What kinds of chickens are there?

Excellent laying hens and broiler breeds. \x0d\( 1) Roman brown-shell laying hens \x0d\ Roman brown-shell laying hens are excellent four-line laying hens cultivated by Roman Company in Germany, with the highest coverage rate among brown-shell laying hens. "x0d" has the excellent characteristics of strong adaptability, less materials, more eggs and high survival rate. \x0d\ Parental production performance of Roman brown shell laying hens: 1~ 18 weeks survival rate is 97%, the first laying age is 2 1~23 weeks, the peak laying rate is 90~92%, and the number of hens laying eggs in 72 Zhou She is 290~295. \x0d\ Production performance of commercial Roman brown-shell layers: 1~ 18 weeks survival rate is 98%, the first laying age is 2 1~23 weeks, the peak laying rate is 92~94%, and the hens in the house lay 300~305 eggs in February, with an average egg. \x0d\ Roman brown shell laying hens can be raised in most parts of the country, and are suitable for intensive chicken farms, large-scale chicken farms, specialized households and farmers. \x0d\(2) Hessex brown-shell laying hens \x0d\ Hessex is an excellent laying hen breed cultivated by EURIBRID Company in the Netherlands, and it is one of the brown-shell laying hens that are raised more. \x0d\ Black plug brown shell laying hens have the excellent characteristics of less feed consumption, more eggs and high survival rate. \x0d\ Production performance of parents of Hesse brown shell laying hens: the mortality rate of 0-20 weeks old hens is 4%, the weight of 20-week-old hens is 1690g, the feed consumption of chickens is 7.9kg during the laying period (2 1~68 weeks), 247 eggs are laid in the house, and 2 15 eggs are hatched in the house. The hatching rate is 87%, the average hatching rate of hatched eggs is 80. 1, and the average daily feed intake of chickens is 12 1 g. At the end of laying period, the production performance of commercial black silk brown shell layers \x0d\ is: the survival rate of 0~ 17 weeks is 97%, the weight 14 10g, and the feed consumption of one chicken is 5.7kg during laying period (20-78 weeks), with an average age of 65,438+045 days. There are 324 laying hens in the house, with an egg production of 20.4 kg, an average egg weight of 63.2 g, a feed utilization rate of 2.24, a survival rate of 94.2% during the laying period, and an average daily feed intake of 140-day-old chickens of 65,438+. \x0d\ The feather color of commercial generations of Hesse brown-shell layers is self-nature, which can be divided into three types: 1 type, the female chicks are uniform brown and the male chicks are uniform yellow-white, accounting for 90% of the total; Type 2 females are mainly brown with white stripes on their backs, males are mainly white with brown stripes on their backs, accounting for 8% of the total; Type 3 females are mainly white, but the head is reddish brown, and males are mainly white, but there are four narrow brown stripes on the back. The outline of stripes is sometimes clear and sometimes fuzzy, accounting for 2% of the total. \x0d\ Hesse brown shell laying hens can be raised in most parts of the country, and are suitable for intensive chicken farms, large-scale chicken farms, specialized households and farmers. \x0d\(3) Hyland variety Brown is an excellent four-line laying hen breed cultivated by Hyland International, and it is one of the most widely raised brown shell laying hens. \x0d\ Plateau brown-shell laying hens have the excellent characteristics of high feed reward, more eggs and high survival rate. \x0d\ Production performance of commercial blue-ocean brown-shell layers: 1~ 18 weeks survival rate is 96-98%, weight 1550g, feed consumption of chickens is 5.7-6.7kg during laying period (the longest is 80 weeks), and the peak laying rate is 94-96%. The number of eggs laid by hens in the shed is 246 in 60 weeks, 365,438+07 in 74 weeks and 344 in 80 weeks. The average egg weight is 62.3g at 32 weeks old and 66.9g at 70 weeks old. The total weight of laying eggs on feeding day is 65,438+07 ~ 74 weeks. The average daily feed intake of 19~80 weeks old chickens is 1 14g, that of 2 1~74 weeks old chickens is 2. 