Roman layer chicken, layer chicken breed, is a brown shell layer chicken supporting line bred by German Roman Poultry Breeding Co., Ltd.
2 varieties of characteristics
It has the advantages of high egg production rate, high feed conversion rate, moderate egg weight, excellent egg quality, and hard eggshell. Roman layer chickens have high production performance, and the egg production capacity is long-lasting at peak and after peak. Roman layer chickens are very docile, adaptable, have strong disease resistance, and are easy to manage.
Hebi Changsheng Poultry Industry supplies 60-90 days old Roman ash and Roman pink young chickens all year round. Please contact us if you need it
3 Production performance
Parent breeders weigh 1400 to 1500 grams at 18 weeks of age, consume 8.0 kg/piece of material (including roosters) at 1 to 20 weeks of age, have a survival rate of 96% to 98% at 1 to 18 weeks of age, have an egg production rate of 50% on the date of birth, and an egg production rate of 90% to 92% during the peak egg production period; 275 to 283 eggs at 72 weeks of age, 240 to 250 eggs from qualified breeding, and 95 to 102 mother chicks; and 68 weeks old hens weigh 2200 to 2400 grams 21 to 68 weeks of age consumed 41.5 kg / only, the survival rate of egg laying period 94% to 96%. Commercial chickens weigh 1500 to 1600 grams at 20 weeks old, consume 7.2 to 7.4 kg per piece at 1 to 20 weeks old, have a survival rate of 97% to 98% at 1 to 18 weeks of age, are 145 to 150 days old, and have an egg production rate of 92% to 94% during the peak egg production period; 295 to 305 eggs are laid at 72 weeks old, with a total egg weight of 18. 5 to 20.5 kg, the average egg weight of 64 grams, weight 1900 ~ 2100 grams; 19 ~ 72 weeks of age daily consumption of 108 ~ 116 g / piece, the ratio of feed to egg 2.3 ~ 2.4..1, survival rate of 94% ~ 96%.
Rearing management during egg laying
(1) Feeding management during the egg laying period (19 to 22 weeks old):
(1) Material change management: when the egg production rate reaches more than 5%, replace the peak period feed.
(2) Weight management: monitor weight every week, timely group calendar, to ensure that the weight meets the standard.
(3) Light management: At the end of 17 weeks, if Jinghong No. 1 weighs 1380 grams and Jingfeng No. 1 is 1160 grams, it begins to prolong the light stimulation; if the weight does not meet the standard, the increase in light is delayed, ** no later than the 19th weekend.
Before 17 weeks of age, if the weight reaches the standard in advance, the light stimulation can be increased in advance.
(2) Feeding management during the peak period of egg production (23~40 weeks old):
(1) Feeding management: Feed quality should be stable, and feed cannot be changed at will to ensure the amount of food collected by chickens.
(2) Weight management: According to the proportion of 1% per week, the chicken population weight is measured, the average value, uniformity are calculated, and the reasons for the weight change are analyzed in time, and for the chickens with an average weight weekly decline of more than 30 grams, it is recommended to add 2% vegetable oil.
(3) Desferens management: ** Greatly reduce the stress of deferens and ensure that the fertilization rate rises steadily.
(4) Epidemic prevention management: pay attention to the level of newcastle disease, avian influenza, egg reduction, and bursal antibodies in chicken flocks, and make up for them in time; regular disinfection to ensure that the environment of the chicken coop is clean and stable.
(3) Feeding management during the stable period of egg laying (41 to 53 weeks old): pay attention to antibody levels, timely replenishment; drinking water pipes are disinfected regularly. [2]
(4) Post-egg laying rearing management (54 weeks to elimination): timely selection and elimination of low-yield chickens. Prevent the occurrence of fatty liver and enteritis, and insist on disinfecting chickens every day.
(1) Roman pink shell layer chicken Roman powder shell layer chicken is a hybrid supporting high-yield light powder shell layer chicken cultivated by German Roman Breeding Company. The chicken has white feathers, strong resistance, high egg production rate, long holding time, and consistent egg color.
1 Production performance of Roman powder shell layer chicken parent generation. The survival rate at 0 to 20 weeks old is 96% to 98%, the survival rate at egg laying period is 94% to 96%, the egg production rate at 20 to 22 weeks is 50%, the peak egg production rate on feeding days is 89% to 92%, the eggs laying at 68 weeks of age are 250 to 260, and the eggs are laid at 72 weeks.
2 Production performance of the Roman pink shell layer chicken commodity generation. The survival rate at 0 to 20 weeks of age is 97%"--98%, the weight of 20 weeks old is 1 400 to 1 500 grams, the weight of the egg laying period is 800 to 2 000 grams, the daily egg production rate of 50% is 140 to 150 days, the daily egg laying rate at the peak of egg laying is 92% to 95%, the chickens in the house are 295 to 305 eggs at 72 weeks old, the average egg weight is 61 to 63 grams, and the consumption of 0 to 20 weeks old is 7. 3～7． 8 kg, the daily consumption of 110 to 118 grams during the egg laying period, the feed-to-egg ratio is 2. 1～2． 2：1。
The Roman Grey Layer Is an improvement on the Roman Pink Layer Chicken. The Roman Grey Layer Chicken overcomes the shortcomings of the Roman Pink Layer Chicken being timid, prone to fright, and pecking at the anus. The coat is white and has black spots the size of a coin. Egg-laying properties are the same as Roman powder. Resistance is improved compared to Roman powder.