

Preventing SCC spikes during the rainy season remains possible with the right approach. Dairy farmers can keep cows healthy by following these strategies:
- Replace bedding quickly when it becomes wet.
- Maintain strict hygiene in cow housing and milking routines.
- Use a somatic cell count tester for early detection.
- Improve drainage to keep barns dry.
Immediate action leads to better milk quality and healthier herds.
Key Takeaways
- Replace wet bedding quickly to keep cows dry and comfortable. This reduces the risk of infection and supports cow health.
- Maintain strict hygiene practices, including cleaning udders before milking. Clean cows show lower SCC levels and better milk quality.
- Use a somatic cell count tester weekly to monitor changes. Early detection helps prevent widespread infections and supports herd health.
- Improve drainage in barns to prevent standing water. Good drainage keeps the environment dry and limits bacterial growth.
- Provide adequate shelter and ventilation for cows. Comfortable cows are less stressed and maintain lower SCC levels.
Wet Weather and SCC Spikes
Moisture and Bacteria Growth
Rainy weather brings high humidity to barns and pastures. This moisture creates a perfect environment for bacteria to multiply. Mastitis-causing bacteria thrive in warm, wet conditions. These bacteria are known as environmental pathogens. They pose a serious threat to cows, especially when bedding and stalls stay damp.
- Wet bedding holds moisture close to cows’ skin.
- Humidity inside barns rises quickly after rainfall.
- Bacteria spread faster in these conditions.
Farmers must recognize that humidity and moisture are the main triggers for bacterial growth. Keeping barns dry helps limit the risk of infection.
Udder Contamination Risks
Cows face a higher chance of udder contamination during wet weather. Mud and manure stick to their skin more easily when humidity is high. Dirty udders allow bacteria to enter the teat canal. This can lead to mastitis and a spike in somatic cell count.
Cows that lie down in wet bedding pick up more contaminants. Milking equipment may also transfer bacteria if not cleaned properly.
Tip: Clean udders before every milking session to reduce contamination.
Cow Stress Factors
Wet weather increases environmental stress for cows. High humidity makes it harder for cows to stay comfortable. They may feel cold or damp, which lowers their immune response. Stress from wet conditions can make cows more vulnerable to infections.
Farmers should watch for signs of discomfort, such as cows standing instead of lying down. Providing dry bedding and shelter helps reduce stress.
Cows that experience less environmental stress maintain better health and lower SCC levels.
Immediate Actions for Wet Weather
When wet weather arrives, dairy farmers must act quickly to prevent a spike in somatic cell count. Immediate steps focus on bedding, cow hygiene, milking routines, and rapid testing. These actions help maintain low SCC and protect herd health.
Emergency Bedding Steps
Clean, dry bedding forms the first line of defense against rising SCC. Wet bedding increases the risk of infection and discomfort for cows. Farmers should prioritize the following materials and practices:
- Mattresses offer comfort and cleanliness. They help lower somatic cell count but require an extra layer of bedding for best results.
- Sand provides excellent cleanliness and does not support pathogen growth. The ideal sand particle size ranges from 0.1 to 2.0 mm. Sand can be recycled, but it may present handling challenges.
- Bedding should be shallow and replaced daily to keep cows dry.
- Increase bedding depth to 3–4 inches during rainy periods to improve comfort and reduce udder contamination.
Tip: Frequent bedding changes prevent moisture buildup and limit bacterial growth.
Fast Cow Cleaning
Rapid cleaning protocols play a vital role in controlling SCC during wet conditions. Cows often pick up mud and manure, which can transfer bacteria to the udder. Effective cleaning steps include:
- Follow proper milking protocols, starting with stripping at least three squirts from each teat to remove contaminated milk.
- Apply a teat dip that covers the entire teat and maintain contact for at least 20 seconds.
- Use clean, dry towels for each cow. Wash towels with detergent and bleach at high temperatures to ensure sanitation.
- Keep towel bins closed when not in use to avoid contamination.
- Replace bedding frequently, focusing on keeping it clean and dry.
These steps reduce the risk of infection and help maintain a healthy somatic cell count.
Milking Adjustments
Adjustments to milking routines can make a significant difference in SCC control during wet weather. The following table summarizes key recommendations:
| Recommendation | Description |
|---|---|
| Pre-dip Usage | Use a pre-dip with an effective kill time. Change formulas if the same pre-dip has been used for a long period. |
| Fore Stripping | Strip all teats (3–5 squirts) to stimulate oxytocin, detect mastitis, and remove high SCC milk. Aim for 10 seconds of stimulation per cow. |
| Lag Time | Maintain a lag time of 60–120 seconds to support udder health and prevent SCC increases from improper vacuum flow. |
| Housing | Provide 3–4 inches of bedding to keep cows clean and dry. Increase bedding frequency for comfort and hygiene. |
Note: Consistent milking adjustments help prevent spikes in somatic cell count during periods of high moisture.
