Breeding method of Sichuan parabramis pekinensis offspring seeds

Abstract

The invention provides a Sichuan parabramis pekinensis offspring seed breeding method which comprises the following steps: (1) draining water and cleaning a pond: completely emptying water in the pond, and thoroughly disinfecting; (2) water feeding: well water is injected, and it is ensured that dissolved oxygen is larger than 6 mg / L; (3) detoxifying and fertilizing water before releasing the seedlings: 2 days before releasing the seedlings, mixing an antidote with water, and splashing the whole pond for detoxifying; 1 day before the fries are put, water is added into the pond to the depth of 60-80 cm, compound lactic acid bacteria biological enzyme is activated with water for 4-6 h and then splashed to the water surface of the pond, and then a water body ecological restoration agent is diluted and splashed to the water surface of the pond; (4) putting fries: putting the fries into the pond in July every year; (5) bait casting and seedling emergence, wherein no bait is cast on the first day after the seedlings are cast; 2-5 days after the fries are put, initial feed is fed according to the frequency of 3 times per day; 6-30 days after the fries are put, initial feed is fed according to the frequency of 4 times per day, and then the fries can be harvested. By adjusting the water quality, the quality of the Sichuan parabramis pekinensis offspring seeds is improved, and a safe and healthy growth environment is provided for offspring seed growth.

Description

Technical Field

[0001] The present application relates to the technical field of fish seedling cultivation, and in particular to a method for cultivating Sichuan bream seedlings. Background Art

[0002] Sichuan bream (Sinibrama taeniatus) belongs to the Cypriniformes, Cyprinidae, Cultrinae, Sinibrama genus, and is distributed in the Minjiang River, Qingyi River, Dadu River, Jialing River and other river basins. It is a unique fish in the upper reaches of the Yangtze River. Sichuan bream, commonly known as ink thread fish, mainly feeds on zooplankton and is a rare and unique small economic fish in the upper reaches of the Yangtze River. In the breeding of Sichuan bream, its seedling cultivation has received more and more attention. In seedling cultivation, the role of water environment is crucial. The adoption of ecological breeding mode can control the eutrophication of water bodies to a certain extent and improve the transparency of water bodies. However, the water body regulation technology in the breeding of Sichuan bream seedlings needs to be further improved.

[0003] The existing Sichuan bream seedling cultivation mainly uses different open-mouthed baits for feeding, such as spirulina, egg yolk and yeast, and feeds once a day at 8:00, 11:00, 15:00 and 18:00 to ensure sufficient bait. Before each feeding, the remaining bait and feces in the breeding basin are cleaned, the water is changed once a day, and the growth of each seedling is measured separately. However, this cultivation method has the following defects:

[0004] (1) Unclear about stocking density; (2) The specifications of the fry cultured vary greatly; (3) The water quality of large-scale seed ponds is difficult to control; (4) During large-scale production, there may be large individual differences in seedling size and low survival rates, making large-scale seedling cultivation of no practical significance. Summary of the invention

[0005] In view of this, the present application provides a method for cultivating Sichuan bream seedlings, so as to improve the quality of Sichuan bream seedlings by regulating water quality and provide a safe and healthy growth environment for the seedlings.

[0006] A method for breeding Sichuan bream seedlings comprises the following steps: (1) Draining and clearing the pond: drain all the water in the pond and disinfect it thoroughly; (2) Water inlet: Inject well water and ensure that the dissolved oxygen is greater than 6 mg / L; (3) Detoxification and water fertilization before stocking: 2 days before stocking, add water to the detoxifier and spray it all over the pond for detoxification; 1 day before stocking, add water to the pond to a depth of 60-80 cm, activate the composite lactic acid bacteria bio-enzyme with water for 4-6 hours, and then spray it on the surface of the pond, and then dilute the water body ecological restoration agent and spray it on the surface of the pond, wherein the composite lactic acid bacteria bio-enzyme includes: Bacillus coagulans, Lactobacillus acidophilus, Lactobacillus plantarum, Bacillus subtilis, activator, stabilizer, growth promoting factor and carrier; the water body ecological restoration agent includes: Bacillus coagulans, Bacillus subtilis, biologically active enzyme and synergist; (4) Stocking: Stock the fish fry into the pond in July each year; (5) Feeding and germination: Do not feed any food on the first day after stocking; feed starter feed 3 times a day on the 2nd to 5th day after stocking; feed starter feed 4 times a day on the 6th to 30th day after stocking, and then the seedlings can be harvested.

