CN115299388A - Test method for comparing influences of different-grade feeds on growth of cultured fishes - Google Patents
Test method for comparing influences of different-grade feeds on growth of cultured fishes Download PDFInfo
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- CN115299388A CN115299388A CN202210877152.4A CN202210877152A CN115299388A CN 115299388 A CN115299388 A CN 115299388A CN 202210877152 A CN202210877152 A CN 202210877152A CN 115299388 A CN115299388 A CN 115299388A
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- test
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- 241000251468 Actinopterygii Species 0.000 title claims abstract description 84
- 238000010998 test method Methods 0.000 title claims abstract description 14
- 238000012360 testing method Methods 0.000 claims abstract description 69
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 12
- 238000004140 cleaning Methods 0.000 claims abstract description 3
- 230000000249 desinfective effect Effects 0.000 claims abstract description 3
- 238000000034 method Methods 0.000 claims description 8
- 102000004169 proteins and genes Human genes 0.000 claims description 6
- 108090000623 proteins and genes Proteins 0.000 claims description 6
- 230000000694 effects Effects 0.000 claims description 3
- 230000037396 body weight Effects 0.000 claims description 2
- 238000005070 sampling Methods 0.000 description 3
- 238000005286 illumination Methods 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 241001465754 Metazoa Species 0.000 description 1
- 238000005276 aerator Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 238000005303 weighing Methods 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
- A01K61/10—Culture of aquatic animals of fish
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D21/00—Measuring or testing not otherwise provided for
- G01D21/02—Measuring two or more variables by means not covered by a single other subclass
-
- 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)
- Marine Sciences & Fisheries (AREA)
- Zoology (AREA)
- Animal Husbandry (AREA)
- Biodiversity & Conservation Biology (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Farming Of Fish And Shellfish (AREA)
Abstract
The invention discloses a test method for comparing influences of different-grade feeds on growth of cultured fishes, which belongs to the technical field of fish culture and comprises the following steps: (1) Cleaning and disinfecting the test net cage, erecting the test net cage in the same water body, and fasting the fish one day before the test; (2) Dividing the test net cages into three groups, wherein the three groups are respectively numbered A, B and C, each group is divided into 10 groups, the number of each group is 1-10, each group is provided with a net cage with 3-4 openings, the test fishes are respectively divided into the test net cages, the initial average quality is recorded, the relative parameters of the growth of a single fish body are sampled and measured, the average quality of the fishes is measured every week after the test is started, and the relative parameters of the growth of the single fish body are sampled and measured; (3) During the test period, three groups of the test net cages A, B and C are fed with low-grade, medium-grade and high-grade feeds respectively. The test method provided by the invention improves the accuracy of data acquisition and simultaneously reduces the stress on fish caused by test operation.
Description
Technical Field
The invention relates to the technical field of fish culture, in particular to a test method for comparing influences of different-grade feeds on growth of cultured fishes.
Background
Tracking is more complicated than tracking growth of terrestrial animals, as fish grow in water. The growth of fish is usually tracked by a method of sampling by throwing a net, and the sampled fish may be a less active individual, which is less representative of the growth of fish in the whole fish pond. Or a method for repeatedly fishing and weighing a single culture unit, which has great stress on the fish and is not beneficial to the growth of the fish, needs to provide a test method which can improve the accuracy of data acquisition and reduce the stress of test operation on the fish.
Disclosure of Invention
The invention aims to provide a test method for comparing the influence of different-grade feeds on the growth of cultured fishes.
The technical scheme for realizing the purpose of the invention is as follows: a test method for comparing the influence of different-grade feeds on the growth of cultured fishes comprises the following steps:
(1) Cleaning and disinfecting the test net cage, erecting the test net cage in the same water body, and fasting the fish one day before the test;
(2) Dividing the test net cages into three groups, wherein the three groups are respectively numbered A, B and C, each group is further divided into 10 groups, the number of each group is 1-10, each group is provided with a net cage with 3-4 openings, the test fishes with equal mantissas are respectively divided into the test net cages, the initial average quality is recorded when the test fishes are placed in the test, the related parameters of the growth of a single fish body are sampled and measured, the average quality of the fishes is measured every week after the test is started, and the related parameters of the growth of the single fish body are sampled and measured;
(3) During the test period, three groups of the test net cages A, B and C are fed with low-grade, medium-grade and high-grade feeds respectively.
As an embodiment of the present invention, in the step (1), the area of the water body is 20-30 mu, and the water depth is 3-5 m.
Preferably, in the step (1), the length, width and height of the test net cage are 3m × 3m × 2m, and the test net cage is provided with 90-120 openings in total.
Preferably, in the step (1), the test net cages are arranged in a straight line according to the condition that every 30-40 net cages are a unit, the net sheets of the test net cages are knotless nets, and the mesh specification is 1-3cm.
Preferably, in the step (2), the initial average mass is the total fish-releasing mass divided by the total fish-releasing mantissa.
Preferably, in the step (2), the parameters related to the growth include body weight, body length, full length, body width and body height.
