CN108338107B - Efficient material checking technology for pond culture of macrobrachium rosenbergii - Google Patents
Efficient material checking technology for pond culture of macrobrachium rosenbergii Download PDFInfo
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- 239000000463 material Substances 0.000 title claims abstract description 88
- 241001327110 Macrobrachium rosenbergii Species 0.000 title claims abstract description 35
- 238000005516 engineering process Methods 0.000 title abstract description 4
- 238000000034 method Methods 0.000 claims abstract description 33
- 230000008569 process Effects 0.000 claims abstract description 29
- 238000004519 manufacturing process Methods 0.000 claims abstract description 9
- 239000002245 particle Substances 0.000 claims description 50
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 22
- 230000003014 reinforcing effect Effects 0.000 claims description 6
- 230000005484 gravity Effects 0.000 claims 1
- 230000008901 benefit Effects 0.000 abstract description 3
- 230000001737 promoting effect Effects 0.000 abstract description 2
- 241000238557 Decapoda Species 0.000 description 9
- 230000001488 breeding effect Effects 0.000 description 6
- 238000009395 breeding Methods 0.000 description 5
- 238000007689 inspection Methods 0.000 description 5
- 241000238559 Macrobrachium Species 0.000 description 3
- 239000004744 fabric Substances 0.000 description 2
- 239000003351 stiffener Substances 0.000 description 2
- 208000035240 Disease Resistance Diseases 0.000 description 1
- 241000530454 Litopenaeus schmitti Species 0.000 description 1
- 241001465754 Metazoa Species 0.000 description 1
- 238000009360 aquaculture Methods 0.000 description 1
- 244000144974 aquaculture Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000010794 food waste Substances 0.000 description 1
- 230000002431 foraging effect Effects 0.000 description 1
- 239000013505 freshwater Substances 0.000 description 1
- 235000003642 hunger Nutrition 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000037351 starvation Effects 0.000 description 1
- 230000004083 survival effect Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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- 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
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- 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
- A01K61/80—Feeding devices
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
- Y02A40/80—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in fisheries management
- Y02A40/81—Aquaculture, e.g. of fish
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- Environmental Sciences (AREA)
- Marine Sciences & Fisheries (AREA)
- Zoology (AREA)
- Animal Husbandry (AREA)
- Biodiversity & Conservation Biology (AREA)
- Feeding And Watering For Cattle Raising And Animal Husbandry (AREA)
- Farming Of Fish And Shellfish (AREA)
Abstract
The invention discloses a high-efficiency material checking process for pond culture of macrobrachium rosenbergii, which comprises the steps of manufacturing a material checking device and checking materials by using the material checking device. The material checking device is simple to manufacture, low in cost and capable of being manufactured by farmers; the use method of the material checking device is simple and convenient for the use of the pond mouth; the material checking technology is simple and convenient, and has strong practicability and universality; the feeding process accurately judges the feeding condition of the macrobrachium rosenbergii, prevents the phenomena of insufficient feed and residual feed, and improves the utilization efficiency of the feed, thereby promoting the healthy and rapid growth of the macrobrachium rosenbergii, increasing the cultivation income of farmers and improving the ecological benefit of cultivation environment.
Description
Technical Field
The invention relates to the technical field of macrobrachium rosenbergii cultivation, in particular to a high-efficiency feed searching process for pond cultivation of macrobrachium rosenbergii.
Background
Macrobrachium rosenbergii (Macrobrachium rosenbergii) is also named as Malaysia macrobrachium malayi, is a omnivorous and bottom foraging animal, has the advantages of large individual, rapid growth, strong disease resistance and the like, and is now one of important economic shrimps in aquaculture in China. The main culture mode of the macrobrachium rosenbergii in China is pond culture, the feed demand is large, and the characteristic of no starvation resistance of the macrobrachium rosenbergii provides strict requirements for the determination of proper feeding amount. The excessive feeding amount not only causes feed waste and increases the cultivation cost, but also causes the residual baits to increase the water body load and deteriorate the pond bottom, thereby causing the occurrence of the diseases of the macrobrachium; the insufficient feeding amount can cause significant size difference of individuals, aggravate the food residue and cause the reduction of survival rate. In a word, too much or insufficient feed can seriously affect the breeding effect of the macrobrachium rosenbergii.
