Osmanthus fish breeding methods and precautions?

1. Pond conditions: the pond area is generally 2-4 acres, the water depth is about 2 meters, mainly rectangular, the water quality is fresh, the bottom mud is little or none, and the drainage and irrigation aeration equipment is complete.

2. Bait fish breeding: According to the principle of good palatability and low economic cost, you can choose silver carp, white carp, bream, silver carp and other fish fry as bait fish. Using the idle period before stocking osmanthus pond to cultivate the early bait fish, you can breed crucian carp or bream fry by yourself, and you can also put all kinds of fish fry about 20 days before the osmanthus fish is stocked, and the stocking amount per mu is 40 600,000 fish.

Its feeding method is fed with soybean milk or other feed, and the bait fish in the middle and late stages must be raised in special pools, and it is advisable to adopt multi-pool high-density feeding, starting from the catch in stages, and gradually thinning the method to ensure the synchronous growth of bait fish and guiyu.

3. Stocking of Guiyu fingerlings: the stocking time is generally June, and the stocking specifications are suitable for 6-10 cm, which has the advantage of high survival rate and fast growth rate. Generally, the stocking amount per mu is 500-800.

4. Bait fish feeding: during the breeding of adult fish, it is advisable to be able to eat enough every day, if the bait fish is too little and there is a state of hunger, it will affect the growth of the osmanthus fish or kill each other.

5. Water quality control: Guiyu pond should regulate the water quality and change the water frequently. The high temperature season from June to September is the peak season for feeding, so it is necessary to inject water once a week, change the water meter each time, and keep the pool water transparent by more than 40 cm.

The cultivation methods and precautions of osmanthus are as follows:

First, the breeding method.

1. Soil. Osmanthus is suitable for growing in loose and fertile slightly acidic soil, and can be mixed evenly with humus soil, garden soil, river sand, and cake fertilizer in accordance with the ratio of 2:3:3:2 as culture soil.

2. Illumination. Osmanthus loves sunlight and can receive light throughout the day. In the case of high temperature in summer, shade maintenance is required. In the early stage of flowering, it needs to be exposed to enough sunlight to promote flower bud differentiation.

3. Watering. Osmanthus likes to be moist, can be watered regularly, but avoid stagnant water, when the soil is dry, water in time, watering to water thoroughly.

4. Fertilization. Osmanthus can be fertilized every 15-30 days during the growth period, mainly liquid fertilizer. Apply phosphorus and potassium fertilizer before and after flowering to supplement nutrients.

2. Precautions.

1. After the osmanthus blooms, the residual flowers need to be removed, and the excess branches should also be cut off. The dead branches, diseased branches, and thin branches of osmanthus should also be pruned in time to facilitate the growth of osmanthus.

2. Osmanthus is not suitable for growing in a low temperature environment, the northern winter is relatively cold, and osmanthus needs to be wrapped with film to prevent the plant from being frozen.

The cultivation of osmanthus includes pond conditions, stocking of fry, and feeding management.

1. Pond conditions

Cultivating osmanthus fish should choose a pond with leeward spring and sunny spring, sandy loam soil bottom and flat pond bottom.

2. Stocking fish fry

When stocking osmanthus fish, put it in the water with a plastic bag for 20 minutes to slow down the seedlings.

3. Feeding management

Feed the osmanthus fish with bait once every 7-10 days.

The life habits of osmanthus fish are clear

Osmanthus fish is a completely freshwater living fish, like to inhabit rivers, lakes, reservoirs and other aquatic plants lush and clean water bodies, during the day generally lurking at the bottom of the water, at night out of the activity foraging. I don't like to do long-distance wandering and migration, and I don't like to live in groups.

The suitable water temperature for life is 15 32. However, some scholars have shown that in the range of 10 25, with the increase of temperature, the specific growth rate of osmanthus increases with the increase of temperature, while there is no significant change between 25 and 35, and when the water temperature reaches 35, the growth of osmanthus fish does not slow down significantly, which is related to the general fish and water temperature research results.

That is, in a certain temperature range, the feeding rate and growth rate of fish increase with the increase of water temperature, when the water temperature exceeds the optimal water temperature, the feeding rate and growth rate of fish will decrease inconsistently, which indicates that the optimal growth temperature of osmanthus may be wider.

Osmanthus fish is a carnivorous fish, ferocious and feeds on fish and other aquatic animals throughout its life, eats other fry in the larval stage, and mainly preys on small fish and shrimp such as bream and shark and seems to be at 200 mm, and also eats tadpoles and small frogs; When it is above 250 mm, it mainly feeds on carp, crucian carp and other fish. Feeding stops in winter, and hunts at night in spring, summer and autumn.

The first culture technique for cultivating osmanthus is how to select pondsGenerally, when breeding osmanthus fish, there are certain conditions for the selection of ponds, generally this set of areas are 2 to 4 acres, and the water depth is about two meters.

Mainly rectangular, for the water quality is also rectangular, and the water quality needs to be very clean, the mud at the bottom of the water is less or there are no important facilities for drainage and irrigation, and the school equipment is very complete.

