What knowledge does the new breeder raise and raise?
Several weeks before the new layer is laid, it is the transitional phase from the growing period to the laying period. At this stage, a series of work, such as group migration, selection and elimination, immunization, feed replacement, and increased lighting, will cause great stress on the chickens. Therefore, the hens have severe physiological changes, sensitivity, weak adaptability, and disease resistance. Poor performance, if not properly managed, can easily affect egg production performance. To this end, we must strengthen the management of feeding from the following aspects. First, prepare for basket The chicken house and equipment have a great influence on the health and production of laying hens. Before going to the cage, the chicken house and equipment shall be inspected and the feeding system, drinking water system, power supply lighting system, ventilation system, drainage system and cages, cages and other equipment shall be inspected carefully. Any abnormalities shall be promptly repaired; Houses and equipment are cleaned and disinfected. The steps are to clean the floor of the house, the excrement on the roof, walls, dirt, and dirt on the equipment. Rinse the house and equipment with high-pressure water, and spray the disinfectant solution after it is dry. Disinfecting, but also disinfecting the items used. In addition, prepare the necessary utensils, medicines, equipment, record forms and feed, and arrange the feeding personnel. Second, timely transfer to the cage 1. Into the basket age: In the cage before the 16 to 17 weeks of age, so that the new hens have a period of time before opening to familiarize with and adapt to the environment, form a harmonious group, and have enough time for immunization and other work. If the cage is too late, the production time will be postponed and the egg production rate will be affected. The hens that have been put into production may also be discontinued due to intense stress caused by the transfer group. Even some chickens may cause yolk peritonitis and increase the number of dead birds. . 2. Election and Elimination: When entering cages, we must remove small-sized, thin chickens, and non-feeding residual chickens according to the variety requirements, and choose high-quality chickens that are spirited, healthy, and of suitable weight. 3. Classification into the cage: due to genetic and feeding management and other factors, there will still be some small chickens and larger chickens in the flock. If they are all eliminated, they will inevitably increase the cost. The cages in the egg house cannot be fully utilized, so When cages are kept, smaller and larger chickens are placed in different cages and special measures are taken to strengthen management and promote uniformity and tidyness. If the chicken is placed in a warm, sunny south-middle cage, it is appropriate to increase nutrition and promote its growth and development; over large chickens should be properly limited. According to the number of chickens accommodated in the cages, a sufficient number of cages per cage is provided at a time to avoid caged chickens that have entered the cage before they are bullied. Third, pay attention to immunization Before immunization, immunization is required. This immunization is very important to prevent the occurrence of epidemic diseases during the laying period. The immunization procedure is reasonable and in line with the actual situation of the field; the vaccine source is reliable, well-kept, and quality assured; the vaccination route is appropriate, the operation is correct, and the dose is accurate. After inoculation, the effect of inoculation should be checked, and if necessary, antibody monitoring should be carried out to ensure the effectiveness of the immunization so that the birds have sufficient antibody levels to prevent the occurrence of the disease. Fourth, strengthen pest control work Before starting production, we must do a good job of deworming. For 110-130 days old chickens, use 20-40 mg levamisole or 200-300 mg per carcass for each kilogram of body weight, mix and feed once a day for 2 days to repel aphids; Sulfur Dichloride per kg body weight Phenol 100 ~ 200 mg, spices fed once a day, once every 2 days to drive maggots; coccidial oocysts serious pollution, after the cage with anticoccidial drugs for 5 to 6 days. Fifth, create a suitable environment The optimal temperature for laying hens is 15 to 25°C and the relative humidity is 60 to 65%. Temperature, humidity is too high or too low are not conducive to egg production. Large temperature difference in the fall, during the day to pay attention to cooling, night should pay attention to cold and warm, but also pay attention to adjust the temperature and humidity at any time. Inside and outside the sheds should be cleaned every day to remove excrement and reduce ammonia odor; good ventilation and fresh air should be maintained. Pick eggs 3 to 4 times a day to reduce damage. Six, pay attention to lighting control Illumination has a great influence on the reproductive function of chickens. It controls the illumination of laying hens to stimulate and maintain egg balance. In addition, the light can regulate the sexual maturity of the reserve chickens and make the hens produce neat, so the lighting control before and after the production is