However, the current method for determining the proper feeding amount in the breeding process of macrobrachium rosenbergii mainly comprises the following steps: 1. placing a material table, and periodically checking the feed amount in the material table to determine, wherein the disadvantage is that: the material table has single site, can not represent the eating condition of the whole pond, and if omnivorous fishes exist in the water body, the judgment of a breeder can be influenced by the feed in the material table; 2. depending on abundant experience judgment, the farmers with abundant experience can determine the feeding amount according to the seedling amount and the individual sizes of the macrobrachium in different stages, and the effect is good, but the feeding amount is not easy for the farmers with the time of going into the line.
Disclosure of Invention
The invention aims to provide a high-efficiency feed searching process for pond culture of macrobrachium rosenbergii, which improves the feed utilization rate in the pond culture process, increases the culture benefit and improves the water environment.
The technical scheme adopted for solving the technical problems is as follows:
the efficient material checking process for pond culture of macrobrachium rosenbergii comprises the steps of manufacturing a material checking device and checking materials by using the material checking device, wherein the material checking parameters are set as follows:
the material checking time is 2-3 hours after each feeding, 10-20 material checking points are randomly selected along the periphery of the pond, and the interval between adjacent material checking points is 5-20m;
the material checking process comprises the following steps: the checking hopper is downwards filled with water and contacts with the bottom of the pond, the checking hopper is slowly dragged to the shore at a constant speed along the bottom of the pond, mud in the checking hopper is cleaned, the checking hopper is slowly moved downwards along the water surface, and the number of collected feed particles is observed and recorded;
if the number of the feed particles is more than 30 particles/time, the feeding amount is reduced in the next feeding, and the reduced feeding amount is 85-90% of the feeding amount of the previous time in the same time period;
if the quantity of the feed particles is detected to be 5-30 particles/time, checking the feed once again at the same position before feeding in the afternoon or before feeding in the morning in the next day, if the feed particles are not found once again to indicate that the feeding quantity is proper, otherwise, reducing the next feeding quantity which is 90-95% of the previous feeding quantity in the same time period;
if the number of the feed particles is less than 5 particles/time, the feeding amount is proper;
if no feed particles are detected, the feeding amount should be increased next time, the increasing amount is 5-10% of the feeding amount of the previous time in the same time period, and the feeding amount should be checked again after the feeding amount is increased to determine whether the feeding amount is proper.
Through the material checking process developed by the invention, the breeding personnel can accurately evaluate whether usual experience breeding is reasonable or not, accurately judge the feeding condition of the macrobrachium rosenbergii, prevent the phenomena of insufficient feed and residual feed, improve the utilization efficiency of the feed, promote the healthy and rapid growth of the macrobrachium rosenbergii, increase the breeding income and improve the water environment.
The material checking process is also suitable for breeding lobsters, white shrimps and the like.
Preferably, the speed of dragging the checking hopper along the bottom of the pond at a constant speed is 15-20cm/s during checking.
Preferably, the speed of slowly moving the checking hopper downwards along the water surface during checking is 5-10cm/s.
Preferably, the material checking device comprises a long rod, the front end of the long rod is a handheld part, a checking hopper is fixed at the rear end of the long rod, a floater is hung at the fixing position of the checking hopper and the long rod, the checking hopper is of a frame structure and comprises a linear supporting rod, a front arc supporting rod and a rear arc supporting rod, the two ends of the front arc supporting rod are welded with the two ends of the linear supporting rod respectively to form a checking hopper front surface, the two ends of the rear arc supporting rod are welded with the two ends of the linear supporting rod respectively to form a checking hopper rear surface, a checking hopper side surface is formed between the front arc supporting rod and the rear arc supporting rod, a screen is arranged on the checking hopper rear surface and the checking hopper side surface, and the arc top of the front arc supporting rod and the arc top of the rear arc supporting rod are fixed with the rear end of the long rod.
