of the field, and the hole of the parent shrimps is stressed for mating; raising the water level to be more than 15cm of the original water level, enabling the parent shrimps to go out of the holes and lay eggs, adjusting the water level to be the original water level after 10 days, adjusting the water level line to be 20cm optimally after mating the parent shrimps in the holes, paving a layer of alternanthera philoxeroides on the bottom of the rice field before adjusting the water level line, and detecting the rice field and the added water while adjusting the water level line;
(5) harvesting of seedlings
After mating and spawning are forced in dry fields, conventional feeding management is adopted, when the conventional feeding mode is adopted, sampling detection needs to be carried out on the parent shrimps, and isolation treatment is carried out on the parent shrimps with problems.
The in-situ breeding condition of the red swamp crayfish in the rice field planting area of each group of winter fallow is shown in Table 2
Table 2 shows the development of each group of the parents of the red crayfish
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (7)
1. A method for carrying out in-situ breeding of red swamp crayfish in a rice field planting area in slack winter is characterized by comprising the following steps: drying and disinfecting the rice field, and breeding parents with the water discharge specification of more than 50 g/tail in a female-male ratio of 3:1 or 5: 2; planting water lettuce 75% of the periphery of the rice field, feeding the feed twice every morning and evening, wherein the feed is protein feed, and the single daily feeding amount is 5-6% of the weight of the shrimps; after mating and spawning of parent shrimps, feeding management is carried out in a conventional mode, and the red-swamp crayfish fries are harvested in batches.
2. The method for the in-situ breeding of the red swamp crayfish in the rice field planting area in the slack winter according to the claim 1, which is characterized in that: the female-male ratio is 3:1 or 5:2, the stocking density of the red chelonian is 8-15 per square meter, the water lettuce penetrates through the filter screen to be planted in the rice field, and the filter screen is detachably arranged on the ridge on the upper surface of the rice field.
3. The method for the in-situ breeding of the red swamp crayfish in the rice field planting area in the slack winter according to the claim 1, which is characterized in that: parents require pure descent, 1-2 shrimps with the age of winter and the weight of 50-80 g are selected as parent shrimps, and the parent shrimps are required to be fat, strong, disease-free, injury-free, complete in appendage, smooth in body surface, free of attachment organisms such as sessile ciliates and cutworms, quick in reaction and strong in activity.
4. The method for the in-situ breeding of the red swamp crayfish in the rice field planting area in the slack winter according to the claim 1, which is characterized in that: feeding the feed twice in the morning and evening, wherein the feeding time is 3-5 points in the morning and 15-18 points in the evening, and the protein feed refers to beans, cakes, fish meal and the like with the natural water content of lower than 45%, the crude fiber of dry matter of lower than 18%, and the crude protein content of the dry matter of 20% or higher.
5. The method for the in-situ breeding of the red swamp crayfish in the rice field planting area in the slack winter according to the claim 1, which is characterized in that: after mating, adjusting the water level line to be 20cm optimally after the parent shrimp is in the hole, paving a layer of Alternanthera philoxeroides at the bottom of the rice field before adjusting the water level line, and detecting the rice field and added water while adjusting the water level line.
6. The method for the in-situ breeding of the red swamp crayfish in the rice field planting area in the slack winter according to the claim 1, which is characterized in that: when the conventional mode is adopted for feeding, the parent shrimps need to be sampled and detected, and the problem parent shrimps are isolated.
7. The method for the in-situ breeding of the red swamp crayfish in the rice field planting area in the slack winter according to any one of claims 1 to 7, wherein the method comprises the following steps:
(1) design of rice field
Planting water lettuce 75% around the periphery, wherein the water lettuce penetrates through a filter screen and is planted in the rice field, and the filter screen is detachably arranged on a ridge on the upper surface of the rice field;
(2) parent releasing
Stocking parents with the specifications of more than 50 g/tail in the last ten days, wherein the male-female ratio is 3:1 or 5:2, the stocking density of the red chelonian is 8-15 each square meter, the parents require that the ancestry is pure, the parent shrimps select 1-2 shrimps with the ages of winter and the weight of 50-80 g, and the parent shrimps require to be fat, disease-free, injury-free, complete appendage, smooth body surface, free of attachment organisms such as sessile ciliates and cutworms, quick response and strong mobility;
(3) feeding fodder
Feeding the feed twice in the morning and evening every day, wherein the feed is protein feed, the feed is fed twice in the morning and evening every day, the feeding time is 3-5 hours in the morning and 15-18 hours in the evening, the protein feed refers to beans, cake meals, fish meal and the like, the natural water content of the protein feed is lower than 45%, the crude fiber of the protein feed is lower than 18%, and the crude protein content of the protein feed reaches or exceeds 20%;
(4) mating and oviposition
Lowering the water level to 5cm from the bottom of the field, mating with parent shrimps, adjusting the water level to the original water level after 10 days, adjusting the water level line to be optimally 20cm after mating of parent shrimp caves, paving a layer of alternanthera philoxeroides on the bottom of the rice field before adjusting the water level line, and detecting the rice field and added water while adjusting the water level line;
(5) harvesting of seedlings
After mating and spawning are forced in dry fields, conventional feeding management is adopted, when the conventional feeding mode is adopted, sampling detection needs to be carried out on the parent shrimps, and isolation treatment is carried out on the parent shrimps with problems.
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