CN111758629A - Method for quickly breeding procambarus clarkii in rice field by controlling water level and water temperature - Google Patents
Method for quickly breeding procambarus clarkii in rice field by controlling water level and water temperature Download PDFInfo
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- CN111758629A CN111758629A CN202010669918.0A CN202010669918A CN111758629A CN 111758629 A CN111758629 A CN 111758629A CN 202010669918 A CN202010669918 A CN 202010669918A CN 111758629 A CN111758629 A CN 111758629A
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 175
- 241000238030 Procambarus clarkii Species 0.000 title claims abstract description 102
- 235000007164 Oryza sativa Nutrition 0.000 title claims abstract description 60
- 235000009566 rice Nutrition 0.000 title claims abstract description 60
- 238000000034 method Methods 0.000 title claims abstract description 26
- 238000009395 breeding Methods 0.000 title claims description 6
- 230000001488 breeding effect Effects 0.000 title claims description 6
- 240000007594 Oryza sativa Species 0.000 title 1
- 241000209094 Oryza Species 0.000 claims abstract description 59
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 45
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 45
- 239000001301 oxygen Substances 0.000 claims abstract description 45
- 230000001276 controlling effect Effects 0.000 claims abstract description 23
- 239000000523 sample Substances 0.000 claims abstract description 11
- 230000001105 regulatory effect Effects 0.000 claims abstract description 8
- 230000000630 rising effect Effects 0.000 claims abstract description 8
- 238000012258 culturing Methods 0.000 claims abstract description 6
- 241000237858 Gastropoda Species 0.000 claims description 13
- 230000037406 food intake Effects 0.000 claims description 8
- 235000019553 satiation Nutrition 0.000 claims description 6
- 239000002028 Biomass Substances 0.000 claims description 5
- 235000016709 nutrition Nutrition 0.000 claims description 4
- 230000035764 nutrition Effects 0.000 claims description 4
- 206010049040 Weight fluctuation Diseases 0.000 claims description 3
- 238000005070 sampling Methods 0.000 claims description 3
- 230000036186 satiety Effects 0.000 claims description 3
- 235000019627 satiety Nutrition 0.000 claims description 3
- 238000005303 weighing Methods 0.000 claims description 3
- 238000012544 monitoring process Methods 0.000 claims description 2
- 238000009360 aquaculture Methods 0.000 claims 3
- 244000144974 aquaculture Species 0.000 claims 3
- 230000008901 benefit Effects 0.000 abstract description 6
- 230000001737 promoting effect Effects 0.000 description 2
- 241000238017 Astacoidea Species 0.000 description 1
- 241000238424 Crustacea Species 0.000 description 1
- 241000238557 Decapoda Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 241000238565 lobster Species 0.000 description 1
- 235000013372 meat Nutrition 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01K—ANIMAL HUSBANDRY; AVICULTURE; APICULTURE; PISCICULTURE; 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
-
- 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
- A01G22/20—Cereals
- A01G22/22—Rice
-
- 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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- Life Sciences & Earth Sciences (AREA)
- Environmental Sciences (AREA)
- Botany (AREA)
- Marine Sciences & Fisheries (AREA)
- Zoology (AREA)
- Animal Husbandry (AREA)
- Biodiversity & Conservation Biology (AREA)
- Fodder In General (AREA)
Abstract
The invention discloses a method for quickly culturing procambarus clarkii in a rice field by controlling water level and water temperature, which belongs to the technical field of rice field culture of procambarus clarkii and comprises the following steps: s1: selecting seedlings with regular specifications and putting the seedlings into a paddy field with proper density; s2: preparing microporous water lifting and oxygen increasing equipment, and installing an online dissolved oxygen probe to keep the dissolved oxygen of the paddy water body to be more than 5mg/L stably; s3: dynamically regulating the water level, wherein the water temperature is promoted to rise by the low water level in the first stage, the water temperature is stabilized by the water level in the second stage, and the water temperature is prevented from rising by the high water level in the third stage, so that the water temperature and the water space are always matched with the growth of the procambarus clarkii; s4: and (5) carrying out sectional feeding management. According to the method for controlling the water level and the water temperature of the procambarus clarkii in the rice field to rapidly cultivate the procambarus clarkii, the three stages of careful feeding management are carried out for about 30 days, the average specification of the procambarus clarkii can reach 30 tails/kg, the average yield is 125 kg/mu, the cultivation efficiency of the rice field is improved, and the method has great significance for improving the unit yield and the economic benefit of the rice field.
