Archive for Disease

Oxidative-Stress: The Hidden Culprit Sabotaging Your Calf’s Health

Uncover the unseen culprit harming your calves. Learn how oxidative stress affects your dairy farm and what steps to take to safeguard your herd.

Summary: Oxidative stress is a big, often overlooked, factor that can quietly harm your calves’ health. It happens when there’s an imbalance between free radicals and antioxidants in their bodies. Triggers like environmental extremes, poor diets, and diseases can all contribute to this. For dairy farmers, stressed calves might not grow into productive cows, hitting your farm’s output and profits hard. Plus, it links to various health issues, leading to higher vet bills and lower milk yields over time. As dairy farm consultants, we aim to give you practical tips to combat this hidden issue, from dietary tweaks to stress-reducing practices. Preventive measures like proper diets, adequate ventilation, clean living spaces, and gentle handling can make a big difference.

  • Oxidative stress results from an imbalance between free radicals and antioxidants and can severely affect calves’ health.
  • Common triggers include environmental extremes, poor diets, and diseases.
  • Stressed calves are likely to grow into less productive cows, impacting farm output and profits.
  • Links to various health issues, higher veterinary costs, and decreased milk yields emphasize the seriousness of oxidative stress.
  • Practical strategies to combat oxidative stress include dietary modifications, maintaining adequate ventilation, ensuring clean living spaces, and employing gentle handling practices.

Picture this: You walk into your barn expecting lively calves, but instead, they seem sluggish and unwell. You’ve fed them well, kept the barn clean, and ensured they’re infection-free, so what’s going wrong? The hidden culprit could be oxidative stress—a condition where an imbalance of antioxidants and free radicals causes cell damage. This issue can severely impact young calves, affecting their growth and immune systems. Did you know calves facing oxidative stress have a 20% higher death rate and a 30% rise in respiratory illnesses? Plus, their growth rates can drop by up to 15%. But don’t worry; there are ways to address this health threat. Want to know the secret to healthier, stronger calves? Keep reading for expert tips and strategies!

The Silent Saboteur: How Oxidative Stress Is Secretly Undermining Your Calves’ Health! 

Oxidative stress can be considered a seesaw inside a calf’s body. On one side are harmful chemicals called free radicals, and on the other are antioxidants that keep these radicals in check. Usually, the seesaw stays balanced, keeping the calf healthy. But when too many free radicals and insufficient antioxidants exist, the seesaw tips, causing oxidative stress.

This imbalance is often caused by inadequate diet, illnesses, or environmental pressures, such as a poorly maintained automobile engine, which releases excessive smoke and breaks down faster. A calf suffering from oxidative stress may have difficulty growing, developing immunity, and maintaining good overall health. For dairy producers, this is a significant worry. A stressed calf will not mature into a productive cow, reducing the farm’s output and profit. Oxidative stress has been related to various health concerns, which may result in higher veterinary expenditures and lower milk outputs in the long run  (J. et al., 2017;100:9602-9610).

Environmental Extremes, Poor Diets, and Disease: The Trio Wreaking Havoc on Your Calves’ Health 

Many variables cause oxidative stress in calves, each contributing uniquely to this hidden threat. Extreme temperatures, both blazing heat and chilling cold, may increase oxidative stress levels. For example, according to research published in Animal Feed Science and Technology, calves exposed to high temperatures often have elevated levels of oxidative markers (Gaojuan Zhao et al.).

The diet also plays a significant influence. Nutrient deficits or imbalances, notably in antioxidants such as Vitamin E and Selenium, worsen oxidative stress. According to research, a shortage of these essential antioxidants impairs the calf’s capacity to neutralize free radicals, resulting in cellular damage (Surai et al., “Free Radical Biology and Medicine,” 2010).

Furthermore, infections and disorders may significantly increase oxidative stress. Pathogens cause an immunological response, which, although helpful for fighting sickness, also produces oxidative byproducts that may be dangerous if not handled properly. An investigation by Science (1973) supports this by revealing higher oxidative stress indicators in sick cattle.

