Sudden death of laying hens is a disease characterized by sudden death or delirium in cage chickens during the production of laying hens. Newly laid hens and high-yielding chickens that are caged soon become prone.
The clinical manifestations are: acutely sick chickens often die suddenly. The egg production rate of newly-started chickens is between 20% and 60%. The higher the laying rate, the higher the mortality rate of chickens. Dead chicken cloacal prominent, congestion. Chronic diseased chickens are generally difficult to stand up and have weakness in their legs. When they are heavy, they tend to bow or support their bodies with hock joints and tails. They even develop lameness, fractures, and cramps. At the same time, soft shells and shell eggs are produced, egg production is decreased, and the hatching rate of breeding eggs is reduced.
Prevention:
1. Before broiler laying, it is necessary to ensure the quantity and quality of bone meal in the diet to provide sufficient calcium and phosphorus.
2, reduce the breeding density, strengthen ventilation, reduce heat stress, prevent high temperature and oxygen. Large-scale henhouses should adopt vertical ventilation and the effect is better.
3. Use antibiotics to prevent salpingitis and enteritis. The use of green streptomycin 30,000 units per bird has a certain effect. The use of Taile plus drinking water treatment also has a certain effect.
4, in order to alleviate the disease, add vitamin C.
5. For severely affected chickens, in order to reduce blood viscosity and reduce the burden on the heart, you can turn on the lights 1 or 2 times in the night to allow the birds to drink.
Coalescence &separation Filter Elements
Describe:
The coalescence separation filter element is generally cylindrical in shape, and the coalescence separation filter element is used in the oil-water separation system, mainly separating the oil-water mixture, suspension solution, emulsion solution, etc. The application flow of coalescence separation filter in the system can be divided into solid-liquid separation-demulsification-coalescence-separation. In the system, the number of coalescence filter and separation filter is better than that of 3:1, the effect of coalescence is good and the separation speed is fast.
Principle and characteristics:
The surface treated glass fiber or polyester fiber is mainly used as the coalescence medium. The structure of the Filter Material is 0.1 μ m by special design. The filter medium has good coalescence performance. Working process: after the emulsified oil enters the coalescence separator, it first enters the inner filter core from inside to outside, and the small liquid droplet in the dispersed phase changes from small to large. Finally, it falls off on the surface of the coalescence filter core and completes the coalescence process. In the process of flow separation, the larger water drops sink into the sink by gravity, and the small water droplets flow along with the oil to separate the filter elements. The separation filter has hydrophilic effect to block the passage of water. Small water beads collide to form large water droplets, which then settle into the sink again, thus dehydrating the oil.
Different packing sizes should be selected according to different oil-water systems: the smaller the packing size, the larger the specific surface area per unit mass and the larger the contact area with droplets. As a result, the performance of the coalescence filter element is enhanced. Therefore, it is suggested that the separation efficiency of coalescence filter should be taken into account when choosing fiber size, and the pressure drop should be taken into account at the same time.
Range of applications
1. Aviation fuel, gasoline, kerosene, diesel.
2. Cyclohexane, isopropanol, cycloacetone, etc.
3. Turbine oil and other low viscosity hydraulic oil, lubricating oil.
4. Other hydrocarbon compounds.
5. Liquefied petroleum gas, stone tar, benzene, toluene, xylene, cumene, polypropylbenzene and so on.
Coalescence &separation Filter Elements
Ptfe Membrane,Separation Filter Elements,Coalescence Filter Elements,Coalescence Filter
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