How do you choose the breeding time? How to control the stocking density?
The breeding time of the species can be used either before hibernation at the end of the year or after the start of spring eels in the spring. Whenever stocking, seedlings should be in the 2% -3% saline bath 10 minutes, and completely remove the injured, sick jaundice. Artificially cultivated Astragalus membranaceus, the stocking densities of stocking mainly depend on the source of feed and management level. If it is better to stock 50 g of large-scale seed pods, the survival rate is high, the weight gain is fast, and the yield is high. Stocking stockings generally choose about 40 per kilogram of appropriate, 1 m 2 water stocking 25 grams of pups 100 to 150 pigs, that is, 1 m 2 release of young panda 2.5 kg - 4 kg. If the management level is high, the feeding conditions are good and the feed is sufficient. The 1 m2 can be increased to about 200 (5 kg).
How to do the cultivation and domestication of Astragalus?
Astragalus has a strong selectivity for bait and it is very difficult to change the bait after long-term feeding of a bait. Usually do not feed 2 days after stocking - 3 days, after feeding the mixed bait mixed with earthworms, and gradually reduce the ingredients in the breeding process, until after the habit of feeding the mixed feed. If conditions are cultivated, ensuring long-term feeding will be more conducive to the growth and development of Astragalus.
How to prevent seedlings from escaping?
Cultivating young cubs should be strengthened and observed. Astragalus is an extremely easy-to-escape fish, so special attention must be paid to avoiding it. In the general spring and winter season, when the weather is often sunny, the jaundice does not flee, but when the summer and autumn seasons rise and the water rises, as long as the pool wall has a small hole in the finger thickness or the water inlet and outlet are not blocked, the jaundice will flee, and Escape from the heights of Dianchi, and it is most likely to escape at night. Therefore, in the rainy days, it should be noted whether the overflow is unobstructed and whether the barrages are strong enough to prevent the escape of the carp. Also prevent ducks from entering the water and eating young ones.
What issues should be paid attention to when stocking seedlings?
During the stocking period, seedlings are suitable for early spring, early stocking, long growth period and high yield. Huang Xie has a habit of eating small foods. The stocking seedlings must be of the same size and should not be mixed in size, so as to avoid killing and consuming each other. The stocking specifications are suitable for 15 to 20 tails per 500 grams, and 1 to 2 meters for stocking 1500 to 2500 grams of seedlings. Artificial intensive culture, stocking density can be appropriately larger, 1 m 2 stocking weight of 25 grams of pups 100 -150, that is, 1 m 2 larvae weighing 2500 grams -4000 grams. For stocking seedlings with large specifications, the density can be reduced accordingly. For stocking seedlings with small specifications, the density can be increased accordingly. There are plenty of food and you can stock some more. The food is not enough, but it can be used less properly. If the temperature difference is too large, the temperature of the water should be adjusted so that the temperature is close to the temperature of the pool and then the pool. If the seedlings are brought back from the field, they should immediately go to the pool. The seedlings should be placed under the water and gently poured into the pool.
Seedlings in the lower pool should be counted, and the cupping method is generally more convenient. That is, the seedlings are first placed in a small seedling box. One person raises the side corner of the box and leaves the water slightly, so that the seedlings are concentrated at the other end of the box, and the other uses a small rake to pick up the seedlings. Calculate the number of seedlings for a cup, then use the method to quickly and steadily use the cup to take the total number of seedlings needed in the pot.
After the seedlings enter the pond, the water hyacinth can be stocked in the pond. The well-developed roots of water hyacinths can create a good environment for the young seedlings to inhabit, drill and empty, and accelerate seedling growth.
In addition, the pool can not be properly matched with raising some loach, so that the remaining food residue can be eaten and used by the astragalus, and the purpose of cleaning the water can be achieved. The amount of muddy stocking can account for 1/10 of that of the yellow peony.
The growth rate of seedlings, under the premise of guaranteeing sufficient supply of feed, the growth rate of seedlings is very fast. The newly hatched seedlings are 12 mm to 20 mm in length. Seedlings 4 days to 5 days after hatching mainly ingest water fleas, rotifers, small leeches, fresh fish paste and algae, etc., with leeches and water.蚤 is the best. On the 15th day, the body length is 27 mm - 30 mm. After 1 month of feeding, seedlings can grow to 51 mm - 53 mm. By mid-November, seedlings have grown to 150 mm - 240 mm. As the temperature decreases, the small squid drills into the hole under the mud to overwinter and stop growing.
