CN106577370B - Method for measuring optimal temperature required by fish - Google Patents
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- CN106577370B CN106577370B CN201610937190.9A CN201610937190A CN106577370B CN 106577370 B CN106577370 B CN 106577370B CN 201610937190 A CN201610937190 A CN 201610937190A CN 106577370 B CN106577370 B CN 106577370B
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- 241000251468 Actinopterygii Species 0.000 title claims abstract description 79
- 238000000034 method Methods 0.000 title claims abstract description 26
- 235000019688 fish Nutrition 0.000 claims abstract description 77
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 31
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 14
- 239000001301 oxygen Substances 0.000 claims abstract description 14
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 13
- 235000013305 food Nutrition 0.000 claims abstract description 12
- 238000005303 weighing Methods 0.000 claims abstract description 10
- 230000037396 body weight Effects 0.000 claims description 16
- 241000252233 Cyprinus carpio Species 0.000 claims description 11
- 241000277275 Oncorhynchus mykiss Species 0.000 claims description 11
- 241000238552 Penaeus monodon Species 0.000 claims description 10
- 241000252230 Ctenopharyngodon idella Species 0.000 claims description 8
- 241001417495 Serranidae Species 0.000 claims description 8
- 241000276707 Tilapia Species 0.000 claims description 8
- 240000002129 Malva sylvestris Species 0.000 claims description 7
- 235000006770 Malva sylvestris Nutrition 0.000 claims description 7
- 241001125889 Micropterus salmoides Species 0.000 claims description 7
- 241000630524 Taractes rubescens Species 0.000 claims description 7
- 239000013505 freshwater Substances 0.000 claims description 7
- 238000012360 testing method Methods 0.000 claims description 7
- 241001459819 Carassius gibelio Species 0.000 claims description 5
- 241001275898 Mylopharyngodon piceus Species 0.000 claims description 3
- 230000003203 everyday effect Effects 0.000 claims description 3
- 238000004140 cleaning Methods 0.000 claims description 2
- 238000002474 experimental method Methods 0.000 claims description 2
- 241000894007 species Species 0.000 claims description 2
- 241000252203 Clupea harengus Species 0.000 claims 1
- 241000252234 Hypophthalmichthys nobilis Species 0.000 claims 1
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 claims 1
- 235000019514 herring Nutrition 0.000 claims 1
- 239000000463 material Substances 0.000 claims 1
- 229910052709 silver Inorganic materials 0.000 claims 1
- 239000004332 silver Substances 0.000 claims 1
- 238000009360 aquaculture Methods 0.000 abstract description 4
- 244000144974 aquaculture Species 0.000 abstract description 4
- 238000006213 oxygenation reaction Methods 0.000 abstract 1
- 239000002699 waste material Substances 0.000 abstract 1
- 241001233037 catfish Species 0.000 description 4
- 230000036528 appetite Effects 0.000 description 3
- 235000019789 appetite Nutrition 0.000 description 3
- 241000252228 Ctenopharyngodon Species 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 210000003608 fece Anatomy 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000036651 mood Effects 0.000 description 1
- 238000012216 screening Methods 0.000 description 1
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Classifications
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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
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01G—WEIGHING
- G01G17/00—Apparatus for or methods of weighing material of special form or property
-
- 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)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Marine Sciences & Fisheries (AREA)
- Zoology (AREA)
- Animal Husbandry (AREA)
- Biodiversity & Conservation Biology (AREA)
- Farming Of Fish And Shellfish (AREA)
Abstract
The invention relates to the technical field of cultivation, in particular to a method for measuring optimal temperature required by fish. Placing the same kind of fish at a constant temperature T0Feeding in B water tanks with sufficient and constant oxygen until acclimatization, weighing each fish and the weight m of food fed under appropriate oxygen0Different temperatures are set, and the temperature corresponding to the maximum value of the food quantity is the required optimal temperature of the fish. The method for measuring the optimal minimum dissolved oxygen required by the fishes can accurately measure the optimal minimum dissolved oxygen required by various fishes, can provide reference for oxygenation of aquaculture, and reduces waste of resources.
Description
Technical Field
The invention relates to the technical field of cultivation, in particular to a method for measuring optimal temperature required by fish.
Background
In the process of aquaculture, except the conditions of the day and the ground, the relation with fishes is most directly the water condition. The growth of fish is influenced by the temperature, activity, turbidity, dissolved oxygen level, etc. of water. The fish is stable in mood, full in spirit and strong in appetite in an environment with proper water temperature, when the water temperature exceeds the proper temperature, the fish can eat carelessly, and when the water temperature is lower than the proper temperature, the fish becomes dull and sluggish, and the appetite is poor. The temperature can be a proper temperature of the fish, and no method for measuring the optimal temperature needed by the fish is reported up to now.