Preferably, the included angle between the rear surface of the checking hopper and the front surface of the checking hopper is smaller than 30 degrees.
Preferably, a rear reinforcing rod is arranged between the arc top of the rear arc-shaped supporting rod and the midpoint of the linear supporting rod.
Preferably, a plurality of side reinforcing rods are arranged between the rear arc-shaped supporting rod and the front arc-shaped supporting rod.
Preferably, the buoyancy generated when the float is fully immersed in water does not exceed the weight of the inspection hopper.
Preferably, the length of the long rod is 6-12 m. Preferably, the long rod is a telescopic rod, and is telescopic.
Preferably, the pond culture of the macrobrachium rosenbergii is fed twice a day, the feeding time in the morning is 6:00 to 8:00, and the feeding time in the afternoon is 17:00 to 18:00. The feeding amount in the morning is 30-40% of the feeding amount in the whole day, and the feeding amount in the afternoon is 60-70% of the feeding amount in the whole day.
The beneficial effects of the invention are as follows: the material checking device is simple to manufacture and low in cost, and a farmer can manufacture the material checking device by himself; the use method of the material checking device is simple and convenient for the use of the pond mouth; the material checking technology is simple and convenient, and has strong practicability and universality; the feeding process accurately judges the feeding condition of the macrobrachium rosenbergii, prevents the phenomena of insufficient feed and residual feed, and improves the utilization efficiency of the feed, thereby promoting the healthy and rapid growth of the macrobrachium rosenbergii, increasing the cultivation income of farmers and improving the ecological environment of water bodies.
Drawings
Fig. 1 is a schematic view of a structure of the present invention.
Fig. 2 is a schematic structural view of the inspection hopper of the present invention.
In the figure: 1. pond, 2, inspection hopper, 3, float, 4, stock, 5, straight line branch, 6, back arc branch, 7, preceding arc branch, 8, back stiffener, 9, side stiffener, 10, back screen cloth, 11, side screen cloth.
Detailed Description
The technical scheme of the invention is further specifically described by the following specific examples.
In the present invention, the materials and equipment used are commercially available or commonly used in the art, unless otherwise specified. The methods in the following examples are conventional in the art unless otherwise specified.
Example 1:
the efficient material checking process for pond culture of macrobrachium rosenbergii comprises the steps of manufacturing a material checking device and checking materials by using the material checking device, wherein the material checking parameters are set as follows:
the material checking time is 2 hours after each feeding, 10 material checking points are randomly selected along the periphery of the pond, four corners of the pond need to be checked, and the interval between adjacent material checking points is 20m; generally, the pond culture of the macrobrachium rosenbergii is fed twice a day, the feeding time in the morning is 6:00 to 8:00, and the feeding time in the afternoon is 17:00 to 18:00. The feeding amount in the morning is 30-40% of the feeding amount in the whole day, and the feeding amount in the afternoon is 60-70% of the feeding amount in the whole day.
The material checking process comprises the following steps: the checking hopper is downwards filled with water and contacts with the bottom of the pond, the checking hopper is slowly dragged to the shore at a constant speed along the bottom of the pond, mud in the checking hopper is cleaned, the checking hopper is slowly moved downwards along the water surface, and the number of collected feed particles is observed and recorded.
If the number of the feed particles is more than 30 particles/time, the feeding amount is reduced in the next feeding, and the reduced feeding amount is 85% of the feeding amount in the previous time (in the same time period).
If the quantity of the feed particles is detected to be 5-30 particles/time, checking the feed once again at the same position before feeding in the afternoon or before feeding in the morning in the next day, if the feed particles are not found once again, the feed particles are not indicated to be suitable in feeding quantity, otherwise, the next feeding quantity is reduced, and the next feeding quantity is 90% of the previous feeding quantity (in the same time period);
if the number of the feed particles is less than 5 particles/time, the feeding amount is proper.
