1. 1 Reasonable site selection, do a good job in the renovation and construction of chicken coops. The henhouse must be built in a place with high terrain, convenient drainage and good ventilation, and it is not suitable to build a field in a low-lying and humid place; A 70cm× 120cm lighting ventilation window can be opened every 3m before and after the henhouse. A perch is placed on one side of the room, and the gap between the water dispenser and the sink is distributed in the henhouse. At the same time, a small door with a height of 160cm and a width of 70cm is opened on the sunny side, and a playground covered with sand is set outside the door. The henhouse should have a cement floor to facilitate cleaning and disinfection. In addition, it is necessary to strengthen greening and purify the environment of chicken houses.
1.2 Disinfect the chicken coop and utensils to keep the chicken coop clean and hygienic. The henhouse should be well insulated, dry and hygienic, with moderate light and good ventilation. Spread quicklime on the ground or spray 10% raw lime milk for disinfection. If possible, it can be washed with high-pressure water and disinfected with torch flame. Paint the walls and flue around the shed with 10% raw lime milk, then fumigate with 15ml formalin solution and 7.5g potassium permanganate per cubic meter, seal it for 1 ~ 2 days, and then open the window for ventilation. The playground near the henhouse should also be disinfected before use. Umbrella incubator, cage, sink, drinking fountain, etc. Clean and disinfect with 1% caustic soda solution or 10% quicklime emulsion, then rinse carefully with water and dry in the sun for later use.
1.3 Make good ventilation, so that native chickens can grow in a good air environment. Do a good job of ventilation in chicken coops, especially in winter, not only do a good job of cold preservation, but also pay attention to ventilation. When brooding with coal insulation, doors and windows should not be closed for a long time to prevent poor ventilation. The heating furnace must have an exhaust pipe leading to the outside. When in use, check whether the smoke exhaust pipe is connected tightly and smoothly. Preheat the indoor temperature to 30 ~ 34℃ and check whether it can be kept constant for timely adjustment. Usually, the ground should be paved with clean padding with a thickness of about 3 ~ 5 cm.
1.4 Control the density of chickens and improve the feeding environment of native chickens. The feeding density in the henhouse should not be too high, and it is appropriate to have 30 chickens at 1 ~ 2 weeks, 25 chickens at 3 ~ 4 weeks, 5 ~ 8 weeks 12 chickens, 8 chickens at 9 ~ 18 weeks, and 6 chickens at 19 weeks. Cage chicken house, the cage can not be too crowded, nor can it exceed the standard.
2. Formulate scientific immunization procedures to ensure the healthy breeding of native chickens.
2. 1 Newcastle disease: 7 ~ 10 days old, intravenous injection of vaccine nose, eye drops, subcutaneous or intramuscular injection of oil adjuvant vaccine 0.2ml2 months old with I vaccine immunization, 5 months old with oil adjuvant vaccine immunization. Alternatively, at the age of 7 ~ 10, IV vaccine with nasal drops and eye drops is used, at the age of 1 month, the same immunization as above is used, at the age of 3 months, I vaccine is used, and at the age of 5 months, oil adjuvant vaccine is used.
2.2 Marek's disease in chickens: 1 day, 0.2ml Marek's vaccine was injected subcutaneously or intramuscularly. For breeders, bivalent seedlings and cell-bound seedlings are recommended.
2.3 infectious bursal disease: 10 ~ 14 days old was inoculated with moderately virulent vaccine (the water should contain 2% skim milk, the same below); 25 ~ 30 days old as above. The backup breeders were injected with oil adjuvant vaccine at the age of 5 months and injected with oil adjuvant vaccine again at the age of 10 months to keep the maternal antibody level of offspring high.
2.4 infectious bronchitis: at the age of 8 ~ 10, H 120 vaccine should be given to the nose or eyes first; At the age of 3 weeks, H52 drinking water was used for immunization. When you are 4 months old, you should inject oil seedlings.
2.5 Infectious laryngotracheitis: Live vaccine immunization is only used in sick chicken farms. 20 ~ 24 days old were immunized with eye drops or drinking water respectively, and repeated immunization after 6 weeks.
2.6 Avian influenza: 20-day-old and 120-day-old chickens will enter a period of high incidence of influenza. Six months after the last inoculation, 0.5ml/ feather will be injected intramuscularly and inoculated once.
2.7 viral arthritis: 14 days old was inoculated with attenuated vaccine, and oil adjuvant vaccine was injected 4 months later.
2.8 Chickenpox: attenuated vaccine at 3 weeks old, and secondary immunization after 4 months.
2.9 Infectious encephalomyelitis: Only live vaccine was used in epidemic areas, and attenuated vaccine was used in 10 ~ 12 weeks.
2. 10 infectious rhinitis: 1 month-old immunization, inject 0.5ml of oil adjuvant vaccine to three-month-old children for two doses1ml; 6 months old and three years free (same as before).
2. 1 1 For the prevention and treatment of parasitic diseases in native chickens, coccidiosis is mainly controlled. While improving the feeding environment, strengthening nutrition and disinfection of feeding tools, sulfamethazine can be mixed into drinking water at the ratio of 0. 1% ~ 0.05% for 2 ~ 4 days. 0.05% ~ 0. 1% sulfaquinoxaline was mixed in the feed, and the feed was fed for 2 ~ 3 days, and the drug was stopped for 3 days; 0. 1% sulfadimethoxine was mixed into drinking water for 6 days; Sulfachloropyrazine (three-character coccidia powder), mixed with drinking water according to 0.03%; Baiqiuqing (2.5% solution) is mixed with drinking water according to the dosage of 1L water 1ml, and is free to drink. Ampril hydrochloride or diclazuril can also be used.
3. Establish a strict management system and strengthen the management of native chicken feeding.
In order to strengthen the prevention and control of native chicken diseases, this system is formulated and strictly implemented.
3. 1 Strictly implement the Animal Epidemic Prevention Law of the animal husbandry and veterinary department and the health regulations related to animal epidemic prevention.
3.2 When there are cases of serious infectious diseases or suspected cases of serious infectious diseases at or near the site, isolation and blockade measures shall be taken immediately and reported to the veterinary business department.
3.3 The breeder observes the flocks every day, and after grazing every morning, he goes to remote places such as the corner of the henhouse to see if there are any flocks that live alone and have bad spirits, and immediately destroys them when found. Early prevention, early detection and early treatment of chicken diseases should be achieved. The eliminated chickens are treated harmlessly, that is, buried at a fixed point 3 kilometers away from the breeding ground.
3.4 Regularly check the sanitation and disinfection of chicken houses, utensils, isolation houses and chicken farms. Disinfect the production area once a week, and thoroughly disinfect the work area and surrounding environment once every two weeks. Any other poultry and poultry products shall not be brought into the production area.
3.5 Moldy and expired feed shall not be fed, and drugs or additives prohibited by the state shall not be added to the feed. The feed is best from the ecological feed without pesticide residues such as corn, rice, wheat and soybean produced by farmers, and natural worms such as fruit trees, trees and tea gardens.