These elements work together to create a situation where calves constantly battle oxidative stress, which is unknown to many farmers. Understanding and managing these effects is critical, and it’s also your responsibility as a dairy producer to improve calf health and build a strong herd.

Unmasking the Hidden Enemy: The Silent Impact of Oxidative Stress on Your Herd

Oxidative stress, the invisible nemesis of calf health, may have many negative consequences. One of the main implications is a decreased immune system. When free radicals outnumber antioxidants, oxidative damage can impair immune cell functionality, reducing the calf’s ability to fight pathogens—a study published in Anim. Feed Sci. Technol. (2014, 191: 15-23) discovered that oxidative stress significantly compromised the immune response in young calves, making them more susceptible to infections.

Another significant effect is reduced growth rates. Oxidative stress may harm cellular components crucial for growth and development, including DNA, proteins, and lipids. The study published in Science (1973, 179: 585-590) found that oxidative stress in calves caused a considerable reduction in growth rates, underlining the need for watchful antioxidant control in young animals.

Furthermore, calves under oxidative stress are more susceptible to illnesses. The cumulative damage to immune system components and general tissue health creates a breeding environment for illness. According to Free Radic. Biol. Med. (2010, 49: 1603-1616), oxidative stress may disturb the gut microbial balance, affecting overall health and resistance to gastrointestinal disorders.

Dr. Peter F. Surai, a specialist in animal nutrition and author of numerous research on oxidative stress, states that “incorporating antioxidants like Vitamin E and Selenium in the diet has been shown to bolster the immune system of calves.” This modest nutritional change may boost disease resistance and general vitality, ensuring calves grow into healthy, productive adult cattle” (Anim. Feed Sci. Technol., 2014).

Case studies support these views. According to observational studies referenced by Hoard’s Dairyman, calves with high oxidative stress had a 15% higher risk of respiratory illness and a 10% lower weight growth than those with less stress. These findings provide little doubt regarding the negative impact of oxidative stress on calf health.

Preventive Measures to Safeguard Your Calves from Oxidative Stress: Evidence-Backed Strategies for Optimal Health and Growth. By implementing these strategies, you can significantly improve the health and growth of your calves, giving you hope for a healthier herd. Preventive interventions to reduce oxidative stress in calves are critical for their health and healthy development. Implementing a complete strategy incorporating dietary changes, environmental management, and stress-reduction techniques can have a significant impact, giving you confidence in your approach to managing oxidative stress.

Here are some evidence-backed strategies: 

Dietary Recommendations 

  • Antioxidant-Rich Feed: Providing feed rich in antioxidants such as Vitamin E, Vitamin C, and Selenium can help neutralize free radicals. Research indicates that antioxidant supplementation improves immune responses and reduces animal oxidative damage (J.Dairy Sci.201710096029610).
  • Omega-3 Fatty Acids: Incorporating omega-3 fatty acids into the diet has been shown to reduce inflammation and oxidative stress. Studies suggest omega-3 supplementation can improve calf health and reduce disease prevalence (Anim.Feed.Sci.Technol.20141921523).

Environmental Management 

  • Proper Ventilation: Ensuring adequate ventilation in barns can help reduce the accumulation of harmful gases and pathogens. Good airflow is essential in maintaining an environment conducive to calf health (J Nat. Med.2015697685).
  • Clean and Dry Housing: Keeping the calves’ living area clean and dry minimizes the risk of infections and reduces the overall stress on young animals. Regular cleaning protocols and bedding changes are recommended (Free Radic.Biol.Med.20104916031616).

Stress-Reducing Practices 

  • Consistent Routines: Maintaining consistent feeding and handling routines can help reduce stress in calves. Animals are sensitive to changes, and a stable environment contributes to their well-being (Pak. J. Zool.201648923930).
  • Gentle Handling: Employing gentle handling techniques and reducing abrupt environmental changes are crucial for minimizing stress responses in calves. Training staff on low-stress handling can have long-term benefits (Sci.1973179588590).

These techniques improve the calves’ immediate health and promote long-term growth and production. Regular monitoring and modifications depending on unique farm circumstances may help optimize these tactics for the best results.

