At present, artificial eel breeding mainly purchases wild eel from the market. If you want to succeed, you must pass through the screening. It is necessary to rigorously select the species to be purchased from the market. It is advisable to purchase from the harvester the species that have been caught in cages and raised for no more than 2 days, while the hooks, electric shocks, and clips are generally not suitable. Species, but can also be artificially cultivated by careful screening and processing.
(1) The species selection of earthworms is in the natural population of earthworms. The most suitable for professional breeding is the deep yellow and large yellow spotted turtles, and the blue and grey earthworms are only suitable for the comprehensive utilization of the fish in rural households. Breeding varieties. There are also light white dragonflies, light black dragonflies and so on. The number of such dragonflies is not large and growth is unpleasant and should not be used to develop aquaculture.
(2) The specifications for screening the species must be selected in the order of neatness, robustness, bright color, no injury, disease, and lively breeding. It is best to choose the local quail species breeding and get enough of it once. The selection of small species is more cost-effective, generally 15 to 20 grams per tail. As the time is delayed, the seedlings to be raised must also be increased. Only in that year can higher aquaculture benefits be achieved.
(3) Screening of alfalfa by system selection method The above selection of alfalfa varieties and specifications objectively reflects the quality of alfalfa, and there are still many uncertain factors in the actual breeding, such as storage, transportation and injury. Therefore, we must go through the following 1 or 2 methods for screening.
1. Sensory Screening: Screening based on your own feelings and experience. The species is healthy and active. You can pick up your hands and you can look up and struggle. Observe whether there is mucous membrane shedding and abnormal spots, if the body is distorted, red spots, anal redness, and the tail is twisted with inferior quality, good quality tendons generally move freely under the pool. The quality of the water in the pool was observed as good quality.
2. Water flow screening method: é³ likes to reverse the water line, and uses appropriate force to spirally stir the inner water of the Dianchi Lake in a certain direction. The worm moves in the opposite direction (top water). It is a normal phenomenon; if it follows the water, it is unable to swim. Poor quality.
3. Tapping screening method: For the characteristics of the wild amphibians that are rarely disturbed, the shallow bowls are used to dress the crickets. When the quality is good, the pelicans are used to jump outward. However, crickets that are injured and suffering from parasites also jump outwards, so we must carefully identify them.
4. Behavioral Screening: Screening based on the clustering of cockroaches. From the shallow water without pool observation, good quality quail groups drilled to the top of the four corners, walking alone vibram five fingers poor vitality for poor quality. In order to have space for observation, the density should be less than 5 kg/m2.
5. Drilling or drilling hole screening method: Put the earthworms into the pond for about 2 hours. Those who do not drill holes and do not drill are of poor quality. Some drill bits are not drilled or drilled out for a while. However, some parts with poor quality can also drill holes.
6. Feeding screening method: The quail is fed with 2% of the total weight of the compound feed or 3% of Tenebrio or 5% of quail. When the temperature is greater than 20°C, it is good to eat more than half of the feed within 2 hours. The group of people.
7. Drug Immersion Screening: When the drug is soaked, effective concentration, time, and temperature must be known. The preferred saline method is salt water, which is irritating, so be careful when choosing. This method acts as a disinfectant at the same time, but it can speed up the death of the inferior cricket. During the screening, do not put all the quail in the salt water. Use a sampling method to filter. First pick up the wolfberry by hand and place the wolfberry in salt water. The concentration is: 1% to 2% of the small medlar, 3% of the oyster, soaking 5 to 10 minutes. During the soaking process, the good-quality phlegm becomes restless and quiet, or has regular movement; while the poor quality phlegm, as the salt water stimulates the wound, etc., the sickness madness jumps and the tail twists and turns to be ridiculous. After the fish pond is put into the pond, it is good to enter the fish nest. Secondly, soaking for 5 to 10 minutes with 8x1O-6 (negative 6th power of 10) sulphate ketone can make the mucous membrane on the inferior corpse fall off.