[0007] Furthermore, in step (3), the antidote is an organic acid antidote, and the dosage of the antidote is 0.5 kg / mu.

[0008] Furthermore, in step (3), the dosage of the composite lactic acid bacteria bio-enzyme is 0.5 kg / mu.

[0009] Furthermore, in step (3), the composite lactic acid bacteria bio-enzyme comprises, by weight percentage: 20% Bacillus coagulans, 15% Lactobacillus acidophilus, 15% Lactobacillus plantarum, 10% Bacillus subtilis, 10% activator, 5% stabilizer, 10% growth promoting factor and 15% carrier.

[0010] Furthermore, in step (3), the amount of the water ecological restoration agent used is 2.5 kg / mu.

[0011] Furthermore, the water ecological restoration agent includes, by weight percentage, 40% Bacillus coagulans, 30% Bacillus subtilis, 5% biologically active enzyme and 25% synergist.

[0012] Furthermore, in step (5), the starter bait is a palatable granular feed.

[0013] Compared with the prior art, the beneficial effects of this application are: 1. Improve the quality of Sichuan bream seedlings by regulating water quality and provide a safe and healthy growth environment for the seedlings; 2. The use of this scheme improves the survival rate of Sichuan bream seedlings cultivated in large water bodies, forms commercial fry of uniform specifications, and has high economic benefits. DETAILED DESCRIPTION

[0014] In order to make the purpose, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments.

[0015] Embodiment 1: A method for breeding Sichuan bream seedlings comprises the following steps: Step (1), drain the pond water to a depth of 20 cm, sprinkle quicklime throughout the pond for disinfection, and after 2 days of disinfection, drain all the pond water, desilt and expose to the sun; Step (2), inject well water to a depth of 60 cm and ensure that the dissolved oxygen is greater than 6 mg / L; Step (3), 2 days before stocking, the detoxifier is diluted with water and sprayed on the whole pond for detoxification; 1 day before stocking, water is added to the pond to a depth of 60-80 cm, the composite lactic acid bacteria bio-enzyme is activated with water for 4-6 hours, and then sprayed on the surface of the pond, and then the water body ecological restoration agent is diluted and sprayed on the surface of the pond, wherein the composite lactic acid bacteria bio-enzyme includes: Bacillus coagulans, Lactobacillus acidophilus, Lactobacillus plantarum, Bacillus subtilis, an activator, a stabilizer, a growth-promoting factor and a carrier; the water body ecological restoration agent includes: Bacillus coagulans, Bacillus subtilis, a biologically active enzyme and a synergist; Step (4), stocking fish fry in July at a density of 120,000 per mu; Step (5), using palatable commercial bait for feeding, paying attention to the palatability of the fry at any time, not feeding any bait on the first day after stocking; on the third day after stocking, feeding the starter bait at a frequency of 3 times / day; on the 20th day after stocking, feeding the starter bait at a frequency of 4 times / day, and the fry can be harvested.

