Production Safety Management system of Chicken Farm

The main contents of the production safety management system for chicken farms include: technical training, henhouse cleaning and preparation, brooding, temperature control, ventilation, humidity, density, feeding, drinking water, light control, daily management, treatment of sick and dead chickens, disease treatment, layer elimination and daily records, etc., the following is a detailed introduction.

Technical training

The chicken farm should reasonably allocate technical and production management personnel in accordance with the requirements of the NY5043 "pollution-free Food-laying Hens feeding and Management guidelines", and all personnel should implement the certificate (training certificate) system. The field should regularly provide continuous training and education to the production and technical personnel on the knowledge of pollution-free food production and management, so as to effectively improve the quality of the personnel.

Cleaning and preparation of chicken coop

The chicken farm adopts the system of "all in and all out". When a laying hen is eliminated, all equipment (including feces, sick and disabled chickens and all kinds of utensils, etc.) in the henhouse should be cleaned out first, and then the henhouse and equipment should be washed and sterilized. After 14 days of the empty house, put all the clean utensils into the chicken coop, arrange them as required, and install the feeding equipment and drinking water equipment. For the automatic drinking water system (including filter, water tank and waterline, etc.), use iodine tincture, permethrin, chlorine preparation and other immersion disinfection, then rinse with clean water and wait for use.

Pick up the brood

Two days before picking up the chicks, the chicken farm should warm the brooding house so that the temperature reaches 33-35 ℃, and then fill the drinking fountain with water, which can be filled with 3% glucose. When the chicks arrive, they will be provided with drinking water and will be fed 2 hours later.

Temperature control

The temperature in the henhouse should be kept at 33-35 ℃ in the first week, then decreased by 2-3 ℃ per week, and the temperature should be controlled at about 20 ℃ after 21 days. The exact temperature of the chicken house should depend on the activity of the flock, and the cooling process should not be too fast, so as not to stimulate the chicks, and the temperature difference between day and night should be controlled within 1 ℃.

Ventilation

It is necessary to ensure that the chicken farm is regularly ventilated to remove harmful gases. It is strictly forbidden to use coal stoves for heating in winter to prevent carbon monoxide poisoning. Ventilation should be done step by step. The windows should be small in the morning and evening, big in the heat at noon, small in the wind and large in the absence of wind. When entering the henhouse and feeling the pungent smell, you should open the ventilation in time and pay attention to ensuring the indoor temperature at the same time.

In the early stage of feeding, it is necessary to give priority to heat preservation with consideration of ventilation, while in the later stage, ventilation and heat preservation should be taken into account.

Humidity

Chicken farms should often take chickens for disinfection or sprinkle water in the first 7 days to increase humidity, and the relative humidity should be kept at about 70%. Try to keep the chicken coop dry after 8 days, and the relative humidity is controlled below 50%. In winter, when the air is too dry, spray disinfection should be used to increase humidity.

Density

In the early stage of brooding, the breeding density can be higher, with the growth of chickens, it is necessary to often expand the flock to ensure that the flock can move. Generally, 1-day-old, 50 / m2; 20-day-old, 30 / m2; 40-day-old, 8 / m2; 120-day-old, concentrated on the cage (three-story full-ladder standard layer cage).

Feed

The feed used in the chicken farm should meet the requirements of NY5042 "pollution-free Food-Feed guidelines for laying Hens". Multi-vitamin additives can be mixed into the feed, but additional drugs or pharmaceutical feed additives are not allowed. Under special circumstances, the added drugs and drug feed additives must meet the requirements of the NY5040 "guidelines for the use of Veterinary drugs for pollution-free Food-raising layers". During the laying period, the drug withdrawal period shall be strictly enforced, and feed containing drugs and drug additives shall not be allowed. Chicken feed should be determined according to needs to ensure that the feed is fresh and hygienic. Breeders should remove the scattered feed and padding materials in the feeding system at any time, and must not feed the chickens with moldy, spoiled, insect-bearing feed, etc.