Using a Somatic Cell Count Tester
Rapid detection remains essential for SCC management in wet weather. A somatic cell count tester allows farmers to monitor changes and respond quickly. The following steps outline an effective testing protocol:
- Test milk samples from each group of cows at least once per week during rainy periods.
- Record results and compare them to previous readings to spot trends.
- Isolate cows with elevated somatic cell count for further evaluation and treatment.
- Use the tester to confirm the effectiveness of emergency bedding and cleaning measures.
Early detection with a somatic cell count tester helps prevent widespread infections and supports milk quality.
By following these immediate actions, farmers can control SCC and protect their cows even when wet weather threatens herd health.
Daily SCC Prevention Practices
Bedding Routine
Clean bedding forms the foundation of daily SCC prevention. Cows spend many hours lying down, so their environment must remain dry and sanitary. Farmers should remove soiled bedding from stalls every day. Fresh bedding should be topped off at least once a week and more often during rainy periods. Dry bedding reduces exposure to environmental pathogens and helps maintain low SCC.
- Remove dirty bedding daily.
- Top off bedding weekly or as needed.
- Use materials that stay dry and discourage bacterial growth.
- Ensure cows have a comfortable resting area at all times.
Tip: Consistent bedding management lowers infection risk and supports cow comfort.
Cow Hygiene
Cow hygiene plays a critical role in controlling SCC, especially during the rainy season. Clean cows show lower SCC levels compared to those exposed to mud and manure. Farmers should brush dirt from cows’ bodies and udders before each milking. Regular cleaning routines help prevent bacteria from entering the teat canal.
Maintaining hygiene throughout wet weather protects cow welfare and keeps SCC stable.
- Brush cows before milking.
- Wash udders with clean water and dry towels.
- Inspect cows for signs of contamination daily.
Milking and Teat Care

Proper milking and teat care routines are essential for SCC prevention. Farmers should focus on effective teat sanitation to reduce mastitis infections. Pre-dipping teats before milking and post-milking teat dipping help maintain milk quality. Removing organic debris from teats before applying pre-dip enhances sanitation. Forestripping before or after pre-dip prevents contamination.
A clean environment after milking minimizes teat contamination.
- Pre-dip teats before milking.
- Remove debris from teats before applying pre-dip.
- Forestrip teats to check for abnormalities.
- Post-dip teats after milking to reduce infection risk.
| Milking Step | Purpose | Frequency |
|---|---|---|
| Pre-dipping | Reduces bacteria on teats | Every milking |
| Forestripping | Detects mastitis, removes debris | Every milking |
| Post-dipping | Prevents mastitis, lowers SCC | Every milking |
Post-Milking Steps
Post-milking routines help maintain low SCC and protect cows from infection. Farmers should ensure cows stand for at least 30 minutes after milking to allow teat canals to close. Clean bedding and dry stalls prevent bacteria from entering the teat canal.
Feeds should be offered immediately after milking to encourage cows to remain standing. This practice reduces the risk of environmental contamination.
- Provide feeds after milking.
- Keep stalls clean and dry.
- Monitor cows for signs of mastitis.
Note: Daily post-milking routines support udder health and help maintain milk quality.
Facility and Environment Management
Drainage Solutions
Effective drainage keeps barns and lots dry during rainy weather. Good drainage prevents mud and standing water, which can harbor bacteria and increase the risk of mastitis. Farmers should focus on these key practices:
- Maintain clean bedding in freestalls and open lots to prevent contamination.
- Ensure proper drainage in lots and stalls to avoid wet holes and mud puddles.
- Manage manure efficiently to reduce the presence of mastitis-causing pathogens.
Tip: Regularly inspect drainage systems after heavy rain. Quick repairs help keep the environment dry and safe for cows.
Shelter and Comfort
Shelter and cow comfort play a major role in controlling SCC during wet weather. Cows need dry, comfortable places to rest. Wet surfaces and high bedding moisture discourage cows from lying down, which can lead to increased dirtiness and higher SCC. The table below shows how different factors affect cow lying time and comfort:
| Factor | Effect on Lying Time |
|---|---|
| Rainfall | Decreased lying time by 13 min per day per mm of rainfall |
| Bedding Moisture Content | Cows prefer dry surfaces; >75% moisture is uncomfortable |
| Surface Conditions | Wet surfaces reduce lying time and increase dirtiness |
Farmers should provide shelters that protect cows from rain and wind. Dry bedding encourages cows to rest, which supports udder health and lowers SCC.
Ventilation Tips
Proper ventilation removes excess moisture from barns and shelters. Good airflow helps keep bedding and surfaces dry, even during wet weather. Farmers can improve ventilation by opening sidewalls, using fans, or installing ridge vents. These steps reduce humidity and limit bacterial growth. Clean air also helps cows stay comfortable and healthy.
Note: Consistent ventilation checks ensure barns remain dry and reduce the risk of SCC spikes.