[0016] Embodiment 2: A method for breeding Sichuan bream seedlings comprises the following steps: Step (1), drain the pond water to a depth of 20 cm, sprinkle quicklime throughout the pond for disinfection, and after 2 days of disinfection, drain all the pond water, desilt and expose to the sun; Step (2), inject well water to a depth of 60 cm and ensure that the dissolved oxygen is greater than 6 mg / L; Step (3), 2 days before stocking, dilute the detoxifier with water and spray it all over the pond for detoxification, the detoxifier is an organic acid detoxifier, and the dosage of the detoxifier is 0.5 kg / mu; 1 day before stocking, add water to the pond to a depth of 60-80 cm, activate the composite lactic acid bacteria bio-enzyme with water for 4-6 hours, and then spray it on the surface of the pond, and then dilute the water body ecological restoration agent and spray it on the surface of the pond, wherein the composite lactic acid bacteria bio-enzyme includes: Bacillus coagulans, Lactobacillus acidophilus, Lactobacillus plantarum, Bacillus subtilis, an activator, a stabilizer, a growth promoting factor and a carrier; the water body ecological restoration agent includes: Bacillus coagulans, Bacillus subtilis, a biologically active enzyme and a synergist; Step (4), stocking fish fry in July at a density of 130,000 per mu; Step (5), using palatable commercial bait for feeding, paying attention to the palatability of the fry at any time, not feeding any bait on the first day after stocking; on the fourth day after stocking, feeding the starter bait at a frequency of 3 times / day; on the 25th day after stocking, feeding the starter bait at a frequency of 4 times / day, and the fry can be harvested.

[0017] Embodiment 3: A method for breeding Sichuan bream seedlings comprises the following steps: Step (1), drain the pond water to a depth of 20 cm, sprinkle quicklime throughout the pond for disinfection, and after 2 days of disinfection, drain all the pond water, desilt and expose to the sun; Step (2), inject well water to a depth of 60 cm and ensure that the dissolved oxygen is greater than 6 mg / L; Step (3), 2 days before stocking, dilute the detoxifier with water and spray it all over the pond for detoxification, wherein the detoxifier is an organic acid detoxifier, and the dosage of the detoxifier is 0.5 kg / mu; 1 day before stocking, add water to the pond to a depth of 60-80 cm, activate the composite lactic acid bacteria bio-enzyme with water for 4-6 hours, and then spray it on the surface of the pond, and then dilute the water body ecological restoration agent and spray it on the surface of the pond, wherein the dosage of the composite lactic acid bacteria bio-enzyme is 0.5 kg / mu, and the composite lactic acid bacteria bio-enzyme includes: Bacillus coagulans, Lactobacillus acidophilus, Lactobacillus plantarum, Bacillus subtilis, an activator, a stabilizer, a growth promoting factor and a carrier; the water body ecological restoration agent includes: Bacillus coagulans, Bacillus subtilis, a biologically active enzyme and a synergist; Step (4), stocking fish fry in July at a density of 150,000 per mu; Step (5), using palatable commercial bait for feeding, paying attention to the palatability of the fry at any time, not feeding any bait on the first day after stocking; on the fourth day after stocking, feeding the starter bait at a frequency of 3 times / day; on the 30th day after stocking, feeding the starter bait at a frequency of 4 times / day, and then the fry can be harvested.

[0018] Embodiment 4: A method for breeding Sichuan bream seedlings comprises the following steps: Step (1), drain the pond water to a depth of 20 cm, sprinkle quicklime throughout the pond for disinfection, and after 2 days of disinfection, drain all the pond water, desilt and expose to the sun; Step (2), inject well water to a depth of 60 cm and ensure that the dissolved oxygen is greater than 6 mg / L; Step (3), 2 days before stocking, the detoxifier is diluted with water and sprayed on the whole pond for detoxification, the detoxifier is an organic acid detoxifier, and the dosage of the detoxifier is 0.5kg / mu; 1 day before stocking, water is added to the pond to a depth of 60-80cm, the composite lactic acid bacteria bio-enzyme is activated with water for 4-6h, and then sprayed on the surface of the pond, and then the water body ecological restoration agent is diluted and sprayed on the surface of the pond, wherein the dosage of the composite lactic acid bacteria bio-enzyme is 0.5kg / mu, and the composite lactic acid bacteria bio-enzyme is 0.5kg / mu. The bacterial bio-enzyme, calculated by weight percentage, includes: 20% Bacillus coagulans, 15% Lactobacillus acidophilus, 15% Lactobacillus plantarum, 10% Bacillus subtilis, 10% activator, 5% stabilizer, 10% growth factor and 15% carrier; the water body ecological restoration agent, calculated by weight percentage, includes 40% Bacillus coagulans, 30% Bacillus subtilis, 5% biologically active enzyme and 25% synergist, and the dosage of the water body ecological restoration agent is 2.5kg / mu; Step (4), stocking fish fry in July at a density of 150,000 per mu; Step (5), using palatable commercial bait for feeding, paying attention to the palatability of the fry at any time, not feeding any bait on the first day after stocking; on the fourth day after stocking, feeding the starter bait at a frequency of 3 times / day; on the 30th day after stocking, feeding the starter bait at a frequency of 4 times / day, and then the fry can be harvested.

