cách xử lý khí độc và tảo độc trong nuôi tôm siêu thâm canh- Long Văn Nghĩa- Thủy sản

Connect, share good experiences in aquaculture, bring good models and practices to the people to make progress together and enrich the land of your hometown. Don't forget to subscribe to receive more videos. Dr. Long Giang Nghia, an audience member asked, I discovered that the grass appeared in the breeding area with a thick density. I would like to ask the doctor for advice on how to identify and how to prevent grass from appearing more. Ladies and gentlemen, now in the super deep shrimp farming or in the aquaculture, grass is also a very difficult problem. And almost everyone who raises shrimp has to face this problem. So I ask this question, a question that many people have heard to deal with. In the past, there were many ways to deal with grass. There are many ways to deal with it, but how to deal with it to make it the best, but it does not affect our aquaculture, nor does it affect the quality of water. That's why it's so difficult. So in today's program, I will share with you some real experiences. Up to now, I will share all my experiences, without going through any theoretical books. I will share from my experience. In the current super deep shrimp farming, grass is one of the risks that make it easy for shrimp to develop leukemia. I affirm that. The reason is that there are 4 types of grass that usually appear in the super deep shrimp farm. 1. Dry grass. 2. Green grass. If these two types of grass appear in the super deep shrimp farm, we feel very healthy. Because it's good, it's good for the shrimp. The nutrient content is very high. The second is the grasshopper and the grasshopper. When these two types of grass appear in the super deep shrimp farm, this is a risk that makes us sleepless. The reason is that it develops too fast. And the toxicity is very high. It's very easy for shrimp to develop leukemia. As Mr. Phu said earlier, he tested the water source in the river. He found that it was very high in phosphorus. And phosphorus is one of the special nutrients of grasshoppers. Because it develops very fast. But everything we do, we have to release it. Then it goes around and gets into our pond. So it creates conditions for the grasshopper to develop. So when the grasshopper gets into the pond, it develops too fast. But if we don't interfere, it's like our pond has a problem. The first problem is leukemia. The second is that when it falls, it makes the water environment dirty. Because the toxicity is very high. The grasshopper that falls is even more dangerous than a dirty pond. It means that when a large amount of grasshopper falls, it makes the environment messy. At that time, when the toxicity is high, the grasshopper also develops leukemia. It doesn't mean that during the process of exchanging nutrients, the grasshopper changes. It's all messed up. It makes our pond very difficult. Therefore, when we meet grasshoppers, we don't treat grasshoppers in a thorough way, but at a very fast rate. Then it leaves very serious consequences. But we have to monitor from the beginning. It means that now all the labs are available. Our lab has a water test to determine the degree of leukemia in our pond. You have to know that. I just need to ask the people in the pond, what grasshopper, how many plus, you know right away. Because I have tested once or twice. Mr. Nghia, I just tested for the third time. The lab told me grasshopper 3+, grasshopper 1+, grasshopper 1+, grasshopper 1+, so I feel at ease. But when you test grasshopper 3+, grasshopper 3+, then it's over. It's even worse than that. People estimate 3+, so it's high. But you have to pay attention. What I mean is that when grasshopper 1+, grasshopper 2, appears, we start to treat it right away. Then it will be more effective. Don't leave it until it's normal, when it appears, it will turn black, it will create blood clots in the pond, it will create red spots, it will create blood clots in the pond, then it will be too toxic. It's very dangerous at that time. If you don't handle it in time, the grasshopper will have a problem in a few days. So what am I saying? For you to handle it soon, we have to test the water at least once a week, not twice. It's very easy. Bring the sample back to the agent, test it a little bit, and it's done. So we know how much grass we can grow, we just have to make it stable. For grasshopper 1+, we use hygiene to control it, we use it regularly, to nurture the environment according to the direction we want. In case it's not what we want, it's already 3+, we have to handle it. So how do we handle it? I'll share with you a very simple and effective experience. If the grasshopper, especially the grasshopper, is very afraid of insects, how toxic it is, it has to be afraid of something. It likes this, but it's afraid of that. It likes food, but it's afraid of cars. It's very scared. Especially when it sees a car, it's scared. So be careful, when the grasshopper appears, 3+, or the grasshopper, at 10 o'clock in the evening, listen to me, if the grasshopper is young, 20 kg of CAO and 40 kg of CACO3, at 10 o'clock in the evening, tap it once, run the fan at 11 o'clock, then soak it in water, soak it in water, at 11 o'clock, turn on the air conditioner, one time in the morning, it will decrease by 60% immediately. Very good. And if it's too heavy, it goes up to 3+, it exceeds the limit, then you increase the amount of grasshopper to double it. Lower the water to 20%, hit enough grasshopper, hit enough, you can hit it, soak