MÔ HÌNH NUÔI TÔM KHÔNG KHÁNG SINH (PHẦN 2)-KỸ THUẬT CHĂM SÓC

This is Mr. Nghiem. He is in charge of farming techniques. He specializes in hygiene and food. He is in charge of water management. Let's have a chat with him. Mr. Nghiem, how big is this area? We have 832 hectares. We only use 80 to 85 liters of water. The diameter is 32 meters. How many oxygen pipes do you use? We only use one. There are about 248 oxygen pipes. It's a bit rough, isn't it? This area is cleaner. How long is this pipe? Each pipe is about 60 cm long. The weight of the stone is about 6 kg. In this pipe, we can use cement or concrete. We can use smaller concrete or other oxygen pipes. People now use 90mm pipes. It's less contact with the bottom of the well. So it's less dirty. These are oxygen pipes, right? Yes. This is a steel frame. Yes, it's made of FI 27 steel. FI 21 and FI 27 are heat-resistant. How thick is the sand? It's 1mm thick. There are two layers. One is inside and the other is outside. The outside layer protects the sand. It's less salty. How do you make sure the pipe is clean? We check the quality of the pipe regularly. Is the bottom of the well level with the ground? The bottom of the well is level with the ground. If the well is higher than the ground, it's easier to drain the water. If it rains heavily, the water will flow to the bottom of the well. So the water will flow to the bottom of the well. If there is water in the well, it's okay. But if there is a lot of water in the well, it's dangerous for the pipe. This is a composite pipe. It's easy to break. We can improve it by adding concrete. How high is this pipe? It's 1.2m high. The water level is about 80cm. The design is 1.5m high, but it's about 30cm deep. How about the water level? It's about 500-600cm. The design is 80cm high, but it's about 80cm deep. How many cubic meters of water do you have? We have about 70,000 cubic meters of water. It's about 100 cubic meters. How many times do you change the water every day? We change the water once or twice a day. We change the water 30% every time. It's about 50-60%. How do you keep the water color? We have to change the water. We change the water with potassium. What is the pH level here? It's 8. In the morning, it's about 28°C. In the afternoon, it's about 31°C. It fluctuates between 28°C, 31°C, and 32°C. How high is the water level? The water level is about 80-90cm. We have to increase it to about 106-107cm. Do you use a ready-to-use bucket? We use a ready-to-use bucket. The bucket is too big, so we can't fill it up all the time. The water level is constantly fluctuating, so we can't guarantee the water level. Some people raise the shrimp to a size of 3.7-3.8cm. The water level is low, but they can't raise the shrimp. What is the reason? Do you take the initiative to deal with this situation? We have to monitor the shrimp. We have to monitor the shrimp regularly. If the shrimp is growing well, we can add more water in advance. We don't want the shrimp to be too slow. The shrimp can slow down, but not from 150cm to 100cm. If the shrimp is too fast, the shrimp will fall off easily. The shrimp won't be hard anymore. We add more water in advance. We can change the water and add more water in advance. How long does it take to build a raft like this? It takes about a week to 10 days. If the weather is good, it takes about a week. What is the price of this raft? The price of this raft is 150,000,000 VND. The length of this raft is 800m. This raft is big. How much does this raft cost? This raft costs only 200,000 VND. This raft costs 400,000 VND, right? Yes, it costs 400,000 VND. The length of this raft is 400,000 VND, but the area is not 400,000 VND. The length of this raft is 800m. There is a slope of the raft, so the water level can rise. Is this raft made of silicone? Yes, it's made of silicone. How long does it take to build a raft like this? It takes about 45 minutes to 1 hour. It takes about 30 minutes to 1 hour to build a raft like this. If we use oxygen for a long time, it will be very difficult to build a raft. How many meters is the raft? 28 meters. Can you take a picture of this raft? Yes, I can. What are the factors that make this raft not beautiful? What are the factors? There are many factors. First, the sediment in the river is too high. Second, if the shrimp is too thick, it will peel off. When the shrimp is peeled off, it will be very hard. If the shrimp is peeled off, it will be very hard. What are the factors that make this raft not beautiful? The sediment in the river is too high. How do you control the high sediment? If the sediment is too high, we can remove the sediment and replace it with fresh water. How do you control the high sediment? We can use 1-2 BVM. It depends on the sediment level. 1-2 BVM. Specifically, which type of sediment? We can use BKC or EOS. Currently, there are 3 types of BKC. Specifically, which type of BKC should we use? We can mix the BKC and EOS. We have to clean the raft at the right time. If the sediment is too high, we can't clean it in time. If the sediment is too high, it will cause more damage. It's easier to get sick. If the sediment is too high, we can't clean it in time. Currently, many types of BVM can suppress the sediment. If the sediment is too high, it will suppress the sediment. Currently, we use BVM to suppress the sediment. If the BVM is too high, it will cause more damage. What type of BVM is this? This is the BVM for the raft. What type of BVM is this? This BVM has 3 modes. 