The most obvious feature of the chicken is small egg weight, but good quality, high egg production, and eat less feed, strong adaptability, is a good breeding variety of layer chickens.
Chicken liver and spleen is a new viral infectious disease of chickens, mainly infected with white egg-laying hens, but also occurs in brown-shell egg-laying egg breeds. The disease mostly occurs in summer and autumn, 20 to 58 weeks old chicken susceptibility, spread quickly, 1 to 2 weeks can spread throughout the population, resulting in a sharp decline in egg production rate or can not reach the peak of egg production, the course of the disease lasts for several weeks, the mortality rate is about 1%, causing great economic losses to farmers.
Dalong hepatic ning, used in egg poultry or breeding birds caused by drugs, toxins and other causes of hepatosplenomegaly, liver rupture and bleeding, 1 day to see the effect, 2 days to control death.
What are the advantages of powdered layer chicken?
merit:
White-shelled layer chickens are small in size, eat less, produce more eggs, have high feed remuneration and strong adaptability.
It is suitable for intensive and factory cage breeding, and the egg production per unit area is high.
The eggshell is delicate and beautiful, the egg albumin content is high, and the powder yield is higher than that of brown shell eggs.
What are the disadvantages of pink-shelled layer chickens?
shortcoming:
White-shelled layer chickens are neurotic, sensitive to the reflection of various stresses, with small egg weight, more serious pecking habits, and a higher death elimination rate, which is especially obvious in open chicken coop breeding, so it is more suitable for intensive closed chicken coop feeding.
The egg quality of the powder shell layer chicken is better, and there are certain geographical restrictions in consumption habits, and in recent years, affected by the quality of chicken seedlings, many areas where the traditional brown shell chicken is traditionally farmed also have the breeding of powder shell chicken breeds.
How to choose a high-quality layer chicken breed?
The selection of layer breeds generally follows the following principles:
1. The survival rate of brooding, breeding rate and egg laying period is high
2. The date of birth is early
3. High egg production rate during peak periods
4. The egg production rate is stable
5. Have strong anti-stress ability and disease resistance
6. Good eggshell quality, low egg break rate
7. The population of the onset of the day of production is moderately heavy and the elimination weight is moderate.