If no feed particles are detected, the feeding amount is increased next time, the increasing amount is 5% of the feeding amount of the previous time (in the same time period), and after the feeding amount is increased, the feeding amount is checked again to determine whether the feeding amount is proper.
The material checking device structure of the invention is shown in figure 1, and comprises a long rod 4, the length of the long rod is 6-12m, the long rod is telescopic, the front end of the long rod is a hand-held part, a material checking hopper 2 is fixed at the rear end of the long rod, and a floater 3 is hung at the fixed position of the material checking hopper and the long rod. The buoyancy generated when the floater completely enters water does not exceed the weight of the checking hopper.
The structure of the checking hopper is shown in fig. 2, the checking hopper is of a frame structure and comprises a linear supporting rod 5, a front arc supporting rod 7 and a rear arc supporting rod 6. The two ends of the front arc-shaped supporting rod 7 are respectively welded with the two ends of the linear supporting rod 5 to form a front surface of the checking hopper, the two ends of the rear arc-shaped supporting rod 6 are respectively welded with the two ends of the linear supporting rod 5 to form a rear surface of the checking hopper, and a rear reinforcing rod 8 is arranged between the arc top of the rear arc-shaped supporting rod 6 and the midpoint of the linear supporting rod 5. The included angle between the rear surface of the checking hopper and the front surface of the checking hopper is smaller than 30 degrees. A side surface of the checking hopper is formed between the front arc-shaped supporting rod 7 and the rear arc-shaped supporting rod 6, and a plurality of side reinforcing rods 9 are arranged between the rear arc-shaped supporting rod and the front arc-shaped supporting rod. The rear surface of the checking hopper is wrapped with a rear screen 10, the side surface of the checking hopper is provided with a side screen 11, and the side screen and the rear screen are integrally formed. The arc tops of the front arc-shaped supporting rod 7 and the rear arc-shaped supporting rod 6 are fixed with the rear end of the long rod.
The use state of the material checking device is shown in fig. 1, and when checking materials, the material checking hopper is extended to the farthest distance of the pond feed feeding area as far as possible, the material checking hopper is ensured to face downwards, and the length of the float hanging wire is ensured to be capable of completely entering water. The linear supporting rod of the checking hopper is dragged along the bottom of the pond at a speed of 15-20cm/s, the linear supporting rod is dragged to the shore, the long rod is gently rocked upwards to clean mud in the checking hopper, the checking hopper is moved downwards at a speed of 5-10cm/s along the water surface after the cleaning, if feed particles float in the process, and in addition, whether feed exists can be determined by carefully observing the objects in the checking hopper.
Example 2:
the efficient material checking process for pond culture of macrobrachium rosenbergii comprises the steps of manufacturing a material checking device and checking materials by using the material checking device, wherein the material checking parameters are set as follows:
the material checking time is 3 hours after each feeding, 20 material checking points are randomly selected along the periphery of the pond, four corners of the pond need to be checked, and the interval between adjacent material checking points is 5m.
The material checking process comprises the following steps: the checking hopper is downwards filled with water and contacts with the bottom of the pond, the checking hopper is slowly dragged to the shore at a constant speed along the bottom of the pond, mud in the checking hopper is cleaned, the checking hopper is slowly moved downwards along the water surface, and the number of collected feed particles is observed and recorded.
If the number of the feed particles is more than 30 particles/time, the feeding amount is reduced in the next feeding, and the reduced feeding amount is 90% of the feeding amount in the previous time (in the same time period).
If the quantity of the feed particles is detected to be 5-30 particles/time, checking the feed again at the same position before feeding in the afternoon or before feeding in the morning in the next day, if the feed particles are not found once again, the feed particles are not indicated to be suitable in feeding quantity, otherwise, the next feeding quantity is reduced, and the next feeding quantity is 95% of the previous feeding quantity (in the same time period).
If the number of the feed particles is less than 5 particles/time, the feeding amount is proper.
