Harm of Hepatitis C
Hepatitis C is a disease transmitted primarily through blood. Chronic
infection of hepatitis C virus (HCV) can cause chronic inflammatory
necrosis and fibrosis of the liver, which may progress into hepatic
cellular cancer (HCC), extremely harmful for the patient's health and
life. Hepatitis C has become a serious social and public health problem
in the world.
1.Etiology and Natural History of Hepatitis C
2.Prevalence of Hepatitis C
3.Transmission Route and Susceptible Population
4.Low Awareness Rate of Hepatitis C
5.Harm of Hepatitis C
6.Prevention and Control of Hepatitis C
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To buy breeding stock to put four off
The following four levels must be strictly controlled when purchasing breeding stock. Only in this way can we lay a good foundation for future breeding. First, the quality of breeding stock 1. To have a "specialty of livestock and poultry production and operation license," the unit or professional households to purchase. 2. Find out the blood relationship of the breeding rate and prevent inbreeding. On this basis, the seller issued a breeder certificate and breeder pedigree. 3. Observe whether the appearance of the breeder's coat, body shape, etc. conforms to the characteristics of the breed. 4. Pay special attention to observing whether the female's breasts are full and well-proportioned, and whether the comrades' testes are the same size. Second, prevention of disease disinfection Before the introduction, strict disinfection of the bar, barn and its utensils. Disinfection can use formaldehyde solution, caustic soda, 100 poison and so on. When introducing, ask the local animal husbandry department to send a person to the livestock quarantine. After confirming the health, issue a "proof of livestock transportation quarantine certificate." After the breeding stock is purchased, it should be carefully observed for more than two weeks, and then the vaccine should be injected according to the immunization procedure. Third, the long-distance transport off 1. Before loading the animal, in the bottom of the carriage padding about 3 centimeters of dry sand or straw, to prevent the breeding stock hoof damage. 2. Try to avoid transporting in rainy, windy weather. 3. In case of rough roads, you should decelerate when going downhill or turning. 4. If the transportation time is more than 6 hours, feed the appropriate amount of green feed to the breeding stock. Fourth, the environment to adapt to the customs 1. After the introduction of 1-3 days for animals to drink oral rehydration salt solution, reduce stress response. 2. Within one week after introduction, use the same feed formula as the seller, and gradually change the formula later. 3. Carefully rearing to ensure that the newly introduced breeding stocks adapt to the new environment smoothly.