Water float Learn more about Water float
-
Several causes and prevention of floating head of fish
The "floating head" of fish is a common phenomenon in aquaculture production, and it is also an important sign to judge whether fish get sick or not and the change of water quality. However, many farmers do not understand the cause after discovering the "floating head" of pond fish, and drug administration only based on "experience" is often ineffective and even lead to a large number of deaths. In fact, the floating head of fish can be caused by a variety of factors. According to the cause, "floating head" can be divided into the following three types. The anoxic floating head is due to the low content of dissolved oxygen in the water and the farmed fish swim to a relatively high surface.
2019-01-16 -
How to judge the weight of floating head of fish
The weight of the floating head of a fish is mainly judged by the time when the fish began to float, the location of the floating head, the size of the surface of the floating head and the species of the floating head fish. 1. Dark floating head. Usually occurs when it is already dawn but the sun has not yet come out, when the fish move in the middle of the pond and on the surface of the wind, you can see bursts of spray. At this time, the dissolved oxygen in the pond water body is 2-3 mg / L, which is a normal floating head. two。 Light floating head. It often happens at dawn, when the fish are in the middle of the pond and on the surface of the wind, and the wild fish are at the edge of the pond.
2019-01-16 -
Several situations of floating head of fish and their countermeasures
Several situations of floating head of fish and their countermeasures
2018-09-08 -
Causes of floating Fertilizer in Rice
Causes of floating Fertilizer in Rice
2020-03-03 -
Puffing floating material has many advantages in breeding four major domestic fish
The culture of grass carp with puffing floating water complete feed has many advantages such as low cost, high utilization rate and protection of culture water environment. In the United States, Japan and other countries with developed aquaculture technology, floating aquatic feed has been widely used since the 1980s to meet the needs of environment and fishery production. In recent years, China has also vigorously promoted the use of floating aquatic feeds, which has developed rapidly. Many famous and excellent aquatic species have been used in large quantities, but the use of expanded floating fish feeds for breeding four major domestic fish has not been successful.
2019-01-16 -
What are the effects and effects of floating wheat with traditional Chinese medicine? How do you eat it? For insomnia?
I do not know if you have heard of floating wheat, it is a kind of traditional Chinese medicine, is the frivolous and thin fruit of wheat, and the effect of floating wheat is also recorded in ancient medical books, and has been used by doctors of all ages until now. What are the effects and effects of floating wheat? What?
2020-11-09 Traditional Chinese medicine float wheat efficacy and effect have what how -
Integrated control technology of fish floating head
From June to October every year, the temperature is high and the weather is muggy. If the fish stocking quantity is too large and the water quality is bad, it is easy to cause anoxia floating head, or even suffocate to death. In severe cases, 1-2 hours can cause all the pond fish to die. Therefore, correctly analyzing the causes of fish floating head and identifying the omen and severity of fish floating head are of great significance to strengthen daily management and rescue Fantang in time. (1) the reasons for the floating head of fish. There are mainly the following aspects: (1) Blind excessive feeding and fertilization, resulting in excessive fertilizer of water quality, mass reproduction of plankton, and organic.
2019-01-15 -
Causes and control methods of floating head and floodpond in fish
Causes and control methods of floating head and floodpond in fish
2018-09-07 -
What do you think of floating pole when adjusting five to three?
People who have fished know that both black hole fishing and wild fishing must be adjusted to improve the probability of the fish taking the bait. what do you think of the floating pole in five fishing and three? First, adjust five to catch three, what do you think of floating pole? Prepare the main line, sub-line and lead sheet, of course.
2020-11-11 Tune five fishing three how look at drift lift pole have been fishing fish people are all -
How to adjust the drift of red worm fishing
How to adjust the drift of red worm fishing
2018-07-03 -
builds floating houses to dance with the water in Holland
In response to rising sea levels, the Netherlands builds floating houses. Ke Wenzhe said that it is necessary to turn Shezi Island into Amsterdam in the Netherlands. Because there are so many floods, the Netherlands has always had a sense of disaster. Let's take a look at foreign examples of how to co-exist with water. Holland.