Preferably, in the step (2), the sampling is to take a sample of 15-30 tailfish.
Preferably, in the step (2), the equal mantissa of the test fish is 100-300 tails.
Preferably, in the step (3), the protein level of the middle-grade feed is 2-3% higher than that of the low-grade feed, and the protein level of the top-grade feed is 2-3% higher than that of the middle-grade feed.
Advantageous effects
The test method for comparing the influence of different-grade feeds on the growth of the cultured fishes can improve the accuracy of data acquisition, reduce the stress of test operation on the fishes, and provide reliable support for research on the growth comparison of the fishes by scientific research institutions and technical research and development departments of enterprises.
Detailed Description
The present invention will be further described with reference to the following specific examples.
A test method for comparing the influence of different-grade feeds on the growth of cultured fishes comprises the following steps:
(1) A90-120 opening of a test net cage with the length, width and height of 3m multiplied by 2m is erected in the same water body, the test net cage is cleaned and disinfected 5 days before the test is started, fish is fasted 1 day before the test is started, the area of the water body is 20-30 mu, the water depth is 3-5 meters, the illumination is natural illumination, and an aerator is used for aerating the water body.
(2) Dividing the test net cages into three groups, wherein the groups are respectively numbered A, B and C, each group is divided into 10 groups, the groups are respectively numbered 1-10, each group is provided with 3-4 net cages, test fishes with the total mass of 100-300 tails and the like are respectively divided into the test net cages, the test net cages are arranged in a straight line according to the condition that each 30-40 net cages is a unit, net sheets of the test net cages are knotless, the mesh specification is 1-3cm, the initial average mass (the initial average mass is the total mass of the put fishes divided by the total tail number of the put fishes) is recorded when the fishes are put in the test, 15-30 fishes are taken as samples to measure the relevant parameters of the growth of the single fish body, namely the weight, the body length, the full length, the body width and the body height, the average mass of the fishes is measured every week after the test is started, and the relevant parameters of the growth of the single fish body are sampled and measured.
(3) During the test period, three groups of the test net cages A, B and C are fed with low-grade, medium-grade and high-grade feeds respectively, wherein the protein level of the medium-grade feed is 2-3% higher than that of the low-grade feed, and the protein level of the high-grade feed is 2-3% higher than that of the medium-grade feed.
The specific operation steps after the test is started are as follows:
week 1: turning the net of all the test net cages A-1, B-1 and C-1, recording the total mass and the total mantissa of the fish bodies of the net cages A-1, B-1 and C-1, and calculating the average mass of the fish bodies.
Week 2: turning the net of all the test net cages A-2, B-2 and C-2, recording the total mass and the total mantissa of the fish bodies of the net cages A-2, B-2 and C-2 groups, and calculating the average mass of the fish bodies.
Week 3: turning the net of all the test net cages A-3, B-3 and C-3, recording the total mass and the total mantissa of the fish bodies of the net cages A-3, B-3 and C-3 groups, and calculating the average mass of the fish bodies.
Week 4: turning the net of all the test net cages A-4, B-4 and C-4, recording the total mass and the total mantissa of the fish body of each net cage of the groups A-4, B-4 and C-4, and calculating the average mass of the fish body.
Week 5: turning the net of all the test net cages A-5, B-5 and C-5, recording the total mass and the total mantissa of the fish bodies of the net cages A-5, B-5 and C-5 groups, and calculating the average mass of the fish bodies.
Week 6: turning the net of all the test net cages A-6, B-6 and C-6, recording the total mass and the total mantissa of the fish body of each net cage of the groups A-6, B-6 and C-6, and calculating the average mass of the fish body.
Week 7: turning the net of all the experimental net cages A-7, B-7 and C-7, recording the total mass and the total mantissa of the fish bodies of the net cages A-7, B-7 and C-7, and calculating the average mass of the fish bodies.
Week 8: turning the net of all the test net cages A-8, B-8 and C-8, recording the total mass and the total mantissa of the fish bodies of the net cages A-8, B-8 and C-8 groups, and calculating the average mass of the fish bodies.
Week 9: turning the net of all the test net cages A-9, B-9 and C-9, recording the total mass and the total mantissa of the fish body of each net cage of the groups A-9, B-9 and C-9, and calculating the average mass of the fish body.
Week 10: turning the net of all the test net cages A-10, B-10 and C-10, recording the total mass and the total mantissa of the fish bodies of the net cages A-10, B-10 and C-10 groups, and calculating the average mass of the fish bodies.
Week 11: turning the net of all the test net cages A-1, B-1 and C-1, recording the total mass and the total mantissa of the fish bodies of the net cages A-1, B-1 and C-1, and calculating the average mass of the fish bodies.
Repeating the above operations, and circulating in sequence until the maximum average quality of the fish set by the test is reached. The method comprises the steps of sampling and measuring the weight, body length, full length, body width and body height of a single fish while turning over a net, putting the fish back to the original net cage after measurement, sorting and analyzing all recorded data according to time sequence to obtain growth models of the fish under different grades of feed, and drawing a curve graph according to the growth models of the fish to visually compare the influence of the feed of different grades on the growth of the fish.
