CN113576002A - Device and method for preparing hirudo nipponia bait - Google Patents
Device and method for preparing hirudo nipponia bait Download PDFInfo
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- CN113576002A CN113576002A CN202110920658.4A CN202110920658A CN113576002A CN 113576002 A CN113576002 A CN 113576002A CN 202110920658 A CN202110920658 A CN 202110920658A CN 113576002 A CN113576002 A CN 113576002A
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- 241000146385 Hirudo nipponia Species 0.000 title claims abstract description 28
- 238000000034 method Methods 0.000 title claims abstract description 18
- 210000004369 blood Anatomy 0.000 claims abstract description 74
- 239000008280 blood Substances 0.000 claims abstract description 74
- 230000029087 digestion Effects 0.000 claims abstract description 31
- 241000237903 Hirudo Species 0.000 claims abstract description 18
- 238000003860 storage Methods 0.000 claims description 29
- 238000001914 filtration Methods 0.000 claims description 17
- 235000013580 sausages Nutrition 0.000 claims description 17
- 238000005520 cutting process Methods 0.000 claims description 13
- 241001465754 Metazoa Species 0.000 claims description 11
- 230000006835 compression Effects 0.000 claims description 7
- 238000007906 compression Methods 0.000 claims description 7
- 210000003743 erythrocyte Anatomy 0.000 claims description 6
- 239000000706 filtrate Substances 0.000 claims description 6
- 241000237902 Hirudo medicinalis Species 0.000 claims description 2
- 238000002360 preparation method Methods 0.000 abstract description 13
- 230000004083 survival effect Effects 0.000 abstract description 13
- 235000015249 blood sausages Nutrition 0.000 abstract description 5
- 238000001816 cooling Methods 0.000 abstract description 3
- 238000010521 absorption reaction Methods 0.000 abstract description 2
- 238000005345 coagulation Methods 0.000 abstract description 2
- 230000015271 coagulation Effects 0.000 abstract description 2
- 239000007788 liquid Substances 0.000 description 16
- 241000545744 Hirudinea Species 0.000 description 13
- 238000003825 pressing Methods 0.000 description 5
- 239000004677 Nylon Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 238000002474 experimental method Methods 0.000 description 4
- 229920001778 nylon Polymers 0.000 description 4
- 238000000926 separation method Methods 0.000 description 4
- 238000009395 breeding Methods 0.000 description 3
- 230000001488 breeding effect Effects 0.000 description 3
- 238000002791 soaking Methods 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- 238000002604 ultrasonography Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000037396 body weight Effects 0.000 description 2
- 210000000936 intestine Anatomy 0.000 description 2
- 238000009360 aquaculture Methods 0.000 description 1
- 244000144974 aquaculture Species 0.000 description 1
- 238000012258 culturing Methods 0.000 description 1
- 229940079593 drug Drugs 0.000 description 1
- 230000004060 metabolic process Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 238000009466 skin packaging Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
Classifications
-
- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23N—MACHINES OR APPARATUS FOR TREATING HARVESTED FRUIT, VEGETABLES OR FLOWER BULBS IN BULK, NOT OTHERWISE PROVIDED FOR; PEELING VEGETABLES OR FRUIT IN BULK; APPARATUS FOR PREPARING ANIMAL FEEDING- STUFFS
- A23N17/00—Apparatus specially adapted for preparing animal feeding-stuffs
-
- 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
- A23K10/24—Animal feeding-stuffs from material of animal origin from blood
-
- 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
-
- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23N—MACHINES OR APPARATUS FOR TREATING HARVESTED FRUIT, VEGETABLES OR FLOWER BULBS IN BULK, NOT OTHERWISE PROVIDED FOR; PEELING VEGETABLES OR FRUIT IN BULK; APPARATUS FOR PREPARING ANIMAL FEEDING- STUFFS
- A23N17/00—Apparatus specially adapted for preparing animal feeding-stuffs
- A23N17/005—Apparatus specially adapted for preparing animal feeding-stuffs for shaping by moulding, extrusion, pressing, e.g. pellet-mills
Abstract
The invention discloses a device and a method for preparing hirudo nipponica bait. The method can keep constant temperature in the preparation process, and prevent coagulation phenomenon caused by blood cooling; meanwhile, the blood is digested by ultrasonic waves on the basis of constant temperature, so that the digestion and absorption of bait by the hirudo nipponia are improved, the utilization rate of the blood and the survival rate of the hirudo nipponia are improved, and the culture yield is further improved; in addition, compared with the manual preparation of 'blood sausage', the device has higher automation degree, reduces the expenditure of labor cost, ensures the quality of bait and leads the quality of the blood sausage to be more uniform.