Description
Technical Field
The invention relates to the technical field of paddy field culture of procambarus clarkii, in particular to a method for controlling water level and water temperature of procambarus clarkii in a paddy field to realize rapid culture.
Background
The procambarus clarkia belongs to the class of the arthrobacteria, the class of crustaceans, the family of the crayfishes and the genus of the procambarus clarkia, is also named as procambarus clarkia and is known as procambarus clarkia (hereinafter, the procambarus clarkia collectively) and has delicious meat taste and rich nutrition, is deeply loved by people and is a main variety for culturing the shrimps at present. In recent years, due to the rapid increase of market demand, the natural resources of the procambarus clarkii are rapidly reduced, and the price is gradually increased, so that a method for controlling the water level and the water temperature of the procambarus clarkii in the rice field to rapidly culture the procambarus clarkii is urgently needed to solve the problems.
Disclosure of Invention
The invention aims to provide a method for controlling water level and water temperature of procambarus clarkii in a rice field to rapidly cultivate, through careful feeding management for about 30 days in three stages, the average size of the procambarus clarkii can reach 30 tails/kg, the average yield is 125 kg/mu, the efficiency of rice field cultivation is improved, and the method has great significance for improving the unit yield and economic benefit of the rice field, 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 quickly culturing procambarus clarkii in a rice field by controlling water level and water temperature comprises the following steps:
s1: selecting seedlings with regular specifications, and putting the selected seedlings into a paddy field with proper density;
s2: preparing microporous water lifting and oxygen increasing equipment, installing an online dissolved oxygen probe, keeping the dissolved oxygen in the water body of the rice field stable at more than 5mg/L, and improving the ingestion frequency and the satiation degree of the procambarus clarkii;
s3: dynamically regulating the water level, wherein the water temperature is promoted to rise by the low water level in the first stage, the water temperature is stabilized by the water level in the second stage, and the water temperature is prevented from rising by the high water level in the third stage, so that the water temperature and the water space are always matched with the growth of the procambarus clarkii;
s4: sectional feeding management, namely combining and matching fly maggots, granulated feed and crushed snails, and accurately feeding the feed;
s5: the method is used for quickly cultivating the procambarus clarkii in the rice field.
Further, S1 includes selecting procambarus clarkii fries bred ecologically in the local rice field, controlling the size of the procambarus clarkii fries to be 160-200 fries/kg, controlling the weight fluctuation range of the fries to be within 10%, and throwing 30 kg of procambarus clarkii fries with the size in each mu of rice field.
Further, S2 includes that 6 rice fields are used as a group, the area is controlled to be about 60 mu, a set of micropore water lifting and oxygen increasing equipment is arranged, the power of a blower is 3KW, the water in the rice fields is ensured to be in a circulating flow state, an online dissolved oxygen probe is arranged at the far end away from the micropore water lifting and oxygen increasing equipment, the dissolved oxygen content of the water body is monitored, when the dissolved oxygen of the water body is lower than 5mg/L, the micropore water lifting and oxygen increasing equipment is started for more than 1h, and the feeding frequency of procambarus clarkia in a water body environment with the dissolved oxygen of more than 5mg/L is increased by more than 1 time within a 24; sampling, dissecting and weighing to verify that more than 90 percent of procambarus clarkia has more than 90 percent of satiety.
