Yellow feather broiler disease problem
Yellow feather broilers are more adaptable to the environment than white feather broilers, so their health status is relatively good, and the frequency of diseases is relatively small. However, with the continuous expansion of yellow feather broilers, the breeding direction or varieties are increasingly required for production performance. The high growth rate of the chickens makes the other indicators have a certain impact on the resistance of the disease, especially if the breeder’s concept does not change in time, or believe that the disease resistance of yellow broilers will remain at a high level. There will be many seemingly simple problems that cannot be ignored.
1 Immunity issues
Because yellow broilers have a relatively long breeding time, some immunization programs should be added. For Marek's disease and bird flu, for Marek's disease, because the disease is likely to occur after 2 months of age, it is recommended that high-quality yellow feather broilers be vaccinated with Marek vaccine immediately after hatching. Bird flu is now more problematic for laying hens and white broilers. However, in order to reduce the risk, it is recommended that they be listed in the immunization program. Other immunization programs can be comprehensively considered according to the characteristics of regional diseases. In addition, we must also do a good job in isolation, sanitation and disinfection. According to the characteristics of the epidemic in this region, we must adopt the right methods for effective immunization and monitoring, and do a good job of prevention and control of epidemics.
The immunization program must be formulated according to local conditions. The recommended reference procedure is as follows:
Day-old vaccination
7-day-old new double nose eye drops
12-day bursa drinking water
18-day-old new double drinking water
24-26 days old bursa D-78 drinking water
35-40 days old Newcastle disease I injection
40-day-old bird flu H5 and H9 injections
2 Control of common diseases
Currently, the common disease in yellow feather broilers is diarrhea. This problem may be diarrhea caused by coccidiosis or Clostridium enteritis and E. coli. The most common of these is coccidiosis. Because most yellow broiler chickens are free-range grazing on the hillside, they can eat freely. If the environment is not clean, diarrhea is expected. Both coccidial and clostridial bacteria are conditional pathogens. Especially when it is wet or at low temperatures, it is easy to cause diarrhea due to stocking. Therefore, the slope of the flock should be sterilized regularly. An effective method for controlling coccidiosis is regular prevention. Dosage, while paying attention to the cross-selection of selected drugs, to avoid the emergence of drug resistance.
In order to better control the disease, we must implement the "all-in, all-out" system. After the flock has appeared on the field, it must be thoroughly cleaned, rinsed, disinfected, and then left empty for more than a month before it is adopted for the next batch of chicks. Resolutely put an end to the practice of merging small-bodied chickens together, otherwise there will be opportunities for cross-infection of chickens of different age groups in chicken farms or chicken houses. There is no guarantee of safety in the production of chickens, once the disease is very serious. At the same time do a good job of disinfection, to thoroughly disinfect the sheds and equipment; personnel, vehicles should be disinfected; at least once a week with chicken disinfection, regular cleaning and disinfection of the environment around the shed, to strengthen litter management, Keep the litter dry and free of mildew.
The above are some of the problems encountered in the feeding of yellow broiler chickens in our service and our opinions and suggestions on these issues. We hope to arouse the attention and thinking of the majority of people in the industry and help the healthy development of yellow feather chickens.
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