Description
Technical Field
The invention relates to the technical field of aquaculture, in particular to a device and a method for preparing hirudo nipponia bait.
Background
In recent years, the research institute of drug planting in Chongqing city successfully breaks through the technical bottleneck of artificial breeding of the hirudo nipponia, popularizes an indoor box body breeding mode of the hirudo nipponia, greatly improves the breeding yield of the hirudo nipponia and saves the labor cost. However, the output of the existing artificially cultured leeches of Japanese medicinals still cannot meet the market demand, and in view of the fact that feeding of the leeches of Japanese medicinals requires a large amount of manpower to manually make the blood intestines on site, the quality of the blood intestines is greatly different due to different technical proficiency degrees of different technical workers, and the survival rate of culturing the leeches of Japanese medicinals is further influenced. Therefore, research and development of artificial bait machine for hirudo nipponica are carried out, so that the bait utilization rate of the hirudo nipponica and the culture yield of the hirudo nipponica are improved.
Chinese patent No. CN201811547711.5 discloses a bait preparation method for blood sucking leeches and a special device thereof, wherein the bait preparation process cannot keep constant temperature, blood is easy to coagulate during cooling, and the preparation of the blood sausage is simple and extensive, and only the blood is filtered, so that the utilization degree of blood is low, and the digestion and metabolism time of leeches on blood is long.
Disclosure of Invention
In view of the above, the invention aims to provide a device and a method for preparing hirudo nipponia bait,
in order to achieve the purpose, the invention provides the following technical scheme:
1. device for preparing bait for Japanese medicinal leeches
The device comprises a hydraulic device, an ultrasonic wall breaking device (3) and a constant-temperature storage chamber (5); the hydraulic device comprises a hydraulic power plate (1) and a hydraulic power rod (2);
a filter bag is arranged in the ultrasonic wall breaking device (3) and used for containing and filtering animal blood, the bottom of the ultrasonic wall breaking device (3) is communicated with the constant-temperature storage chamber (5) through a pipeline, and a control opening device (4) is arranged on the pipeline; the hydraulic power plate (1) is controlled to slide up and down through a hydraulic power rod (2); the constant-temperature storage chamber (5) is provided with a blood outflow pipeline (7), the pipeline (7) is provided with a control opening device (8), and the outlet of the blood outflow pipeline (7) is connected with a sausage casing (10).
In the invention, the device for feeding the hirudo nipponia comprises a bracket (6).
In the invention, the device for feeding the hirudo nipponica bait further comprises a tying and cutting device (9).
2. A method for preparing hirudo nipponia bait using the device according to claims 1 to 3, comprising the following steps:
a) placing fresh animal blood into a filter bag, placing the filter bag in an ultrasonic wall breaking device, and carrying out constant-temperature ultrasonic digestion on the animal blood to ensure that the breakage rate of red blood cells is more than 65%;
b) b, starting a hydraulic device, compressing the blood subjected to ultrasonic digestion in the step a, and allowing the filtrate to flow into a constant-temperature storage chamber for temporary storage;
c) and c, tying one end of the sausage casing, fixing the other end of the sausage casing at the outlet of the blood outflow pipeline, filling the filtrate obtained in the step b into the sausage casing, and finally performing sectional tying and cutting by using a tying cutting device.
In the present invention, preferably, in step a, the animal blood is pig blood.
Preferably, in step a, the size of the filter bag is 80-120 meshes.
In the present invention, preferably, in the step a, the constant temperature is 32-37 ℃.
In the invention, in the step a, the power of the ultrasonic digestion is 200W-400W, and the time is 20-30 min.