Further, S3 includes raising the ridges of 6 rice fields to 1.2 m and 2 m, controlling the water level in the rice field to be about 40 cm in the first stage of the procambarus clarkii cultivation for about 10 days, and promoting the water temperature to rise to the optimal growth range of the procambarus clarkii at the low water level; in the second stage, the water level of the rice field is controlled to be about 60 cm in about 10 days, the water temperature is stabilized in the optimal growth range of the procambarus clarkii by the medium water level, and the water space is further expanded to ensure that the biomass of the procambarus clarkii is matched with the water space; and in the third stage, the water level of the rice field is controlled to be about 80 cm in about 10 days, the water temperature is prevented from exceeding the optimal growth range of the procambarus clarkii at a high water level, and the water space is further expanded, so that the biomass of the procambarus clarkii is matched with the water space.
Further, S4 comprises feeding the feed mainly including artificially cultured fly maggots in an amount of 1.5-2.5% of the weight of the Procambarus clarkii colony in the first stage of the Procambarus clarkii culture for about 10 days, wherein the fly maggots have high protein content to promote the rapid growth of the Procambarus clarkii; in the second stage, about 10 days, combined feeding is carried out on the fly maggots and the granulated feed, the ratio of the fly maggots to the granulated feed is 2: 1, the feeding amount is 2.5-3.5 percent of the weight of the Procambrus clarkii colony, and the rapid growth of the Procambrus clarkii is continuously maintained; and in the third stage, about 10 days, feeding granulated feeds with comprehensive nutrition as a main part, and feeding the crushed snails for 1 time every other day, wherein the feeding amount of the granulated feeds is 2.0-2.5 percent of the weight of the Procambrus clarkii group, and the feeding amount of the snails every other day is 3-5 percent of the weight of the Procambrus clarkii group.
Further, S5 includes careful feeding management for 30 days or so through three stages, the average size of the procambarus clarkii can reach 30 tails/kg, the average yield is 125 kg/mu, and the return can be realized by continuing to breed or selling the procambarus clarkii at a high price according to the change of market price.
Compared with the prior art, the invention has the beneficial effects that:
according to the method for controlling the water level and the water temperature of the procambarus clarkii in the rice field to control the rapid culture, seedlings are selected preferably, the specification is regular, and the putting density is appropriate; preparing microporous water lifting and oxygen increasing equipment, installing an online dissolved oxygen probe, keeping the dissolved oxygen in the water body of the rice field stable at more than 5mg/L, and improving the ingestion frequency and the satiation degree of the procambarus clarkii; dynamically regulating the water level, wherein the water temperature is promoted to rise by the low water level in the first stage, the water temperature is stabilized by the water level in the second stage, and the water temperature is prevented from rising by the high water level in the third stage, so that the water temperature and the water space are always matched with the growth of the procambarus clarkii; the procambarus clarkii can be rapidly cultured by the comprehensive technical means of sectional feeding management, combination and matching of fly maggots, granulated feed and crushed snails, accurate feeding of feed and the like; through careful feeding management in three stages for about 30 days, the average size of the procambarus clarkii can reach 30 tails/kg, the average yield is 125 kg/mu, the procambarus clarkii can be continuously cultured or sold at high price according to the change of market price to realize income, the rice field culture efficiency is improved, and the method has great significance for improving the unit yield and the economic benefit of the rice field.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the 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.
A method for quickly culturing procambarus clarkii in a rice field by controlling water level and water temperature comprises the following steps:
s1: selecting seedlings with regular specifications, and putting the selected seedlings into a paddy field with proper density;
s2: preparing microporous water lifting and oxygen increasing equipment, installing an online dissolved oxygen probe, keeping the dissolved oxygen in the water body of the rice field stable at more than 5mg/L, and improving the ingestion frequency and the satiation degree of the procambarus clarkii;
s3: dynamically regulating the water level, wherein the water temperature is promoted to rise by the low water level in the first stage, the water temperature is stabilized by the water level in the second stage, and the water temperature is prevented from rising by the high water level in the third stage, so that the water temperature and the water space are always matched with the growth of the procambarus clarkii;
s4: sectional feeding management, namely combining and matching fly maggots, granulated feed and crushed snails, and accurately feeding the feed;
s5: the method is used for quickly cultivating the procambarus clarkii in the rice field.
