Black-bone chicken disease immune program

Bacterial diseases of black-bone chickens can be prevented by antibiotics, while viral diseases can only be prevented by vaccination. Therefore, the formulation of reasonable immunization procedures is particularly important, only with scientific and reasonable immunization procedures, can ensure the health of chickens, so as to achieve the maximum economic benefits.

The formulation of immunization procedures should be based on the epidemic situation and feeding environment in this area, that is, no prevention should be made for infectious diseases that have never occurred in this area, and those that have not occurred in this area before, but which have just occurred and have serious harm must be prevented. focus on the prevention of frequent hazards, such as avian influenza, chicken Newcastle disease, kidney transmission, and so on. Second, according to the state of the flock, that is, only healthy flocks can produce immune response to the vaccine and produce antibodies. The immune effect of chickens under stress or disease is poor, especially when chickens suffer from some immunosuppressive diseases such as leukemia, infectious bursal disease, Marek's disease, damage of immune system and so on. After vaccination, they can only produce low-level antibodies and have many adverse reactions. Third, it should be based on the characteristics of the vaccine itself, such as the virulence, the length of protection period and so on. Generally, inactivated vaccine and attenuated vaccine are used together.

The commonly used immunization procedures and health care procedures for black-bone chickens are as follows:

1-day-old: within 24 hours after hatching, 1 dose of Marek vaccine was injected subcutaneously. Gentamicin can also be injected at the same time to prevent and treat white dysentery.

1Mel 3 days old: mainly through the use of drugs to reduce the number of mycoplasma in chicks, which is of great significance to prevent the occurrence of slow call, and it is also necessary to use drugs to prevent and cure Escherichia coli, so it is necessary to choose methanesulfonate, which has a better control effect on slow call and big stick. At the age of 1-3 days, it is best to give immune enhancers, such as astragalus polysaccharides, which can restore the injured immune organs and improve the specific immune function of chicks.

4 days old: kidney-borne attenuated vaccine + Newcastle disease Ⅳ strain, 2 times the amount of drinking water or eye contact. At the same time, 0.25 ml of kidney oil emulsion was injected. At the same time, electrolytic multi-dimension is added to drinking water to supplement nutrition and prevent stress.

10 days old: kidney-borne attenuated vaccine + Newcastle disease Ⅳ strain, 2 times the amount of drinking water or eye contact. At the same time, the beak was cut off and the first portion of fowlpox pterygoid membrane thorn seed. Add electrolytic multi-dimension to drinking water, supplement nutrition, add VK3 to prevent and cure bleeding.

15 days old: the equal virulence vaccine in bursa of Fabricius was dripped with 1 times or 1.5 times of drinking water, and then mixed with Newcastle disease and avian influenza H5, each feather was subcutaneously injected with 0.3 ml.

22 days old: two doses of Newcastle disease I vaccine were injected subcutaneously (in the high incidence area of Newcastle disease) or twice the amount of drinking water of Newcastle disease Ⅳ vaccine. After mixing Newcastle disease and avian influenza H5, each bird was subcutaneously injected with 0.3 ml. At this age, they are most susceptible to viral diseases, such as bursa of Fabricius, renal transmission of Newcastle disease, and influenza, so they should be given antiviral drugs of traditional Chinese medicine, and broad-spectrum antibiotics should be added to prevent and treat respiratory tract infection and colibacillosis. Add electrolytic multi-dimension to drinking water to supplement nutrition.

40 Mel 45 days old: 0.5 ml per feather of Newcastle disease and bivalent bivalent oil emulsion vaccine. In order to prevent and cure enteritis and respiratory diseases at this stage, 0.5% allicin and norrimycin can be added to the feed for prevention.

65-day-old chickens were immunized with Newcastle disease IV vaccine in drinking water. In order to improve growth in the middle and later stages, rhubarb soda powder, Radix Astragali, Codonopsis pilosula, Poria cocos, licorice, etc., which promote growth and improve immunity, can be added to the feed by 1%.