Somatic Cell Count Monitoring
Tester Routine
A regular somatic cell count tester routine helps farmers detect problems early. They should collect milk samples from each group of cows at least once a week, especially during rainy periods. Testing more often may be necessary if the weather stays wet or if previous results show high numbers. Farmers should use clean equipment for every sample to avoid contamination. Recording each result in a logbook or digital system allows for easy comparison over time. Consistency in testing ensures that changes in scc do not go unnoticed.
Tip: Regular monitoring of scc levels is crucial for early detection of udder health issues.
Tracking Trends
Tracking SCC trends helps farmers spot early signs of trouble. They should look for sudden increases in SCC, which may signal infection. The following table shows how to interpret scc results and identify cows at risk:
| SCC Range (cells/mL) | Mastitis Status |
|---|---|
| ≤ 200,000 | Negative |
| 200,000 < SCC ≤ 500,000 | Weakly Positive |
| 500,000 < SCC ≤ 5,000,000 | Positive |
| > 5,000,000 | Strongly Positive |
Farmers should pay close attention to cows that move into higher categories. Early action can prevent the spread of infection and protect milk quality.
Early Mastitis Signs
Early signs of mastitis often appear before visible symptoms. Farmers should watch for changes in SCC, as well as clots or flakes in milk during forestripping. They should also check for swelling or redness in the udder. Good pre-milking and post-milking routines, along with proper washing and drying, help reduce the risk. Quick response to early warning signs keeps cows healthy and maintains low scc.
Note: Maintaining udder hygiene through proper washing and drying is essential for preventing mastitis.
SCC Troubleshooting Guide
Rising SCC Response
When somatic cell count begins to rise during wet weather, dairy farmers must act quickly. They can use several immediate steps to control the situation:
- Maintain clean and dry housing conditions for all cows.
- Increase bedding depth to keep stalls dry and comfortable.
- Monitor individual cow SCC levels to identify high-scc cows and address problems early.
Farmers should separate high SCC cows from the main herd. They can apply proper teat dip coverage during each milking to reduce the risk of infection. Quick action helps prevent disease outbreaks and keeps milk quality high.
Common Wet Weather Issues
Wet weather brings several challenges that can cause SCC to spike. Mud and manure often stick to cows’ udders, increasing the risk of disease. Bedding may become saturated, making it uncomfortable for cows to lie down. Poor drainage can lead to standing water, which encourages bacteria growth.
| Issue | Quick Solution |
|---|---|
| Wet bedding | Replace bedding more often |
| Muddy udders | Clean udders before milking |
| Poor drainage | Inspect and repair drains |
| High humidity | Improve barn ventilation |
Farmers should check stalls and walkways daily. They must remove wet bedding and ensure cows have a dry place to rest. These steps help prevent disease and keep SCC low.
When to Call the Vet?
Some situations require professional help. Farmers should contact a veterinarian if they notice the following:
- Persistent high SCC despite management changes
- Signs of mastitis such as swelling, redness, or abnormal milk
- Multiple cows showing symptoms of disease
- Sudden disease outbreaks in the herd
A veterinarian can diagnose underlying problems and recommend effective treatments. Early intervention protects herd health and prevents further complications.
Tip: Regular communication with a veterinarian supports long-term milk quality and cow well-being.
Conclusion

Consistent SCC prevention practices protect herd health and improve milk quality, especially during wet weather. Quick action, clean bedding, and regular monitoring keep infection risks low. The table below highlights the benefits of effective management:
| Findings | Description |
|---|---|
| SCC Decline | Steady reduction in somatic cell count over time |
| Milk Quality Improvement | Higher milk fat and protein content |
| Management Practices | Essential for maintaining low SCC levels |
Farmers who make these steps routine see healthier cows and better milk. Every effort supports long-term success and cow well-being.
FAQ
What Causes SCC to Increase During Rainy Weather?
High moisture levels in a dairy environment allow bacteria to multiply. Wet bedding and muddy conditions on the farm expose cows to more pathogens. These factors raise the risk of mastitis and increase somatic cell count in milk.
How Often Should Bedding Be Changed on a Dairy Farm?
Farmers should change bedding daily during rainy periods. Clean bedding keeps cows dry and comfortable. Frequent changes on the dairy farm reduce bacteria and help maintain low somatic cell count. Dry bedding supports cow health and milk quality.
Why Is Cow Hygiene Important for Dairy Herds?
Cow hygiene prevents bacteria from entering the udder. Clean cows on the dairy farm show lower somatic cell counts. Regular brushing and washing remove mud and manure. Good hygiene routines protect cows from mastitis and improve milk quality.
What Role Does Drainage Play in Dairy Farm Management?
Proper drainage keeps barns and lots dry. Good drainage on the dairy farm prevents standing water and mud. Dry environments limit bacteria growth and reduce the risk of mastitis. Effective drainage supports cow comfort and lowers somatic cell count.
How Can Farmers Monitor SCC on a Dairy Farm?
Farmers use somatic cell count tester to check milk samples. Weekly testing on the dairy farm helps spot problems early. Tracking results allows farmers to respond quickly to rising counts. Regular monitoring protects herd health and ensures high-quality milk.