Preferably, in step b, the working pressure of the compression is 2000-4000pa, and the pressing speed is 15-20 mm/s.
In the present invention, preferably, in step c, the cut sausage casing has a length of 30-40cm, a diameter of 5cm and a weight of 1000g-1500 g.
The invention has the beneficial effects that:
the invention discloses a device and a method for preparing hirudo nipponica bait. The method can keep constant temperature in the preparation process, and prevent coagulation phenomenon caused by blood cooling; meanwhile, the blood is digested by ultrasonic waves on the basis of constant temperature, so that the digestion and absorption of bait by the hirudo nipponia are improved, the utilization rate of the blood and the survival rate of the hirudo nipponia are improved, and the culture yield is further improved; in addition, compared with the manual preparation of 'blood sausage', the device has higher automation degree, reduces the expenditure of labor cost, ensures the quality of bait and leads the quality of the blood sausage to be more uniform.
Drawings
In order to make the object, technical scheme and beneficial effect of the invention more clear, the invention provides the following drawings for explanation:
FIG. 1 is a schematic view of a bait preparation device for Japanese leech;
Detailed Description
The present invention is further described with reference to the following drawings and specific examples so that those skilled in the art can better understand the present invention and can practice the present invention, but the examples are not intended to limit the present invention.
Example 1 device for preparing hirudo nipponia bait
A device for preparing Hirudo nipponica bait is shown in figure 1, and comprises a hydraulic device, an ultrasonic wall breaking device (3), and a constant temperature storage chamber (5); the hydraulic device comprises a hydraulic power plate (1) and a hydraulic power rod (2);
a filter bag is arranged in the ultrasonic wall breaking device (3) and used for containing and filtering animal blood, the bottom of the ultrasonic wall breaking device (3) is communicated with the constant-temperature storage chamber (5) through a pipeline, and a control opening device (4) is arranged on the pipeline; the hydraulic power plate (1) is controlled to slide up and down through a hydraulic power rod (2); the constant-temperature storage chamber (5) is provided with a blood outflow pipeline (7), the pipeline (7) is provided with a control opening device (8), and an outlet of the blood outflow pipeline (7) is connected with an animal casing (10). The device for feeding the hirudo nipponia further comprises a bracket (6) for supporting and fixing. In addition, the sausage skin packaging machine also comprises a tying cutting device (9), and the filled animal sausage skin is subpackaged through the tying cutting device (9).
Example 2 method for preparing hirudo nipponia bait
The steps for preparing the bait for hirudo nipponica are as follows:
1. putting the purchased fresh pig blood into a double-layer nylon blood filtering bag with 120 meshes, putting the filtering bag into an ultrasonic wall breaking machine, starting the ultrasonic wall breaking machine, controlling the temperature to be 32 ℃, controlling the power to be 200W, and carrying out ultrasonic digestion for 30 minutes to ensure that the red blood cell breakage rate is more than 65 percent.
2. Starting a hydraulic device, setting the working pressure of liquid to be 2000pa, pressing at the speed of 20mm/s, compressing the blood after ultrasonic digestion in the blood filter bag, opening a switch leading to a constant-temperature storage chamber, releasing liquid components, temporarily storing in the constant-temperature storage chamber, and keeping the storage temperature at 32 ℃. After compression treatment, the blood after ultrasonic digestion realizes maximum solid-liquid separation, and more liquid components can be separated from the blood.
3. Tying one end of the soaked sausage casing, fixing the other end of the soaked sausage casing at the outlet of a blood outflow pipeline of a constant-temperature storage chamber by using a fixer, filling filtrate obtained after blood filtration into the sausage casing, and tying and cutting the sausage casing in sections by using a tying cutting device. The cut sausage casing had a length of 30, a diameter of 5cm and a weight of 1000 g.