it in water, it's all done, then soak it in water, soak it in water, after an hour, when it's crispy, the water runs, or it's cool, clean it up, then that night, the grasshopper will decrease a lot. Soak it lightly, in the morning, people can't stand it. Because we use grasshopper to do 2 tasks, one is to process the grasshopper, the other is to kill the grasshopper. But in this case, please pay attention to me, I say it's grasshopper, but in the case of high toxic gas, you have to measure it. It means grasshopper in the tub, along with high toxic gas, if you make that solution, in the dark, the light will go out immediately. Please pay attention, don't say, Nguyen doesn't teach me that, I'm lazy, in the morning, how many pots of grasshopper? No. It means, you do it, but you have to check the toxic gas. It means, green water, I can handle it, but the toxic gas has to be low, but high toxic gas, you have to deal with the toxic gas first. If you ask the toxic gas question, there will be a solution to deal with the toxic gas. But in this question, the answer is grasshopper, you have to measure the toxic gas first. If the toxic gas is low, you deal with it like that, and high toxic gas, such as NH3, with NO2, above 5, you have to focus on processing the toxic gas first. When the toxic gas drops below the permissible level, stable shrimp, in a normal state, then you move on to grasshopper processing. Please pay attention. Those are the things to share with you. Please pay attention. Those are the things to share with you. It's very practical so that you can do it before and after. It's not like we have a very traditional thing in the past, which is to deal with everything, but it's related to other things, it's very dangerous. For example, now the toxic gas is high, then you have blackheads, kidney disease, liver disease, it makes a lot of people have 3-4 diseases in a row. The environment is also chaotic. That's why we analyze which one comes first, which one comes later to deal with it. So, YouTube is like a live show, a live show today to talk to you and give you an idea in your head that we have to be careful, calm down, and analyze which one comes first, which one comes later to deal with it. Please pay attention. This is very important. It's called creating an industrial mindset. That's it. When you raise a super-sensitive shrimp, you should change it to avoid the grasshopper. That's all. I think in this business, the pharmacist will guide you on how to deal with toxic gas when it's high. I always say a little bit. High toxic gas. I promised to deal with it when there's a high toxic gas. Next to the previous sentence, in case you noticed, if the grasshopper has turned green, dark, then it's definitely in a high-nutrition environment. Because the grasshopper immediately develops nutrients in the water. It's called malnutrition. So, if the nutrients in the water are high, the toxic gas must be high too. Usually, it's like that. But notice, these situations usually happen after the shrimp, after 45 days. Because when I hear that question, I usually know that this shrimp is quite big. And the small shrimp have a cleaner environment. There are few cases where it happens 2 or 3 times in a row. So, notice, usually, after 45 days, the shrimp is big. Please notice 3 things. First, it's the water. Second, it leads to a dirty bottom. Please notice. For example, when I ask about toxic gas, it's related to a dirty bottom. Please notice. Concentrate on checking the bottom. Maybe the bottom... People say, I use soap 2 or 3 times a day. But the soap keeps leaking to the bottom of the soap. It's all over the place. It doesn't leak around the bottom. But actually, it's around the bottom. It's very dirty. But it doesn't leak. There are many people who are afraid of the cold. It leaks a little and it's all over the place. So, it's very dirty. When that happens, please clean the bottom from every inch to every inch to check if it's still dirty. Do it right away. First, clean the bottom. That's one. Second, change the water a little bit more. Please notice. I'm talking about toxic gas. Change the water right away. So, the water will be lighter. The water will be lighter. Use Yuka and C to make the water cleaner. Yuka also handles toxic gas very well. Use C to increase the resistance of the shrimp. Make the shrimp stronger. Please notice the very basic and basic solutions that I've shown you. Handle the pain first. Change the water. Use Yuka and C. That's the first step. You've succeeded. The second step is that we continue to the second step. Please notice. What is the second step? The second step is in case the shrimp falls into the box, it may have high blood pressure and it may fall off. It may fall off. In the past, if you had an experience that was very wrong, it was that every time the shrimp fell off, without checking the toxic gas, they would hit the box with a hammer. They thought the shrimp fell off because the box was missing. They would break the box to make the shrimp stronger. But in that box, the toxic gas was very high. But they didn't know that when they hit the box, the shrimp fell off faster. The more the shrimp fell off, the less oxygen was needed. The shrimp fell off. So, I want to warn you that in the past, if you did that, you did it wrong. So, you should not do that anymore. You should improve. It means the shrimp fell off. It is 100% certain that the toxic gas is very high. It is almost 100%. Except when the box is broken. 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