Pre-feeding preparation

Cleaning and disinfecting broiler chickens have poor resistance in the chicken stage and are vulnerable to attack by pathogens and viruses in the surrounding environment. They must be thoroughly cleaned and disinfected. The interval between two batches of chickens is 10 days or so, and the cleaning and disinfection procedures are as follows: The chicken excrement or litter is thoroughly cleaned on the 0th to the 2nd day, the walls and the floor are cleaned, and the equipment is soaked with detergent; the 3rd day~ 4 days with a high-pressure water gun to rinse the equipment, the walls of the house and the ground. On the 5th day, chicken house facilities were fully sprayed and disinfected. The walls were brushed with 20% lime milk and the ground was disinfected with 3% caustic soda for 10 hours. The food plate, waterer, bedding, and heating facilities were installed and adjusted in place; Houses closed for ~9 days, in the house environment temperature 20 °C ~ 25 °C, temperature 70% ~ 80%, per cubic meter with 14 grams of potassium permanganate, formaldehyde, 28 ml sealed fumigation 24 hours after opening doors and windows Ventilation and ventilation; the temperature of the angel brooding room reached 33°C~35°C 1 day before the chicken was fed.

The scientific establishment of chicken farms should be built on a high-drying terrain, sunny leeward, well-drained, away from the village and the main road of traffic more than 500 meters away from other chicken farms more than 1,000 meters. The layout of the house is well-designed, the net sewage is separated, the drinking water is clean, and ventilation, cooling, and heating facilities are complete. The house is required to span 6.5 meters to 8 meters in length, depending on the number of broilers. Roof thermal insulation performance is good, every interval of 3 meters to 4 meters to leave a vent to enhance ventilation.

Well-equipped 1 common equipment: For every 50 chicks before 8 days of age, use a 2 kg vacuum drinking machine; for every 60-80 chicks from 9 days of age to slaughter, use a 10 kg vacuum drinker. 0.3-meter-diameter food trays and 60-70-chicken chicks were collected before the 8th day of age; one chick was used for every 30 chicks from 9 days of age to slaughter. Before the age of 8 days, the lamp was installed with a 40 watt bulb per 20 square meters, and the 8-day old bulb was replaced with a 25 watt bulb. Wet and hot thermometers are provided for every 500 chickens. For the warm fire closed, infrared lights per 100 ~ 200 chicken or a warm umbrella by 250 ~ 300 chickens installed.

2 Disinfecting drugs: caustic soda, lavender, white ash, formaldehyde, potassium permanganate, benzalkonium, 100-toxin, peracetic acid, iodophor, etc. are ready for use.

3 Epidemic prevention drugs: Infectious bronchitis H120 + Newcastle disease IV series attenuated vaccines, recombinant avian influenza virus H5 subtype inactivated vaccines, infectious bursa freeze-dried vaccines are prepared according to the number of broilers and properly preserved.

Feed Management Technology

Before ordering to purchase broiler chicks, chicks should have in-depth understanding of production and management status of parent breeder chicken farms and hatcheries, and check the “Production License for Breeding of Livestock and Poultry”, “Catching Certificate for Breeding of Livestock and Poultry”, “Sanitation License for Animal Epidemic Prevention” and Quarantine Inspection. Certification, fully understand the breeder's disease prevention, disease incidence, medication, and treatment. You must choose a hatchery with good reputation to order chicks.

After the hatchlings are dry, chicks are transported to pick healthy chicks of uniform body weight, lively spirits, loud calls, clean feathers, moderate and soft belly size, clean umbilical cords, well-healed, well-groomed, and well-armed chicks. Immediately loaded into the hatching box and transported to the brooding room within 24 hours. During the transportation, the condition of the chicks should be checked every 2 hours. In particular, the ventilation should be guaranteed and the temperature should reach 22°C~25°C. Do a good job of preventing rain and avoid crushing casualties.

The proper temperature control is the key to ensure the survival of the chicks. The chicks grew feathers only when they were 30 days old, and the body temperature regulation function gradually strengthened. Therefore, after the chicks enter the house, the temperature of the sensor bulb and the back of the chicken should reach 35°C~33°C at 0 to 7 days of age; 7 to 14 days of age should reach 33~30°C; 14 days of age. ~21 days of age reached 30 °C ~ 27 °C; 21 days ~ 28 days of age reached 27 °C ~ 24 °C; 28 days to 35 days of age reached 24 °C ~ 21 °C; 35 days ~ 42 days of age reached 21 °C ~ 18 °C. In production practice, observe whether the temperature is appropriate according to the distribution and behaviour of the chicken. If the chicks are well dispersed and move freely, it means that the temperature is normal. If the chicks are crowded and squeezed into the heat source, indicating that the temperature is too low, measures should be taken to increase the temperature, such as increasing the fire, covering the windows and doors. If the chicks have wings that open and wheezing, indicating that the temperature is too high, ventilation should be strengthened, cold water should be supplied, and the number of chicken sprays should be increased.

Humidity-controlled chicks had a suitable humidity of 60%-70% at 7 days and a humidity of 50%-60% after 14 days of age. Generally, the temperature inside the house is high before 2 days old, and a lot of watering is required to achieve humidification. As the age increases, there will be an increase in the humidity of the shed, which should be properly ventilated, clear the excrement on time, keep the hen house dry, and reduce the humidity.

Light control to facilitate the discovery of drinking fountains and feeds for newborn chicks. In the first two days, 24-hour light is applied. Light intensity is set to a 40 watt bulb per 20 square meters, and then the light is reduced to 16 hours in 7 days to 10 days. Light intensity is set at 25 watts per 20 square meters until slaughter.

