Egg Yokes in Autumn and Winter to Promote Production
The temperature difference between day and night in autumn is not easy to control. However, after continuous hot weather in the summer, the flock suffers from reduced appetite, poor digestion, and weak constitution. Therefore, in actual production, various management measures must be strengthened to restore chicken masses as much as possible. At the same time, maximize its production performance. Watch carefully When feeding each morning and evening, carefully observe the overall condition of the flock, including mental status, appetite and feces, etc., and determine if the flock is abnormal. More nutrition Appropriate supplements of animal protein feeds and multivitamins, and adequate troughs and sinks to ensure that each chicken has a suitable location and eat enough to drink. Reduce stress In the autumn and evening, the weather changes greatly, and it is hot and cold. We must do morning and evening insulation and ventilation at noon. Try to make the microclimate change in the chicken house not too large and reduce the temperature difference between day and night to reduce the impact of climate change on the stress of chickens. Improve the environment of the house The house shall be kept dry, well ventilated, and the air shall be fresh. The manure and litter shall be replaced promptly. Eggs were given 16 hours of light each day. According to the traditional breeding experience, laying hens decrease their eggs after the fall, and they do not lay eggs in winter because the light time is shorter after the summer solstice. To ensure constant long-term laying, constant light should be guaranteed. It is recommended to turn on the light at 4:30 each morning, turn off the lights after dawn during the day, turn on the lights before dark, and turn off the lights at 8:30; usually 1 watt to 2 watts per square meter, but pay attention to the use of low-power energy-saving lamps. The chicken house should be distributed evenly, so that people can see the word on the ground in each position of the chicken house according to the normal distance. Optimize flock It is usually best to breed laying hens for 1 to 2 years, and hens over 2 years old are eliminated. Feed more high-quality feeds such as corn and rice bran to encourage hens to increase their weight and market them in time for sale. When new laying hens start to lay eggs, new and old chickens should be reared separately, and new chickens are also gradually transitioned from prenatal feeding to feeding and management during the laying period. Strengthening health and epidemic prevention In early autumn, the weather is hot, hot and humid, and it is susceptible to diseases such as chicken gizzards, coccidia, and egg drop syndrome. Therefore, strengthening the health and epidemic prevention is an important link to ensure the high and stable production of laying hens. One must often clean the chicken house and playground. Food tanks, sinks and other equipment should be regularly disinfected to reduce the incidence of chicken disease. Second, it is necessary to inject Newcastle disease vaccine and chicken cholera immune prevention, and use levamisole, coccidiosis and other deworming. Third, we must observe the chicken house, Qiao knowledge chicken, once the disease is diagnosed and treated in a timely manner, strict disinfection to prevent the spread of bacteria. Promote production and efficiency measures Use natural feed garlic. Natural garlic oil contains more than 100 kinds of volatiles such as propyl disulfide (about 60%), dipropylene disulfide (23%~39%), tripropylene trisulfide (13%~19%), and methyl disulfide, etc. Sulfur compounds, total sulfur content of 35% to 45%. Studies have shown that allicin (essential oils) has inhibitory or killing effects on various species of cocci, dysentery bacilli, E. coli, typhoid bacillus, fungi, viruses, amoeba, coccidia and aphids, especially for bacillary dysentery and enteritis. It has good curative effect, and has functions of promoting feed intake, aiding digestion, promoting egg production, improving product flavor and preventing moldy feed. In addition, allicin can be combined with vitamin B to increase the absorption of effective vitamin B. Allicin also activates the animal's immune system. Natural garlic can be added directly (with skin) in 1% to 2% of the feed for laying hens. Gypsum. Research into fine, according to the total amount of feed 0.3% ~ 1% mixed feeding, there is antipyretic clear stomach fire effect. The main component of raw gypsum is water-containing calcium sulphate, as well as trace amounts of iron ions and magnesium ions. The raw gypsum has a sulphur content of about 18.6%. The main components of calcined gypsum and calcined gypsum are calcium sulphate anhydrous. The latter two have no antipyretic heatstroke effect and should not be used as a substitute for the former. Tests have shown that when the product is absorbed into the blood, it can inhibit nerve stress reaction and reduce vascular permeability, so it has anti-inflammatory and antipyretic effects. Gypsum can also increase the concentration of calcium in the serum and reduce the excitability of skeletal muscles. It is suitable for animal heat syndrome and heat stress.
Plastic centrifuge tubes are commonly used in the laboratory. Since glass centrifuge tubes cannot be used in high-speed or ultra-high-speed centrifugates, plastic centrifuge tubes are generally used more.
Scientists often use centrifuge tubes to separate solids, liquids, and gases. You can separate solid particles from liquids, like plasma and blood cells. You can do this by spinning the Centrifuge tube that carries the material at high speed. The centrifuge tube allows centrifugal force to push heavier material to the bottom of the tube. The centrifuge tube facilitates the preservation of samples to be separated by centrifugation. Typically, these centrifuge tubes can handle a small number of samples. Researchers used different types of centrifuge tubes for different tasks and procedures.
Centrifuge tubes are essential for sample separation, delamination, or density gradient separation using centrifuges. Centrifuge tubes have a variety of applications in biology, particularly cell culture and microbiology, chemistry, clinical healthcare, and wider industrial Settings.
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