By selecting the seedlings preferably, the specification is neat, and the putting density is proper; preparing microporous water lifting and oxygen increasing equipment, installing an online dissolved oxygen probe, keeping the dissolved oxygen in the water body of the rice field stable at more than 5mg/L, and improving the ingestion frequency and the satiation degree of the procambarus clarkii; dynamically regulating the water level, wherein the water temperature is promoted to rise by the low water level in the first stage, the water temperature is stabilized by the water level in the second stage, and the water temperature is prevented from rising by the high water level in the third stage, so that the water temperature and the water space are always matched with the growth of the procambarus clarkii; the procambarus clarkii can be rapidly cultured by the comprehensive technical means of sectional feeding management, combination and matching of fly maggots, granulated feed and crushed snails, accurate feeding of feed and the like; through careful feeding management in three stages for about 30 days, the average size of the procambarus clarkii can reach 30 tails/kg, the average yield is 125 kg/mu, the procambarus clarkii can be continuously cultured or sold at high price according to the change of market price to realize income, the rice field culture efficiency is improved, and the method has great significance for improving the unit yield and the economic benefit of the rice field.
S1 includes selecting procambarus clarkii fries bred in the local rice field ecologically, controlling the specification to be 160-200 fries/kg, controlling the weight fluctuation range of the fries to be within 10%, and throwing 30 kg of the procambarus clarkii fries with the specification in each mu of rice field.
S2 includes using 6 rice fields as a group, controlling the area at about 60 mu, providing a set of micropore water lifting and oxygen increasing equipment, ensuring the water in the rice field to be in a circular flow state with the blower power at 3KW, installing an online dissolved oxygen probe at the far end away from the micropore water lifting and oxygen increasing equipment, monitoring the dissolved oxygen content of the water body, starting the micropore water lifting and oxygen increasing equipment for more than 1h when the dissolved oxygen content of the water body is lower than 5mg/L, and increasing the ingestion frequency of Procambarus clarkii by more than 1 time in the water body environment with the dissolved oxygen content of more than 5mg/L within 24h period; sampling, dissecting and weighing to verify that more than 90 percent of procambarus clarkia has more than 90 percent of satiety.
S3 includes heightening 6 rice field ridges to 1.2 m and 2 m, controlling the water level of the rice field to be about 40 cm in the first stage of the procambarus clarkii cultivation for about 10 days, and promoting the water temperature to rise to the optimal growth range of the procambarus clarkii at a low water level; in the second stage, the water level of the rice field is controlled to be about 60 cm in about 10 days, the water temperature is stabilized in the optimal growth range of the procambarus clarkii by the medium water level, and the water space is further expanded to ensure that the biomass of the procambarus clarkii is matched with the water space; and in the third stage, the water level of the rice field is controlled to be about 80 cm in about 10 days, the water temperature is prevented from exceeding the optimal growth range of the procambarus clarkii at a high water level, and the water space is further expanded, so that the biomass of the procambarus clarkii is matched with the water space.
S4 includes that in the first stage of the procambarus clarkii culture for about 10 days, the feed is fed mainly by artificially cultured fly maggots, the feeding amount is 1.5-2.5% of the weight of the procambarus clarkii population, and the fly maggots have high protein content to promote the procambarus clarkii to grow rapidly; in the second stage, about 10 days, combined feeding is carried out on the fly maggots and the granulated feed, the ratio of the fly maggots to the granulated feed is 2: 1, the feeding amount is 2.5-3.5 percent of the weight of the Procambrus clarkii colony, and the rapid growth of the Procambrus clarkii is continuously maintained; and in the third stage, about 10 days, feeding granulated feeds with comprehensive nutrition as a main part, and feeding the crushed snails for 1 time every other day, wherein the feeding amount of the granulated feeds is 2.0-2.5 percent of the weight of the Procambrus clarkii group, and the feeding amount of the snails every other day is 3-5 percent of the weight of the Procambrus clarkii group.