If no feed particles are detected, the feeding amount is increased next time, the increasing amount is 10% of the feeding amount of the previous time (in the same time period), and after the feeding amount is increased, the feeding amount is checked again to determine whether the feeding amount is proper.
Example 3:
the efficient material checking process for pond culture of macrobrachium rosenbergii comprises the steps of manufacturing a material checking device and checking materials by using the material checking device, wherein the material checking parameters are set as follows:
the material checking time is 3 hours after each feeding, 15 material checking points are randomly selected along the periphery of the pond, four corners of the pond need to be checked, and the interval between adjacent material checking points is 10m.
The material checking process comprises the following steps: the checking hopper is downwards filled with water and contacts with the bottom of the pond, the checking hopper is slowly dragged to the shore at a constant speed along the bottom of the pond, mud in the checking hopper is cleaned, the checking hopper is slowly moved downwards along the water surface, and the number of collected feed particles is observed and recorded.
If the number of the feed particles is more than 30 particles/time, the feeding amount is reduced in the next feeding, and the reduced feeding amount is 87% of the feeding amount in the previous feeding (in the same time period).
If the quantity of the feed particles is detected to be 5-30 particles/time, checking the feed again at the same position before feeding in the afternoon or before feeding in the morning in the next day, if the feed particles are not found once again, the feed particles are not indicated to be suitable in feeding quantity, otherwise, the next feeding quantity is reduced, and the next feeding quantity is 92% of the previous feeding quantity (in the same time period).
If the number of the feed particles is less than 5 particles/time, the feeding amount is proper.
If no feed particles are detected, the feeding amount is increased next time, the increased feeding amount is 7% of the feeding amount of the previous time (in the same time period), and after the feeding amount is increased, the feeding amount is checked again to determine whether the feeding amount is proper.
Cultivation test
1. The cultivation sites are located in Wu Xingou provincial modern agriculture comprehensive areas in Zhejiang lake city, 6 Macrobrachium rosenbergii cultivation ponds are selected and named as 1#, 2#, 3#, 4#, 5# and 6#, and the areas of the cultivation sites are 5.95 mu, 6.4 mu, 6.9 mu, 7.2 mu, 7.3 mu and 8.1 mu respectively. And (3) taking the shrimp seedlings in a mode of directly planting the shrimp seedlings in the No. 7 of 6 months in 2017, wherein the planting specification of each mu is between 0.8 and 1.0cm, and 30000 shrimp seedlings. The 6 ponds are divided into two groups, wherein 1#, 3#, 5#3 ponds are divided into one group, 2#, 4#, 6#, 3 ponds are divided into two groups, and 2 technicians are respectively assigned for cultivation management.
2. The cultivation is carried out for about 36 days, at this time, the shrimp larvae are about 5cm long, and a group of ponds are selected to carry out material inspection management by adopting the efficient material inspection process for pond cultivation of macrobrachium rosenbergii. Meanwhile, two groups of ponds are not changed, and management is mainly carried out according to the material table and experience of technicians in the aspect of material checking.
3. After about 120 days of cultivation, the acre yield of the giant freshwater shrimps cultivated in a group of 3 ponds is 331.3kg, 356.8kg and 359.6kg, the bait coefficients are 1.27, 1.22 and 1.25 respectively, and the feed cost of the shrimps cultivated in unit yield is about 9.97 yuan/kg (the feed price is 8000 yuan/ton); the acre yield of the two groups of 3 ponds is 296.2kg, 325.8kg and 320.7kg respectively, the bait coefficients are 1.47, 1.35 and 1.41 respectively, and the feed cost of the shrimp in the cultivation unit yield is about 11.28 yuan/kg. Therefore, the feed cost for feeding management by using the feed checking process is reduced by 11.61%.
The above-described embodiment is only a preferred embodiment of the present invention, and is not limited in any way, and other variations and modifications may be made without departing from the technical aspects set forth in the claims.
