LU601397B1 - A breeding method for Micropterus salmoides - Google Patents
A breeding method for Micropterus salmoidesInfo
- Publication number
- LU601397B1 LU601397B1 LU601397A LU601397A LU601397B1 LU 601397 B1 LU601397 B1 LU 601397B1 LU 601397 A LU601397 A LU 601397A LU 601397 A LU601397 A LU 601397A LU 601397 B1 LU601397 B1 LU 601397B1
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- micropterus salmoides
- breeding
- during
- breeding method
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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
- A01K61/10—Culture of aquatic animals of fish
-
- 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)
- Cultivation Of Plants (AREA)
- Micro-Organisms Or Cultivation Processes Thereof (AREA)
Abstract
The invention belongs to the field of aquaculture and specifically relates to a breeding method for Micropterus salmoides. The breeding method satisfies one or more of the following conditions: (i) during the breeding process, illumination is provided with an intensity of 150 lx to 250 lx; (ii) during the breeding process, the water flow rate is 1 body length per second (1 bl/s) to 2 body lengths per second (2 bl/s); (iii) during the breeding process, the feeding frequency is twice a day. The breeding method provided by the invention can significantly reduce cannibalistic behavior among Micropterus salmoides, improve survival rates during cultivation, promote rapid growth, optimize physiological indicators, and enhance the quality of aquaculture.
Description
DESCRIPTION LU601397
A BREEDING METHOD FOR MICROPTERUS SALMOIDES
The present invention belongs to the field of aquaculture and specifically relates to a breeding method for Micropterus salmoides.
Micropterus salmoides is a widely cultivated freshwater fish species, favored by the market for its delicious taste and fast growth rate. However, traditional methods of breeding Micropterus salmoides face several issues, such as severe cannibalistic behavior, slow growth, and poor health conditions. These problems significantly affect breeding efficiency and product quality. Conventional breeding models are typically conducted in standard aquaculture environments, lacking precise control over environmental factors such as lighting, feeding frequency, and water flow rate. As a result, the growth potential of Micropterus salmoides is not fully realized, making it difficult to meet market demand for high-quality Micropterus salmoides products.
The present invention effectively reduces cannibalistic behavior among Micropterus salmoides, increases survival rates during cultivation, and promotes rapid growth by regulating environmental factors such as light intensity, feeding frequency, and water flow rate.
To achieve the above objectives, the invention provides the following technical 501397 solution:
On one hand, the invention provides a method for culturing Micropterus salmoides, wherein the method meets one or more of the following conditions: (i) During the breeding process, lighting is applied, with the light intensity being 150 Ix to 250 Ix; (ii) During the breeding process, the water flow rate is 1 bl/s to 2 bl/s; (iii) During the breeding process, the feeding frequency is twice per day.
Preferably, in the above-mentioned breeding method, the light intensity may be 200
Ix.
Preferably, in the above-mentioned breeding method, the duration of lighting may be to 14 hours per day.
More preferably, the duration of lighting may be 12 hours per day.
Preferably, in the above-mentioned breeding method, the water flow rate during the breeding process is 1.5 bl/s.
Preferably, the above-mentioned breeding method also meets one or more of the following conditions: (a) During the breeding process, the water temperature is 15°C to 30°C; (b) During the breeding process, the dissolved oxygen level is greater than 5 mg/L.
The beneficial effects of the present invention include: the breeding method provided by the invention can significantly reduce cannibalistic behavior among Micropterus salmoides, improve survival rates, promote rapid growth, optimize physiological parameters, and enhance the quality of aquaculture.
BRIEF DESCRIPTION OF THE FIGURES LU601397 igure 1a shows the weight gain rate of each group of Micropterus salmoides in the light intensity experiment;
Figure 1b shows the specific growth rate of each group of Micropterus salmoides in the light intensity experiment;
Figure 1c shows the liver-to-body ratio of each group of Micropterus salmoides in the light intensity experiment;
Figure 1d shows the conditional factors of each group of Micropterus salmoides in the light intensity experiment;
Figure 1e shows the attack behavior of each group of Micropterus salmoides in the light intensity experiment;
Figure 1f shows the number of chasing times of each group of Micropterus salmoides in the light intensity experiment;
Figure 2a shows the weight gain rate of each group of Micropterus salmoides in the feeding frequency experiment;
Figure 2b shows the specific growth rate of each group of Micropterus salmoides in the feeding frequency experiment;
Figure 2c shows the liver-to-body ratio of each group of Micropterus salmoides in the feeding frequency experiment;
Figure 2d shows the conditional factors of Micropterus salmoides in each group of feeding frequency experiment;
Figure 2e shows the attack behavior in the behavioral indicators of Micropterus salmoides in each group of feeding frequency experiment;
Figure 2f shows the number of chasing times in the behavioral indicators of
Micropterus salmoides in each group of feeding frequency experiment;
Figure 3a shows the weight gain rate of Micropterus salmoides in each group of flow velocity experiment;
Figure 3b shows the specific growth rate of Micropterus salmoides in each group of flow velocity experiment;
Figure 3c shows the liver-body ratio of Micropterus salmoides in each group of flow 60 1397 velocity experiment;
Figure 3d shows the conditional factors of Micropterus salmoides in each group of flow velocity experiment;
Figure 3e shows the attack behavior in the behavioral indicators of Micropterus salmoides in each group of flow velocity experiment;
Figure 3f shows the number of chasing times in the behavioral indicators of
Micropterus salmoides in each group of flow velocity experiment.
