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Artificial-inducing mixing agent and artificial breeding method for largemouth bass

A technology of artificial induced labor and artificial breeding, applied in fish farming, drug combination, medical formula, etc., can solve the problems of low egg fertilization and hatching rate, insufficient nutrient supply, poor survival rate of seedlings, etc., so as to improve the quality of eggs , Reduce egg atresia and overripe phenomenon, reduce the effect of occurrence probability

Active Publication Date: 2020-11-20
FRESHWATER FISHERIES RES CENT OF CHINESE ACAD OF FISHERY SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

During each broodstock spawning cycle, there may be 30%-50% eggs due to insufficient nutrient supply or inability to ovulate in time, resulting in atresia or over-ripe eggs, resulting in a decline in egg quality, low fertilization and hatching rates of eggs, and seedling survival Rate difference and other issues

Method used

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  • Artificial-inducing mixing agent and artificial breeding method for largemouth bass
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  • Artificial-inducing mixing agent and artificial breeding method for largemouth bass

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0047] A set of improved techniques for the cultivation and artificial breeding of largemouth bass broodstock comprises the following steps:

[0048] Step 1. One month before broodstock breeding, select male and female broodstock with normal body shape and color, strong physique, and no disease or disability. Put the selected broodstock into running water with a water temperature of 24°C and a water flow rate of 15L / min. During the cultivation period, the protein level was 44%, and the feed oil level was 10% (fish oil: soybean oil: coconut oil according to the ratio of 60%: 20%: 20%) was fed twice a day. Every 2 days, spray 100mg of vitamin E+vitamin A mixture (1:2) per kilogram of feed to feed broodstock once to accelerate gonad development and maturation. At the same time, conventionally cultured largemouth bass broodstock were selected as the control group, and fed with California perch special feed produced by Zhejiang Xinxin Tianen Aquatic Feed Co., Ltd., with a crude pr...

Embodiment 2

[0061] A set of improved techniques for the cultivation and artificial breeding of largemouth bass broodstock comprises the following steps:

[0062] Step 1. One month before broodstock breeding, select male and female broodstock with normal body shape and color, strong physique, and no disease or disability. Put the selected broodstock into running water with a water temperature of 22°C and a water flow rate of 10 L / min. During the cultivation period, the protein level was 45%, and the feed oil level was 9% (fish oil: soybean oil: coconut oil according to the ratio of 50%: 20%: 30%) twice a day. Every 2 days, spray 100mg of vitamin E+vitamin A mixture (1:2) per kilogram of feed to feed broodstock once to accelerate gonad development and maturation. At the same time, conventionally cultured largemouth bass broodstock were selected as the control group. At the same time, conventionally cultured largemouth bass broodstock were selected as the control group, and fed with Califo...

Embodiment 3

[0078] In order to explore the effect of the oxytocic mixture that utilizes the compounding of oxytocic drugs to obtain in the present invention, the following single factor experiment has been carried out:

[0079] Carry out broodstock cultivation and selection according to the broodstock cultivation method in the experimental group of Example 1 of the present invention, select 32 female fishes and 16 male fishes with the same specification and the same cultivation time, and be randomly divided into four groups, which are respectively experimental group 1, experimental group Group 2, experimental group 3 and control group, 8 female fish and 4 male fish in each group, artificially induce labor for experimental group 1-3: the oxytocin drug for experimental group 1 is chorionic gonadotropin 1500IU / mL + luteinizing hormone Release hormone analogue No. 2 200μg / mL + dioconone maleate 10mg / mL mixture; the oxytocin drug selected for experimental group 2 was chorionic gonadotropin 1500...

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Abstract

The invention discloses an artificial-inducing mixing agent and artificial breeding method for largemouth bass, and belongs to the technical field of aquatic animal breeding. The provided mixing agentincludes chorionic gonadotropin, luteinizing hormone releasing hormone analogue No.2 and DOM. Through the adoption of the mixing agent to artificially breed largemouth bass, bred females can have high brood amount, high egg maturity can be achieved, fertilization rate and hatchability can be significantly increased, the breeding efficiency of the largemouth bass can be effectively enhanced, and time can be saved.

Description

technical field [0001] The invention relates to the technical field of breeding and breeding of aquatic animals, in particular to an artificial oxytocin mixture for largemouth bass broodstock and an artificial breeding method. Background technique [0002] Eating perch is good for nourishing the liver and kidney, benefiting the spleen and stomach, resolving phlegm and relieving cough, and it can also help wound healing and promote brain development in children. In recent years, with the gradual improvement of consumers' requirements for the quality of aquatic products, sea bass has replaced the four major carp, crucian carp, black fish, etc., and has become an important consumer product on everyone's table, and the consumer market continues to expand. Since the supply of broodstock and seedlings of perch is far from meeting the market demand, the price of perch is always on the rise and has a very high market value. [0003] Bass is cultivated in a wide range of waters. It ...

Claims

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Application Information

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IPC IPC(8): A61K38/24A61P15/08A01K61/10A01K61/17A61K38/09A61K31/454
CPCA61K38/24A61K38/09A61K31/454A61P15/08A01K61/10A01K61/17A61K2300/00Y02A40/81
Inventor 强俊曹哲明何杰陶易凡朱昊俊包景文徐跑
Owner FRESHWATER FISHERIES RES CENT OF CHINESE ACAD OF FISHERY SCI
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