Evaluation results for appearance characteristics and productivity of the Naked neck chicken breed in Que Phong district, Nghe An province
This study is aimed to be a first step in assessing the appearance characteristics, growth ability, and reproductive productivity of Naked neck chickens that are conserved at Na Sai village, Hanh Dich commune, Que Phong district, Nghe An province from 2019 to 2020. Results showed that the Naked neck chicken has appearance characteristics at one day of age with pale yellow and yellow-brown hair, with black spots on the head, tail, and wingtip, long neck and hairless; pale yellow skin, beak, and legs. At 20 weeks, males have a larger body than females, with a variety of feather colors, round eyes, the golden black, curved and hard beak. Especially, the upper side of the neck extending from ear to body completely hairless, the underside of the neck has a bunch of feathers attached to the body, bright red face and neck skin, a long, curled tail, and blue-black. Females have a slimmer and lighter body than males, round eyes, black and yellow beak, pale pink face and neck skin, and the neck area is also hairless. Naked neck chickens have a survival rate at 20 weeks of age of 79.33%. The body weight at 8 weeks of age was 658.13 and 557.67 g/head for males and females. At 20 weeks of age, the males and females reached 1,382.97 and 1,116.83 g/head, respectively. The Naked neck chicken has the age of laying the first egg at 182 days and reaches the peak at 257.50 days of age. Egg production per 52 laying weeks was 24.35 eggs/head, corresponding with a laying rate of 6.87% and FCR/10 eggs were 10.62 kg. The rate of fertile eggs was 88.85%; the rate of hatching/incubation eggs was 70.87%.