Disclosure of Invention
The invention provides a method for measuring the optimal temperature required by fishes after comprehensively considering the current aquaculture production situation.
The technical scheme of the invention is as follows:
a method for measuring the optimal temperature needed by fish,
1) placing A fish of the same species at constant temperature T0Feeding the fish in B water jars with sufficient and constant oxygen until domestication is carried out, cleaning excrement in time during the domestication, stopping feeding, weighing each fish every day until the weight of each fish does not change any more, and recording the weight W of each fish0;
2) Weighing the weight W of each fish when the fish is not eating any more by feeding excessive feed into the water vat1Calculating the weight W0、W1Taking the average of the weight difference of (a) and (b), the weight difference being at a temperature T0Weight m of food eaten under the condition0;
3) Feeding in original water vat, acclimating, and changing the temperature of water vat to T1Keeping the dissolved oxygen of each water vat consistent, then continuing to stop feeding the feed according to the method of the step 1) until the weight of each fish does not change, and recording the weight W of each fish2Then feeding excessive feed into each fish tank according to the method of the step 2) and weighing the weight W of each fish when the fish do not eat any more3Calculating the weight W2、W3The difference in weight of (a) is the temperature T1Weight m of the food eaten1;
4) Setting different temperatures, and sequentially carrying out the experiment in the step 3), wherein the temperature corresponding to the maximum value of the food quantity is the required optimal temperature of the fish.
Preferably, the fish length for testing is from the osculating end to the tail fin end, and the fish length value is more than 10 cm; the weight value of the fish body is more than 300 g.
Further preferably, the rainbow trout used for testing has the body length of 38-42 cm and the body weight of 0.8-1.2 kg; the length of the tilapia is 24-27 cm, and the weight of the tilapia is 0.3-0.45 kg; the length of the grouper is 23-27 cm, and the weight of the grouper is 2.3-2.7 kg; the length of the penaeus monodon is 23-27 cm, and the weight of the penaeus monodon is 140-160 g; the body length of the carp is 33-37 cm, and the body weight of the carp is 1.5-2.5 kg; the body length of the grass carp is 58-63 cm, and the body weight is 4.8-5.5 kg; the length of the malva sylvestris is 33-37 cm, and the weight of the malva sylvestris is 2.3-2.7 kg; the length of the micropterus salmoides is 38-42 cm, and the weight of the micropterus salmoides is 1.8-2.2 kg; the length of the silver crucian carp is 17-19 cm, and the weight of the silver crucian carp is 0.8-1.2 kg; the length of the freshwater pomfret is 13-17 cm, and the weight of the freshwater pomfret is 0.4-0.7 kg; the black carp body length is 38-42 cm, and the weight is 9-12 kg.
Still further preferably, the rainbow trout in the fish for testing has a body length of 40cm, a body weight of 1kg, a body length of 25cm, a body weight of 0.4kg, a body length of 25cm, a body weight of 2.5kg, a body length of 25cm, a body weight of 150g, a body length of 35cm, a body weight of 2kg, a body length of 60cm, a body weight of 5kg, a body length of 35cm, a body weight of 2.5kg, a body length of 40cm, a body weight of 2kg, a body length of 18cm, a body weight of 1kg, a body length of 15cm, a body weight of 0.5kg, a body length of 40cm and a body weight of 10 kg.
Still more preferably, the required optimal temperature of the rainbow trout is 17-20 ℃, the required optimal temperature of the tilapia is 28-32 ℃, the required optimal temperature of the grouper is 24-28 ℃, the required optimal temperature of the penaeus monodon is 27-31 ℃, the required optimal temperature of the carp is 22-26 ℃, the required optimal temperature of the grass carp is 24-28 ℃, the required optimal temperature of the malva sylvestris is 20-34 ℃, the required optimal temperature of the micropterus salmoides is 20-30 ℃, the required optimal temperature of the silver crucian carp is 25-32 ℃, the required optimal temperature of the freshwater pomfret is 24-32 ℃ and the required optimal temperature of the black carp is 24-28 ℃.
The method is used for selecting fish in the water environment.
The invention has the following beneficial effects:
1. compared with the conventional method for measuring the optimal temperature required by the fish, the method for measuring the optimal temperature required by the fish can accurately measure the optimal temperature required by various fishes, can provide reference for aquaculture, adjusts the water temperature to the appropriate temperature, and enables the fishes to have more vigorous appetite and grow faster.
2. The optimal temperature of the fishes is measured, reference value can be provided for field fishing people, and the fishes can be easily caught in places with proper water temperature. The temperature of the field water body can be known, and the growth environment and growth condition of the fish can be further known. The method provided by the invention can help a wide range of fishermen to know the temperature required by the fish so as to improve the yield.
