Yinxiang Maji is a mating line bred by Guangxi Zhuang Autonomous Region Animal Husbandry Research Institute using local Mayu chicken and Sanhuang chicken, and the sex-linked dwarf gene was introduced. Because the chicken is distributed in Yinxiangchong, where the Animal Husbandry Research Institute of Guangxi Zhuang Autonomous Region is located, it is named Yinxiangma Chicken. Won the third prize of scientific and technological progress in Guangxi Zhuang Autonomous Region 65438-0999.
efficiency
Under the condition of moderate nutrition level and limited feeding during the breeding period, the average age of parents of Ma chicken is 120 days old, the laying rate of 150 ~ 1700 days old is 50%, and the birth weight is1400 ~1700g. 7 1 week-old hens lay eggs on average 155; Adult cock weight1900 ~ 2200 g. At present, there are two supporting lines used in production. First, the short-legged chicken is used as the paternal line to match the normal hen, and the offspring rooster is normal and the hen is short; Secondly, normal cocks with short hens have normal offspring. The cock weight of 70-80-day-old commercial chickens 1, 500- 1, 700g, and the feed-meat ratio (2.3-2.7):1; Weight of 90- 100-day-old hens, normal type1300 ~1500g, feed/meat ratio (3.2 ~ 3.4): 1, short type1200 ~1.
Nandanyao chicken
Place of origin?
It is a fleshy variety. Mainly produced in Yaozhai Bawei and Lihuyao in Nandan County, Guangxi Zhuang Autonomous Region. The formation of Nandan Yao chicken is closely related to the local natural and social conditions. In particular, the local Yao people have the habit of choosing dwarf male hens to keep their seeds. In addition, Yaozhai is located in a remote place, and there is no foreign chicken offal. It has been locked up for a long time, forming an ornamental local variety with short stature and beautiful feathers.
efficiency
① Growth speed and meat production performance: The average weight of adult cock and hen of Xiaoyao chicken is 3000g and 2000g respectively. Under the conditions of semi-clean chamber and full clean chamber, the average slaughter rate of small adult Yao chicken is 82.05% and 77.00% respectively. The average weight of adult cock of Dayao chicken is 3000 grams, and the highest is 4600 grams; Hen 2000 grams, the highest is 2700 grams. The average slaughter rates of adult Yao chicken with semi-clean chamber and full clean chamber were 90.00% and 86. 10% respectively.
② The average age of laying hens is 190 days. An average of 70 eggs are laid each year, with an average egg weight of 48 grams and a maximum egg weight of 60 grams. The eggshell is brown, with a few white. The sexual maturity of roosters is 150 ~ 180 days. Hens have strong nesting ability, nesting 3-4 times a year, and the average nesting duration is 25 days. The utilization period of male hens is 1 ~ 2 years.