1 1kg, and that of 72 weeks old chickens is 250g. \x0d\ Plateau brown shell laying hens can be raised in most parts of the country, and are suitable for intensive chicken farms, large-scale chicken farms, specialized households and farmers. \x0d\(4) Hyland variety W-36 is a four-line excellent laying hen variety cultivated by Hyland International in the United States, which was bred by generations or parents in chicken farms in China and is one of the most widely bred white-shell laying hens. \x0d\ Blue Ocean white-shell laying hens have the excellent characteristics of high feed reward, more eggs and high survival rate. \x0d\ Production performance of blue-ocean white-shell layers: 1~ 18 weeks, the survival rate is 97-98%, the weight is 1280g, and the peak laying rate is 93-94% during the laying period (the longest 80 weeks) when a chicken consumes 5.66kg of feed. \x0d\ Plateau white-shell laying hens can be raised in most parts of the country, which is suitable for intensive chicken farms, large-scale chicken farms, specialized households and farmers. \x0d\(5) New Poplar Brown Shell Laying Hen Matching Line \x0d\ New Poplar Brown Shell Laying Hen Matching Line (Elizabeth Brown) consists of four lines, with the feather speed of parents and the feather color of commodities. Xinyang brown-shell laying hens supporting system was jointly cultivated by Shanghai Xinyang Livestock Breeding Center and other three units. Approved by the National Variety Approval Committee, Xinyang brown-shell laying hen mating line has the excellent characteristics of high laying rate, high survival rate, high feed reward and strong disease resistance. \x0d\ The ancestor laying hens of Xinyang Brown-shell laying hens are characterized by \x0d\ A's body length, long square brick shape, strong constitution, gentle temperament and red feathers, but its tail feathers, saddle feathers, neck feathers and nose feathers are black, with yellow skin, single crown and brown shell eggs. \x0d\ B is a long and square brick with strong physique and gentle temperament, but its tail feathers, saddle feathers, neck feathers and nose feathers are black, with yellow skin, single crown and brown shell eggs. \x0d\ C is long, square brick, strong physique, gentle temperament, white, single crown, yellow skin, white bottom and brown shell eggs. \x0d\ D is a long and square brick, with strong physique and mild temperament, white, single crown, yellow skin, white bottom and brown shell eggs. \x0d\ Production performance of the offspring of Xinyang brown-shell laying hen mating line: during the laying period (2 1~68 weeks), the total number of laying hens in the house is 245.5, the number of breeding eggs is 2 16.3, the hatching rate of breeding eggs is 7 1%, and the number of chickens available is 83.8; During the laying period (265,438+0 ~ 68 weeks), D hens laid 242.7 eggs, laid 206.9 eggs, hatched 74% eggs and sold 82.5 chicks. \x0d\ Xinyang brown-shell layer parental strain features: \x0d\ AB is long, square brick, strong and tame, with red feathers, but its tail feathers, saddle feathers, neck feathers and nose feathers are black, yellow skin, single crown and brown-shell eggs. \x0d\ CD is long, square brick, strong physique, gentle temperament, white, single crown, yellow skin, white bottom, brown shell egg. \x0d\ Production performance of parents of Xinyang brown-shell laying hens: 1~20 weeks old, survival rate 95~98%, 20-week-old body weight 1550~ 1650 kg, and feed consumption for laying hens 7.8 ~ 8.0kg；; During the laying period (2 1~72 weeks), the survival rate was 93~97%, the age of first laying eggs (50%) was154 ~16/day, the peak laying period was 28~32 weeks, and the number of eggs laid by 72-week hens in the shed was 266. 