The examples given are intended to better illustrate the present invention, but the content of the present invention is not limited to the examples given. Therefore, those familiar with the art may make non-essential improvements and adjustments to the implementation scheme according to the above invention content, which still belongs to the protection scope of the present invention.
The terms used herein are only used to describe specific embodiments and are not intended to limit the present disclosure. Unless the context has a significantly different meaning, expressions in the singular include expressions in the plural. As used herein, it should be understood that terms such as "including", "having", "including" are intended to indicate the presence of features, numbers, operations, components, parts, elements, materials or combinations. The terms of the present invention are disclosed in the specification and are not intended to exclude the possibility that one or more other features, numbers, operations, components, parts, elements, materials or combinations thereof may exist or may be added. As used herein, "/" may be interpreted as "and" or "or", depending on the circumstances.
The embodiment of the present invention provides a culture method for Micropterys 601397 salmoides, wherein the culture method satisfies one or more of the following conditions: (i) During the culture process, lighting is applied, with the light intensity being 150 Ix— 250 Ix, for example, 170 Ix, 200 Ix, or 220 Ix, etc.; specifically, stable lighting conditions are provided during the culture process to promote metabolism and feeding activity, and reduce cannibalistic behavior; (i) During the culture process, the water flow rate is 1 bl/s—2 bl/s, for example, 1.1 bl/s, 1.3 bl/s, 1.5 bl/s, or 1.7 bl/s, etc.; (iii) During the culture process, the feeding frequency is twice per day; specifically,
Micropterus salmoides are fed twice daily using apparent satiation feeding, in order to meet their energy requirements, improve weight gain rate and specific growth rate, and at the same time reduce cannibalism caused by food competition.
It should be noted that in the present invention, it is found that by regulating environmental factors such as lighting, water flow speed, and feeding frequency, cannibalistic behavior among Micropterus salmoides can be effectively reduced, survival rate during culture improved, rapid growth promoted, physiological indicators optimized, and the quality of aquaculture enhanced.
It should also be noted that experimental verification shows that the weight gain rate of the group fed twice daily is approximately 20.63% higher than that of the group fed once daily, and approximately 5.16% higher than that of the group fed three times daily; the specific growth rate is about 12.09% higher than that of the group fed once daily, and about 2.95% higher than that of the group fed three times daily.
In some specific examples, in the above culture method, the light intensity may be 200 Ix.
It should be noted that in the present invention, the light intensity can preferably be 200 Ix. Experimental verification shows that the weight gain rate under 200 Ix light intensity is about 25.37% higher than that under 50 Ix, and about 15.17% higher than that under 500 Ix. Meanwhile, under medium light intensity, Micropterus salmoides tend to engage more in group activity, thereby reducing aggressive behavior among individuals.
In some specific examples, in the above culture method, the duration of lighting MaY 601397 be 10 h—14 h per day, for example, 11 h, 12 h, or 13 h, and preferably 12 h, which shows better effects.
In some specific examples, in the above culture method, the water flow rate during the culture process is 1.5 bl/s.
It should be noted that experimental verification shows that the hepatosomatic index (HSI) under a flow rate of 1.5 bl/s is approximately 32.30% higher than that under 0.5 bl/s and approximately 36.82% higher than that under 2.5 bl/s. Meanwhile, a flow rate of 1.5 bl/s can promote the uniform distribution of dissolved oxygen in the water and enhance metabolism.
In some specific examples, the above culture method also satisfies one or more of the following conditions: (a) During the culture process, the water temperature is 15°C—30°C; (b) During the culture process, the dissolved oxygen is 5 mg/L.
It should be noted that the culture method also includes monitoring and regulating other environmental factors in the culture environment, such as dissolved oxygen and water temperature, to ensure the healthy growth of Micropterus salmoides.
In order to better understand the present invention, the following specific examples are provided to further explain the content of the invention, but the content of the present invention is not limited to the following examples.