The Bottom Line

Oxidative stress is a concealed foe in the health management of calves. Environmental extremes, poor diets, and illnesses enhance oxidative stress, jeopardizing calf health and development. Addressing this problem entails providing a nutritionally balanced food supplemented with antioxidants, using environmental management measures to reduce stressors, and applying stress-reduction methods to improve overall well-being. These measurements are critical in developing muscular, healthy calves; they do not consider the importance of oxidative stress. Evidence-based practices might be the key to increasing your herd’s production and lifespan. An ounce of prevention is worth a pound of cure, and protecting your calves against oxidative stress is a proactive step toward improved health and profitability. Are you prepared to make these adjustments and notice the difference?

Learn more:

Maximizing Corn Silage Quality: Key Decisions for a Productive Dairy Herd

Maximize your dairy herd’s productivity this season. Learn key decisions for high-quality corn silage. How will rainfall and plant health impact your crop?

Soon, the golden hues of fall will spread across the fields, and the crucial corn silage harvest season will begin. This period holds immense importance for dairy producers, as it directly impacts silage quality for the upcoming year. Making informed decisions during this time not only enhances the quality of the crop but also boosts herd production. By evaluating the previous year’s growing season and considering factors like rainfall and disease, farmers can optimize their harvest techniques. These changes are pivotal, as the quality of corn silage has a direct impact on milk output. A well-planned strategy delivers high-quality feed and sets the stage for a successful dairy year.

The Rainfall Recipe: How Moisture Levels Shape Fiber Digestibility in Corn Silage 

Amount of Rainfall (Inches)Fiber DigestibilityNotes
<10 inchesHighLower lignin content
10-20 inchesModerateAverage lignin content
>20 inchesLowIncreased lignin production

The rainfall from planting to tasseling considerably influences fiber digestibility in corn silage. This time is primarily responsible for lignin formation, an indigestible cell wall component, inside the plant. Corn develops more lignin during years with above-average rainfall, which reduces fiber digestibility. Conversely, drier years improve digestibility by decreasing lignin levels. This pattern also applies to brown midrib (BMR) maize, recognized for its low lignin level. Despite genetic benefits, BMR cultivars have lower digestibility during wetter seasons owing to natural lignin formation processes. Understanding the rainfall-digestibility connection is critical for making educated silage management choices, such as high-cutting and fungicide treatments to maintain forage quality.

Strategic High Chopping: Tailoring Silage Harvest for Maximum Benefit 

Chop Height (inches)Increase in Digestible NDF (dNDF)Increase in Starch Content
7 inchesBaselineBaseline
20 inches6.7%6%

Using high chopping in corn silage production substantially influences feed quality. High chopping changes the stalk-to-ear ratio of maize plants, concentrating starch content and increasing digestible neutral detergent fiber (MDF). Wu and Roth of Penn State discovered in 2003 that increasing the cutting height from 7 to 20 inches resulted in a 6% increase in starch and a 6.7% rise in dNDF.

However, high cutting efficiency varies according to hybrid genetics and environmental factors. Studies conducted at the University of Idaho and Pioneer confirm this variability. Hybrid genetics are critical for how effectively a crop reacts to high cutting, emphasizing the need to select appropriate hybrids for specific settings. Rainfall considerably impacts fiber digestibility and should be considered when determining the cut height. Producers may improve silage quality by considering genetic and environmental variables for healthier, more productive dairy herds.

The Silent Menace: Late-Season Plant Health as a Determinant of Corn Silage Quality 

Harvest TimeSilage Quality Characteristics
Early Harvest (Before dough stage)Higher moisture content, lower starch levels, increased protein content, risk of spoilage if moisture is too high
Optimal Harvest (Dough to early dent stage)Balanced moisture and starch content, high overall digestibility, optimal fermentation qualities
Late Harvest (Beyond full dent stage)Lower moisture content, higher starch levels, but increased risk of fiber content being too high, which can reduce digestibility

Late-season plant health has a substantial influence on corn silage quality. Emerging late diseases may target the maize plant’s more digestible fractions, raising indigestible or undigestible neutral detergent fiber (ADF). This decreases the nutritional content of the hay and may impact its palatability to dairy cattle. The disease may hinder photosynthesis and reduce starch buildup, essential for energy generation in dairy cows. Reduced starch availability has a detrimental impact on milk output and herd health.