72-week-old hens lay 240~250 eggs a day, with an average hatching rate of 865,438+0 ~ 84%. The weight of 68-week-old hens is 2050 ~ 2100g, and the feather speed is spontaneous. \x0d\ Xinyang Brown-shelled layers are characterized by long body, square brick shape, strong physique, mild temperament and red feathers, but some tail feathers are white, yellow skin, single crown and brown-shelled eggs. \x0d\ Production performance of commercial substitute for Xinyang brown-shell laying hens: 1~20 weeks old, survival rate of 96~98%, weight of 20 weeks old 1500~ 1600 kg, and feed consumption for laying hens of 7.8 ~ 8.0kg；; During the laying period (2 1~72 weeks), the survival rate was 93~97%, the first laying age was (50%)154 ~16/day, the peak laying rate was 90~94%, and the number of eggs laid by 72-week-old hens was 287. Egg laying weight of 72-week-old layers 18.0~ 19.0 kg, egg laying weight of 72-week-old layers 18.3~ 19.4 kg, average egg weight of 63.5 g, average daily consumption of chickens115 ~. \x0d\(6) Huadu 98-line laying hens \x0d\ Huadu 98-line laying hens were bred by Beijing Huadu Group Co., Ltd. on the basis of 1997 and 1998, which were introduced from Hendricks Poultry Breeding Company in the Netherlands. The new mating line not only inherits the excellent performance of the original variety, but also is more suitable for the feeding environment in China, with the characteristics of early production start, uniform egg weight, good egg laying continuity and high feed reward. \x0d\ Huadu Bai Jing -A98, white-shelled eggs, four-line match. The ancestral feathers are pure white, with fast feathers in A, B and D and slow feathers in C. The paternal line of parents is fast feather, and the maternal line is slow feather; The feather speed of commercial chicks is different, and the female chicks have faster feather speed. Huadu Bai Jing -A98 is characterized by high yield, uniform egg weight and high eggshell strength. \x0d\ Production performance of Huadu Bai Jing -A98 parents: the survival rate of 0-20 weeks is 95-96%, 18 weeks weight1200 ~1250g, 20 weeks weight1350 ~1. During the laying period (2 1~68 weeks), the survival rate was 92~93%, the first laying age was (50%) 140~ 150 days, the peak laying rate was 90~93%, and the number of chickens laid in the house was 255~265. \x0d\ Production performance of Huadu Bai Jing -A98 commodity generation: the survival rate of 0-20 weeks old is 96-98%, 18 weeks old weight190-1240g, 20 weeks old weight1350 ~/. During the laying period (2 1~68 weeks), the survival rate was 94~95%, the first laying age was (50%) 140~ 147 days, the peak laying rate was 93~96%, and only 327~335 eggs were laid in the shed, with an average egg weight of 65435. \x0d\ Huadu Jinghong -B98, brown shell egg, four-line match. Ancestral a series and b series brown and white, c series and d series white; The paternal line of parents is reddish brown, and the neck and tail feathers are white; The feather color identification of commercial substitute chicks shows that brown feathers are female chicks. Huadu Jinghong -B98 is characterized by uniform eggshell color, moderate egg weight and high feed reward. \x0d\ Production performance of Huadu Jinghong -B98 commercial substitute: the survival rate of 0-20 weeks is 96-98%, 18 weeks' weight1500g, 20 weeks' weight1700g, and the feed consumption of house chickens is 7.4kg; During the laying period (2 1~80 weeks), the survival rate was 93.7~95.7%, the first laying age was (50%) 139~ 142 days, the peak laying rate was 94~96%, and 350 eggs were laid in the shed, with an average egg weight of 64.4 ~ 64. \x0d\ Huadu Jinghong -C98, brown shell egg, four-line match. The ancestors of A and B were brown feathers, and C and D were white feathers. The paternal line of parents is red feather, and the maternal line is white feather; The color identification of commercial feathers shows that brown feathers are female chicks. The main characteristics of Huadu Jinghong -C98 are high survival rate, dark eggshell color and heavy egg. \x0d\ Production performance of Huadu Jinghong -C98 commodity substitute: the survival rate of 0-20 weeks is 97-98%, 18 weeks' weight1500g, 20 weeks' weight1700kg, and the feed consumption of chickens is 7.39kg; During the laying period (2 1~80 weeks), the survival rate was 94.3%, the age of first laying eggs (50%) 140 ~ 143 days, the peak laying rate was 94~96%, and 350 eggs were laid in the house, with an average egg weight of 66.8g.. \x0d\ Huadu refined powder -D98, powdered egg, four-line collocation. The ancestors of A and B were brown feathers, and C and D were white feathers. The paternal line of parents is fast feather, and the maternal line is slow feather; The feather color of commercial chicks is different, and the fast feather is the female chick. \x0d\ Production