critical. Modern high-yield hybrid products have already had the ability to start production ahead of schedule. Proper early lighting stimulation will make new hens start their production in advance, which will help reduce the cost of raising the animals. Birds with a body weight that meets or is slightly larger than the standard body weight can increase the number of hours of illumination from 16 to 17 weeks to 13 hours, and then increase it by 20 minutes per week until the light hours reach 16 hours. Light stimulation should begin at 18 to 20 weeks of age. Light hours should be gradually increased, if the sudden increase in the length of light is too long, easy to cause rectal prolapse; light intensity should be appropriate, should not be too strong or too weak, too strong and easy to produce phlegm, too weak will not achieve a stimulating effect. Sealed breeding new hens, due to the light intensity during the breeding period is too weak, light intensity before and after opening to 10 to 15 lux is appropriate, open the breeding of new hens, breeding period is affected by natural light, strong light, open production Before and after the light intensity is generally maintained in the range of 15 to 20 lux, otherwise the lighting effect is poor. Seven, strengthen feeding management Feeding before opening will not only affect the increase of egg production rate and the duration of egg production peak, but also affect the rate of death. 1. Change the feed in due course. The calcium deposition ability in the bones is strongest in the first 2 weeks before the start of production. In order to increase the hen production, reduce the egg breakage, and reduce the occurrence of fatigue in laying hens, the calcium content in the diet should be increased from 0.9% from 17 weeks of age. Increase to 2.5%; when the egg production rate reaches 20 to 30%, replace the egg-laying diet with 3.5% calcium. 2. Ensure feed intake. Before starting production, free food intake should be resumed to allow chickens to feed, ensure balanced nutrition, and increase the egg production rate. Every 100 chickens are fed weekly with 500-1000 g of sand. 3. Ensure drinking water. At the time of production, the chicken body has a strong metabolism and needs a large amount of water, so it is necessary to ensure sufficient drinking water. Insufficient drinking water will affect the rate of egg production, and there will be more prolapse of the anus. In the morning, you should drink after drinking water, drink cold water at the beginning of autumn, and drink warm water at the end of autumn. 4. The density is moderate. No matter how caged or raised, the density should not be too high, and each chicken should occupy about 10 cm of slots. VIII. Minimize Stress 1. Reasonably arrange working hours and reduce stress. Transit cages and immunization schedules are best arranged in the evening, catching chickens, transporting chickens and entering cages are lighter. Before entering the cage, add material to the feeding trough of the layer of laying hens, and inject water into the trough, and maintain suitable light intensity. After the broilers enter the cage, drink the water immediately, eat the ingredients, and familiarize themselves with the environment as soon as possible. Keep working procedures stable and change the feed when there is a transition period. 2. Use anti-stress additives. There are many stress factors before birth, and anti-stress agents can be added to feed or drinking water to relieve stress. Vitamin C, instant multi-dimensional, and fumarate are commonly used. Nine, strengthen health and epidemic prevention After being basketed, the chicken is unfamiliar with the environment and, in combination with a series of management procedures, causes greater stress to the chicken. With the increase of egg production rate, chicken body metabolism is strong, resistance is poor, and is vulnerable to pathogenic invasion. Therefore, epidemic prevention and health work must be carried out. It is forbidden for outsiders to enter the breeding area and sheds, and the keeper must be sterilized before entering; keep the environment of the shed, drinking water, and feed hygiene; sterilize chickens inside and outside the chicken farm regularly to reduce the occurrence of diseases. In addition, pay attention to the use of some antibacterials and Chinese herbal medicines to prevent the occurrence of E. coli and mycoplasma diseases. According to the law of occurrence of the epidemic, before the chicken is open for 3-4 weeks, that is, around 120 days of age, do a good job of vaccination against the vaccine and dispel parasites. After the start of production, it is not appropriate to carry out vaccination and deworming work, otherwise it will affect the production of eggs. Ten, pay attention to careful observation Pay attention to the observation of the chicken's intake, breathing, droppings, and egg production rate, and find that the problem is solved in time. Before and after the chicken is opened, the physiological changes are severe, sensitive and uneasy, and neck-hanging, squatting and the like are prone to occur. They should be patrolled and detected and treated early to reduce death. Observe and observe the timely detection of anal chickens, anal fistula chickens, bullied chickens, and sickly disabled chickens.
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