Healthy shrimps are picked out with scooping nets and loaded in water scoops. They will soon scoop up on the scoops; if you see a lot of fry swiftly, you will have poor adaptability to the new environment, instead of shrimps. The vitality is good.
Understand the provenance of seedlings and the use of seedlings. At present, there are a generation of seedlings, second generation seedlings, and soil seedlings in shrimp seedlings, which have large differences in their adaptability, growth rate, and price. With the same generation of seedlings, different breeding methods, different provenances, and breeding effects are different. When purchasing seedlings, it is necessary to understand in detail to avoid losses. At the same time, understanding the situation of feeding and using drugs during the breeding process, such as less use of biological baits means that the constitution is poor, antibiotics and disinfectants are often used for poor disease resistance and slow growth.
Visually judge the quality of shrimp. Healthy shrimp seedlings are complete, smooth, full and transparent muscles, normal pigments in appendages, gastrointestinal full of food, sensitive to external stimuli, strong anti-migration ability, no external parasites and attached dirt, body length 0.7 cm to 1 cm about. In particular, observe the head seedlings and tail seedlings.
Liver: To judge the quality of shrimp, first observe the liver of the shrimp. The first observation is whether the color of liver in the entire pond is the same. If there are more than two colors of red and black, it means that the liver of the shrimp is not good (not counting the first three days of the shrimp); the second observation of the liver color of the smallest seedling, if No redness indicates that there is no disease in the liver and it is a good seedling.
Intestines: 0.8 cm to 1.0 cm The gut of the shrimp is preferably thick and dark (the intestine is clear and passes through to the end). There is a lot of manure in the water, which means that the appetite of the shrimp is very good. If shrimps (especially larger heads) have jejunum empty stomach (stomach has food but no feces in the intestine is observed) or even individual jejunum has empty stomach and stomach, there are some mop phenomenon, and the feces formed in the water Not much, this shows that shrimp has been diarrhea, this kind of seedlings is poor, when the weather, water quality changes, fluctuations are prone to disease.
Vitality: Vitality is also an important criterion for judging the quality of shrimp. If it is a healthy and healthy shrimp, it will be picked out in a scoop with a dip net, and soon it will scoop on the scoop wall (the shrimp can not be too much in the scoop). There is basically no seedling swimming in the water. If we see that many shrimp seedlings are not grasshoppers, but are constantly swimming, this shrimp seedling has already undergone a stress response, indicating that it is less capable of adapting to the new environment. (Most people think that this kind of shrimp seedlings have good vigor, In fact, it is not that the shrimps are stressed when they are scared and stressed. The seedlings sink slowly when they are put into shrimp ponds, and some of them drift on the surface of the water or swim ponds. After the water in the scoop is turned by hand to form a water circulation, the vigor of the shrimp is gathered in the middle, and it will immediately bounce off. It is a neat and regular pattern on the wall of the scoop. This kind of shrimp is relatively good in vigor; if there are a lot of shrimp seedlings drifting or gathering in the middle, it is not good.
Seedlings with different vitality in Miaochi will also be in different locations. When seeing the seedlings, there is a big relationship from where to fish seedlings. In general, the seedlings on the pool walls are the best, followed by the bottom of the pool, while the shrimps with aeration in the aeration range are relatively weak. If you want to really observe whether the seedlings in a pond are good or not, sampling is best done in the aerating area, because the oxygen in the place is high and the water flow is high, but the weaker seedlings need high oxygen and follow the flow and gather there. Nearby, so the shrimps observed there are the weakest, if the shrimps are good in all aspects, then the shrimps are good.
Bubble: When you look at the seedlings, you can pay attention to the foam on the water in the pool. If the white transparent foam is more, the quality of this kind of shrimp is relatively good, because the water quality is refreshing and there is no appetite for the residual bait shrimp. If the bubble is red, it depends on how many dirty stains are stuck on the pool wall. If there is more, it may be overfeeding or excessive levels of harmful substances in the water or poor appetite in shrimps. There is no smell, if any, shrimp may be chronic poisoning (liver swelling, jejunum, empty stomach).
White seedlings in water: The so-called white seedlings are dead seedlings. If you can see the dead seedlings by scooping some seedlings, it is better not to keep the seedlings. Generally, if there are dead seedlings, it is certainly a problem in the incidence or feeding and management. For example, excessive feeding causes excessive organic matter or ammonia poisoning and chronic poisoning.
Simply put the seedling's "Four Don'ts": The head seedlings do not have the soft body, the wild swim, the liver, and the liver.
Curcumin is a yellow pigment extracted from the rhizomes of turmeric and other plants of the ginger family. It is an acidic polyphenolic substance with unsaturated aliphatic and aromatic groups in the main chain. It is commonly used as a meat coloring agent and acid-base indicator, and also has pharmacological effects such as anti-inflammatory and antioxidant.
Curcumin powder,Curcumin 95%,Turmeric root Extract.
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