performance of Huadujingfen -D98 parents: the survival rate of 0-20 weeks old is 95-96%, 18 weeks old weight1200 ~1250g, 20 weeks old weight1350 ~/kloc-0. During the laying period (2 1~68 weeks), the survival rate was 93~94%, the first laying day was (50%) 140~ 150 days, the peak laying rate was 9 1~93%, and only 255~265 eggs were laid in the shed. The average daily feed intake of a chicken is112 ~117g, and the weight of hens at the end of laying is 1700 ~ 1800g. \x0d\ Detoxification refined powder -D98 commercial substitute production performance: the survival rate of 0-20 weeks old is 96-98%, 18 weeks old weight1290-1340g, 20 weeks old weight1400-/kloc-0. During the laying period (2 1-68 weeks), the survival rate was 93-95%, the first laying age was (50%) 140- 147 days, the peak laying rate was 93-96%, the number of eggs laid in the shed was 324-336, and the average egg weight was 65436. \x0d\ Huadu 98 series laying hens can be raised in most parts of the country, and are suitable for intensive chicken farms, large-scale chicken farms, specialized households and farmers. \x0d\(7) Avian Broiler \x0d\ Avian Broiler is a three-line supporting white feather broiler breed cultivated by Avian International Co., Ltd. in the United States. China began to introduce it from 1987. At present, most provinces (autonomous regions and municipalities directly under the Central Government) in China have ancestral and parental chicken farms, all of which are white feather broilers. \x0d\ Avian broiler is the dominant white feather broiler, with strong body, wide chest, short legs and yellow skin, which has the excellent characteristics of fast weight gain, high survival rate and high feed reward. \x0d\ ancestral production performance of Evian broilers: the average laying rate of laying hens is 60% in maternal line, 52% in paternal line, the cumulative number of laying eggs in maternal line 163, and 138 in paternal line, with an average pass rate of 91%; The average hatching rate of the mother is 82%, while that of the father is 77%. 0/22 maternal chickens and 94 paternal chickens, including 58 maternal chickens and 45 paternal chickens. In the laying period of 4 1 week, the survival rate of hens is 90% in maternal line and 85% in paternal line. \x0d\ Parental production performance of Avian broilers: when hens lay 5% eggs, the survival rate is not lower than 95%, and the mortality rate during laying period is not higher than 8 ~10%; The egg laying rate at peak period was 86.9%. 465,438+0 weeks old, laying 65,438+087 eggs, laying 65,438+077 eggs by hens in the house and 65,438+054 healthy chicks. The highest hatching rate of eggs is over 965,438 0%. \x0d\ Avian broiler commercial performance: 49-day-old male and female mixed, weighing 26 15g, consuming 4.63kg, feed conversion rate 1.89, and survival rate over 97%. \x0d\ Avian broilers can be raised in most parts of the country, which is suitable for intensive chicken farms, large-scale chicken farms, specialized households and farmers. \x0d\(8) A broiler in Aiba \ x0d \ Arboracles, also known as AA broiler, is a four-line white feather broiler breed cultivated by Arboracles Farm Company of the United States. All four lines are white snails with white feathers and single crown. China began to introduce it from 1980. At present, there are more than ten ancestral and parental chicken farms, which are the most widely raised varieties of white feather broilers. \x0d\ AA broilers have the excellent characteristics of stable production performance, fast weight gain, high breast meat yield, high survival rate, high feed reward and strong anti-stress ability. \x0d\ AA broiler parents' production performance: the average survival rate of the whole group is 90%, the number of eggs laid by hens in the house at 66 weeks old 193, the number of hens in the house 185, the number of healthy chicks 159, the egg fertilization rate is 94%, and the average hatching rate of eggs in the house is 80%. \x0d\ AA Production performance of commercial broilers: 35-day-old body weight 1.770g, survival rate of 97.0%, feed utilization rate1.56; At the age of 42 days, the body weight was 2360 grams, the survival rate was 96.5%, the feed utilization rate was 1.73, and the breast meat yield rate was 16. 