Vitamin K is a substance that has the biological activity of chlorophyll. There are four forms of vitamin K1, vitamin K2, vitamin K3 and vitamin K4. Vitamin K1 and vitamin K2 are naturally occurring, and are fat-soluble vitamins, that is, vitamin K1 extracted from green plants and intestinal bacteria (such as Escherichia coli). ) Synthetic vitamin K2. Vitamin K3 and vitamin K4 are synthetically synthesized and are water-soluble vitamins. The most important are vitamin K1 and vitamin K2.
Vitamin K is a yellow crystal with a melting point of 52-54 ° C. It is usually an oily liquid or solid. It is insoluble in water and soluble in organic solvents such as oils and ethers. All vitamin K is chemically stable, resistant to acids and heat, and has little loss in normal cooking, but is sensitive to light and easily decomposed by alkali and ultraviolet light. In the chicken industry, the use of vitamin K can prevent the following chicken :
First, the chicks are fed with vitamin C 100 mg daily to promote growth and increase survival rate.
Second, when the chicken is vaccinated, timely supplementation of vitamins A, D, C will enhance the body resistance.
Third, chickens suffering from infectious diseases such as colds, adding vitamin C tablets to conventional drugs can strengthen the function of drugs and shorten the course of disease.
Fourth, low temperature and low temperature in winter, vitamin D added to chicken feed, can prevent vitamin D deficiency caused by less light in cage chickens.
5. When the laying hen suffers from diarrhea and other diseases, adding 300 mg of vitamin C daily can improve the ovarian metabolic function and increase the egg production rate.
6. When the temperature of the house is higher than 32 °C, the chicken will eat less and the egg production rate will decrease. At a high temperature of 34 ° C, adding 200 mg of vitamin C per kilogram of hens, the egg production rate can be increased by 8%; adding vitamin C 300 mg, the egg production rate is increased by 10%.
Seven, chicken body lack of calcium on the production of soft shell eggs, severe eyeballs upturned, head and neck items of tonic bending, toe sputum. When treated with calcium, add vitamin D to make the disease get better.
Eight, chicken suffering from gastrointestinal disease, add vitamin B1 tablets in conventional drugs, can prevent symptoms such as loss of appetite.
Flexible Flap Disc
Flexible Flap Disc is suitable for polishing of stainless steel, metal, metallurgy, automobile, wood, marble and other industries. It is especially suitable for the processing of stainless steel and can replace the resin-shaped grinding wheel. It has strong elasticity, high tensile and bending strength, good self-sharpening, high grinding rate, and low noise. It is suitable for welding seams in the box. Polishing of the edges.
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According to the type of abrasive particles: ceramic alumina VS zirconium corundum VS alumina
According to the type of abrasive selected, the flap disc can be divided into three types: ceramic alumina, zirconium corundum and alumina.
Because ceramic alumina itself has many crystals, it has good self-sharpening, relatively neat edges, good heat dissipation, and long service life. Therefore, ceramic alumina louvers are mainly used for the grinding of stainless steel, aluminum and other hard metals.
Zirconium corundum itself is a polycrystalline crystal, with fast cutting speed, good self-sharpening, and strong resistance to high pressure and high temperature. Therefore, zirconium corundum louver blades have strong cutting ability and long service life.
Alumina: single crystal, the cutting ability begins to decline at the beginning of grinding, and the abrasive grains are not easy to break, so the alumina flap disc is suitable for the processing of common metals.
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