Diseases may also impact the dry-down rate, influencing the harvest date required for maximum moisture content. Deviations from typical dry-down patterns might result in excessively wet or extremely dry hay, posing storage and quality difficulties. As the season advances, it becomes more critical to check plant health. Proactive disease control, such as timely fungicide treatments and regular plant health checks, may help to reduce these hazards. Hybrid genetics also play an essential role; selecting hybrids with solid disease resistance provides extra protection against late-season illnesses.

Close monitoring of late-season plant health and aggressive disease control are critical measures for maintaining corn silage quality. These procedures provide regular and high-quality fodder feed for dairy cows, improving production and animal health.

Genetics and Fungicides: A Dual Approach to Fortifying Corn Silage Against Disease 

Hybrid genetics are critical to improving disease resistance and crop quality. The many characteristics found in hybrids improve a crop’s capacity to endure biotic stresses such as diseases and pests. Disease-resistant hybrids may help producers achieve more steady, high-quality yields. These genetic improvements often result in more vigorous plants, better ear development, and enhanced nutritional profiles, all critical for producing high-quality silage.

Additionally, selective fungicide usage is crucial in disease control. Fungicides protect crops against fungi, keeping their nutrient-rich components. Fungicide application decisions should consider plant health, environmental circumstances, and the hybrid’s disease susceptibility. When administered correctly, fungicides improve hybrids’ inherent defenses, preventing disease from impacting silage quality and production. Combining genetic resilience with proactive interventions enables farmers to keep crops healthy and productive.

Maximizing Starch Availability: The Backbone of Superior Corn Silage Quality 

Silage Processing LevelStarch Availability (%)
Poorly Processed55%
Adequately Processed65%
Optimally Processed75%

High-quality corn silage requires enough starch availability. Extensive studies have shown that starch is essential for increasing milk production. Dr. Randy Shaver of the University of Wisconsin points out that improving kernel processing may significantly increase energy from corn silage, possibly boosting milk output by roughly one liter per cow.

A well-calibrated kernel processing unit is required to do this. Experts suggest fixing the roll spacing between 1 and 3 millimeters to ensure adequate kernel breakdown and starch availability.

Furthermore, evaluating the previous year’s leftover silage is critical. Examining undigested kernels in manure helps determine prior processing efficacy and opportunities for improvement. This research establishes a standard for improved processing, assuring a consistent, high-energy forage supply for the dairy herd, increasing production and herd health.

The Bottom Line

As corn silage season approaches, making educated choices is critical for producing high-quality dairy cow crops. Reflecting on the previous year’s circumstances helps plan for this fall’s silage crop, ensuring it satisfies nutritional requirements. Rainfall has a considerable impact on digestibility. Thus, moisture levels should be monitored throughout the season. Farmers must evaluate, adapt, and optimize all agricultural operations to achieve superior corn silage quality. Investments in understanding and controlling these critical aspects will improve the health and production of dairy cows. Let us apply these lessons to our fields and strive for excellence in each harvest.

Key Takeaways:

  • Rainfall Impact: Assessing rainfall levels during the growing season can predict fiber digestibility in the silage, which impacts overall crop quality.
  • High Chop Benefits: High chopping can increase starch and digestible NDF in the silage, depending on hybrid genetics and environmental factors.
  • Late-Season Disease: Monitoring plant health late in the season is crucial, as diseases can decrease quality by affecting starch accumulation and fiber digestibility.
  • Genetic and Fungicide Strategy: Using hybrid genetics that resist disease and appropriate fungicide applications can safeguard silage quality against disease pressures.
  • Starch Availability: Optimally processing kernels to maximize starch availability can significantly boost milk production, making starch a critical component of high-quality corn silage.

