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Protect your cattle farm against Salmonella
Salmonella is an increasing concern across Canadian dairy operations. An outbreak can result in direct financial losses of roughly $7,000 CAD for a 100-cow dairy herd due to milk drop, treatment, and calf mortality, and without immediate biosecurity action, cumulative farm losses can rapidly climb past $15,000 CAD.
Understanding the specific strains involved, transmission routes (such as carrier cows, manure, and shared equipment), and symptoms is key to effective management and prevention in your herd.
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What causes Salmonella in dairy cattle
Salmonella is a bacterium that belongs to the Enterobacteriaceae family. There are more than 2,700 Salmonella types. In cows, infections are most commonly caused by two types:
Salmonella Dublin
Salmonella Dublin is specifically adapted to cows. It makes cows very sick and can cause serious health problems. Infected cows may remain ill for a long time.
Salmonella Typhimurium
Salmonella Typhimurium affects multiple animals, including humans. This type often causes diseases that can be transmitted from animals to people, usually through contaminated food.
Other Salmonella types can occasionally make cows sick, but these are less common.
How does Salmonella spread?
Salmonella can reach cows through direct contact with infected cattle and indirect contact through:
- Manure
- Contaminated Feed and Water: The primary transmission route.
- Environmental Exposure: Contact with contaminated soil or bedding.
- Carrier Animals: Including wildlife, rodents
- Human Interaction: Via contaminated equipment, boots, or hands.
- Contaminated equipment, tools or clothes
- Contaminated vehicles (trucks, tractors, robots)
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The symptoms of Salmonella in cattle
Salmonella infection in dairy cows and cattle typically can be recognized by the below symptoms:
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- (severe) Diarrhea, can be bloody
- Fever
- Reduced milk production
- Weight loss
- Lethargy
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How can you protect your cows from Salmonella?
Good biosecurity is the most important defense that farmers have to prevent the introduction of Salmonella to their farms.
Maintaining and optimizing hygiene for the environment, visitors, vehicles, feed and all goods entering the farm are important to prevent the introduction of salmonella
Stay vigilant and proactive in safeguarding your dairy herd against Salmonella for a healthy and productive farm.
The 5 steps to prevent Salmonella in cattle
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