I. Living habits and characteristics of Huang Xi Huang Xie’s fierce temperament, likes meat, often feeds on small fish, shrimp, snails, aquatic insects and zooplankton, and also eats organic debris. In the case of food shortage, the phenomenon of killing each Other between jaundice is extremely serious. The yellow pheasant is usually sexually mature from 2 to 3 years of age, and most of the reproductive season is from June to August every year. Spawning takes place near the burrowing hole and nests on the water surface. Male and female parents have the habit of protecting eggs. Other Grain Products,Natural Grain,Grain Dryer SHIJIAZHUANG SYNMEC INTERNATIONAL TRADING LIMITED , https://www.seedgraincleaner.com
Astragalus prefers to burrow in muddy bottoms or in the pores of embankments. It grows in ponds, ditches, rice fields, and organic bottom silt. The suitable temperature is 15°C to 30°C. When the water temperature drops below 10°C, it gradually stops feeding into hibernation. Huang Xie often hides in the cave during the day and eats food at night or in the morning.
Astragalus has characteristics of sexual transfer. From embryonic development to sexual maturity, all of them are females. There are only ovaries in the internal gonads. Females are less than 15cm in length. In 20cm-40cm, some individuals appear to be sexually displaced. Females and males are almost equal. Above 50cm, The internal gonads of the jaundice are all testes and all become male.
Second, Huang Hao's pool operation technology
1, Huang Yuchi's selection and construction
According to the experience of farmers in my area, raising fish ponds generally require the selection of sheltered lands near the homes near the water to the sun. It is best to use soils with a lot of organic matter, softness, hardness, and firmness. Dianchi Lake is a round, square, area of ​​50m2 or less, depending on the specific circumstances, in short, the smaller the pool is, the more convenient it is to raise, capture, and manage. The depth of the rearing pond is generally 80cm-1OOcm, and the depth of water is 10cm-20cm. It is advisable for the ape to habitually occupy a hole in the cave. From time to time, the head stretches out of the hole to pry out food or breathe; if the pool is too deep, it is necessary to swim out of the hole to eat and breathe. Outside, all day long is not conducive to growth in the cave.
The Dianchi pond canopy is generally made of stone, piece stone or brick, and is 90cm-120cm in height (should be 10cm to 20cm above the ground). The water surface of the pond is 30cm-50cm in height, and the top of the pool can be made into a "T" shape by bricks. Avoid jaundice climbing the wall or use the tail to catch the embankment to escape. The inner wall of the embankment is lighted with triplet ash or cement mortar, and each entrance and outlet port is opened at the opposite corner of the side wall and sealed and prevented from being escaped by the screen or polyethylene net. After the breeding pond is built, it must first be cleaned and cleaned, and then 20cm to 30cm of padding should be filled with loam, and aquatic plants such as shitake mushrooms and water cabbages should be planted properly in the pond, or stones and sticks should be placed. Prepare a yellow hole for habitat, feeding and shade.
2, the choice of species and stocking
Choosing a physique that is robust, regular in size, and free from disease and injury is the key to improving the effectiveness of raising fleas. For this reason, it is generally best to choose the seedlings of the artificial breeding ground and the wild trout caught or caught by hand; the specification requires 40 to 60 tails per kg. The breeding stock in the same pool must be the seed of the same batch and the same specifications, and prevent individual differences to cause killing each other and reduce the survival rate. The stocking stocking density should be determined according to the feeding management level. Generally, 2 kg-3 kg seedlings are stocked per square meter. Before the next pool with 1% -2% saline bath sterilization 10min-15min.
3, feeding and management
(1) Feeding of bait: Astragalus is a carnivorous fish, prefers to eat live food and is bulimia. Under natural conditions, they often hunt small fish, shrimps, river otters, benthic animals, etc., and also eat some large zooplankton. Therefore, the artificial feeding of jaundice should be gradually fed with leeches, fly maggots, snails, small trash fish or fresh silkworm pupa and chopped livestock and poultry viscera, etc., and can also be fed with cakes, powdered bran, powdered slag or it. With materials, etc., baits require fresh, non-toxic, and palatable. The principle of feeding requires “four determinationsâ€. Generally, the daily feeding amount is kept at 2%-5% of the body weight of jaundice. The best time for feeding is after the evening, and the feeding time is fixed in the food or food basket to check the feeding. The situation and the timely removal of the residue, from April to October is the fastest growing and most invigorating season for Astragalus, to ensure adequate feed.
(2) Daily management: The management of Dianchi Lake is relatively convenient, and the requirement for water is not high. When the pool water is lean, a bit of decomposed human and animal manure can be properly piled in the pool; but in the summer and autumn high temperature season, the food is perishable and causes deterioration of water quality. Therefore, it is necessary to constantly change the pool water. When the direct sunlight intensity is high, it is also necessary to construct shade. If a thunderstorm is the time when the yellow eel is easy to escape, it must be drained in time to maintain the desired depth, and check and intercept the anti-escape facilities at any time to avoid the eel's escape.
4, disease prevention
The common diseases of jaundice include colds, white spot disease, and red spot disease. The method of prevention is: the temperature difference between adding water and changing water should not be too large; in the meantime, it is necessary to remove the diseased worms and residual larvae in time to avoid bad water quality; it is also possible to stock several quails in the pond to prevent diseases.
5, the capture of Huang Qi
There are many ways to catch jaundice. The easiest way is to use a squat cage to trap, that is, to place a cricket cage every evening, put the bait in a cage, and catch the cage the next morning. The high temperature season can be harvested twice a night. It is also possible to dry the pool water in the cold season, turn it over to catch the earth, take a large stay and keep the pond in reserve. During the winter season, we must keep the soil moist, cover the straw or close the deep water for winter.