How to prevent sudden broiler death syndrome?

Sudden broiler death syndrome, also known as sudden death syndrome and acute death syndrome, is a common disease that occurs in broilers, often occurs in broilers with fast growth and good body condition from 2 weeks old to slaughter, characterized by acute onset and rapid death, with a mortality rate of 1% 5%.

The disease is mostly related to feeding management factors such as nutrition, light, epidemic prevention, feeding, density, and stress response. The growth rate of broiler chicks is fast, and some of their own system functions (such as cardiovascular function, respiratory system, digestive system, etc. are not yet perfect) can not keep up with their development speed, resulting in the contradiction between excessive growth and imperfect system function;In addition, the protein and fat content in the feed is too high, and the unreasonable ratio of vitamins and minerals is also one of the important factors. Young chickens have a large feed intake, excessive nutrient intake in the body causes overnutrition, accelerated breathing, increased heart burden, and the corresponding increase in oxygen demand, which seriously causes the adverse consequences of rapid growth and imperfect system function, and sudden death.

Improve the feeding environment, keep the chicken house clean and hygienic, pay attention to ventilation, appropriate breeding density, keep the chicken flock quiet, minimize noise and stress, and pay attention to light time. Scientifically adjust the diet, pay attention to the balance of various nutrients, and give sufficient B vitamins such as biotin and riboflavin, as well as vitamins A, D and E in the early stage of growth. Properly control the growth rate in the early stage, try not to use feed with too high energy, do not add animal fat before 1 month of age, and try to feed as little pellet as possible.

At the age of 10 to 21 days, each chicken was prophylactized with potassium bicarbonate per gram of drinking water or mixture, and the effect was very good.

Broiler death syndrome, also known as acute death syndrome and somersault disease, is more common in broiler chickens, broiler breeders, laying hens and turkeys. Hail tombs are characterized by good physical condition and sudden death.

The disease occurs all year round, and the incidence of roosters is higher than that of hens, and in chickens that grow faster than slower.

1）**。Broiler death syndrome is related to metabolic, genetic, and nutritional environmental conditions. Incidence decreases when thiamine and biotin levels are exceeded;Incidence is higher in pellet-fed chickens than in powder-fed chickens;There is also a high incidence of early feeding of high-energy feeds to broilers.

Factors such as feeding density, ventilation, shock, and light time can all induce the disease.

2) Symptoms. There are no obvious signs before the onset of the disease, and the chickens often have a sudden onset, imbalance disorder, fall to the ground, jump, violently move their wings, make a scream, and die after 1 2 minutes.

3) Pathological changes.

Sick and dead chickens are generally large and fat, and the sacs and muscles and stomach are full of feed that has not been ingested for a long time. The liver is slightly enlarged and sometimes ruptured; The heart is dilated, the atria are particularly prominent, there are clots in it, the ventricles are generally constricted, the myocardium is relaxed, the characteristic autopsy changes of the disease are seen in the lungs, the lungs are obviously congested and enlarged, and they are dull red; There are no significant visual changes in other organs.