Analysis of the reasons for the decrease of egg production of chickens
Reason 1: Mainly diseases caused by feed environment, such as avian influenza, yellow dysentery, encephalomyelitis, atypical Newcastle disease and egg drop syndrome (EDS-76). At present, encephalomyelitis and egg drop syndrome rarely occur, but atypical Newcastle disease, avian influenza and yellow dysentery of poultry are more common. Avian influenza mostly occurs in1-April, and yellow dysentery of poultry occurs all year round, especially in spring and autumn. These are all caused by bacteria, and the differences are as follows: birds eat less yellow dysentery, fewer eggs, fewer soft eggs, yellow feces, more atypical Newcastle disease soft eggs, more food, less bird flu, more soft eggs, fewer eggs and thinner feces. In this case, you can use Daryun eggs.
Reasons for the decline of laying hens: There are three reasons for the decline of laying hens due to bacterial diseases: Escherichia coli, oophoritis and chronic respiratory tract. The difference is that the drop in egg production caused by Escherichia coli is very slight, with sporadic dead chickens, and there is no big problem with egg color and feces. Ovarian inflammation is a common disease in laying hens, which is serious in autumn and winter. Symptoms: About one thousandth of penis in pigeon eggs is atrophied and discolored, and its claws are dry.
Symptoms of egg drop in laying hens
1, a large group of food intake, spirit and feces are normal (the comb turns purple in the morning and returns to normal at noon), the color and quality of eggshells are normal, and the egg laying rate is reduced by about 20%.
2. In the early stage, some chickens have nasal mucus (thin and transparent as water). 1~2 days later, nasal mucus increased and some chickens purred. At this time, the feed intake began to decrease, the laying rate decreased rapidly, the color of eggshells became lighter, the quality of eggshells became thinner and the weight of eggs became lighter.
3. The feed intake and mental health of chickens are normal, and suddenly there are chickens. With the development of the disease, the number of chickens increased gradually, and the laying rate decreased by 20% ~ 30%. The eggshell becomes thinner in mass and lighter in color. Anatomy is often accompanied by vitelline peritonitis.
4. During the day, the chicken's food intake and mental state are normal, and breathing can be heard at night. Snoring occurs in the early stage (mostly near the door), the food intake decreases, and the egg laying rate decreases, which can last for about a week. The quality of eggshells is poor, and soft-preserved eggs and sand-preserved eggs appear.
What should I do if the laying rate of laying hens drops?
Daryun eggs can be added to the feed, which can quickly improve the laying rate and improve the quality of eggshells in recovery period. Obviously improve the feed conversion rate and improve the immunity of the body.