Lueyang Wuji is the best gift given by Qinling to human beings. It is stocked on the hillside, self-eaten Cordyceps, both medicine and food. It is the benchmark of pure natural black food. Lueyang black-bone chicken has a long body, wide and deep chest, long legs, feathers in the form of flakes, black and white, yellow and hemp in feather color, mostly black feathers. The black feather chicken saddle back feather is dark blue and shiny. Lueyang Wuji is a meat-type chicken with strong disease resistance and fast growth. It has the characteristics of “six blacks” (upi, black-legged, black-toed, black-spotted, black-tipped, and black-crowned). The egg is large, the reddish part of the eggshell is slightly green, the meat is tender and delicious, the nutritional value is high, and it has medicinal and therapeutic properties.

Lueyang black-bone chicken is rich in nutrients, rich in vitamins and trace elements such as iron, copper and zinc. It contains 8 kinds of 20 kinds of amino acids, and the content of essential amino acids is very high. The cholesterol content is very low, which is tonic. Good food, regular consumption can delay aging, strong bones and strong bones. Lueyang black-bone chicken has the characteristics of six-ended black, namely: "Ukrainian crown, black scorpion, black tongue, black skin, black leg, black toe". Its meat value and medicinal value are very high, has become a daily table for people. It is delicious and highly trusted by consumers, especially melanin which is rich in nourishing medicinal value. It has nourishing yin, nourishing kidney, nourishing blood, adding essence, benefiting liver, reducing fever and tonic. It can regulate human immunity. Functional and anti-aging. Since ancient times, it has been known as the “medicine chicken”. The body of Lueyang Wuji is close to the square, with the characteristics of the "six-end black" of the black-crowned, black-billed, black-toed, black-tipped and black-skinned, so it is also called "six-point black". The cock is tall and tall, with thick bones and legs. Thick and long, muscular, wide and deep, short and downward curved, usually a single crown 6-7 teeth, large meat, crown and meat are black or purple, iridescent chestnut, high neck, keel slightly Protrusion, chest wide and deep. The wings are wide, the tail feathers are developed, and the Yao Yu is towering. Four toes, the toes open wide. Beautiful and full of male. The feather color is black, red and white, mainly black. Sexual maturity early. The hen has a small body shape, a long sputum, a short neck is not high, a fluffy neck, and two wings attached to the body side. The whole body is thick and strong, and the tail feathers are neatly upturned, or fan-shaped or bergamot-shaped, and the coat color is mainly black. The average production rate is seven or eight months old.

