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1. Sea cucumbers are black and hard.
One reason is that the yield density of sea cucumber seedlings is increasing at this stage, the amount of bait is also increasing, the dissolved oxygen in the pool is seriously insufficient, and the sea cucumber is in a state of hypoxia, and the more bait, the worse the state. It is mainly solved from two aspects, 1. Increase the aeration capacity, increase the oxygen head, and increase the oxygen pump, and after seven days of pouring the pool, use the "oxygen speed guarantee" every day to adjust water and increase oxygen. 2 Appropriately reduce the amount of feeding, many friends have been anxious for the low yield recently, and they have worked hard to feed, which has backfired.
Another reason why sea cucumber seedlings are black and hard is: excessive medicated baths! Medicated baths have always been a habit of sea cucumber seedling breeding friends, excessive medicated baths sea cucumbers are easy to be poisoned by antibiotics, affecting the state and ingestion.
Treatment method: Change the water in the medicated bath, and use "Bishui'an" + "Life Element" to detoxify and detoxify the residue after the water change.
2. Shaking the head, rolling, and rotten eyes.
This is also a problem with a high incidence in the month, and the direct cause is that ciliates parasitize on the body surface and even the intestines of sea cucumbers, and breathe trees. But have you ever considered why there are more parasitic ciliates at this stage? The main reason is that in addition to the temperature suitable for ciliate breeding at this stage, there is also a key reason, the intestinal digestion and absorption rate of sea cucumber decreases, the amount of bait in Changcao at this stage is very large, the feeding of sea cucumber seedlings decreases slightly, and the leftover material increases to provide sufficient nutrition for ciliate breeding.
Treatment method: Add "Liguan" + "Liduojing" to the feed to improve the utilization rate of bait. Once ciliate parasitism is found, the appropriate use of "Sanhuangsan" to promote the elimination of ciliates from the body, insecticides can also be used to kill insects, and later use "life elements" to improve the physique of sea cucumbers and improve insect resistance.
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The input cost of the sea cucumber nursery room varies depending on the specific situation.
For example, the cost of a sea cucumber nursery includes the following:
1.Cost of purchasing ginseng seedlings: yuan.
2.Cost of buying bait: RMB.
3.Bait processing cost: yuan.
4.Utilities: RMB.
5.Death loss expense: RMB.
6.Tool material cost: RMB.
7.Depreciation expense of fixed assets: RMB.
8.Management expenses of sea cucumber breeding technicians: yuan.
Based on these costs, the total cost is RMB.
Please note that this is only an example of a cost estimate, and actual input costs may vary based on various factors.
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1. The cost of purchasing ginseng seedlings is 120 catties per mu.
2. The cost of buying bait is 760 catties.
3. Bait processing costs.
4. Water and electricity costs.
5. Death loss costs.
6. The cost of tools and materials.
7. Depreciation of fixed assets.
8. The management cost of sea cucumber breeding technicians is 50 yuan.
9. Land lease costs.
10. The total cost is RMB.
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