It is best to choose woodland, forest farm or orchard without any pollution, and the shade of the forest should be above 70% to prevent the chickens from heatstroke caused by direct sunlight in summer. You can build a henhouse in a plastic shed, or you can transform an old building into a henhouse. Chicken woodland should be sheltered from the wind and the sun, with high and dry terrain, good drainage and sewage conditions, no waterlogging in rainy season, sufficient water sources and convenient transportation. The open space in front of the shed is circled with nylon net, with the height of 1.5~2 meters, which is used as the activity place for native chickens. Put a certain number of sinks and drinking fountains inside and outside the shed. The stocking scale is generally about 500 ~ 2,000 animals per flock/kloc-0, and the all-in and all-out system is adopted. Native chicken breeding technology The native chicken raised in rural areas has good meat quality and fresh taste, and is deeply loved by consumers. However, due to its slow growth rate (only five months before it grows up), there are not many scattered farmers, and the overall economic benefits of farmers are not high, so it is difficult to increase income and become rich. How to change this situation, develop rural native chicken industry, make native chicken grow fast, have good meat quality and raise more households? Using the "new technology of raising chickens with high quality and high efficiency" to cultivate chickens can not only maintain the flavor characteristics of native chickens, but also gain weight quickly (90 ~ 100 days to 1.5 ~ 2.0 kg). Now the technical points are introduced below. The variety is native chicken, that is, native chicken, and some are called grass chicken. Due to the cross between varieties, the color of chicken feathers is "black, red, yellow, white and hemp", and the skin of feet is also yellow, black and grayish white, so the market consumption is different. Therefore, it is necessary to choose varieties suitable for the local consumer market. As far as Guangdong is concerned, Sanhuang Chicken, Xinghua Chicken and Maji are all better varieties. Greenhouse brooding Build a "three-dimensional net bed" brooding greenhouse for professional brooding. Farmers can raise chickens with high survival rate, low risk and easy success (if they can raise chicks, they can start with them). The key points to pay attention to in brooding are: 1. Room temperature: 0 ~ 1 week 35 ~ 32℃, 3 1 ~ 24℃ for 2 ~ 3 weeks, 23 ~ 20℃ for 4 weeks, or 0.5℃ every day after 1 week. 2. Relative humidity: indoor relative humidity shall be maintained at 55% ~ 65%, that is, 60% ~ 65% before 10 day and 55% ~ 60% after 10 day; Keep the indoor air fresh, without pungent and smoky feeling. 3. Supplementary illumination: 23 hours of illumination can be maintained every day for the first 5 days, and then 17 hours of illumination (including natural illumination). 4. Drink water and start eating at the right time. Chickens should start eating and drinking as soon as possible, and constantly feed and drink freely. Add 5% glucose to the first drinking water for two days; On the third day, 0.02% ~ 0.03% potassium permanganate was added to the drinking water. 5. High-density brooding. Before 15, it is 60 ~ 70 chickens /m2, and each batch of chickens is generally 5000 chickens (depending on the needs of farmers for chickens). The combination of "net, bed and scattered" farmers should appropriately transform the henhouse according to the number of their own feeding, requiring the indoor floor to be cement floor, with windows and floor-to-ceiling windows, so that the air circulation and lighting are sufficient, and it is appropriate to use three-dimensional floor to make net beds or henhouses. The number of net beds depends on the number of chickens, which is generally calculated as 45 ~ 20 chickens/m2 (high density in the early stage). The first floor of the net bed is 40 cm above the ground, the height of the net bed is 30 cm, and the distance between the upper and lower floors is 20 cm. The top of the first layer and the second layer of the net bed should be paved with dung bearing plates (all three layers can be used). The framework of the net bed is made of wood or white bamboo, and the periphery and bottom of the net bed are fixed with 1cm× 1cm mesh plastic net. Buckets and drinking fountains are placed on the net bed. Surround the courtyard woodland with nylon net, drill a pile every 2 ~ 3 meters, tie the nylon net to the pile, and tamp the net edge near the ground with soil. The area of the paddock is generally not less than 1.5 m2/chicken, and the wider the better. The thawed chicks bought back (chicks that have passed the brooding period) are raised in net beds at the stage of 1 kg, and then released in the enclosed courtyard woodland after 1 kg (not released in rainy and frosty days). When feeding, feed and water should be fed continuously and freely. Net bed feeding has the advantages of small range of activities, less energy consumption and fast weight gain; Chickens are scattered in the closed courtyard woodland, which can prey on wild weeds and biological insects, change the food structure, and have high meat flavor (keep the taste of original chicken). Only by choosing broiler whole pellet feed with comprehensive nutrition, good palatability and convenient eating, and matching it with other feeds properly, can we ensure the normal growth and development of chickens, accelerate the weight gain and keep the flavor of chickens unchanged, so it is necessary to scientifically match diets. Full-price pellet feed for broilers should be selected during the brooding period. When you start eating, you should soak the feed and rub it with your hands. When the thawed chicken reaches the weight of 1 kg, medium chicken feed should be selected and replaced gradually, not all at once, so as not to cause stress reaction. At the same time, 5% ~ 10% whole