Technical requirements for quality of Lueyang Wuji (1) Variety. Lueyang local traditional black-bone chicken breed. (2) Feeding environment. Site selection: The feeding site requires a small slope, dry, drainage, ventilation, well-lit gardens, orchards, hillsides, sparse forests, pastures, water supply is adequate and sanitary, and the environment is quiet. There are no large-scale chemical plants, mines and other pollution sources within 3km of the breeding grounds, and at least 1km away from other livestock farms. (3) Feeding management. Feeding is divided into two stages (brooding period, breeding period). 1. Brooding period (0 to 6 weeks old): (1) Chick source: Breeder chickens should be derived from breeder farms (households) with “livestock and poultry production and operation license” in the administrative area of ​​Lueyang County, and should be consistent with Appearance characteristics of Lueyang black-bone chicks. (2) Temperature: The temperature of 0 to 3 days is required to reach 36 ° C to 38 ° C, and then drop by about 2 ° C per week until the same as the natural room temperature of about 20 ° C. (3) Humidity: The indoor relative humidity should be controlled at 50% to 60% for the best, and the ground should be kept dry and clean. (4) Illumination: It is mainly based on natural lighting, supplemented by artificial lighting. 24 hours of light from 0 to 3 weeks old, 18 hours of light per day after 3 weeks, and then reduced by half an hour every week, gradually approaching natural light, and the light intensity is 4 watts/m2. (5) Density: less than 40/m2 for 1 to 4 weeks old and less than 25/m2 for 5 to 6 weeks old. (6) Drinking water: The drinking water of chicks should be kept clean and sufficient. (7) Feeding: You can start eating 2 hours after drinking water. The cooked foodstuffs are selected from steamed yellow corn granules or yellow millet granules. After 2 days, they are mixed with broiled chicken full-price granules and fed for 4 to 5 times a day. (8) Brooding time: The brooding time in the brooding room is generally about 50 days in winter, about 40 days in spring and autumn, and about 30 days in summer. 2. Breeding period (7 weeks old to slaughter): (1) Feeding method: combination of stocking and feeding. The size of each group is 150 to 200, and the stocking density should be less than 200/667m2. The professional farms (households) can be raised on the ground in the house, and the density is 7 to 12 weeks old and less than 12/m2. Less than 8/m2 after 13 weeks of age, the whole period of stocking is not less than 80 days. (2) Drinking water: spring water, stream water, river water and groundwater in Lueyang County, to maintain adequate drinking water. (3) Feed: Mainly based on natural feed, supplemented with compound feed. Natural feed: corn, wheat, rice and other miscellaneous grains, weeds, pastures, insects, etc., combined with feed, crude protein 16 to 18%, metabolizable energy 11.3 to 11.7 MJ / kg. (4) Feeding method: During the day, free-range, let it freely eat natural feed such as weeds and insects. In the morning and evening (before stocking in the morning and returning to the pasture at night), feed a small amount of local raw grain (salt, corn, wheat and rice) Mixed grains) and green and juicy feed. The house feed is combined with local raw food and compound feed, and fed three to four times a day. (5) Delivery time: 150 to 180 days old. (4) Prevention and treatment of epidemic diseases. Taking prevention as the mainstay, treatment as a supplement, prevention and control combined with disease prevention and control measures. 1. Immunization prevention: According to the immunization program, the epidemic (bacteria) seedlings such as Marek's, Newcastle disease, chicken pox, bursa, bird flu, and cholera are regularly inoculated. 2. Drug prevention: 2 to 10 days old with drugs, drinking water to prevent chick white peony; 10 days old with grams of ball powder and other drugs to prevent coccidiosis; 2 weeks old with garlic to prevent digestive tract diseases. Mix yeast powder or probiotics in the feed to help digestion and improve disease resistance. 3. Treatment of diseases: observe the status of the flock at any time. For the sick chickens, early detection, early isolation, early diagnosis and early treatment should be performed. Low toxicity, high efficiency and low residual veterinary drugs should be used. 4. Environmental sanitation: The house should be kept clean, dry and hygienic, disinfected regularly, and the manure should be cleaned regularly. The dead chickens should be incinerated and deeply buried, and the chicken manure and other wastes should be collected and fermented. 5. It is forbidden to use veterinary drugs and feed additives prohibited by the national veterinary drugs and feed additive management regulations. If there is a period of suspension, the provisions of the period of inactivity should be strictly enforced. It is forbidden to use feeds containing hormones, molds and contaminated by toxic and hazardous substances. (5) Quality characteristics. 1. Live chicken features: (1) Body appearance features: long body, wide and deep chest, long legs, adult chicken body near square, with characteristics of black skin, black legs, black toe, black scorpion, crown and The meat is black or purple. The feathers are in the form of flakes, and the feathers are black, hemp, yellow and white, and most of them are black feathers. Most of the iridescence is golden yellow and a little brown. The black feather chicken saddle back feather is dark blue and shiny. (2) Weight: 150 to 180 days old, the weight of the cock is not less than 1.75 kg, and the meat is fresh and tender when the hen is not less than 1.43 kg, which is a timely market. 2. Meat quality characteristics: (1) Carcass sensation: After the bloodletting to the feathers, the carcass of the traditional black-bone chicken is black, the chest muscles are grayish white, the leg muscles are blue-purple, and the thoracic peritoneum, mesentery and cecum are black. (2) Slaughter performance index: 150-180 day old slaughter performance index unit: gram, % sex s live heavy weight slaughter rate semi-net weight 全 full net 膛 heavy abdominal fat rate leg muscle heavy chest muscle weight wings heavy s1750.8293.21548 .3241.688.62.21427.1241.71172.5196.400281.466.9200.635.4164.827.7母s s1425.8161.01249.2180.387.42.91139.6164.3949.6133.019.411.4213.525.6172.821.59133.823.2 (3) Taste: After stewing, the flesh is connected, the meat is tender and tender. It has a strong aroma, a delicious taste, no astringency and a long aftertaste. (4) physical and chemical indicators of meat: pH 6.52 ± 0.18; water retention 66.38 ± 5.13; serine ≥ 950mg / 100g; valine ≥ 920mg / 100g; valine ≥ 1400mg / 100g; palmitic acid ≥ 2200mg / 100g. 3. Safety requirements: Product safety indicators must meet the relevant regulations of the state for similar products.

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Producers within the scope of protection of the geographical indication products of Lueyang Wuji may apply to the “Xiaoxian County” in Shaanxi for the use of “Special Marks for Geographical Indication Products”, which shall be approved by the General Administration of Quality Supervision, Inspection and Quarantine.