1%. 49 days old, weighing 2940 grams, the survival rate was 95.8%, the feed utilization rate was 1.90, and the breast meat yield was 16.8%. \x0d\AA broilers can be raised in most areas of China, and are suitable for intensive chicken farms, large-scale chicken farms, specialized households and farmers. \x0d\(9) Anka Red \x0d\ Anka Red (ANAK40) is a fast-growing yellow-feathered broiler with four strains, which originated in Israel and was introduced to Shanghai Huaqing Great-Grandfather Broiler Farm in 1994+ 10. \x0d\ Ankahong is one of the fastest growing color broilers, which has the characteristics of strong adaptability, anti-stress, fast growth and high feed reward. \x0d\ Anka has red and yellow feathers, single crown, red and yellow body, yellow legs and yellow skin. Some chickens have hemp feathers on their necks and backs. The average live weight of 49 days old 1930g, and the feed-meat ratio was 2: 1. It has good combining ability with domestic local chicken breeds. At present, most fast-growing yellow-feather broilers in China contain anka red blood silk. In some areas of China, Anka red rooster is used to cross with commercial layers or local chicken breeds to produce yellow hybrid chickens. \x0d\ Ankahong can be raised in all regions of China, and is suitable for intensive chicken farms, large-scale chicken farms, specialized households and farmers. \x0d\( 10) Candal yellow chicken 128 mating lines \x0d\ Candal yellow chicken 128 mating lines include Candal 128A and Candal 128F, which are yellow-feathered broilers. It was cultivated by the Poultry Breeding Center of Shenzhen Candal (Group) Co., Ltd., approved by the National Animal Variety Approval Committee and approved by the Ministry of Agriculture in July 2000. \x0d\ Candal Yellow Chicken 128 is a medium-speed and high-quality broiler with yellow feathers, rectangular body, plump chest, excellent meat quality and high survival rate. The fertilization rates of Candal Yellow Chicken 128 were 96.67%, 97.33%, 88.5% and 92.83% respectively. The hatching rate of fertilized eggs in Candal 128F is 9 1.55%, Candal 128A is 95.38%, Candal 128F is 98.68%, and Candal 128A is100. \x0d\ Candal yellow chicken 128 mating line 12-week-old hen weight Candal 1944.86g, Candal 1849.96g, feed conversion rate Candal 3.09 and 3.09. The weight of 8-week-old cocks in Candal is 1636. 13g, that in Candal is 1488.06g, that in Candal is 128F+0 1, and that in Candal is 65438+. \x0d\ Candal yellow chicken 128 56-day-old slaughter. The slaughter rate of Candal 128F was 94.59%, that of Candal 128A was 93.3%, that of Candal 17.44%, and that of Candal was 65,438+. Hens were slaughtered at the age of 84 days. The slaughter rate in Candal is 94.77%, that in Candal is 94.08%, that in Candal is 265,438 0.05% and that in Candal is 22.65438 0.07%. \x0d\ Candal yellow chicken 128 mating line can be raised in all regions of China, and is suitable for intensive chicken farms, large-scale chicken farms, specialized households and farmers. \x0d\ III。 Hyland \x0d\ Hyland brown-shell, white-shell and broken-shell laying hens are cultivated by Hyland Company of the United States, which has more than 50 years of poultry breeding experience and is famous for laying hens. It is sold in our country. At present, there are: Beijing Yukou Breeding Farm, Shaanxi xi Anlanhai Poultry Development Company, Shandong Jinan Feicheng Breeding Farm, etc. \x0d\ (1) Production Performance of Blue Ocean White-Shell Parent Breeder \x0d\ Growth Period: 0- 18 weeks. Survival rate: 97%-98%. \x0d\ 18 weeks weight:1.28kg laying period: 18-80 weeks. \x0d\ Peak laying rate: 93%-94%. \x0d\ Number of eggs laid by hens in 60 weeks: 227-234. \x0d\ Number of eggs laid by hens in 80 weeks: 323-332. Survival rate of feed from \ x0d \ week old: 95%. 50% laying rate Age: 157 days. Average egg weight at \ x0d \ weeks: 63g. Feed conversion rate from \ x0d \ week old: 2.03. \x0d\ (II) Production performance of commercial generation of blue ocean white shell laying hens \x0d\ Growth period: 0- 18 weeks. Survival rate: 95%-98%. \x0d\ Feed consumption: 5.67kg. 18 week weight:1.28kg. \x0d\ Laying period: 18-72 weeks. 