The second breeding technique in the cultivation of osmanthus fish is the cultivation of some forage fishIn order to make the osmanthus fish grow more rapidly and bring higher benefits, you can choose some silver carp, white carp, bream, silver carp and other fish fry as bait.

During the free period of breeding osmanthus fish, some bait can be fed to provide some natural food, and then when the osmanthus fish is put into the pond for stocking, some bait can be put in the first 20 days.

The third breeding technology in the cultivation of osmanthus fish is how to stocking the fry of osmanthus fishGenerally, the screening time for Guiyu fry is around June every year, and the size of stocking is required to be 6 to 10 cm.

This time is June is more suitable for the growth of osmanthus fish for temperature, and their survival rate and growth rate are very high, generally the stocking amount per mu is about 500 to 800.

First, osmanthus fish breeding technology and cost 1, before the cultivation of osmanthus fish, to raise bait fish, and then stocking osmanthus fry, so that the fry in the first time to get sufficient nutrition. After stocking the fish fry, we should pay attention to regulating the water quality, inject water once a week, and feed concentrate feed to promote its growth, but pay attention to the number of feeds, not too much. After the fry grow to a week, they can be fed with pellets, and do a good job of fertilization, fish disease prevention and other measures.

2. When stocking osmanthus fish, it is necessary to first stock silver carp, bighead carp, rohu, mrigal, rohu and other fry in the pond as the early bait fish of osmanthus fish. Can be fed with peanut bran, wheat husk and other roughage every day, after 15-20 days of cultivation, when the bait fish grows to a centimeter body length, you can first use copper sulfate and strong chlorine insecticidal disinfection, and then put 2-3 cm size osmanthus fry breeding.

3. The cost of cultivating osmanthus mainly includes seedlings, bait, breeding tools, manual management and other expenses. Generally, the fry are about 3-10cm, the early osmanthus fish needs to put about 2000 seedlings per mu, the middle osmanthus fish needs to put about 4000 per mu, and the late osmanthus fish needs to put about 5000 seedlings per mu. According to the calculation of 8 yuan and 10 osmanthus fry, the cost of early osmanthus fry is 1600 yuan, the cost of mid-term osmanthus fry is 3200 yuan, and the cost of late osmanthus fry is 4000 yuan.

Coupled with manual management, the cost of bait is 2000 yuan, and it is calculated that the cost of early osmanthus fish breeding needs to be about 3600 yuan, the cost of osmanthus fish breeding in the middle period needs to be about 5200 yuan, and the cost of late osmanthus fish breeding needs to be about 6000 yuan.

Fish pond environment: Choose to build osmanthus fish ponds in ponds with little or no sand on the bottom. Water Quality Requirements:

The amount of dissolved oxygen in the water is more than 5 milligrams per liter of water, and the pH value is between 7-8. Fry stocking: Fry of size centimeters are selected for stocking.

Disease prevention: Regularly sprinkle disinfectants such as bromochlorohydantoin on pool water.

1. Fish pond environment

When cultivating osmanthus fish, choose to build a fish pond around the pond with little or no sand at the bottom, convenient drainage and irrigation, away from pollution, and abundant water resources, the water level depth is between meters, and the fish pond is best rectangular, and the anti-escape device is installed at the inlet and outlet.

2. Water quality requirements

Osmanthus has higher requirements for water quality, to ensure no pollution, the amount of dissolved oxygen in the water is more than 5 mg per liter of water, and the pH value is between 7-8, the visible transparency can not be less than 30 cm, and the quicklime is splashed every 10 days to adjust the pH value of the pool water.

3. Stocking of fish fry

Osmanthus fish is generally stocked in June in summer, to select the size of the size of the centimeter of fry, the density of each mu is 800-1200, soak in salt water for 10 minutes before stocking, the water temperature is kept at 23-28 degrees, which is conducive to the foraging and normal growth of the fry.

4. Disease prevention

During the breeding of osmanthus fish, it is easy to be infected with bacterial gill rot, parasitic diseases and hemorrhagic diseases, and regularly splash disinfectants such as bromochlorohydantoin or chlorine dioxide into the pool water**, add bleeding and other agents to the bait, and feed them continuously for 5 days**.

The cultivation of osmanthus fish needs to start from the aspects of pond conditions, water depth, food, and water quality.

1. Pond conditions

The pond area is generally 2-4 acres, the water depth is about 2 meters, mainly rectangular, the water quality is fresh, the bottom mud is little or nothing, and the drainage and irrigation aeration equipment is complete.

2. Water depth. It is also necessary to pay special attention to the depth of the water, as the fish like to inhabit the water. Therefore, the water in the breeding pond should not be particularly shallow, generally speaking, it must be at least a meter deep.

In winter, the depth of the water can also be appropriately increased, which is more conducive to the winter.

3. Food. Farmed cinnamon fish need to prepare enough food for them so that their development will be good. Guiyu is a carnivorous fish, and some small fish are their favorite food.