Drinking water

All chicken farms should adopt a circulating free drinking water system. Warm water is provided for the first 10 days, and the water temperature is 18-20 ℃. Breeders should scrub and disinfect drinking water equipment every day, and the disinfectants used should choose disinfectants such as permethrin, bleach, halogen and other disinfectants that conform to the provisions of the Veterinary Pharmacopoeia of the people's Republic of China. After disinfection, rinse the drinking water equipment thoroughly with clean water. Glucose or electrolyte multivitamin additives can be properly added to drinking water, but drugs and drug feed additives can not be added. Under specific circumstances, the added drug feed and drug additives must meet the requirements of the NY5040 guidelines for the use of Veterinary drugs in pollution-free Food-raising layers.

Illumination control

The henhouse was illuminated 24 hours a day in the first 30 days and 23 hours a day afterwards. Light intensity: the light intensity is 20 lux or 5.4 watts / square meter in the first 30 days. After 30 days, the light intensity can be reduced to 2.5-5 lux or 6-1.2 watts / square meter by reducing the power or number of bulbs. It is necessary to select multiple low-power light bulbs as far as possible to ensure uniform light, and to test the light intensity regularly.

Daily management

Breeding and management personnel should routinely check one place every day: check hygiene to see the mess inside and outside the chicken house; check ventilation to see the ventilation in the chicken farm; check disinfection to check the disinfectant in the disinfection pool and disinfection basin to avoid expiration; check the dynamics of the flock to see whether the chicken's spirit and feeding are normal; check feed freshness, etc.; check egg production, check egg size, color, etc. One, that is, timely innocuous treatment of illness and death, elimination of chickens, and so on.

Treatment of sick and dead chickens

When an epidemic disease occurs or is suspected to occur in a chicken farm, the following measures should be taken according to the Animal epidemic Prevention Law: timely report to the resident official veterinarian for diagnosis, and report the epidemic situation to the local animal epidemic prevention supervision agency in accordance with the regulations. If a highly pathogenic disease is diagnosed, it is necessary to cooperate with the animal epidemic prevention supervision agency to implement strict isolation and culling measures for the chickens. When Newcastle disease, tuberculosis and other epidemic diseases occur, the flocks should be cleared and purified; under the supervision of the official veterinarian, the carcasses of dead chickens or eliminated chickens shall be treated innocuously in accordance with the requirements of the GB16548 "regulations for harmless treatment of carcasses of livestock and poultry diseases and their products", and chicken sheds and related venues and appliances shall be strictly disinfected.

Disease treatment

When the disease of chicken flock needs to be treated, the treatment drugs in accordance with the NY5040 "guidelines for the use of Veterinary drugs for pollution-free Food-raising layers" should be selected under the guidance of veterinary technicians. Especially during the laying period, it is strictly forbidden to abuse drugs at will or increase the dose, resulting in excessive drug residues and affecting the quality and safety of egg products.

Layer elimination

The eliminated laying hens shall stop feeding feed six hours before sale, apply for origin quarantine to the local animal epidemic prevention supervision agency, and list and trade on the strength of the "origin quarantine certificate" if they are qualified for quarantine; if they are unqualified, they shall be treated innocuously in time to prevent the spread of the epidemic. Transport vehicles should be clean and free of chicken droppings or chemical discards, and shall be transported on the strength of the Animal Quarantine Certificate and the vehicle Disinfection Certificate.

Daily record

In the chicken farm, it is necessary to establish and improve the corresponding file record system, such as the date, quantity and source of brooding, production performance, breeders, daily production records, such as date, age, number of deaths, cause of death, number of cages, temperature, humidity, quarantine prevention, immunity, disinfection, medication, name of feed and additives, feed quantity, health status of chickens, laying date, quantity and quality. The whole process (data), such as the date of sale, quantity and unit of purchase, shall be recorded in the file timely and accurately. Records and archives should be uniformly archived and kept for more than two years.