Lighting intensity regulation experiment
Healthy juvenile Micropterus salmoides of similar body weight [average body weight (3.3+0.2) g] were selected and randomly divided into three groups, namely the Low Light group, Medium Light group, and High Light group, each group having three replicates; the
Low Light group, Medium Light group, and High Light group were cultured under light intensities of 50 Ix, 200 Ix, and 500 Ix respectively, with a lighting duration of 12 hours per day; meanwhile, all groups were maintained at the same water temperature [(23+1)°C], dissolved oxygen [(6.2+0.5) mg/L], water flow speed, and feeding frequency, with the water flow speed being 1.5 bl/s and feeding frequency being twice per day (apparent satiation feeding according to the weight and growth stage of the Micropterus salmoides),
the experimental period lasted for 30 days. The body weight, body length, hepatosomatj¢ 50 1397 index, condition factor, and other growth indicators of Micropterus salmoides in each group were measured regularly, and behavioral data such as chasing frequency and aggressive behavior were recorded.
The results are as follows:
The weight gain rate (WGR) of Micropterus salmoides in each group is shown in
Figure 1a. The results show that the WGR of the Medium Light group is 132.21%, significantly higher than 105.46% in the Low Light group and 114.80% in the High Light group;
In addition, the specific growth rate (SGR) of each group of Micropterus salmoides is shown in Figure 1b. The results show that the SGR of the Medium Light group is 5.96%, higher than 5.13% in the Low Light group and 5.46% in the High Light group;
In addition, the hepatosomatic index (HSI) of each group of Micropterus salmoides is shown in Figure 1c. The results show that the HSI of the Low Light group is 2.18%, higher than 1.54% in the Medium Light group and 1.56% in the High Light group;
In addition, the condition factor of each group of Micropterus salmoides is shown in
Figure 1d. The results show that the condition factor of the Low Light group is 1.20%, higher than 1.19% in the Medium Light group and 1.10% in the High Light group.
Furthermore, the behavioral indicators of each group of Micropterus salmoides are shown in Figures 1e and 1f. The results show that aggressive behavior in the Medium
Light group is significantly reduced (Figure 1e), and the frequency of chasing is significantly decreased (Figure 1f).
From the above, it can be concluded that under medium light intensity (200 Ix), the
WGR and SGR of Micropterus salmoides are significantly increased, HSI and condition factor reach more optimal levels, while chasing frequency and aggressive behavior are significantly reduced, effectively decreasing the incidence of cannibalism.
Feeding frequency strategy experiment LU601397
Healthy juvenile Micropterus salmoides of similar body weight [average body weight (3.3+0.2) g] were selected and randomly divided into three groups, namely the 1
Meal/Day group, 2 Meal/Day group, and 3 Meal/Day group; the 1 Meal/Day group, 2
Meal/Day group, and 3 Meal/Day group were fed once, twice, and three times a day respectively; feeding amount was determined based on body weight and growth stage of the Micropterus salmoides using apparent satiation feeding; meanwhile, all groups were maintained at the same water temperature [(23+1)°C], dissolved oxygen [(6.2+0.5) mg/L], light intensity and water flow rate, with water flow speed of 1.5 bl/s, light intensity of 200 Ix, and lighting duration of 12 hours per day; the experimental period lasted for 30 days. The body weight, body length, hepatosomatic index, condition factor, and other growth indicators of Micropterus salmoides in each group were measured regularly, and behavioral data such as chasing frequency and aggressive behavior were recorded.
The results are as follows:
The weight gain rate (WGR) of each group of Micropterus salmoides is shown in
Figure 2a. The results show that the WGR of the 2 Meal/Day group is 198.63%, significantly higher than 164.65% in the 1 Meal/Day group and 188.88% in the 3
Meal/Day group;
In addition, the specific growth rate (SGR) of each group of Micropterus salmoides is shown in Figure 2b. The results show that the SGR of the 2 Meal/Day group is 4.54%, higher than 4.05% in the 1 Meal/Day group and 4.41% in the 3 Meal/Day group;
In addition, the hepatosomatic index (HSI) of each group of Micropterus salmoides is shown in Figure 2c. The results show that the HSI of the 1 Meal/Day group is 1.89%, higher than 1.51% in the 2 Meal/Day group and 1.39% in the 3 Meal/Day group;
In addition, the condition factor of each group of Micropterus salmoides is shown in
Figure 2d. The results show that the condition factor of the 2 Meal/Day group is 1.26%, higher than 1.14% in the 1 Meal/Day group and 1.16% in the 3 Meal/Day group;
Furthermore, the behavioral indicators of each group of Micropterus salmoides are shown in Figures 2e and 2f. The results show that the chasing frequency in the 2
Meal/Day group is significantly decreased (Figure 2f), and aggressive behavior is obviously reduced (Figure 2e).