Fish such as crucian carp are often used as feed for osmanthus fish, and this kind of feed fish can be cultivated at the same time as the osmanthus fish is raised, and sufficient feed can be provided for the osmanthus fish.

4. Water quality. The water quality of the farmed osmanthus fish is also very important, the water quality is too dirty, which will seriously affect the growth of the osmanthus fish, and may also cause them to get sick. In order to ensure the quality of the water, the water needs to be changed regularly.

In general, it should be changed once a week to keep the water transparent at more than 40 cm.

The habits of the osmanthus fish

Guiyu is a completely freshwater fish, like to inhabit rivers, lakes, reservoirs and other aquatic plants lush and clean water bodies, generally lurking at the bottom of the water during the day, and moving around at night to feed. I don't like to wander and migrate long distances, and I don't like to live in groups. The suitable water temperature for raw silver skin is 15 32.

However, some scholars have shown that in the range of 10 25, the specific growth rate of Guiyu increases with the increase of temperature, but there is no significant change between 25 and 35.

When the water temperature reaches 35, the growth of Guiyu fish is not significantly slowed down, which is related to the general research results of fish and water temperature, that is, in a certain temperature range, the feeding rate and growth rate of fish increase with the increase of water temperature, when the water temperature exceeds the optimal water temperature, the feeding rate and growth rate of fish will decrease inconsistently, which indicates that the optimal growth temperature of Guiyu fish may be wider.

Guiyu is a carnivorous fish, fierce and feeds on fish and other aquatic animals all its life, eats other fry at the juvenile stage, and mainly preys on small fish such as trout and fish, such as fish and shrimp at 200 mm, and also eats tadpoles and small frogs; When it is above 250 mm, it mainly feeds on carp, crucian carp and other fish. Feeding stops in winter, and hunts at night in spring, summer and autumn.

1. Habits.

Mandarin fish is a typical carnivorous fish, and when artificially fed, it can be fed dead fish, dead shrimp, etc. The male fish matures at the third instar and the female matures at the fourth instar, and its growth rate is relatively fast, up to 50 100 grams in the current year, about kilograms in the second year, and 1 kg in the third year.

2. Pond conditions.

The pond for mandarin fish adult fish breeding should be 3 8 acres, the water depth should be more than 1 meter, the water depth should be about 1 meter in summer, the bottom quality is best sandy loam, less humus, sufficient water source, fresh water quality, and better flowing water. It is required that the dissolved oxygen content of the pool water is more than 5mg l, the pH value is 7 8, and the transparency is more than 30 cm.

3. Cultivation of bait fish molds.

The area of forage fish culture is 3 to 4 times that of mandarin fish ponds. From the perspective of palatability and economy of mandarin fish, baige fish are generally selected as silver carp, crucian carp and other species, and the stocking density is 30.5 million fry per mu. After the fry are stocked, they do not need to be fed immediately, and when the number of zooplankton decreases and the fry are foraging around the pond, they are fed with soy milk or other feed.

In the early stage of rearing, the feed should be added when it is exhausted, and in the later stage, the size of the forage fish should be controlled, and the length of the forage fish should be controlled between 1 2 and 1 3 of the body length of the mandarin fish.

Mandarin fish fingerlings are generally stocked with 8 10 cm, and forage fish should be controlled at 3 4 cm.

4. Stocking of mandarin fish fingerlings.

When raising mandarin fish alone, 800 1000 mandarin fish fingerlings with a size of 8 10 cm can be placed per mu. It is also possible to mix some fast-reproducing fish in mandarin fish ponds as live feed. Generally, 200 400 pairs of tilapia broodstock or 60 two-winter-old crucian carp are stocked per mu.

Use a thin net to divide the fish pond in half and raise mandarin fish on one side.

Fish, while raising other fish, so that the breeding juveniles pass through the thin nets to become mandarin fish feed, and at the same time, the activity of mandarin fish does not hinder the quiet reproduction of other fish.

5. Feeding management.

1) bait: the method of spacing bait fish, in the early and late stage of breeding, every 7 10 days to feed, the middle of every 5 days or so to feed once, should maintain the number of mandarin fish and bait fish ratio of 1:5 10, Dan Chong sedan bait fish too little, will affect the feeding and growth of mandarin fish, too much is easy to cause hypoxia floating head, is not conducive to the growth of mandarin fish.

2) Water quality management:

It is necessary to add new water frequently, especially in June and September, and add new water every 5 or 7 days, 15 20 cm each time, so that the pool water remains fat, lively, refreshing and tender, and promotes the healthy growth of mandarin fish. Submerged plants such as bitter grass and black algae can be planted around the pond to provide a hiding place for fish and at the same time play a role in purifying water quality. Sprinkle quicklime water every 15 20 days for 15 20 kg each time.

Open the aerator in a timely and reasonable manner to increase the amount of dissolved oxygen in the pool water and prevent the fish from hypoxia, and at the same time, some aerators should be prepared, which can be used for rescue when the fish is hypoxic floating head.