900 Japanese leeches with the average weight of 0.5g are selected and averagely divided into 3 groups, and each group is provided with 3 repeated experiments. The method comprises the steps of respectively feeding conventional baits, blood filtering baits and blood ultrasonic filtering baits by adopting 3 different feeding modes. The preparation difference of the conventional bait, the blood filtering bait and the blood ultrasonic filtering bait is that the conventional bait is not subjected to filtering and ultrasonic digestion treatment, and the blood filtering bait is not subjected to ultrasonic digestion treatment. The culture time of the experimental subjects is 2 months, the survival rate, the digestion period and the average body weight of each group are finally counted, and the results are shown in table 1. The bait prepared by the leech of Japanese medicinals after ultrasonic filtration is more quickly digested and absorbed, the survival rate is higher, the average weight is heavier, and the culture yield is higher.
TABLE 1 influence of different feeding modes on the growth of hirudo nipponica
| Feeding mode | Survival rate | Digestion cycle | Mean body weight |
| Conventional bait | 50％-60％ | 10-15 days | 1.5g |
| Blood filtering bait | 90％ | 5-7 days | 3.7g |
| Blood ultrasonic filtering bait | 99.5％ | For 3-4 days | 5.2g |
Example 3 Effect of baits made with Filter bags of different mesh number on survival Rate of medical leeches
The steps for preparing the bait for hirudo nipponica are as follows:
1. putting the purchased fresh pig blood into double-layer nylon blood filter bags with the mesh numbers of 40, 80, 120 and 160, putting the filter bags into an ultrasonic wall breaking machine, starting the ultrasonic wall breaking machine, controlling the temperature to be 35 ℃ and the power to be 300W, and performing ultrasonic digestion for 25 minutes to ensure that the breakage rate of red blood cells is more than 65 percent.
2. Starting a hydraulic device, setting the working pressure of liquid to be 4000pa, pressing at the speed of 15mm/s, compressing the blood after ultrasonic digestion in the blood filter bag, opening a switch leading to a constant-temperature storage chamber, releasing liquid components, temporarily storing in the constant-temperature storage chamber, and keeping the storage temperature at 37 ℃. After compression treatment, the blood after ultrasonic digestion realizes maximum solid-liquid separation, and more liquid components can be separated from the blood.
3. One end of the casing after soaking treatment is tied, the other end of the casing is fixed on a fixer at the outlet of the constant-temperature storage chamber, and the tying machine is used for tying and cutting the casing in sections. The cut casing had a length of 40, a diameter of 5cm and a weight of 1300 g.
1200 Japanese leeches with the average weight of 0.5g are selected and averagely divided into 4 groups, and each group is provided with 3 repeated experiments. The culture time of the experimental subjects is 2 months, and finally, the blood solid weight ratio and the survival rate of each group are counted, and the results are shown in table 2. The larger the mesh number of the filter screen in the bait preparation process is, the smaller the weight ratio of the blood filtrate after filtration is, and the higher the survival rate of the leech of the Japanese doctor after feeding the bait is.
TABLE 2 influence of different mesh sizes on the growth of hirudo nipponica
| 40 mesh | 80 mesh | 120 mesh | 160 mesh | |
| Weight ratio of filtered blood | 90％ | 85％ | 78％ | 78％ |
| Survival rate of hirudo nipponica | 75％ | 86％ | 98％ | 98％ |
Example 4 Effect of different ultrasound durations on digestion cycle of bait
The steps for preparing the bait for hirudo nipponica are as follows:
1. putting the purchased fresh pig blood into a double-layer nylon blood filter bag with the mesh number of 120, putting the filter bag into an ultrasonic wall breaking machine, starting the ultrasonic wall breaking machine, controlling the temperature to be 32 ℃ and the power to be 200W, and performing ultrasonic digestion for 10 minutes, 20 minutes and 30 minutes respectively to ensure that the breakage rate of red blood cells is more than 65 percent.
2. Starting a hydraulic device, setting a liquid working pressure of 3000pa and a pressing speed of 20mm/s, compressing the blood subjected to ultrasonic digestion in the blood filter bag, opening a switch leading to a constant-temperature storage chamber, releasing liquid components, temporarily storing in the constant-temperature storage chamber, and keeping the storage temperature at 32 ℃. After compression treatment, the blood after ultrasonic digestion realizes maximum solid-liquid separation, and more liquid components can be separated from the blood.
3. One end of the casing after soaking treatment is tied, the other end of the casing is fixed on a fixer at the outlet of the constant-temperature storage chamber, and the tying machine is used for tying and cutting the casing in sections. The cut sausage casing had a length of 30, a diameter of 5cm and a weight of 1000 g.