3. After the optimal temperature of different fishes is obtained by adopting the method, the growth of the target fishes can be promoted by controlling the temperature of the water body, the growth of other fishes can be inhibited, the function of screening the fish species is achieved, and the method is simple and effective.
Drawings
FIG. 1: schematic diagram of the testing device of the present invention;
in the figure: the device comprises a closed water tank 1, an inlet 2, a temperature sensor 3, a display screen 4 and an oxygen filling pump 5.
Detailed Description
The invention is further illustrated by the following examples, but the scope of the invention as claimed is not limited to the scope of the examples.
Example 1
The invention provides a method for measuring optimal temperature required by fish, which comprises the following steps:
1) feeding 25 grass carps in 5 water jars with adequate oxygen (dissolved oxygen of 8 mg/L) at 10 deg.C until acclimatization, removing feces, measuring dissolved oxygen by iodometry or electrode method, stopping feeding, weighing each fish every day until the weight of each fish is not changed, recording the weight of each fish,
2) then, the excess feed is fed into the water vat, when the fish are not eating any more, the weight of each fish is weighed, the difference between the two weighing is calculated, the average value of each vat is taken, and the difference between the two weighed weights is 20g of the weight of the food eaten at the temperature of 10 ℃.
3) Then feeding the fish in the original water tank with dissolved oxygen of 8mg/L and temperature of 10 deg.C, then acclimatizing, changing water temperature to 15 deg.C, then continuing to stop feeding feed according to the above method until the weight of each fish is not changed, and recording the weight of each fishWeighing fish in the fish tank, feeding excessive feed to each fish tank, weighing each fish when the fish is not eating any more, and calculating the weight m of food eaten under the condition that the difference between two weighing times is 15 DEG C1Is 23 g;
4) continuing to perform the steps until the water temperature is 25 ℃, and the weight of the food is 30 g; the weight of the food eaten is less than 30g when the temperature is lower than or higher than 25 ℃; the water temperature of 25 ℃ is the optimal temperature required by the grass carp.
The length of the grass carp body is 60cm, and the deviation of the length of the grass carp body is less than 5 cm.
Example 2
The required optimum temperature of the rainbow trout is measured to be 17-20 ℃, and the required optimum temperature of the natural enemy catfish of the rainbow trout is measured to be 20-25 ℃.
In a certain water body, the temperature is 20 ℃, the number ratio of the rainbow trout to the catfish in the water is 1:6, the optimal temperature required for adjusting the water environment is 17 ℃, the number ratio of the rainbow trout to the catfish is 1:3 after 1-2 weeks of observation, and the number ratio of the rainbow trout to the catfish is 1.5:1 after 1 month of observation.
The above-described embodiments are merely preferred embodiments of the present invention, and should not be construed as limiting the present invention, and features in the embodiments and examples in the present application may be arbitrarily combined with each other without conflict. The protection scope of the present invention is defined by the claims, and includes equivalents of technical features of the claims. I.e., equivalent alterations and modifications within the scope hereof, are also intended to be within the scope of the invention.
Claims (5)
1. A method for measuring the optimal temperature required by fish is characterized in that:
1) placing A fish of the same species at constant temperature T0Feeding the fish in B water jars with sufficient and constant oxygen until domestication is carried out, cleaning excrement in time during the domestication, stopping feeding, weighing each fish every day until the weight of each fish does not change any more, and recording the weight W of each fish0;
2) Feeding excessive material into water vatWeighing the weight W of each fish when the fish are not eating the feed1Calculating the weight W0、W1Taking the average of the weight difference of (a) and (b), the weight difference being at a temperature T0Weight m of food eaten under the condition0;
3) Feeding in original water vat, acclimating, and changing the temperature of water vat to T1Keeping the dissolved oxygen of each water vat consistent, then continuing to stop feeding the feed according to the method of the step 1) until the weight of each fish does not change, and recording the weight W of each fish2Then feeding excessive feed into each fish tank according to the method of the step 2) and weighing the weight W of each fish when the fish do not eat any more3Calculating the weight W2、W3The difference in weight of (a) is the temperature T1Weight m of the food eaten1;
4) Setting different temperatures, and sequentially carrying out the experiment in the step 3), wherein the temperature corresponding to the maximum value of the food quantity is the required optimal temperature of the fish; the length of the fish body used for testing is from the osculating end to the tail end of the tail fin, and the length value of the fish body is more than 10 cm; the weight value of the fish body is more than 300 g.