The above is only a preferred embodiment of the present invention, and it should be noted that it is obvious to those skilled in the art that several variations and modifications can be made without departing from the structure of the present invention, which will not affect the effect and practicality of the present invention.
Claims (9)
1. A test method for comparing the influence of different grades of feed on the growth of cultured fishes is characterized by comprising the following steps:
(1) Cleaning and disinfecting the test net cage, erecting the test net cage in the same water body, and fasting the fish one day before the test;
(2) Dividing the test net cages into three groups, wherein the three groups are respectively numbered A, B and C, each group is further divided into 10 groups, the number of each group is 1-10, each group is provided with a net cage with 3-4 openings, the test fishes with equal mantissas are respectively divided into the test net cages, the initial average quality is recorded when the test fishes are placed in the test, the related parameters of the growth of a single fish body are sampled and measured, the average quality of the fishes is measured every week after the test is started, and the related parameters of the growth of the single fish body are sampled and measured;
(3) During the test period, three groups of the test net cages A, B and C are fed with low-grade, medium-grade and high-grade feeds respectively.
2. The test method for comparing the influence of different grades of feed on the growth of cultivated fishes according to claim 1, wherein in step (1), the area of the water body is 20-30 mu, and the water depth is 3-5 m.
3. The method as claimed in claim 1, wherein in step (1), the length, width and height of the test net cage are 3m x 2m, and the test net cage has 90-120 openings.
4. The test method for comparing the influence of different grades of feed on the growth of the cultured fishes according to claim 1, wherein in the step (1), the test net cages are arranged in a straight line according to the condition that each 30-40 net cages are a unit, the net sheets of the test net cages are knotless nets, and the mesh specification is 1-3cm.
5. The method of claim 1, wherein in step (2), the initial average mass is the total fish-dropping mass divided by the total fish-dropping mantissa.
6. The method as claimed in claim 1, wherein in step (2), the parameters related to the growth comprise body weight, body length, full length, body width and body height.
7. The method as claimed in claim 1, wherein in step (2), the sample is 15-30 fish samples.
8. The method of claim 1, wherein in step (2), the number of the test fish with equal mantissas is 100-300.
9. The test method for comparing the effect of different feed grades on the growth of farmed fish as claimed in claim 1, wherein in step (3), the protein level of the middle feed grade is 2-3% higher than that of the low feed grade, and the protein level of the top feed grade is 2-3% higher than that of the middle feed grade.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210877152.4A CN115299388A (en) | 2022-07-25 | 2022-07-25 | Test method for comparing influences of different-grade feeds on growth of cultured fishes |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210877152.4A CN115299388A (en) | 2022-07-25 | 2022-07-25 | Test method for comparing influences of different-grade feeds on growth of cultured fishes |
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| Publication Number | Publication Date |
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| CN115299388A true CN115299388A (en) | 2022-11-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210877152.4A Pending CN115299388A (en) | 2022-07-25 | 2022-07-25 | Test method for comparing influences of different-grade feeds on growth of cultured fishes |
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20050018839A (en) * | 2005-01-18 | 2005-02-28 | 주선미 | Auto feeder of fooder |
| JP2007006736A (en) * | 2005-06-29 | 2007-01-18 | Nisso Industry Co Ltd | Feeder for aquarium fish |
| CN101897307A (en) * | 2010-07-22 | 2010-12-01 | 中国水产科学研究院淡水渔业研究中心 | Carp family selective breeding method utilizing net cage |
| CN101950328A (en) * | 2010-09-07 | 2011-01-19 | 中国水产科学研究院长江水产研究所 | Method for computing quantity of baits remaining in water and feed conversion rate by using counting method |
| CN206061857U (en) * | 2016-09-18 | 2017-04-05 | 中国水产科学研究院南海水产研究所 | A kind of basket fish culture test net cage |
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-
2022
- 2022-07-25 CN CN202210877152.4A patent/CN115299388A/en active Pending
Patent Citations (8)
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|---|---|---|---|---|
| KR20050018839A (en) * | 2005-01-18 | 2005-02-28 | 주선미 | Auto feeder of fooder |
| JP2007006736A (en) * | 2005-06-29 | 2007-01-18 | Nisso Industry Co Ltd | Feeder for aquarium fish |
| CN101897307A (en) * | 2010-07-22 | 2010-12-01 | 中国水产科学研究院淡水渔业研究中心 | Carp family selective breeding method utilizing net cage |
| CN101950328A (en) * | 2010-09-07 | 2011-01-19 | 中国水产科学研究院长江水产研究所 | Method for computing quantity of baits remaining in water and feed conversion rate by using counting method |
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| CN108719154A (en) * | 2018-05-03 | 2018-11-02 | 扬州市嘉丰罗氏沼虾良种繁殖有限公司 | A kind of Macrobrachium rosenbergii feeding experiment method |
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| CN209897987U (en) * | 2019-01-29 | 2020-01-07 | 中国水产科学研究院南海水产研究所深圳试验基地 | Fish puffed feed selection test device |
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| Title |
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