50% laying rate Age: 159 days. \x0d\ Peak laying rate: 92%-95%. \x0d\ Number of eggs laid by hens in the house: 2,765,438+0-286. \x0d\ Survival rate: 92%-95%. \x0d\ 72-week weight:1.68kg. Feed conversion rate: 2-2.2. (3) Production performance \x0d\ survival rate of parents with brown shell in blue ocean: 1- 18 weeks, 95%; 18-70 weeks is 9 1%. \x0d\ 50% laying rate Age: 16 1 day. The peak laying rate is 88%. \x0d\ hen enters the house: 244. Number of eggs hatched by hens at home: 2 1 1. \x0d\ Hatching rate: 82%. Weight at 60 weeks: 2.4 1 kg. \x0d\ IV。 Dika \x0d\ (1) Dika Company is an early poultry breeding enterprise in the United States, selling its white-shell laying hens and newly introduced golden roosters in China. The main breeders are: Henan Neihuang Breeding Chicken Company, Shandong Jining Breeding Chicken Farm, etc. (1) commercial performance of Dika white-shell laying hens \x0d\ 50% laying rate Age: 142- 150 days old. \x0d\ Peak laying rate week: 27-29 weeks. \x0d\ Survival rate: 94% ~ 96% in growth period and 90% ~ 94% in laying period. \x0d\ Peak laying rate: 92% ~ 97%. \x0d\ Number of eggs laid by hens in the house: 235 ~ 245 in 60 weeks; 295 ~ 305 pieces in 72 weeks. \ x0d \ Egg production of hens entering the house at the age of weeks:14.2 ~14.7kg; 72 weeks 18.2 ~ 20.6 kg. \x0d\ Feed conversion rate: 60 weeks 2.1~ 2.2; 72 weeks 2. 15 ~ 2.25. \x0d\ Average egg weight: 61.5g ... \ x0d \ (II) Production performance of commercial brown-shelled layers \x0d\ 50% laying rate. Age: 140 days. Peak laying week: 26 weeks. \x0d\ Survival rate: 96% ~ 98% in growth period; The laying period is 94% ~ 96%. \x0d\ Peak laying rate: 92% ~ 95%. \x0d\ Number of eggs laid by hens in the house: 235 ~ 250 eggs in 60 weeks; 72 weeks 290 ~ 3 10 pieces. \x0d\ Total egg weight of hens entering the house: 60 weeks14.9 ~15.4kg; 72 weeks 18.9 ~ 19.6 kg. \x0d\ Feed efficiency: (72 weeks) 2.07 ~ 2.28. \x0d\ Average egg weight: 63 ~ 64g. \x0d\ v. Beijing Avian \ x0d \ Beijing Avian Poultry Breeding Company is a joint venture company jointly funded by China, the United States and Thailand, and it is the first large-scale broiler breeding company in China. At present, the company's chickens account for more than 40% of the domestic broiler market, which has made great contributions to the development of broiler production in China. \x0d\ (1) Performance of Avian's parents \x0d\ The survival rate of hens in the shed with 50% egg laying rate is 95%. \x0d\ 50% laying rate Age: 175 ~ 182 days. \x0d\ Peak laying week: 32-33 weeks. \x0d\ Peak laying rate: 85%. Average spawning rate: 56%. \x0d\ Peak hatching rate: 90%. Average hatching rate: 85.6%. \x0d\ Number of eggs laid by hens in the house: 183 ~ 190. \x0d\ Number of eggs laid by hens at home: 173 ~ 180. \x0d\ Hatching number: 149 ~ 154. \ x0d \ Weight of 67-week-old hens: 3.58 ~ 3.74 kg. \x0d\ Mortality rate in laying period: 7% ~ 10%. \x0d\ VI。 Hi-Y. \x0d\ Hubbard Company belongs to Mok Company of the United States, which introduced Hi-Y broilers with good production performance, and its sales in China increased rapidly. At present, the domestic enterprises that raise this breed are: Shaanxi Sifang Company, Shandong Taian Broiler Company, etc. \ x0d \ (1) parental performance of hi-y broilers \ x0d \ number of eggs laid: (64 weeks) 165. Hatching rate: 85%. \x0d\ Survival rate of chickens: 95%. Survival rate of laying hens: 93%. \x0d\ (II) Production performance of commercial generation Hi-Y broilers \x0d\ 7-week-old weight: 2.4kg Feed conversion rate: 2.02. \x0d\ Survival rate: 95%. Slaughtering rate: 68%. \x0d\ VII。 Love increases (AA). \x0d\ American AA Company is a world-famous broiler breeding company, which has occupied a major position in the domestic and international markets for many years. After entering the China market for nearly ten years, the main market rate has remained the first for many years, and it has a deep dependence on domestic manufacturers. At present, the main ancestral farms are: Beijing Aibo Yijia Poultry Breeding Company and Shandong Zhucheng Foreign Trade Company. \x0d\( 1)AA parental breeder performance \ x0d \ Average laying rate of hens in the house: 64%. \x0d\ Average survival rate in laying period: 92%. \x0d\ 50% laying rate Week: 25 weeks. \x0d\ Weight at the end of laying: 3.45