2. The method of claim 1, wherein: the rainbow trout body length of the fish for testing is 38-42 cm, and the weight of the fish is 0.8-1.2 kg; the length of the tilapia is 24-27 cm, and the weight of the tilapia is 0.3-0.45 kg; the length of the grouper is 23-27 cm, and the weight of the grouper is 2.3-2.7 kg; the length of the penaeus monodon is 23-27 cm, and the weight of the penaeus monodon is 140-160 g; the body length of the carp is 33-37 cm, and the body weight of the carp is 1.5-2.5 kg; the body length of the grass carp is 58-63 cm, and the body weight is 4.8-5.5 kg; the length of the malva sylvestris is 33-37 cm, and the weight of the malva sylvestris is 2.3-2.7 kg; the length of the micropterus salmoides is 38-42 cm, and the weight of the micropterus salmoides is 1.8-2.2 kg; the length of the silver crucian carp is 17-19 cm, and the weight of the silver crucian carp is 0.8-1.2 kg; the length of the freshwater pomfret is 13-17 cm, and the weight of the freshwater pomfret is 0.4-0.7 kg; the black carp body length is 38-42 cm, and the weight is 9-12 kg.
3. The method of claim 2, wherein: the rainbow trout body length of the fish for testing is 40cm, the weight of the fish is 1kg, the body length of tilapia is 25cm, the weight of the tilapia is 0.4kg, the body length of grouper is 25cm, the weight of the grouper is 2.5kg, the body length of penaeus monodon is 25cm, the weight of the penaeus monodon is 150g, the body length of carp is 35cm, the weight of the carp is 2kg, the body length of grass carp is 60cm, the weight of the penaeus monodon is 5kg, the body length of malva sylvestris is 35cm, the weight of the penaeus monodon is 2.5kg, the body length of micropterus salmoides is 40cm, the weight of the carp is 2kg, the body length of silver crucian is 18cm, the weight of the carp is 1kg, the body length of freshwater pomfret is 15cm, the weight of the carp is 0.5.
4. The method of claim 3, wherein: the required optimal temperature of the rainbow trout is 17-20 ℃, the required optimal temperature of the tilapia is 28-32 ℃, the required optimal temperature of the grouper is 24-28 ℃, the required optimal temperature of the penaeus monodon is 27-31 ℃, the required optimal temperature of the carp is 22-26 ℃, the required optimal temperature of the grass carp is 24-28 ℃, the required optimal temperature of the malva sylvestris is 20-34 ℃, the required optimal temperature of the Micropterus salmoides is 20-30 ℃, the required optimal temperature of the silver carp is 25-32 ℃, the required optimal temperature of the freshwater pomfret is 24-32 ℃ and the required optimal temperature of the herring is 24-28 ℃.
5. The method according to any one of claims 1 to 4 for the selection of fish in an aqueous environment.
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Citations (5)
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JP2008309538A (en) * | 2007-06-13 | 2008-12-25 | Ishida Co Ltd | Combined weighing device |
CN103229733A (en) * | 2013-04-07 | 2013-08-07 | 北京市水产技术推广站 | Method for taming and breeding burbot fry by using artificial mixed feed |
CN104931120A (en) * | 2015-06-23 | 2015-09-23 | 李成启 | Cage fish-farming weight detection method |
CN105028273A (en) * | 2015-07-08 | 2015-11-11 | 安顺汇成特色农业科技发展有限责任公司 | Method for artificial domestication and cultivation of semilabeo notabilis |
CN105066885A (en) * | 2015-07-11 | 2015-11-18 | 浙江大学宁波理工学院 | Fish body dimension and weight rapid acquisition apparatus and acquisition method |
-
2016
- 2016-11-01 CN CN201610937190.9A patent/CN106577370B/en active Active
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2008309538A (en) * | 2007-06-13 | 2008-12-25 | Ishida Co Ltd | Combined weighing device |
CN103229733A (en) * | 2013-04-07 | 2013-08-07 | 北京市水产技术推广站 | Method for taming and breeding burbot fry by using artificial mixed feed |
CN104931120A (en) * | 2015-06-23 | 2015-09-23 | 李成启 | Cage fish-farming weight detection method |
CN105028273A (en) * | 2015-07-08 | 2015-11-11 | 安顺汇成特色农业科技发展有限责任公司 | Method for artificial domestication and cultivation of semilabeo notabilis |
CN105066885A (en) * | 2015-07-11 | 2015-11-18 | 浙江大学宁波理工学院 | Fish body dimension and weight rapid acquisition apparatus and acquisition method |
Non-Patent Citations (1)
Title |
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温度对葛氏鲈塘鳢摄食和生长的影响;李紫桥等;《安徽农业科学》;20140531;第42卷(第15期);第4662-4663页 * |
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