In the physiological process of chicken growth and development, egg production and nutrient metabolism, a small amount of trace elements such as iron, copper, diamond, iodine, etc. are required. People often refer to these elements as "small characters." Don't look down on these "small characters", they play an extremely important role in the growth and production of chickens. Iron: is a component of hemoglobin, myoglobin, and various oxidases. It is closely related to the transport of oxygen in the blood and the biological oxidation process in the cells. Nutritional anemia can occur when the iron content of feed in laying chickens and laying hens is too low or absent. 1.1 mg of iron is required for each egg produced (typically 80 mg of iron per kg of feed). Feeding method: The iron solution can be directly fed into the feed of the chicken. Copper: It has a catalytic effect on the formation of hemoglobin and is related to the development of bones and the normal metabolism of the central nervous system. It is a composition and activator of various enzymes in the chicken body. The lack of copper in chickens can lead to anemia. If the chicken is short of copper, you can add 2 ml of copper sulfate per kilogram of feed, but if you feed more, it is prone to poisoning, and the more you feed, the better. Cobalt: It is a component of vitamin B12. If it is deficient in cobalt, it will affect the metabolism of iron. Chickens need very little cobalt, and adding five-millionths of oxidized diamonds or cobalt sulphate to their feeds can promote their growth and production. It can also be replenished with vitamin B12. Manganese: It mainly promotes the metabolism of calcium and phosphorus in the body, the formation of bones and eggs. The solution to chicken manganese deficiency is to feed the wheat bran, oatmeal and green feed. When the green and green feed is lacking in winter and spring, you can feed some manganese-rich germinated feed to supplement. Iodine: When chickens are deficient in iodine, their metabolic function is reduced, their growth and development are blocked, and a serious deficiency can cause death. The amount of iodine required by the chicken (per kg of feed) is: chicks, young chickens 0.35 mg, laying hens, breeders 0.3 mg. Zinc: is a metal element constituting a carbonic acid hydrolase. Carbonate hydrolase is most abundant in the cortex of the body cells, gastric mucosa and kidney, and it plays a role in catalyzing the synthesis and decomposition of carbonic acid in the body. If the feed is deficient in zinc, the chicks show loss of appetite, slow growth, poor feather growth, weak legs and difficulty walking. The laying hens are delayed in sexual maturity, the eggshells are thin, and even soft shell eggs are produced, and more dead embryos are produced. The amount of zinc required by the chicken (content per kg of feed) is 50 mg for chicks at 8 weeks of age and 65 mg for laying hens. Feeding a certain amount of meat and wheat feed will satisfy the chicken's need for zinc. Magnesium: is an essential element in the formation of bone. It is closely related to the metabolism of calcium, phosphorus and carbohydrates, and plays a role in activating various enzymes in the body. When the supply of magnesium is insufficient, bone calcification is abnormal, growth and development are poor, laying rate of laying hens is reduced, and neurotic tremor is prone to occur. Chickens often feed some mixed feed to meet the magnesium needs. Selenium: If the chicken is deficient in selenium, there will be large edema under the skin, accumulating plasma-like liquid; the testicular atrophy of the cock will be degraded; the reproductive function of the hen will be disordered; the hatching rate of the breeder will be reduced; the embryo will develop into a deformed shape. In the absence of selenium, attention should be paid to improving the feeding conditions and prevention and treatment with sodium selenite. Dissolve 0.1 mg of sodium selenite in 100 ml of water for chicken to drink.
Windows are optical glass with ground and polished faces that are relatively parallel.They are used to isolate two physical environments while allowing light to pass.Windows made of BK7 material have high transmission in the visible spectral region, do not scratch easily, do not degrade under normal operating environment and hence do not need any special precaution or treatment. Anti-Reflective Coating will provide higher transmission.
Specification of our optical windows as follow: Round Optical Window,Optical Infrared Window,Optical Square Window,Irregular Window,Optical Flat Window China Star Optics Technology Co.,Ltd. , https://www.opticsrealpoo.com
When selecting windows, you should consider the following: material,transmission,scattering,wave front distortion,parallelism and resistance to certain environment.
China Star Optics offers all types of windows made from different materials.Special size and materials are also available upon request.In addition, we provide a variety of single layer or multiplayer anti-reflecting coating on Optical Windows.
*Material: BK7,UV-grade fused silica (JGS1) or other optical crystals materials
*Length tolerance:+/-0.01
*Width tolerance:+/-0.01
*Center thickness tolerance:0.005mm
*Surface quality:80-50 to 10-5 Scratch/Dig
*Surface flatness:<lambda to lambda/20
*Parallelism<=1min -- 2sec
*Clear Apenture:80% -- 100%