Summary:

The autumn season is crucial for dairy producers as it directly impacts crop quality and herd production. Farmers can optimize harvest techniques by evaluating the previous year’s growing season and considering factors like rainfall and disease. Understanding the rainfall-digestibility connection is essential for making educated silage management choices, such as high-cutting and fungicide treatments. High chopping in corn silage production significantly influences feed quality, as it changes the stalk-to-ear ratio of maize plants, concentrating starch content and increasing digestible neutral detergent fiber (MDF). Rainfall also impacts fiber digestibility and should be considered when determining cut height. Late-season plant health has a substantial influence on corn silage quality, with emerging diseases targeting maize plant’s more digestible fractions and affecting the dry-down rate. Proactive disease control, such as timely fungicide treatments and regular plant health checks, can help reduce these hazards. Maximizing starch availability is essential for producing high-quality corn silage, and evaluating previous year’s leftover silage helps determine prior processing efficacy and improvement opportunities.

Learn more:

AI-Powered Health Monitoring: How Sainsbury’s is Improving Dairy Cow Welfare

See how Sainsbury’s is using AI to improve dairy cow welfare and farm efficiency. Can continuous video analysis change animal health monitoring?

Imagine a day when the health and well-being of dairy cows could be precisely monitored without human involvement. This is a reality thanks to artificial intelligence (AI) technology used on specific dairy farms by UK supermarket behemoth Sainsbury’s. Designed by Vet Vision AI, this technology generates health warnings and reports by analyzing continuous video footage captured by portable cameras.

This invention allows veterinarians to see and understand cows’ natural actions. It also helps them recognize early indicators of disease or stress before they become more severe. The process involves constant observation, which produces prompt health treatments, better animal welfare, and more farm efficiency. The AI system analyzes continuous video footage captured by portable cameras, using sophisticated algorithms to identify specific behavioral trends and health signals. Thirty of Sainsbury’s 170 Dairy Development Group farms now utilize the technology; more roll-out is scheduled for next year.

Investigate how artificial intelligence improves animal care and changes the dairy sector. We will explore Vet Vision AI’s technologies, examine their applications and effects, and discuss how this can affect agriculture.

Innovative AI Technology Revolutionizing Dairy Farm Surveillance and Care

Using sophisticated algorithms, the AI system analyzes a constant video feed from portable cameras positioned throughout the fields. These cameras record the cows’ everyday actions without upsetting anything. Then, an artificial intelligence-driven system examines this video and finds specific behavioral trends and health signals.

Using computer vision and machine learning methods, the system turns these observations into valid data. It picks up minute disease, stress, or pain indicators that people immediately overlook. For example, gait changes might indicate lameness; differences in laying time can suggest pain or dire circumstances.

Analyzed, artificial intelligence creates comprehensive welfare assessments and health warnings. Veterinarians and farmers get these reports, which provide insightful analysis of herd welfare. Alerts might set up quick responses, such as changing feeding plans or performing veterinarian examinations. Comprehensive reports include benchmarking data, which enables farm managers to evaluate performance against industry standards and guide long-term animal housing and management changes in direction. This ongoing monitoring method improves animal welfare and raises general dairy farming operations’ efficiency.

Transformative Benefits of Continuous AI-Enabled Monitoring 

The AI vet technology’s constant monitoring system greatly benefits animal welfare by spotting health problems early and allowing quick solutions. This 24-hour monitoring allows quick medical intervention by spotting minor behavioral changes and indicators of sickness that regular check-ups can overlook, including limited movement or eating habits.

Furthermore, this artificial intelligence system’s information offers standards for bettering farm management techniques and living situations. For dairy cows, cow brushes, for instance, increase comfort and help lower tension. The AI vet tracks their utilization and offers opinions on their potency. This information will help vets and farmers evaluate how such actions enhance animal well-being, promoting a more compassionate and effective agricultural environment.

Expanding Technological Frontiers in Dairy Farming: Sainsbury’s Commitment and Vision

Thirty of Sainsbury’s about 170 Dairy Development Group farms have adopted the “AI vet” technology, indicating their commitment to enhancing dairy farming efficiency and animal welfare through cutting-edge technologies. This first deployment is expected to expand to other farms next year.

