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Yanjin Silkies Chicken
Country: China
Home Tract: Yanjin, Daguan and Weixin Counties, Yunnan Province.
Morphological characters
Body: Large sized, squared
Body Plumage: Compact plumage. Majority of surface colour is black. It is ripple-yellow, gray, black-yellow, white, red that take second place.
Skin colour: Black
Head: Hold up
Combs: Flat on the top, Single upright comb, black
Wattles: Black
Ears: Black
Face: Black
Beak: Black
Wings: Well-folded
Chest/Breast: Well developed
Tail: Hold up
Limbs/Shanks: Some have shank feather
Morphometric traits
Body weight: Cock 3.18 kg, hen 2.2 kg
Reproductive Traits
Age at first egg: 210 days
Production traits
Egg shell colour: Hazel, and minority is white
Annual egg production (numbers): 120-160
Weight of an egg: 56.7 grams
Egg shape index: 1.4
Half evisceration rate: At adult is 84.3% for male and 84.1% for female.
Evisceration rate: At adult is 78.2% for male and 73.2% for female.
References
Huo J.L., et al., 2014, “Genetic diversity of local Yunnan chicken breeds and their relationships with Red Junglefowl,” Genetics and Molecular Research; 13(2): 3371-3383. [Web Reference]
Jia Y., 2004, “Report on domestic animal genetic resources in China,” China Agriculture Press. [Web Reference]