Claims (8)
1. The efficient material checking process for pond culture of macrobrachium rosenbergii is characterized by comprising the steps of manufacturing a material checking device and checking materials by using the material checking device, wherein the material checking parameters are set as follows:
the material checking time is 2-3 hours after each feeding, 10-20 material checking points are randomly selected along the periphery of the pond, and the interval between adjacent material checking points is 5-20m;
the material checking process comprises the following steps: the checking hopper is downwards filled with water and contacts with the bottom of the pond, the checking hopper is slowly dragged to the shore at a constant speed along the bottom of the pond, mud in the checking hopper is cleaned, the checking hopper is slowly moved downwards along the water surface, and the number of collected feed particles is observed and recorded;
if the number of the feed particles is more than 30 particles/time, the feeding amount is reduced in the next feeding, and the reduced feeding amount is 85-90% of the feeding amount of the previous time in the same time period;
if the quantity of the feed particles is detected to be 5-30 particles/time, checking the feed once again at the same position before feeding in the afternoon or before feeding in the morning in the next day, if the feed particles are not found once again, the feed feeding quantity is proper, if the feed particles are found once again, the next feed feeding quantity is reduced, and the next feed feeding quantity is 90-95% of the previous feed feeding quantity in the same time period;
if the number of the feed particles is less than 5 particles/time, the feeding amount is proper;
if no feed particles are detected, the feeding amount is increased next time, the increasing amount is 5-10% of the feeding amount of the previous time in the same time period, and after the feeding amount is increased, the feeding amount is checked again to determine whether the feeding amount is proper or not;
feeding the macrobrachium rosenbergii twice a day in pond culture, wherein the feeding time in the morning is 6:00 to 8:00, and the feeding time in the afternoon is 17:00 to 18:00;
the material checking device comprises a long rod, the front end of the long rod is a handheld part, a checking hopper is fixed at the rear end of the long rod, a floater is hung at the fixing position of the checking hopper and the long rod, the checking hopper is of a frame structure and comprises a linear supporting rod, a front arc supporting rod and a rear arc supporting rod, the two ends of the front arc supporting rod are welded with the two ends of the linear supporting rod respectively to form a checking hopper front surface, the two ends of the rear arc supporting rod are welded with the two ends of the linear supporting rod respectively to form a checking hopper rear surface, a checking hopper side surface is formed between the front arc supporting rod and the rear arc supporting rod, a screen is arranged on the checking hopper rear surface and the checking hopper side surface, and the arc top of the front arc supporting rod and the arc top of the rear arc supporting rod are fixed with the rear end of the long rod.
2. The efficient material checking process for pond culture of macrobrachium rosenbergii, which is characterized in that the speed of dragging the checking hopper along the pond bottom slowly and uniformly during material checking is 15-20cm/s.
3. The efficient material checking process for pond culture of macrobrachium rosenbergii, according to claim 1, wherein the speed of slowly moving the checking hopper downwards along the water surface during material checking is 5-10cm/s.
4. The efficient material checking process for pond culture of macrobrachium rosenbergii of claim 1, wherein an included angle between the rear surface of the material checking hopper and the front surface of the material checking hopper is smaller than 30 degrees.
5. The efficient material checking process for pond culture of macrobrachium rosenbergii of claim 1, wherein a rear reinforcing rod is arranged between the arc top of the rear arc-shaped supporting rod and the midpoint of the straight supporting rod.
6. The efficient material checking process for pond culture of macrobrachium rosenbergii of claim 1, wherein a plurality of side reinforcing rods are arranged between the rear arc-shaped supporting rods and the front arc-shaped supporting rods.
7. The efficient material checking process for pond culture of macrobrachium rosenbergii according to claim 1, wherein the buoyancy generated when the floater completely enters water does not exceed the gravity of the checking hopper.
8. The efficient feed searching process for pond culture of macrobrachium rosenbergii, which is characterized in that the length of the long rod is 6-12 meters.
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| CN104488768A (en) * | 2014-11-27 | 2015-04-08 | 广德德品水产养殖专业合作社 | Culturing method of macrobrachium rosenbergii |
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