Drinking water management After the chicks hatch, they constantly lose water. Therefore, when the chicks reach the brooding house, they should drink water first. The water temperature of chicks before 3 days of age is between 20°C~25°C, add 5%~8% glucose water, brown sugar water or drinking water into electrolytic cubes in drinking water, add antibacterial drugs to weak chicks, drinking water every 6 hours~ Change it once every 8 hours. 4th to 7th day of age use cool boiled water, and then use tap water or deep well water to drink directly. If the chicks drink water indoors, it should not exceed 3 days.

Feed management chicks usually start 24 hours to 26 hours after hatching or 2 hours to 3 hours after drinking. The feed is preferably made from high quality broiler pellets. 1 to 28 days of age with broilers in the early material, protein reached 21% to 22%; 29 days to 54 days of age with broilers, protein reached 19% to 20%. From 1 day to 3 days of age, feed once every 2 hours; from 4 days to 12 days of age, feed every 3 hours to 5 hours; from 22 days to slaughter, feed every 6 hours to 8 hours. Adhere to less feeding Tim to reduce waste, immediately remove leftovers to prevent spoilage. In order to improve the resistance of chicken body, according to the broiler age stage, Bacillus Peptide zinc 10g~100g or tylosin 4g~40g can be added to each ton of feed. In the broiler group, transfer group, epidemic prevention, weight measurement when adding a multi-dimensional 200 grams per ton of feed to reduce stress. In feeding, in particular to increase the calcium, manganese, VD3, VE content in the feed to promote growth.

Density control of the appropriate density is an effective measure to increase chick uniformity. When raising the ground on the ground or on the Internet, 40 to 50 eggs per square meter are raised at 1 week of age, 20 to 30 eggs per square meter at the age of 1 week to 3 weeks, and 3 to 6 weeks old per square meter. Feed 18 to 24 animals; 6 weeks old to slaughter 12 to 15 eggs per square meter. At the age of 1 week, 60 to 80 eggs per square meter are raised at the age of 1 week, 50 to 60 eggs per square meter at the age of 1 week to 3 weeks, and 30 eggs per square meter at the age of 3 weeks to 6 weeks. 40; more than 6 weeks old, feed 20-25 per square meter.

Anti-epidemic disinfection technology

Preventing and controlling the occurrence of diseases is an important condition for increasing the slaughter rate and raising efficiency of commercial broilers. Therefore, immunization and disinfection prevention are particularly critical.

Eight days of age and 20 days of age immunization were used to inoculate intranasally with two groups of infectious bronchitis H120 + Newcastle disease IV series attenuated vaccines; 14-day-old and 24-day-old drinking water were immunized with infectious bursa freeze-dried vaccines. 1 to 2 heads; 30 days old muscle or subcutaneous injection of recombinant influenza virus H5 subtype bivalent inactivated vaccine 0.3 ml. Before drinking immunity, wash the water dispenser with clean water first. Do not disinfect the drinking water in the drinking water for three days before and after immunization, or disinfect the chicken. Diluted vaccine with cold water, can not use additives, especially disinfectants and chlorine-containing water. The amount of drinking water is calculated on a 45-ml-per-bowl basis to ensure that it is evenly consumed within 2 hours. Normally after drinking water in the morning to take immunity, and add 2 grams of skim milk powder per liter of water, the best immune effect. On the day of immunization and three days afterwards, the temperature of Sherwin 1°C~2°C should be appropriately increased. After 7 days to 10 days after each immunization, antibody testing was performed and the required timely remedy was not achieved.

Disinfection to prevent vehicles from entering and exiting the chicken farm with 3% to 5% of the Soviet Union to spray children; add 2% to 4% of caustic soda solution in the disinfection tank, change once a week; road cleaning every day, sprinkle white ash once a week; every three days with chicken disinfection once , commonly used 0.1% benzalkonium bromide or 100 poisoning, 0.2% ~ 0.3% peracetic acid, iodine preparations are used interchangeably, now with the current distribution; drinking fountains washed with water once a day ~ 2 times, every 2 days ~ 3 days with 0.05 100% poisonous cleaning and disinfection.

Drugs to prevent 1 day old ~ 35 days of age with 0.02% furazolidone + 0.1% oxytetracycline mixed spices, used in conjunction for 7 days, stop 3 days to 4 days, interval, to prevent salmonellosis, E. coli disease. Add 10 grams of maduramycin or 40 grams to 60 grams of salinomycin to prevent coccidiosis from 10 days to 15 days of feed per day. Use it for 7 days, stop for 7 days, and then use for 7 days. 20 days to 27 days of age with 0.1% tylosin drinking water for 7 days or 0.06% ofloxacin drinking for 3 days to prevent mycoticosis. The use of broilers was stopped 10 days to 14 days before slaughter, to avoid drug residues and improve meat quality.

Make production records

In order to accurately grasp the growth of broilers, it is convenient for production management supervision and aquaculture benefit accounting to provide a reference for future breeding. Every day should fill in the chicken house temperature and humidity changes regularly, do chicken drinking water, feed consumption, material consumption, replacement time, item number, disinfection, immunization, inventory, disease, weakness, residual, disease, medication, treatment, necropsy, The records of the harmless treatment of sick and dead chickens were regularly monitored weekly by 2% of the birds on an empty stomach. The behaviors of the chickens, feathers, feces, and breathing were observed every day. Comprehensive analysis was conducted to identify problems and timely diagnosis and treatment. deal with.

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