How to properly manage the wintering of young cubs?
In November, the seedlings that grow up will drill into the cave under the mud and overwinter as the temperature decreases. At this time, the overwintering management of the young cubs should be done well. The pool water can be drained. In order to keep the pool mud wet and the temperature, it can be covered with straw or turf which is 10 cm to 20 cm thick. Keep the pool temperature above 0°C to avoid frostbite of the yellow peony, and prevent the heavy material from pressing down the pores of the burrow to ensure safe wintering of the yellow peony. If there are other heat sources in the vicinity, they can also be used. This will enable the carp not to sleep during the winter and extend the growth period, which is conducive to growth. Usually, seedlings of different specifications should be divided and maintained at any time to prevent self-inflicted eating.
How to choose a pro?
In order to select a large number of eggs to be laid, the fertilization rate, the rate of emergence, and the good quality of seedlings must be selected as a progeny with a certain age, weight, physical fitness, no serious disease and trauma. In the non-breeding season, the male and female cubs are difficult to identify in appearance, and are generally selected for length. The most common females are females of 20-35 cm body length and most of them are males when their body length is more than 45 cm. Under normal circumstances can be selected according to the above two body length group 3:1.
How to nurture your loved ones?
The cultivation method of intimacy is basically the same as that of aquaculture. The difference is that the husbandry and management should be more careful, and the clear pond should be thoroughly used. The stocking density is slightly lower than that of the farmed salmon. The best is 1.0 kg to 1.5 kg per square meter. The difference between males and females when stocking is not too great to prevent mutual food. Intimate ponds are best fed with high-quality live bait such as alfalfa, and put some aquatic plants such as water hyacinth or put some straw in the water. The area is about 1/10 of the total area of ​​the water body. The pool is often filled with fresh water, and the water depth is controlled between 10 cm and 20 cm.
The breeding time of the species can be used either before hibernation at the end of the year or after the start of spring eels in the spring. Whenever stocking, seedlings should be in the 2% -3% saline bath 10 minutes, and completely remove the injured, sick jaundice. Artificially cultivated Astragalus membranaceus, the stocking densities of stocking mainly depend on the source of feed and management level. If it is better to stock 50 g of large-scale seed pods, the survival rate is high, the weight gain is fast, and the yield is high. Stocking stockings generally choose about 40 per kilogram of appropriate, 1 m 2 water stocking 25 grams of pups 100 to 150 pigs, that is, 1 m 2 release of young panda 2.5 kg - 4 kg. If the management level is high, the feeding conditions are good and the feed is sufficient. The 1 m2 can be increased to about 200 (5 kg).
How to do the cultivation and domestication of Astragalus?
Astragalus has a strong selectivity for bait and it is very difficult to change the bait after long-term feeding of a bait. Usually do not feed 2 days after stocking - 3 days, after feeding the mixed bait mixed with earthworms, and gradually reduce the ingredients in the breeding process, until after the habit of feeding the mixed feed. If conditions are cultivated, ensuring long-term feeding will be more conducive to the growth and development of Astragalus.
How to prevent seedlings from escaping?
Cultivating young cubs should be strengthened and observed. Astragalus is an extremely easy-to-escape fish, so special attention must be paid to avoiding it. In the general spring and winter season, when the weather is often sunny, the jaundice does not flee, but when the summer and autumn seasons rise and the water rises, as long as the pool wall has a small hole in the finger thickness or the water inlet and outlet are not blocked, the jaundice will flee, and Escape from the heights of Dianchi, and it is most likely to escape at night. Therefore, in the rainy days, it should be noted whether the overflow is unobstructed and whether the barrages are strong enough to prevent the escape of the carp. Also prevent ducks from entering the water and eating young ones.
What issues should be paid attention to when stocking seedlings?
