Critical period for broiler cage chickens to prevent disease

At present, the key to hindering the healthy growth of broilers and farmers to obtain benefits in the process of broiler cages is disease. Therefore, farmers should attach great importance to disease prevention during the breeding process.

Early rearing period (0-15 days of age): The main control points of farmers at this stage are:

1. Control the ambient temperature: The chicken stage needs a more suitable and stable temperature for healthy growth, so farmers should pay attention to reducing the chicken's metabolic disorders and immune suppression caused by the brooding temperature or high or low, which will cause death. 2. At this stage, farmers should pay attention to the control of baiji and E.coli in broilers.

Mid-term rearing (15-40 days of age) At this stage, farmers need to control the main points of raising broilers:

1. Control coccidiosis, mycoplasmosis, and E. coli disease while paying close attention to bursitis. The main cause of the disease is moist litter, especially in cold winter and rainy season, coccidia eggs are easy to reproduce. Stress factors such as high feeding density, immunity, grouping, etc. frequently disturb the flock, do not pay attention to environmental disinfection, use antibiotics unreasonably, and easily cause the chicken's body resistance to decline and cause disease. 2. Control diets. To reduce the incidence of late-stage ascites syndrome in broilers, broilers that grow too fast should be restricted before 3 weeks of age.

Third, the rearing period (from the 40th day of age to the market) Once the farmers have raised to this stage, it means that the broilers are going to be marketed, and the rearing is also very important. The key points of farmer control at this stage are:

Mainly to control atypical Newcastle disease and mixed infection of E. coli. The occurrence of atypical Newcastle disease is mainly due to the decline in the immune antibody levels of chicken flocks, which reduces the chicken body's resistance to Newcastle disease virus. Most of the causes are due to improper vaccine selection, long immunization intervals, and unreasonable immunization methods. After the occurrence of atypical Newcastle disease, E. coli disease is easily induced, causing a large number of chicken deaths.