2018-07-03 -
Penaeus vannamei is easy to float due to anoxia. How to prevent and control the floating phenomenon of Penaeus vannamei
Penaeus vannamei is easy to float due to anoxia. How to prevent and control the floating phenomenon of Penaeus vannamei
2018-10-28 -
Distinguishing between floating leaves and standing leaves of lotus bowls the habits and maintenance of plants
In the eyes of many potted friends, the leaves of pot-raised bowl lotus should always be floating on the water surface, and there will be no standing leaves. In fact, the bowl lotus can also stand out from the leaves, and sometimes it can bring people a kind of scene that stands out from the crowd. Of course, for most people, there are
2019-06-25 -
The causes and control measures of the latest citrus floating peel
Citrus floating peel is a common physiological disease, which mainly refers to the gap separation between peel and pulp during citrus ripening, resulting in pericarp bulging, which mainly occurs in the later stage of ripening. So how to prevent clean floating skin? Come together.
2020-11-10 The latest citrus floating skin causes and control measures -
Attention, farmers! To prevent the floating head of fish in autumn, these six measures can be used for reference.
In the golden autumn season, floating head incidents occur frequently in the process of pond culture, which cause a large area of dead fish in the pond and cause serious economic losses to farmers. So why are there fish floating heads? What are the preventive measures? Why are fish prone to appear in autumn?
2020-11-11 Farmers attention autumn to guard against fish floating head this 6 items -
Causes and control measures of citrus floating peel
Causes and control measures of citrus floating peel
2019-07-01 -
How to adjust the drift of double-hook earthworm fishing
Friends who like fishing must pay close attention to bait, and drifting is also a key point. So how to adjust the drift of double-hook earthworm fishing? 1. How to adjust the floating of earthworms with double hooks? first, hang the earthworms with a half-water double hook, then add or subtract lead skin or bite lead to float 1 eye; then float
2020-11-11 Double hooks fishing earthworms how mix drift like friends -
Prevent fish from floating their heads in summer
First, the prediction of floating head. Summer daytime light is strong, the temperature is high, the evening weather. Sudden thundershowers or southerly winds blow during the day, the water temperature is high, and suddenly turn to the north wind at night, the water temperature drops rapidly. two。 Continuous rain, low pressure, muggy, weak wind, foggy weather. 3. After a long time of sunshine and no rain, the fish ate vigorously, the water color was thick, and the weather suddenly changed. Second, the rescue of floating head, 1. Add new water to increase dissolved oxygen, improve water quality and increase the range of fish activities. two。 Turn on the aerator
2019-01-16 -
Tuna fishing
There are many ways to catch tuna, and now the most popular one is longline fishing. Longline fishery can be divided into three types: floating longline, bottom longline and middle longline. Tuna longline fishing gear is mainly composed of dry rope, branch line, float, floating line, fishing hook, etc., that is, a number of branch ropes with hooks are hung on the extended dry line to catch tuna. A number of floats are tied to the dry rope, and the length of the floating rope and branch rope between the dry rope and the float plays a role in regulating the fishing water layer. The hook needs to be loaded with erh material. The main ingredients are frozen bamboo swordfish, squid and sardines.
2019-01-16 -
Analysis and Countermeasures of hypoxia in cultured Fish
Hypoxia refers to the state in which the internal tissues and cells of fish do not get enough oxygen to maintain their normal function. In order to distinguish from hypoxia in water, it can be called "biological hypoxia" or "tissue hypoxia". Asphyxia (dyspnea) is a phenomenon that occurs during biological hypoxia, and floating head is a common manifestation of dyspnea or asphyxia in aquaculture production. There are two cases of anoxic asphyxia in fish: one is that when the dissolved oxygen in the water is insufficient and the air pressure is too low, even if the respiratory function of the fish is normal, the tissues and cells in the body can not get enough oxygen, resulting in "anaerobic hypoxia";
2019-01-16