Vet Vision AI developed the creative concept from the University of Nottingham. The university first created the algorithms allowing remote cattle well-being and condition monitoring. This intellectual basis guarantees that the technology is scientifically valid and provides consistent analysis for agricultural development.

Leading Experts Highlight Advanced AI Technology’s Profound Advantages 

Experts stress the transforming power of modern artificial intelligence technologies. Professor of Cattle Health at the University of Nottingham, Dr. James Breen, stresses how well the system watches cows without upsetting them. “The system can observe natural behaviors and convert these observations into active data, invaluable for planning interventions for foot health, udder health, and fertility,” he explains.

Dr. Tom Angel, a veterinary surgeon from Synergy Farm Health, discusses the double benefits of seeing regions requiring work and good welfare indicators. Vet Vision AI points out that welfare benefits include more cow comfort and laying times. The technology then evaluates any modifications and shows how well animals react to improvements in management and the surroundings.

Enhancing Farm Efficiency Through AI-Generated Benchmarking Reports 

Increasing farm efficiency depends on the AI system’s capacity to provide benchmarking reports. These reports are generated by constantly analyzing video footage and turning unprocessed observations into helpful knowledge. The information in these reports enables the development of thorough reports that stress areas requiring adjustment, including inadequate living circumstances or ineffective feeding practices. This data-driven approach to farm management ensures continuous improvement, promoting higher production and animal welfare.

For instance, the AI can spot cows exhibiting pain or anxiety, offering vital information for exact housing changes. Cow laying times and comfort levels allow farm managers to confirm the success of applied improvements. This data-driven “test and learn” strategy guarantees continuous improvement of agricultural methods, promoting higher production and animal welfare.

AI’s Pervasive Role in Modernizing Dairy Farming: From Data to Actionable Insights 

Particularly in dairy farming, artificial intelligence’s use combines cutting-edge technology to increase animal welfare and efficiency. Long in use in the sector, machine learning and precision farming go beyond popular generative artificial intelligence like ChatGPT. For instance, real-time production and quality monitoring via AI-driven milk collection technologies help feed and milking schedules. Wearable sensors on calves monitor estrus cycles and health indicators for quick treatments, guaranteeing the best development and reproductive success. This comprehensive use of AI is revolutionizing the dairy farming industry, from data analysis to actionable insights.

Although functional, conventional video surveillance systems lacked autonomous data analysis ability. AI has transformed this by converting unprocessed film into helpful knowledge. AI systems provide thorough reports for improved management, forecast health problems, and identify minute behavioral changes. This change from hand observation to artificial intelligence analytics provides unheard-of accuracy and knowledge for dairy production.

The Bottom Line

Dairy farming is entering a new age with creative artificial intelligence technologies. It combines data analysis and ongoing monitoring to improve farm effectiveness and animal welfare. Sainsbury’s use of AI veterinarians on specific farms is a prime example of how transforming AI can be in tracking cow behavior and health.

Continuous AI-enabled monitoring has advantages regarding timely health treatments and free observation of natural behavior without interruption. Experts such as Dr. James Breen and Dr. Tom Angel confirm the method’s observable results, including better cow welfare and foot and udder health.

The technical developments of Vet Vision AI show the tendency to add advanced artificial intelligence solutions to agriculture. Through thorough health warnings and benchmarking data, these developments promote decision-making by enhancing farm efficiency and animal welfare.

The potential of AI in the dairy sector extends beyond individual farms. By helping farmers ensure better animal care standards, increase production, and implement proactive disease control, AI is paving the way for a more sustainable and compassionate agricultural future. This future depends on our collective acceptance and support of AI solutions. As we look ahead, it’s clear that we have a call to action: to invest in AI solutions that can help us create a more humane and effective agricultural environment.

Key Takeaways:

  • Sainsbury’s has rolled out an ‘AI vet’ across 30 of its approximately 170 Dairy Development Group farms, with further expansion expected.
  • The technology, developed by Vet Vision AI, continuously analyzes footage to provide data-driven health alerts and reports.
  • Veterinarians and producers use this data for timely health interventions, optimizing housing, and improving overall farm efficiency.
  • Continuous monitoring allows for early detection of illnesses and assessment of welfare improvements, such as reduced stress from housing enhancements.
  • Experts from the University of Nottingham and Synergy Farm Health have endorsed the technology for its ability to observe natural cow behaviors and translate them into actionable insights.
  • This innovation marks a significant step in integrating AI for enhanced dairy farming, demonstrating the agriculture industry’s broader adoption of advanced technologies.

