(I) General situation of breeding
Guinong Golden Chicken is a teaching experimental chicken farm of Guizhou University. It uses the local Mahuang yellow chickens of Huaxi and Qingyan of Guiyang as female parents. Jin Luo Lock, Ao Pinton, and New Han Xia have been involved in complex crosses. Since 1963, chickens have been established. More than 20 years of breeding and systematic family selection has resulted in the development of egg and meat type chickens. In 1985, it passed the "Sixth Five-Year Plan" scientific and technological breakthroughs. Its main economic traits have reached or exceeded the predetermined targets and were officially designated as varieties. The Guinong golden chicken has high production performance, good reproductive performance, uniform appearance, stable heredity, strong adaptability, fresh meat, and is popular with the masses. It is suitable for feeding in small and medium-sized chicken farms and rural areas.
(II) Physical Features
Guinon golden chicken plumage is uniform golden yellow, a few are light yellow or red and yellow, shiny.喙 胫, 胫 yellow, "Three yellow" features clearly. The size of the head is moderate, with yellow-orange eyes, single-vertical erection, bright red color, and 5-7 crowns. The face, flesh and ears are bright red. The chest is deep, the back is straight, and the legs are of medium height. The hindquarters are well-developed, well-balanced, plump, and attractive.
(c) Weight and body size
The adult cock weighs 3.20.335 kg and the adult hen weighs 2.40.545 kg. The results of determination of body weight and body measurements of adult Golden Chicken in adult
(D) Production performance
1. Egg production performance
Under normal feeding and management conditions, chickens have an egg production rate of 50 % at a daily age of 150 to 160 days. The annual egg production is 190 ~ 210 eggs, and the average egg weight is 58 grams. The egg production intensity: generally produces 2 ~ 3 pieces, and the maximum production is 31 pieces. Egg material ratio is 1:3.3.
Egg-shaped oval, egg-shaped index of 1.34. Good protein quality, Harbin unit 86.73. Eggshell brown, from dark to light. Eggshell thickness 0.32 mm, thicker surface dense.
2. Meat production performance
Guinong Golden Chicken has a finer bone and a higher slaughter rate. It was determined that the slaughter rate of adult roosters was 74% to 76%, and the slaughter rate of adult hens was 66% to 68%. The quality of the meat was good, and the chicken passed the same age as the Golden Chicken, White Rock, Chickens and red broilers were used for taste evaluation. The golden chicken quality of Guinong was the best. The 15th amino acid content analysis was performed on the pectoral muscle, and the Guinong golden chicken was the highest.
Reproductive performance
Guinong Golden Chicken has good reproductive performance. The egg fertilization rate is 90%-95% and the hatching rate of fertilized eggs is 90%. The 6-week-old breeding rate is 95%.
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