900 Japanese leeches with the average weight of 0.5g are selected and averagely divided into 3 groups, and each group is provided with 3 repeated experiments. The culture time of the experimental subjects is 2 months, and finally, the digestion periods of the hirudo nipponia of each group on baits prepared in different ultrasonic times are counted, and the results are shown in table 3. The longer the ultrasonic time in the bait preparation process is, the shorter the digestion period of the hirudo nipponia on the bait is.
TABLE 3 Effect of different ultrasound times on the growth of hirudo nipponica
| Different ultrasound times | 10min | 20min | 30min |
| Digestion cycle | 7d | 5d | 3d |
| Rate of breakage | 30％ | 47％ | 68％ |
Example 5, the influence of different temperatures on growth parameters such as the proportion of solid components in blood after blood filtration, the survival rate and the like, the preparation of the bait for hirudo nipponica comprises the following steps:
1. putting the purchased fresh pig blood into a double-layer nylon blood filter bag with the mesh number of 120, putting the filter bag into an ultrasonic wall breaking machine, starting the ultrasonic wall breaking machine, controlling the temperature to be 24 ℃, 28 ℃, 32 ℃ and 36 ℃, controlling the power to be 200W, and performing ultrasonic digestion for 30 minutes respectively to ensure that the breakage rate of red blood cells is more than 65%.
2. Starting a hydraulic device, setting the working pressure of liquid to be 2000pa, and the pressing speed to be 20mm/s, compressing the blood after the ultrasonic digestion in the blood filter bag, opening a switch leading to a constant-temperature storage chamber, releasing liquid components, temporarily storing in the constant-temperature storage chamber, and keeping the storage temperature to be the same as the ultrasonic temperature. After compression treatment, the blood after ultrasonic digestion realizes maximum solid-liquid separation, and more liquid components can be separated from the blood.
3. One end of the casing after soaking treatment is tied, the other end of the casing is fixed on a fixer at the outlet of the constant-temperature storage chamber, and the tying machine is used for tying and cutting the casing in sections. The cut casing had a length of 40, a diameter of 5cm and a weight of 1350 g.
1200 Japanese leeches with the average weight of 0.5g are selected and averagely divided into 4 groups, and each group is provided with 3 repeated experiments. The culture time of the experimental subjects is 2 months, and finally, the blood solid weight ratio, the digestion period and the survival rate of each group are counted, and the results are shown in table 4. The bait preparation temperature is preferably 32-36 ℃, the digestion period of the hirudo nipponica is shorter, and the survival rate is higher.
TABLE 4 Effect of baits prepared at different temperatures on the growth of hirudo nipponica
The above-mentioned embodiments are merely preferred embodiments for fully illustrating the present invention, and the scope of the present invention is not limited thereto. The equivalent substitution or change made by the technical personnel in the technical field on the basis of the invention is all within the protection scope of the invention. The protection scope of the invention is subject to the claims.
Claims (10)
1. The device for preparing the bait for the Japanese medicinal leeches is characterized in that: the device comprises a hydraulic device, an ultrasonic wall breaking device (3) and a constant-temperature storage chamber (5); the hydraulic device comprises a hydraulic power plate (1) and a hydraulic power rod (2);
a filter bag is arranged in the ultrasonic wall breaking device (3) and used for containing and filtering animal blood, the bottom of the ultrasonic wall breaking device (3) is communicated with the constant-temperature storage chamber (5) through a pipeline, and a control opening device (4) is arranged on the pipeline; the hydraulic power plate (1) is controlled to slide up and down through a hydraulic power rod (2); the constant-temperature storage chamber (5) is provided with a blood outflow pipeline (7), the blood outflow pipeline (7) is provided with a control opening device (8), and an outlet of the blood outflow pipeline (7) is used for being connected with a sausage casing (10).
2. The device for preparing hirudo nipponia bait according to claim 1, characterized in that: the device for feeding the hirudo nipponia comprises a bracket (6).
3. The device for preparing hirudo nipponia bait according to claim 1, characterized in that: the device for feeding the hirudo nipponica further comprises a tying and cutting device (9).