[0019] The present application provides a set of technical solutions for the large-scale cultivation and breeding of Sichuan bream seedlings, and the method has a high survival rate, strong physique and uniform specifications for the cultivated seedlings.

[0020] The above are only specific implementations of the present application, but the protection scope of the present application is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

Claims

1. A method for breeding bream seedlings in Sichuan, characterized in that: The steps include: (1) Draining and clearing the pond: drain all the water in the pond and disinfect it thoroughly; (2) Water inlet: Inject well water and ensure that the dissolved oxygen is greater than 6 mg / L; (3) Detoxification and water fertilization before stocking: 2 days before stocking, add water to the detoxifier and spray it all over the pond for detoxification; 1 day before stocking, add water to the pond to a depth of 60-80 cm, activate the composite lactic acid bacteria bio-enzyme with water for 4-6 hours, and then spray it on the surface of the pond, and then dilute the water body ecological restoration agent and spray it on the surface of the pond, wherein the composite lactic acid bacteria bio-enzyme includes: Bacillus coagulans, Lactobacillus acidophilus, Lactobacillus plantarum, Bacillus subtilis, activator, stabilizer, growth promoting factor and carrier; the water body ecological restoration agent includes: Bacillus coagulans, Bacillus subtilis, biologically active enzyme and synergist; (4) Stocking: Stock the fish fry into the pond in July each year; (5) Feeding and germination: Do not feed any food on the first day after stocking; feed starter feed 3 times a day on the 2nd to 5th day after stocking; feed starter feed 4 times a day on the 6th to 30th day after stocking, and then the seedlings can be harvested.

2. A method for breeding bream seedlings in Sichuan as claimed in claim 1, characterized in that: In the step (3), the antidote is an organic acid antidote, and the dosage of the antidote is 0.5 kg / mu.

3. A method for breeding bream seedlings in Sichuan as claimed in claim 1 or 2, characterized in that: In the step (3), the dosage of the composite lactic acid bacteria bio-enzyme is 0.5 kg / mu.

4. A method for breeding bream seedlings in Sichuan as claimed in claim 3, characterized in that: In the step (3), the composite lactic acid bacteria bio-enzyme comprises, by weight percentage: 20% Bacillus coagulans, 15% Lactobacillus acidophilus, 15% Lactobacillus plantarum, 10% Bacillus subtilis, 10% activator, 5% stabilizer, 10% growth promoting factor and 15% carrier.

5. A Sichuan bream seedling cultivation method as claimed in claim 4, characterized in that: In the step (3), the amount of the water body ecological restoration agent used is 2.5 kg / mu.

6. A method for breeding bream seedlings in Sichuan as claimed in claim 5, characterized in that: The water body ecological restoration agent comprises, by weight percentage, 40% of Bacillus coagulans, 30% of Bacillus subtilis, 5% of biologically active enzyme and 25% of synergist.

7. A method for breeding bream seedlings in Sichuan as claimed in claim 6, characterized in that: In the step (5), the starter bait is a palatable granular feed.