During the stocking period, seedlings are suitable for early spring, early stocking, long growth period and high yield. Huang Xie has a habit of eating small foods. The stocking seedlings must be of the same size and should not be mixed in size, so as to avoid killing and consuming each other. The stocking specifications are suitable for 15 to 20 tails per 500 grams, and 1 to 2 meters for stocking 1500 to 2500 grams of seedlings. Artificial intensive culture, stocking density can be appropriately larger, 1 m 2 stocking weight of 25 grams of pups 100 -150, that is, 1 m 2 larvae weighing 2500 grams -4000 grams. For stocking seedlings with large specifications, the density can be reduced accordingly. For stocking seedlings with small specifications, the density can be increased accordingly. There are plenty of food and you can stock some more. The food is not enough, but it can be used less properly. If the temperature difference is too large, the temperature of the water should be adjusted so that the temperature is close to the temperature of the pool and then the pool. If the seedlings are brought back from the field, they should immediately go to the pool. The seedlings should be placed under the water and gently poured into the pool.
Seedlings in the lower pool should be counted, and the cupping method is generally more convenient. That is, the seedlings are first placed in a small seedling box. One person raises the side corner of the box and leaves the water slightly, so that the seedlings are concentrated at the other end of the box, and the other uses a small rake to pick up the seedlings. Calculate the number of seedlings for a cup, then use the method to quickly and steadily use the cup to take the total number of seedlings needed in the pot.
After the seedlings enter the pond, the water hyacinth can be stocked in the pond. The well-developed roots of water hyacinths can create a good environment for the young seedlings to inhabit, drill and empty, and accelerate seedling growth.
In addition, the pool can not be properly matched with raising some loach, so that the remaining food residue can be eaten and used by the astragalus, and the purpose of cleaning the water can be achieved. The amount of muddy stocking can account for 1/10 of that of the yellow peony.
The growth rate of seedlings, under the premise of guaranteeing sufficient supply of feed, the growth rate of seedlings is very fast. The newly hatched seedlings are 12 mm to 20 mm in length. Seedlings 4 days to 5 days after hatching mainly ingest water fleas, rotifers, small leeches, fresh fish paste and algae, etc., with leeches and water.蚤 is the best. On the 15th day, the body length is 27 mm - 30 mm. After 1 month of feeding, seedlings can grow to 51 mm - 53 mm. By mid-November, seedlings have grown to 150 mm - 240 mm. As the temperature decreases, the small squid drills into the hole under the mud to overwinter and stop growing.
How to properly manage the wintering of young cubs?
In November, the seedlings that grow up will drill into the cave under the mud and overwinter as the temperature decreases. At this time, the overwintering management of the young cubs should be done well. The pool water can be drained. In order to keep the pool mud wet and the temperature, it can be covered with straw or turf which is 10 cm to 20 cm thick. Keep the pool temperature above 0°C to avoid frostbite of the yellow peony, and prevent the heavy material from pressing down the pores of the burrow to ensure safe wintering of the yellow peony. If there are other heat sources in the vicinity, they can also be used. This will enable the carp not to sleep during the winter and extend the growth period, which is conducive to growth. Usually, seedlings of different specifications should be divided and maintained at any time to prevent self-inflicted eating.
How to choose a pro?
In order to select a large number of eggs to be laid, the fertilization rate, the rate of emergence, and the good quality of seedlings must be selected as a progeny with a certain age, weight, physical fitness, no serious disease and trauma. In the non-breeding season, the male and female cubs are difficult to identify in appearance, and are generally selected for length. The most common females are females of 20-35 cm body length and most of them are males when their body length is more than 45 cm. Under normal circumstances can be selected according to the above two body length group 3:1.
How to nurture your loved ones?
The cultivation method of intimacy is basically the same as that of aquaculture. The difference is that the husbandry and management should be more careful, and the clear pond should be thoroughly used. The stocking density is slightly lower than that of the farmed salmon. The best is 1.0 kg to 1.5 kg per square meter. The difference between males and females when stocking is not too great to prevent mutual food. Intimate ponds are best fed with high-quality live bait such as alfalfa, and put some aquatic plants such as water hyacinth or put some straw in the water. The area is about 1/10 of the total area of ​​the water body. The pool is often filled with fresh water, and the water depth is controlled between 10 cm and 20 cm.
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