4. A method for preparing hirudo nipponia bait using a device according to any one of claims 1 to 3, characterized in that it comprises the following steps:
a) placing fresh animal blood into a filter bag, placing the filter bag in an ultrasonic wall breaking device, and carrying out constant-temperature ultrasonic digestion on the animal blood to ensure that the breakage rate of red blood cells is more than 65%;
b) b, starting a hydraulic device, compressing the blood subjected to ultrasonic digestion in the step a, and allowing the filtrate to flow into a constant-temperature storage chamber for temporary storage;
c) and c, tying one end of the sausage casing, fixing the other end of the sausage casing at the outlet of the blood outflow pipeline, filling the filtrate obtained in the step b into the sausage casing, and finally performing sectional tying and cutting by using a tying cutting device.
5. The method for preparing hirudo nipponia bait according to claim 4, wherein in step a, the animal blood is pig blood.
6. The method for preparing hirudo nipponia bait according to claim 4, wherein in step a, the filter bag has a size of 80 to 120 meshes.
7. The method for preparing hirudo nipponia bait according to claim 4, characterized in that in step a, the constant temperature is 32-37 ℃.
8. The method for preparing hirudo nipponia bait according to claim 4, wherein in the step a, the power of the ultrasonic digestion is 200W-400W, and the time is 20-30 min.
9. The method for preparing hirudo nipponia bait according to claim 4, characterized in that in step b, the compression is carried out at a working pressure of 2000-4000pa and a compression speed of 15-20 mm/s.
10. The method for preparing hirudo nipponia bait according to claim 4, characterized in that in step c, the cut casing has a length of 30 to 40cm, a diameter of 5cm and a weight of 1000g to 1500 g.
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| CN202110920658.4A CN113576002A (en) | 2021-08-11 | 2021-08-11 | Device and method for preparing hirudo nipponia bait |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104430190A (en) * | 2014-10-29 | 2015-03-25 | 南宁市净雪皇生物工程有限公司 | Device and method for feeding poecilobdella manillensis manually |
| CN105707015A (en) * | 2016-03-03 | 2016-06-29 | 王文渊 | Method for feeding bait to medicinal blood-sucking leeches |
| CN105746943A (en) * | 2016-03-03 | 2016-07-13 | 王文渊 | Dried animal casing suitable for being fed to hematophagous medical leeches and processing method of dried animal casing |
| CN106689820A (en) * | 2017-03-24 | 2017-05-24 | 重庆铭实农业科技开发有限责任公司 | Hirudo artificial food and preparation method thereof |
| CN111616284A (en) * | 2020-05-06 | 2020-09-04 | 荆州市民康生物科技有限公司 | Nontoxic treatment and application method of blood sucking leech bait |
| CN213246406U (en) * | 2020-07-31 | 2021-05-25 | 荆州市民康生物科技有限公司 | Novel convenient feeding of high-efficient blood sucking leech is eaten device |
-
2021
- 2021-08-11 CN CN202110920658.4A patent/CN113576002A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104430190A (en) * | 2014-10-29 | 2015-03-25 | 南宁市净雪皇生物工程有限公司 | Device and method for feeding poecilobdella manillensis manually |
| CN105707015A (en) * | 2016-03-03 | 2016-06-29 | 王文渊 | Method for feeding bait to medicinal blood-sucking leeches |
| CN105746943A (en) * | 2016-03-03 | 2016-07-13 | 王文渊 | Dried animal casing suitable for being fed to hematophagous medical leeches and processing method of dried animal casing |
| CN106689820A (en) * | 2017-03-24 | 2017-05-24 | 重庆铭实农业科技开发有限责任公司 | Hirudo artificial food and preparation method thereof |
| CN111616284A (en) * | 2020-05-06 | 2020-09-04 | 荆州市民康生物科技有限公司 | Nontoxic treatment and application method of blood sucking leech bait |
| CN213246406U (en) * | 2020-07-31 | 2021-05-25 | 荆州市民康生物科技有限公司 | Novel convenient feeding of high-efficient blood sucking leech is eaten device |
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Application publication date: 20211102 |