Wanyuan old courtyard black chicken skin, black hair, containing the body's protein, calcium, phosphorus, iron, zinc, selenium, a variety of vitamins and unsaturated fatty acids. The cock warms up the yang, and the hen is yin and blood. The old black chicken has been carefully cooked, and its tender and tender color naturally flows into the heart, and the food is also good!

Quality characteristics The old black chicken is named after the main farm in Sichuan Wanyuan. It is a combination of meat and eggs. The plumage is black with emerald green, black skin and white skin. The eggshell is light brown. A few blues. Named by the Chinese Academy of Sciences: "The world is rare, China is unique, and Wanyuan is unique", and it is known as the source of life. The old black chicken body is tall, muscular, strong, well-developed, cold-resistant, strong in disease resistance, and produces green shell eggs. It is a combination of meat and eggs. It is called black pearl, egg-like emerald, egg. The high content is called "human egg" by experts. This variety is unique to Wanyuan, only in Sichuan, and rare in the country. The main producing areas and ecological conditions The production area belongs to the middle mountain area of ​​Daba Mountain, with an altitude of 500-2300 meters, and the climate changes vertically. The annual average temperature is 14.2-15.4 °C, the frost-free period is 196-254 days, the precipitation is 894-1673 mm, and the relative humidity is 64.5-73.0%. Agricultural production conditions are poor, the main crops are corn, potatoes, rice, wheat, oats, sweet potatoes and other miscellaneous grains. Body appearance The old black chicken is larger in size, the shape is rectangular, and the skin is white and black. The cock is tall, and the cock of the bean crown is quite similar to the cockfighting. It is tall and aggressive, and the feathers are mostly black and red. The comb feathers, feathers and feathers are black, red and shiny. A few are all black, about 20%. The hen feathers are black with emerald green luster, and the hen's neck feathers are red-rimmed black feathers. The skin of the face is red or purple, the corners are black, the iridescence is orange-red; the crown is a single crown and a bean crown. The ear leaves are red or purple, and the cavity is black with no feathers. The effect of health care is that the chicken meat is delicate and fragrant, and has a delicious taste. It has the medicinal health effect. The content of amino acids, trace elements, black pigment and purple pigment is the same as that of the black-bone chicken by the Central Laboratory of the Provincial Academy of Agricultural Sciences; Years of research results of the Provincial Academy of Animal Science: stable genetic performance, eggshell strength and thickness is significantly higher than other chicken species, egg quality is 1.1 percentage points higher than other chicken species, crude fat is 1. 2 percentage points higher. After various tests by Sichuan Agricultural University, the total content of fresh amino acids in the 16 old black chickens was 22.89%, and the total content of 16 kinds of amino acids in the air-dried samples was 78.22%. The crude protein and crude fat content were 24.02% and 0.84%, especially the content of selenium is 0.09%/mg. The measurement results show that the content of amino acid, crude protein, crude fat, calcium and phosphorus in the old hospital is higher than that of the chicken, and it is rich in selenium, with high nutritional value and broad development prospects. . Direction of use The appearance of black chicken in the old courtyard is relatively consistent, close to the meat type chicken, and hereditary stability. Early fattening should be carried out with the characteristics of early growth, high meat yield and large egg size. Some chickens produce blue-shelled eggs, a rare economic trait that has been shown to be a genetic trait. Attention should be paid to the role of its rare genes in breeding. Honor certification In 1982, it was listed as an excellent variety in Sichuan Province; in 1983, it was listed as a local fine variety. The selenium content and amino acid content of black chicken and eggs in the old courtyard are much higher than those of local chickens and breeders. The old black chicken passed the organic product quality certification and was protected by the agricultural product geographical indication certification of the Ministry of Agriculture. The certificate of origin of the “Wanyuan Old House Black Chicken (Egg)” was approved by the Trademark Office of the State Administration for Industry and Commerce.

Old hospital black chicken quality technical requirements (a) variety. Local black chicken breed. (2) Conditions of origin. The protected area is between 600m and 1400m above sea level, and the soil pH is 6.5 to 7.5. The soil selenium content is from 0.05 μg/g to 1.74 μg/g. (3) Feed. During the brooding period, the whole-price compound feed is fed, and the breeding period is mainly fed with corn, rice, wheat, soybean (sauted), miscellaneous grains and other feeds. (4) Feeding management. 1. 2. 3. Environmental and safety requirements: The prevention and control of breeding environment and epidemic diseases must comply with relevant state regulations and must not pollute the environment. (5) Slaughter. Stop water for 3 hours before slaughter. (6) Quality characteristics. 1. Black, enamel, and enamel are black or yellowish white. 2.

Apply to：
Producers within the scope of black chicken production in the old courtyard may apply to the Quality and Technical Supervision Bureau of Wanyuan City, Sichuan Province for the use of the “Special Mark for Geographical Indication Products”, which is reviewed by the Sichuan Provincial Bureau of Quality and Technical Supervision and reported to the AQSIQ for approval. Announced. The statutory testing agency for black chicken in the old courtyard is designated by the Sichuan Provincial Bureau of Quality and Technical Supervision.