S5 includes the careful feeding management of 30 days after three stages, the average size of the procambarus clarkii can reach 30 tails/kg, the average yield is 125 kg/mu, and the return can be realized by continuing to breed or selling the procambarus clarkii at high price according to the change of market price.
By adopting the method in the experiment demonstration area of the lobster cooperative, 313 mu in 2012 to 2016, the specification of the fed procambarus clarkii fries is controlled to be 160-200 tails/kg, and the fluctuation range of the weight of the fries is controlled to be within 10 percent; 30 kg of procambarus clarkii fries with the above specification are put in each mu of rice field; preparing microporous water lifting and oxygen increasing equipment, and installing an online dissolved oxygen probe to keep the dissolved oxygen of the paddy water body to be more than 5mg/L stably; dynamically regulating the water level, wherein the water temperature is promoted to rise by the low water level in the first stage, the water temperature is stabilized by the water level in the second stage, and the water temperature is prevented from rising by the high water level in the third stage, so that the water temperature and the water space are always matched with the growth of the procambarus clarkii; sectional feeding management, namely combining and matching fly maggots, granulated feed and crushed snails, and accurately feeding the feed; the procambarus clarkii is bred to reach the average specification of 30/kg, the average yield is 125 kg/mu, the breeding time is 29-33 days, the market high price opportunity is grasped, the 7-money starting and the currency price of the procambarus clarkii are 60 yuan/kg in the early market, and the mu yield value reaches 7500 yuan.
In conclusion, the method for quickly culturing the procambarus clarkii in the rice field by controlling the water level and the water temperature has the advantages that the fingerlings are optimized, the specification is uniform, and the putting density is proper; preparing microporous water lifting and oxygen increasing equipment, installing an online dissolved oxygen probe, keeping the dissolved oxygen in the water body of the rice field stable at more than 5mg/L, and improving the ingestion frequency and the satiation degree of the procambarus clarkii; dynamically regulating the water level, wherein the water temperature is promoted to rise by the low water level in the first stage, the water temperature is stabilized by the water level in the second stage, and the water temperature is prevented from rising by the high water level in the third stage, so that the water temperature and the water space are always matched with the growth of the procambarus clarkii; the procambarus clarkii can be rapidly cultured by the comprehensive technical means of sectional feeding management, combination and matching of fly maggots, granulated feed and crushed snails, accurate feeding of feed and the like; through careful feeding management in three stages for about 30 days, the average size of the procambarus clarkii can reach 30 tails/kg, the average yield is 125 kg/mu, the procambarus clarkii can be continuously cultured or sold at high price according to the change of market price to realize income, the rice field culture efficiency is improved, and the method has great significance for improving the unit yield and the economic benefit of the rice field.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be able to cover the technical solutions and the inventive concepts of the present invention within the technical scope of the present invention.
Claims (6)
1. A method for quickly culturing procambarus clarkii in a rice field by controlling water level and water temperature is characterized by comprising the following steps:
s1: selecting seedlings with regular specifications, and putting the selected seedlings into a paddy field with proper density;
s2: preparing microporous water lifting and oxygen increasing equipment, installing an online dissolved oxygen probe, keeping the dissolved oxygen in the water body of the rice field stable at more than 5mg/L, and improving the ingestion frequency and the satiation degree of the procambarus clarkii;
s3: dynamically regulating the water level, wherein the water temperature is promoted to rise by the low water level in the first stage, the water temperature is stabilized by the water level in the second stage, and the water temperature is prevented from rising by the high water level in the third stage, so that the water temperature and the water space are always matched with the growth of the procambarus clarkii;
s4: sectional feeding management, namely combining and matching fly maggots, granulated feed and crushed snails, and accurately feeding the feed;
s5: the method is used for quickly cultivating the procambarus clarkii in the rice field.