1 is speed of rotation. 2 is rest time. 3 is rest time. What is the speed of rotation? The speed of rotation is at the top. The rest time is here. The rest time is 1 minute. We can do 1, 2, 3, 4. The rest time is 1 minute, 60 seconds. How much do you feed the 30-meter-long shrimp per day? We feed about 75 kilograms a day. We feed about 80,000 loaves a day. It depends on the number of loaves in the raft. Currently, the raft is feeding 75 kilograms. How many times a day? Right now, we feed them on a regular basis, we don't separate them. We change the diet. What time do you feed them? We start at 6 o'clock. 6 o'clock, you change the diet. Yes, we change the diet. How long does it take to fertilize once? Right now, it takes 5 minutes to fertilize once, about 5 seconds. 5 seconds, can you calculate how many kilograms of fertilized food can be produced in 5 seconds? It's only a few grams. In 5 seconds, it's about more than a gram. It's not a few kilograms. If it's only a few grams, how can it be enough for the shrimp to eat? That's why we have to adjust it to fertilize continuously. We feed them on a regular basis. These shrimps can eat. There is another type of shrimp. We feed them on a regular basis. We use machines to feed them on a regular basis. Some farmers feed them by hand for 1-2 hours and then fertilize again. But the shrimp will eat again and again. If the shrimp is far away, it won't be able to eat again. So, first of all, it reduces the workload. Yes, that's right. Secondly, it's more even. Yes, we feed them by hand. It's more proactive, right? Yes. We feed them by hand for about 1.5-2 hours and then fertilize again. Sometimes, the shrimp doesn't eat all of it yet. Then we turn it upside down. But the shrimp is really hungry. Is there any toxic gas in this aquarium? Yes, there is. NH4, NH3 still exist in the aquarium. But for NO2, we have to clean it and change the water. I think we have to limit it. How high is the NO2 level in the aquarium? The NO2 level is 1.0. We have to clean the aquarium every 2-3 days. So, the NO2 level is very high. The shrimp grows the fastest. The shrimp weighs about 70-80 grams. So, the shrimp grows the fastest. The shrimp releases a lot of gas. So, the NO2 level is very high. Which one is easier to handle, NO2 or NH3? NH3 is easier to handle. But NO2 is very difficult. If the NO2 level is too high, we can use Yucca. Or biological products. But the easiest way to handle the shrimp is to change the water. But we have to change the water. The water has to be clean. We have to clean the aquarium. We have to limit it. That's the best way. Besides NO2, NH3, NH4, do you have H2S? No, we don't. Because we don't have H2S. Where does your experience with H2S come from? H2S is usually found in the mud. It's in the mud that has long been blackened. When we fix the fan or turn on the fan, it pushes the black mud up and increases the H2S. H2S is our H2O. What is your experience with H2S? H2S can be used as a super vest. We limit the waste at the bottom of the tank. We can put a plastic bag on the bottom of the tank. The plastic bag will reduce the waste. Plastic or sanitary napkins are very effective, right? We use sanitary napkins right from the start. We use them right from the start. This is the tank to mix sanitary napkins. Do you use gas? Yes, we use gas. We choose to look with our eyes. We use a compressor. We use a compressor to open the valve. We open the valve to release the gas. If the gas is less than 10% or 20%, we turn it off. How many particles are there in this tank? There are 5 particles in this tank. What are the types of sanitary napkins you use? We mainly use 3S. 3S is fine, right? Yes, 3S is fine. Do you use Nitro Factor? No, we only use Nitro Factor. We only use Nitro Factor. How much is the Nitro Factor? In the factory, it is about 10,000 to 14,000 VND. How many kilograms of butter do you use? We use about 10 kilograms of butter. Do you use a vacuum cleaner? Yes, we use a vacuum cleaner. We vacuum for about 6 hours. Yes, we vacuum for 6 hours to increase the efficiency. Do you use sugarcane? Yes, we use sugarcane. Sugarcane is dirty. It causes pollution. Yes. I think sugarcane is not much more expensive. Yes, sugarcane is fine. We use as much sugarcane as possible. Do you use it until night? Yes, we use it until 8 or 9 p.m. Do you soak it in the pond? Yes. When do you soak the sugarcane in the pond? Do you soak it before you release the shrimp or after you release the shrimp? We prepare the sugarcane from the time we prepare the pond. We prepare the sugarcane from the time we release the shrimp or after we release the shrimp. Do you prepare the sugarcane from the beginning to the end of the day? Yes, we prepare the sugarcane from the beginning to the end of the day. When the shrimp is big, do you increase the amount of sugarcane? Yes, we do. Normally, we use 200 to 300 grams of sugarcane. We use 2 types of hygiene. Do you use hygiene every day? Yes, we do. We use hygiene every day.