From the above data, it can be concluded that a feeding frequency of twice per d3Y 6041397 can significantly increase the weight gain rate and specific growth rate of Micropterus salmoides, optimize HSI and condition factor, and at the same time reduce cannibalistic behavior caused by food competition.
Flow rate regulation experiment
Healthy juvenile Micropterus salmoides of similar body weight [average body weight (3.3+0.2) g] were selected and randomly divided into three groups, namely the Low
Speed group, Medium Speed group, and High Speed group; the water flow rates of the
Low Speed group, Medium Speed group, and High Speed group were 0.5 bl/s, 1.5 bl/s, and 2.5 bl/s respectively. Meanwhile, all groups were maintained at the same light, water temperature [(23+1)°C], dissolved oxygen [(6.2+0.5) mg/L], and feeding frequency; the light intensity was 200 Ix, the lighting duration was 12 hours per day, and the feeding frequency was twice daily (apparent satiation feeding based on the weight and growth stage of the Micropterus salmoides), the experimental period lasted for 30 days. The body weight, body length, hepatosomatic index, condition factor, and other growth indicators of Micropterus salmoides in each group were measured regularly, and behavioral data such as chasing frequency and aggressive behavior were recorded.
The WGR of each group of Micropterus salmoides is shown in Figure 3a. The results show that the WGR of the Low Speed group is 46.89%, significantly higher than 43.61% in the Medium Speed group and 39.20% in the High Speed group;
In addition, the SGR of each group of Micropterus salmoides is shown in Figure 3b.
The results show that the SGR of the Low Speed group is 1.28%, higher than 1.20% in the Medium Speed group and 1.10% in the High Speed group;
In addition, the HSI of each group of Micropterus salmoides is shown in Figure 3c.
The results show that the HSI of the Medium Speed group is 2.15%, higher than 1.62% in the Low Speed group and 1.57% in the High Speed group;
In addition, the condition factor of each group of Micropterus salmoides is shown in
Figure 3d. The results show that the condition factor of the Medium Speed group is 1.09%, higher than 1.05% in the Low Speed group and 1.04% in the High Speed group;
Furthermore, the behavioral indicators of each group of Micropterus salmoides are 601397 shown in Figures 3e and 3f. The results show that the chasing frequency in the Medium
Speed group is significantly decreased (Figure 3f), and aggressive behavior is obviously reduced (Figure 3e).
From the above data, it can be concluded that under the medium flow rate environment (1.5 bl/s), the WGR and SGR of Micropterus salmoides are significantly improved, HSI and condition factor reach more optimal states, while chasing frequency and aggressive behavior are significantly reduced, effectively reducing the incidence of cannibalism.
Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solution of the present invention can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution of the present invention, which should be covered by the scope of the claims of the present invention.
Claims (7)
1. A breeding method for Micropterus salmoides, characterized in that the method satisfies one or more of the following conditions: (I) during the breeding process, illumination is provided, and the light intensity is 150 Ix to 250 Ix; (ii) during the breeding process, the water flow rate is 1 body length per second (1 bl/s) to 2 body lengths per second (2 bl/s); (iii) during the breeding process, the feeding frequency is twice a day.
2. The breeding method according to claim 1, characterized in that the light intensity is 200 Ix.
3. The breeding method according to claim 1 or 2, characterized in that the illumination duration is 10 to 14 hours per day.
4. The breeding method according to claim 3, characterized in that the illumination duration is 12 hours per day.
5. The breeding method according to claim 1, 2, or 4, characterized in that the water flow rate during the breeding process is 1.5 body lengths per second (1.5 bl/s).
6. The breeding method according to claim 3, characterized in that the water flow rate during the breeding process is 1.5 body lengths per second (1.5 bl/s).
7. The breeding method according to claim 1, 2, 4, or 6, characterized in that the method further satisfies one or more of the following conditions: (a) during the breeding process, the water temperature is between 15 °C and 30 °C; (b) during the breeding process, the dissolved oxygen content is greater than 5 mg/L.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202510435482.1A CN119999609A (en) | 2025-04-09 | 2025-04-09 | How to Breed Largemouth Bass |
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| LU601397B1 true LU601397B1 (en) | 2025-10-29 |
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| LU601397A LU601397B1 (en) | 2025-04-09 | 2025-04-29 | A breeding method for Micropterus salmoides |
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| CN (1) | CN119999609A (en) |
| LU (1) | LU601397B1 (en) |
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- 2025-04-09 CN CN202510435482.1A patent/CN119999609A/en active Pending
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