grain (or wheat) should be added, and 10% ~ 15% green feed should be given. During the period of backyard free-range, whole chicken feed was selected, and 10% ~ 15% whole grain (or wheat) and 15% ~ 20% green feed were added to the diet. If you only feed the whole feed, the feeding cost is high and the income is not accounted for; Secondly, there is a lot of intramuscular fat in chicken, which is not refreshing to eat; Third, the unique flavor of native chicken is not liked by consumers. Adding appropriate turquoise feed can increase vitamin content, reduce breeding cost and reduce intramuscular fat content of chickens. Disinfection and Immunization It is the key to the success of large-scale chicken raising to do well the immunization, disinfection and epidemic prevention of chickens and prevent the occurrence and spread of infectious diseases. Therefore, immunization, disinfection and epidemic prevention must be done well to reduce the death of chickens and improve the survival rate and commodity rate. The immunization program of local chickens should be based on the nature of production (commercial broilers), and it is best to refer to the immunization program of broilers, that is, 1 day-old chickens should be vaccinated with Marek's vaccine (vaccination is not required when conditions permit, mainly in hatcheries); Chickens aged 6-7 days were immunized with mixed drinking water such as Newcastle disease IV vaccine (or Ⅴ 4 vaccine), bursa of fabricius B87 vaccine and Chuanzhi H 120 vaccine. Chickens aged from 24 to 28 days were immunized once with Newcastle disease vaccine. At the age of 60 days, I was injected with Newcastle disease vaccine again, and I haven't played since. Adding some drugs to drinking water can prevent the occurrence of diseases. Add 0.02% furazolidone and 0.0 1% oxytetracycline, penicillin and gentamicin at the age of 2 ~ 7 days, and use the above drugs repeatedly at the age of 13 ~ 17 days. /kloc-at the age of 0/9 ~ 90 days, anti-coccidiosis drugs such as chlorobenzene and anti-coccidiosis should be added to the feed to repel insects, and the chicken coop should be cleaned every day, and the ground and manure bearing board should be disinfected with quicklime. Every half a month, the compound phenol mixed with water is sprayed to disinfect the outside of the henhouse, and the chickens in the henhouse are disinfected with Baidusha. Thoroughly clean, rinse and disinfect the website after posting; There should always be lime or disinfectant in the disinfection pool at the door of the henhouse, and pay attention to changing it frequently. 1. Chicken: The chicken was born at 40 days. They have rapid growth and development, vigorous metabolism, imperfect body temperature regulation function, difficult to adapt to external temperature changes, poor digestion ability and weak resistance to epidemics. Therefore, we should do the following in our diet. 1, drink water in time. Drink water after the chicken enters the house 12 hours. At the beginning, you can feed some warm boiled water or 5% glucose water to enhance the blood pumping of chicks, relieve stress and facilitate meconium discharge. Drink enough water every day in the future. 2, open food and feed. Eating begins 24 hours after hatching. You can feed broken rice and cooked egg yolks (3 egg yolks per 100 chicks) every 2 hours 1 time. From the third day, feed the compound feed instead. Reference formula (%): corn flour 53.2, wheat bran 8, bean cake powder 22, rapeseed cake powder 6, fish meal 6, bone meal 2, shell powder 2, multivitamins 0.5, salt 0.3, fed 6 times a day, and fed in a strip groove, with unlimited feeding amount.

Second, raise chickens. Chickens aged 4 1 ~ 120 days should be raised and managed separately. 1. Breeding of cockerel. Cocks with a weight of 100 ~ 120 days 1.25 ~ 1.5 kg can be listed. In order to make it reach the slaughter weight on time, it is necessary to supply full-price feed for it to eat. Reference formula (%): corn flour 60, bran 10, bean cake powder 20, fish meal 3, shell powder 6.5, multivitamins 0.3 and salt 0.2. From 70-day-old to the market, local chickens are required to grow fast and gain more meat, so as to be full, eat well, exercise less, sleep more and promote fattening. Some big but not fat ones can be fattened with oil residue and vegetable oil feet. At first, 2% ~ 3% was added to the material, and later it was increased to 5% ~ 8%. 2. Feed the chicks. When the commercial chicken is sold, it will be raised as a rooster. If laying hens are raised, limited feeding should be adopted, and the ratio of protein to energy should be appropriately reduced. Reference formula (%): corn flour 52, bran 16, rice bran 14.5, bean cake powder 10, shell powder 7, multivitamin 0.3 and salt 0.2. Feed it 2 ~ 3 times a day, and feed it less in the morning, so that it can have more activities and eat more natural feed in the barren hills and wasteland, feed it less or even not at noon, and feed it fully before entering the house at night. 120 days old, transferred to the laying hen house under the condition of keeping quiet at night.

Third, laying hens are raised. Increase feed nutrition. It is an important measure to improve the egg production of native chickens by scientifically matching ingredients and improving the protein level in feed. Reference formula (%): corn flour 62, wheat flour 17, bean cake flour 12, fish meal 4, bone meal 1, shell powder 2.6, auxin 0.5, multivitamin 0.5 and salt 0.4. When the laying rate is 50% ~ 60%, each chicken should be fed 105 ~ 1 10g every day. When the laying rate is above 80%, the chickens should be allowed to eat indefinitely. The specific way is: it is not suitable to feed chickens every morning, and they should be allowed to move freely in barren hills and woodlands and eat natural feed. Prepare enough materials and water in the shade shed at noon to let the chickens eat freely. After the sun goes down, take the chickens back to the henhouse to feed them.