The fleas selected by the above methods can greatly increase their survival rate and yield. Of course, it is also important to master the living habits, the construction of Dianchi Lake, the daily management, the prevention of plant diseases and insect pests, the prevention of heatstroke and over-wintering, and ecological farming, which are important technical measures for the success of breeding.
(1) The species selection of earthworms is in the natural population of earthworms. The most suitable for professional breeding is the deep yellow and large yellow spotted turtles, and the blue and grey earthworms are only suitable for the comprehensive utilization of the fish in rural households. Breeding varieties. There are also light white dragonflies, light black dragonflies and so on. The number of such dragonflies is not large and growth is unpleasant and should not be used to develop aquaculture.
(2) The specifications for screening the species must be selected in the order of neatness, robustness, bright color, no injury, disease, and lively breeding. It is best to choose the local quail species breeding and get enough of it once. The selection of small species is more cost-effective, generally 15 to 20 grams per tail. As the time is delayed, the seedlings to be raised must also be increased. Only in that year can higher aquaculture benefits be achieved.
(3) Screening of alfalfa by system selection method The above selection of alfalfa varieties and specifications objectively reflects the quality of alfalfa, and there are still many uncertain factors in the actual breeding, such as storage, transportation and injury. Therefore, we must go through the following 1 or 2 methods for screening.
1. Sensory Screening: Screening based on your own feelings and experience. The species is healthy and active. You can pick up your hands and you can look up and struggle. Observe whether there is mucous membrane shedding and abnormal spots, if the body is distorted, red spots, anal redness, and the tail is twisted with inferior quality, good quality tendons generally move freely under the pool. The quality of the water in the pool was observed as good quality.
2. Water flow screening method: é³ likes to reverse the water line, and uses appropriate force to spirally stir the inner water of the Dianchi Lake in a certain direction. The worm moves in the opposite direction (top water). It is a normal phenomenon; if it follows the water, it is unable to swim. Poor quality.
3. Tapping screening method: For the characteristics of the wild amphibians that are rarely disturbed, the shallow bowls are used to dress the crickets. When the quality is good, the pelicans are used to jump outward. However, crickets that are injured and suffering from parasites also jump outwards, so we must carefully identify them.
4. Behavioral Screening: Screening based on the clustering of cockroaches. From the shallow water without pool observation, good quality quail groups drilled to the top of the four corners, walking alone vibram five fingers poor vitality for poor quality. In order to have space for observation, the density should be less than 5 kg/m2.
5. Drilling or drilling hole screening method: Put the earthworms into the pond for about 2 hours. Those who do not drill holes and do not drill are of poor quality. Some drill bits are not drilled or drilled out for a while. However, some parts with poor quality can also drill holes.
6. Feeding screening method: The quail is fed with 2% of the total weight of the compound feed or 3% of Tenebrio or 5% of quail. When the temperature is greater than 20°C, it is good to eat more than half of the feed within 2 hours. The group of people.
7. Drug Immersion Screening: When the drug is soaked, effective concentration, time, and temperature must be known. The preferred saline method is salt water, which is irritating, so be careful when choosing. This method acts as a disinfectant at the same time, but it can speed up the death of the inferior cricket. During the screening, do not put all the quail in the salt water. Use a sampling method to filter. First pick up the wolfberry by hand and place the wolfberry in salt water. The concentration is: 1% to 2% of the small medlar, 3% of the oyster, soaking 5 to 10 minutes. During the soaking process, the good-quality phlegm becomes restless and quiet, or has regular movement; while the poor quality phlegm, as the salt water stimulates the wound, etc., the sickness madness jumps and the tail twists and turns to be ridiculous. After the fish pond is put into the pond, it is good to enter the fish nest. Secondly, soaking for 5 to 10 minutes with 8x1O-6 (negative 6th power of 10) sulphate ketone can make the mucous membrane on the inferior corpse fall off.
The fleas selected by the above methods can greatly increase their survival rate and yield. Of course, it is also important to master the living habits, the construction of Dianchi Lake, the daily management, the prevention of plant diseases and insect pests, the prevention of heatstroke and over-wintering, and ecological farming, which are important technical measures for the success of breeding.
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