Medicinal value of black chicken

Since the rise of "black food" craze in the world in the early 1990s, natural black food and its products have sprung up in the market. Black chicken is favored by consumers for its unique medicinal, nourishing, health care value and rich and comprehensive nutritional value. Good varieties can show higher production performance, but also can obtain good economic benefits. According to textual research, the formation of black chicken breeds has a history of at least 700 years. Because of the vast land and diverse environmental conditions in our country, the purpose of breeding is different and the feeding conditions are different. Therefore, black chickens have formed different types of local breeds. The main breeds are Taihe chicken, Yugan black chicken, Jiangshan white black chicken, Xuefeng black bone chicken, Jinyang silk chicken, black chicken and so on.

1. Taihe chicken: this breed is the largest in the country and has been listed as an international standard breed, and its appearance has the characteristics of "ten complete". Namely: from the crown (also known as mulberry crown), tasseled head (also known as crested head), green ear, beard, silk hair, black foot, black claw, black skin, black meat, black bone. The adult cock is 1.3ml 1.5 kg and the adult hen is 1.0ml 1.2kg. The age of sexual maturity of rooster is 150ml 160 days, and the sexual maturity of hens is 170ml 180 days. It lays about 100 eggs a year. The weight of eggs is about 40 grams, and the eggshell is light white.

2. Yugan black chicken: Yugan black chicken is black all over, with flaky feathers, beak, crown, skin, meat, bone, viscera and toes. The hen has a single crown, beautiful head, divine eyes and compact feathers; the rooster is colorful, majestic and sturdy, with high tail feathers, black shining, muscular legs, high head and single crown. The weight of adult rooster is about 1.5 kg and that of hen is about 1.1 kg. It is agile, good at leaping, strong in finding food and disease resistance, wide in adaptability and low in feed consumption. The sexually mature rooster lasts for 80 days and the hen for about 180 days. It lays about 150 eggs a year. The egg weight is about 50 days. The eggshell is pink.

3. Jiangshan White-haired Black-bone Chicken: this breed of black-bone chicken has pure white feathers, black skin, black meat, black bone, beak and feet, Finch green earlobe, crimson single crown, elegant posture, Cheng Yuan treasure type, round and protruding eyes. The average weight of adult rooster is about 1.6 kg and that of hen is about 1.5 kg. The average age of first laying is 184 days. The average egg production at 500 days old is 138 and the average egg weight is 56.47 g.

4. Xuefeng black-bone chicken: it is of medium size, slightly longer and strong, with black skin, black meat, black bone and black beak. Feathers are shiny and clinging to the body. There are three kinds of coat colors: all white, all black and miscellaneous. The single crown is purple, the auricle is green, and the iridescent brown. The tail of the adult rooster was fan-shaped. At the age of 6 months, the average weight of the adult rooster was 1.5 kg, and that of the hen was 1.3 kg. The first laying age of the hen was 156 Mel 250 days, and the average age of cock crowing was 153 days.

5. Jinyang Silk Chicken: its feathers are silk-shaped, the body of the hen is medium size, the head size is moderate, red single crown, beak meat color, ear leaves are mostly white, red or purple, skin white, individual black, body slightly shorter, shank color or black, most of them have no shin feathers and 4 toes. Feather colors are divided into white, black and miscellaneous colors. The average body weight of 6-month-old adult cocks is 2.09 kg, and that of hens is about 1.3 kg. The first laying age of hens is about 160 days, the age of cock crowing is about 120 days, and the annual average number of eggs is about 80. However, it has not been systematically selected at present, and it is still a good local variety.

6. Black Phoenix chicken: black chicken is known as "Chinese black treasure". It has the characteristics of black silk hair, black skin, black meat, black bone, crown, crested head, green ear, beard, hairy legs and five claws. The weight of adult rooster is 1.25Mel 2.0kg, and the weight of adult hen is 1.0Mel 1.5kg. The annual egg production of hens is about 140mi 160. The eggshells are mostly brown, and the average egg weight is 40ml 48g. Breeder chickens begin to lay at the age of 6 months. The toes of black chicken are black and the tongues are mostly light black or black.