1, the incidence of the situation A chicken farm has five years of chicken breeding experience. Each year is the spring of the previous year. After one egg production period and the second year of autumn, it will be taken off the shelf in the autumn and adopt the all-in and all-out system. At the beginning of December 2005, the egg production of 20,000 young laying hens in the 4 chicken houses in the field decreased significantly, and there was a hair loss phenomenon. They had adjusted calcium, phosphorus, multivitamins, light intensity and feed in the feed. Add antibiotics, the treatment effect is not good. 2, clinical symptoms The chickens are lively and lively, often crowded, restless, and frightened. The feathers are unkempt and mostly broken. Most chickens lick their feathers, and the chicken body is thin. The rashes and dander are visible on the skin of hair loss. Check the chicken body. Under the head, neck, back, abdomen and wings, a large number of feathers crawled on the base of the skin and feathers of the thinner parts of the feathers and picked up the dander. 3, diagnosis According to the chicken's irritability, the chickens were examined. It was found that a large number of feathers were parasited at the base of feathers in the chicken body. There were no pathological symptoms in the necropsy. Diagnosed as chicken body lice, chicken head lice, chicken velvet mixed infection. 4, treatment The chicken body was sprayed with 12.5 mg/kg deltamethrin, and the chicken house was disinfected. After the first spraying, the mice were sprayed again on the 4th and 10th days, and the chickens were sprayed for 1 week. The health condition improved markedly, and egg production gradually increased. After 3 spraying baths, all the feathers died. The egg production of the chickens returned to normal. 5. Prevention The chickens were regularly sterilized by drug spraying and performed once every two months. After that, the disease did not occur again in this field. 6. Summary Hydrangea is a common ectoparasitosis in chickens. It can occur all year round. It feeds on feathers and danders. It is because chickens are infected through contact with pheasants. The damage depends on the degree of chicken infection and the infection is serious. Chickens can cause the growth of chicks to be hindered, and the egg production of chickens is reduced. Because the symptoms of affected chickens are not obvious, people often do not pay enough attention, so that the disease is not controlled in time. The clinical symptoms of the disease are easily misdiagnosed as feed malnutrition, calcium deficiency and other trace elements, excessive light intensity, etc. In case of suspected cases, the pathogens should be checked for confirmation and reasonable treatment. The use of the liquid medicine concentration should be mastered for the treatment of Yu 虱 , , , , , 晚 晚 晚 晚 晚 晚 晚 晚 晚 晚 晚 晚 晚 晚 晚 晚 晚 晚 晚 晚 。 。 。 。 。 。 。 。 。 。 。 。. When using drugs, pay attention to the temperature of the chicken house kept at 18°C ​​or more to prevent the cold from spraying the wet chicken body. The coop must be clean: hygiene, regular disinfection work, and killing insects is one of the important measures to improve chicken production performance and increase breeding efficiency. It is recommended that chicken farmers pay attention to the work of the chicken farm.
Operating Table is used at surgical operation room, our table can use for almost all kinds of surgries; For Surgical Table, we have three types, Electric Operation Table, Electric Hydraulic Operation Table; Manual surgical table; Lewin company do much investment on new products research every year, to research new type surgical table to meet the hospital requirment;we Lewin has High grade surgical table, middle grade surgical table to meet different requirments from user; The OT table adopt imported parts, much stable and safty;
Operating Table Operating Table,Surgery Table,Surgical Table,Electric Hydraulic Operating Table Shandong Lewin Medical Equipment Co., Ltd. , https://www.operatinglight.nl