2. The method for water level and water temperature controlled rapid breeding of procambarus clarkii in a rice field according to claim 1, wherein S1 comprises selecting the procambarus clarkii fries bred ecologically in the local rice field, controlling the specification to be 160-200 fries/kg, controlling the weight fluctuation range of the fries to be within 10%, and feeding 30 kg of the procambarus clarkii fries with the above specification in each mu of rice field.
3. The method for water level and temperature control rapid cultivation of procambarus clarkii in a rice field according to claim 1, wherein S2 comprises using 6 rice fields as a group, controlling the area to be about 60 mu, providing a set of microporous water lifting and oxygen increasing equipment, controlling the blower power to be 3KW, ensuring that the water in the rice field is in a circulating flow state, installing an online dissolved oxygen probe at the far end away from the microporous water lifting and oxygen increasing equipment, monitoring the dissolved oxygen content of the water body, starting the microporous water lifting and oxygen increasing equipment for more than 1h when the dissolved oxygen content of the water body is lower than 5mg/L, and increasing the ingestion frequency of the procambarus clarkii by more than 1 time in the water body environment with the dissolved oxygen content of more than 5mg/L within 24h period; sampling, dissecting and weighing to verify that more than 90 percent of procambarus clarkia has more than 90 percent of satiety.
4. The method for water level and water temperature controlled rapid aquaculture of procambarus clarkii in rice fields according to claim 1, wherein S3 comprises raising the height of 6 ridges at the periphery of the rice field to 1.2 m and widening to 2 m, controlling the water level of the rice field to be about 40 cm in the first stage of the procambarus clarkii aquaculture for about 10 days, and raising the water temperature to the optimum growth range of the procambarus clarkii at a low water level; in the second stage, the water level of the rice field is controlled to be about 60 cm in about 10 days, the water temperature is stabilized in the optimal growth range of the procambarus clarkii by the medium water level, and the water space is further expanded to ensure that the biomass of the procambarus clarkii is matched with the water space; and in the third stage, the water level of the rice field is controlled to be about 80 cm in about 10 days.
5. The method for water level and temperature controlled rapid breeding of procambarus clarkii in a paddy field as claimed in claim 1, wherein S4 comprises feeding the procambarus clarkii during the first stage of the breeding for about 10 days, wherein the feeding is mainly made of artificially cultured fly maggots, the amount of the feeding is 1.5-2.5% of the weight of the procambarus clarkii population, and the protein content of the fly maggots promotes the rapid growth of the procambarus clarkii; in the second stage, about 10 days, combined feeding is carried out on the fly maggots and the granulated feed, the ratio of the fly maggots to the granulated feed is 2: 1, the feeding amount is 2.5-3.5 percent of the weight of the Procambrus clarkii colony, and the rapid growth of the Procambrus clarkii is continuously maintained; and in the third stage, about 10 days, feeding granulated feeds with comprehensive nutrition as a main part, and feeding the crushed snails for 1 time every other day, wherein the feeding amount of the granulated feeds is 2.0-2.5 percent of the weight of the Procambrus clarkii group, and the feeding amount of the snails every other day is 3-5 percent of the weight of the Procambrus clarkii group.
6. The method for water level and temperature controlled rapid aquaculture of procambarus clarkii in rice field as claimed in claim 1 wherein S5 comprises three stages of intensive feeding management for about 30 days, the average size of procambarus clarkii can reach 30 tails/kg, and the average yield is 125 kg/mu.
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| CN112655618A (en) * | 2020-12-17 | 2021-04-16 | 中国水产科学研究院珠江水产研究所 | Method for controlling safe summer-time of freshwater crayfishes cultured in south rice field |
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