Why is my biosecurity program not working?

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What is critical about any biosecurity program is that you really have to commit to applying it on your farm and making sure it is consistently practiced by everyone in the company without exception.
In many cases, when everything is said and done, more is said than is actually done. Before you start to think that this article is about what your “neighbor” should be doing, and not you, please read on… Although this article is not about environmental management, it is important to remember that when turkeys are stressed or their natural defenses are endangered by exposure to ammonia, dust or unhealthy water, it is easier for a smaller number of bacteria to affect the health and performance of our flocks.
When there are many farms in the same area, it is important that everyone participate with similar programs as a cooperative effort to reduce the risk of disease.
Some diseases are more farm-specific, such as E. Coli or Bordetella, and do not spread easily from one farm to another, while others such as Avian Influenza, Newcastle and mycoplasmas spread easily from one infected farm to another and require the efforts of all contaminated farms to eliminate these agents.
The disease results from the interaction between birds, the pathogen (bacteria, viruses, fungi) and the environment.
NECESSARY STEPS FOR THE ELIMINATION OF PATHOGENIC AGENTS ON THE FARM
1.- Obtain an exact diagnosis of the disease
In order to know the best way to eliminate a disease, we have to know which agent or agents were involved. Is it only E. coli that caused the problem or was the flock also exposed to Bordetella or Newcastle previously? If we want to get rid of E. coli problems we also have to tackle other pathogens that open the door to E. coli. Some pathogens have unique strengths and susceptibilities. Knowing what the agent is capable of will put you in a better position to focus efforts to remove it from the farm.
EXAMPLE
Clostridia that causes dermatitis / cellulite can form spores making them virtually indestructible, while E. coli and Salmonella are sensitive to most contact disinfectants.
DIFFERENT DISEASES ARE TRANSMITTED BY DIFFERENT VECTORS
In the case of Avian cholera, the main sources are rodents or other four-legged pests, while for Bordetella the focus would be on the water system.
2.- When a disease outbreak occurs, the current biosecurity program should be reviewed to ensu...