Jining Hundred-Day Chicken is an egg-laying chicken, and the early-maturing individual can give birth at about 1 days old, hence the name. [1]
main producing area
Jining Hundred Days Chicken is mainly produced in the central area of Jining City, Shandong Province, and distributed in Jiaxiang County, Jinxiang County, Wenshang County, surabaya county City, Yanzhou City and other places in the neighboring Jining City. [2]
Growing environment
Jining has a 7-year history of civilization and is one of the important birthplaces of oriental civilization. Jining belongs to the junction of Shandong
Jining scenery
[3] Nantaiyi low hills and southwest Shandong Huanghuaihai Plain, with high terrain in the east and low terrain in the west, mainly plain depressions. Jining has a warm temperate monsoon climate with four distinct seasons. In summer, there are many southerly winds, high temperature and rainy days; In winter, there are many northerly winds and sunny and cold weather; Spring is prone to drought and windy, and it recovers quickly; It is cool in autumn, but sometimes it rains. Jining has abundant light energy resources, with an average annual temperature of about 14 degrees Celsius, an average frost-free period of more than six months and an average annual precipitation of about 7 mm.. Jining is an important grain, cotton and oil base and characteristic agricultural product base in China, which is rich in coal, rare earth, hydropower and animal and plant resources. Crops include wheat, rice, corn, sweet potato, cotton, etc. The famous Qufu fragrant rice, small-tailed Han sheep, Luxi yellow cattle and jinxiang garlic are produced. [4]
Physiological characteristics
Jining Centennial Chicken is small and compact, with a moderate head size, a slightly longer body, head and tail raised, a U-shaped cock with a back
[5] and many skin colors
Jining Centennial Chicken (5 photos) is white. Cocks are slightly heavier, with longer neck and legs, followed by yellow cocks with red feathers accounting for 8%, with few variegated cocks and black tail feathers with green luster. Most of the heads are flat-headed, with crested heads accounting for only 1%. The crown is upright, with a height of 3-4 cm. The crown, face and flesh hang bright red, and the tibia are mainly metal gray and gray, with a white beak. Hens have close feathers, delicate appearance, straight back and waist, and the coat color is hemp, yellow, flower and other feather colors, most of which are hemp chickens. The head and neck feathers of Ma chicken are twisted, and the edge of the feather surface is golden yellow, with gray or black stripes in the middle. The shoulders and wing feathers are mostly hemp colors with different shades, and the tail feathers of the main and aileron feathers are mostly light black or black. The beak is gray-black, and the iridescence is mainly orange and light yellow. The crown type is mainly single crown, and the crown height is 1.5 to 2 cm. The adult cock weighs 2 Jin 6 Liang and the hen weighs 2 Jin 3 Liang [6].
Growth cycle
The earliest laying time of Jining Hundred-Day Chicken is 8 days, usually 1 to 12 days. The initial laying weight is 29 grams.
The average egg weight of Jining Hundred-Day Chicken
[7] is 4 grams. The egg weight is small, the yolk is large, the proportion of yolk accounts for about 37% of the egg weight, and the eggshell is light brown. Under the condition of extensive feeding, the annual egg production of 5-day-old hens is 13 to 18, and the number of high-yield chickens is more than 2. The laying period of Jining Hundred Days Chicken is 2 to 3 years. Nesting is more common in hens over two years old, accounting for about 8%. Nest once or twice a year for 2 to 35 days. Adult chickens molt from February to November, and high-yield chickens can molt in 3 to 4 days. Jining Hundred Days Chicken is light in weight, consumes less feed, lays eggs early and has strong disease resistance. The digestive organs are more developed, the abdominal fat is less, and the slaughter rate is lower. The total clean rate of roosters is 58%, and that of hens is 64%.