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What to put sea cucumber seedlings.
How to choose a good seedling?
Hand picking seedlings (1) It is recommended to choose no steel wire grass; (2) Catch seedlings in ponds that have not killed grass, fish, or insects recently; (3) Try to choose local seedlings, the water environment is similar, the transportation distance is short, such as the selection of foreign seedlings need to pay attention to salinity, temperature differences; (4) Choose sea cucumber with firm spines, normal color, and coarse feces without defecation.
2. Shed seedlings. Try to choose local nurseries to reduce the damage caused by stress caused by long transportation time and large differences in water quality and temperature.
2) It is recommended to choose a seedling pond with no glass sea squirt or less.
3) When looking at the seedlings, the seedlings in the seedling pond are evenly distributed, stretched, the flesh thorns are firm, the intestines are full, the feces are normal and the body color is bright; In addition, we should also pay attention to the smell in the workshop and the bubbles on the water surface, if the bubbles are large and numerous, not easy to disperse, and the water quality is sticky, it means that there may be problems with the digestion of ginseng seedlings, or there is enteritis, and appropriate attention should be paid to; Try to choose seedlings with little or no antibiotics.
Key points in the seedling release stage.
1. Take a small number of seedlings first, count them and put them into a net bag and put them in the pond for temporary maintenance. Two days later, the mesh bag was presented to test the survival rate, status and vitality of the seedlings. If the survival rate is not high, the water quality indicators and substrate conditions such as dissolved oxygen, ammonia nitrogen, and pH value of the water body should be analyzed, and the seedlings should be tested after the treatment is completed; If the survival rate is high and the sea cucumber vitality is good, it indicates that the seedling test is successful, and the seedling can be officially released at the right time after the seedling test is successful.
2. Seedling time: the temperature difference between the pond and the pond is 2, and the water temperature of the pond is recommended to be about 16 and the seedling room is appropriate. And the climate is stable, and there are no major weather fluctuations for a period of time.
3. Selection of seedling placement: Seedling placement should be selected in the middle of the pond as much as possible, avoiding the inlet and drainage.
4. The grasp of the seedling method: the small seedlings can be put directly into the reef with the help of net bags and other methods, and the large seedlings (within 100 heads) can be directly scattered on the reef and its surroundings.
5. On the day of seedling release, the whole pool is splashed with "activation", which can effectively improve the adaptability of ginseng seedlings and the survival rate of ginseng seedlings.
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Where are you? It depends on the climate and environment.
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Hello dear, yes, the sea cucumber circle can be directly exposed to the sun after a winter, and there is no need to hibernate. There are usually two methods for putting sea cucumber seedlings, one is the direct delivery method, that is, the ginseng seedlings are directly put into the stone piles or stone ridges and other attachments in the sea cucumber storage pond, which is suitable for large individual ginseng seedlings with a body length of more than three centimeters. The second is the net bag delivery method, which is to put the ginseng seedlings into the 20 mesh bags, and the net bags also need to be tied with small stones, which are dismantled to prevent the net bags from floating or moving, and the mouth of the net bags should be slightly pierced and half open, so that the sea cucumbers can climb out of the net bags by themselves, and this method is more suitable for small ginseng seedlings with a body length of one to two centimeters.
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