Summary:

UK supermarket Sainsbury’s has implemented artificial intelligence (AI) technology on its dairy farms, transforming the health and well-being of cows without human intervention. Vet Vision AI, designed by the University of Nottingham, generates health warnings and reports by analyzing continuous video footage captured by portable cameras. This allows veterinarians to see and understand cows’ natural actions and recognize early indicators of disease or stress before they become more severe. The process involves constant observation, producing prompt health treatments, better animal welfare, and increased farm efficiency. Thirty of Sainsbury’s 170 Dairy Development Group farms now utilize the technology, with more roll-out scheduled for next year. The technology revolutionizes dairy farming efficiency and animal welfare through cutting-edge technologies, with the first deployment expected to expand to other farms next year. The AI system also provides benchmarking reports, enabling the development of thorough reports that stress areas requiring adjustment, such as inadequate living circumstances or ineffective feeding practices.

Learn more:

HELLO! This Is Your Herd Calling. We’re Sick Today!

We are so used to leaving voice messages it can only be a matter of time until you hear.

 “Good morning Boss. I will be away from the milking line today.  If this is an emergency, please check with the veterinarian or better yet – find out why more than eight diseases are going through the barn? Have a great day. Cownt Me Out!

“It’s a Wake-Up Call for the Dairy Industry”

Regardless of how you receive the message about dairy health issues, there is no question that we have already received the wake-up call.  Whenever CowntMEout and her peers are fighting health issues, they are still in the lineup and could be having a negative ripple effect because they are contagious, costing money for treatment and losing money because of lowered production. You may laugh off the “cow calling” app on your smart phone, but disease is no laughing matter.  The incidence of disease in dairy cattle is increasing. So far the only way to tackle it has been through management practices and veterinary inputs. At least that’s where our thinking has been.  It’s time to pick up the phone!

Disease has your barn number. It’s going to call back often!

There is no acceptable level of poor health and, like telemarketing calls, you will receive many visits, at inconvenient times and with increasing frustration.  The higher incidence of health problems has risen side by side with the increase in milk yield, which has been sought after and achieved over several decades. However, along with poor health, increased lactation progress has been accompanied by reproduction problems and declining longevity. As if that wasn’t a big enough hurdle, there is also a genetic one. There is clear evidence that negative genetic correlations exist between milk yield and fertility and between milk yield and production diseases.  In other words, if selection for production continues unchanged, fertility, health and profitability are going to be put “on hold” permanently.

The Health Games.  Sick is costly. Health isn’t free.

As long as our cows continue to function by producing milk, we may be willing to live in denial of health issues.  Unfortunately, the list is growing well beyond the number one which is mastitis and includes: displaced abomasums; ketosis; milk fever; retained placenta; metritis; cystic ovaries; and lameness.  What is the incidence of each of these in your herd?  Do you keep records on all of them? We know from our personal health that you can’t fix what you don’t admit is a problem.  Those tiny signs add up until “out of nowhere” there is a health crisis.  That doesn’t work for people and it doesn’t work for bovines either.

Bad Prescription. “Take 2 Bales of Hay and Call Me in the Morning!!”

Don’t you just hate it when your doctor takes a laid back approach to your serious medical concerns?  Or does that feel like a reprieve?  You don’t have to fix what you don’t acknowledge.  Or does it boil down to who has the best answer?  The vet. The nutritionist.  Your neighbour.  It probably takes all three but we really need to pull back and start answering the questions about improved health even before mating decisions are made. Huge strides have been made in dairy breeding with the implementation of genomics. DNA analysis has only touched the tip of the iceberg for what is possible in analyzing dairy genetics.  This brings your genetics provider (A.I.) onto the health team. All that is needed is the will to change.

What can we do about it? Monitoring. Managing. Action.

You can hire someone to take care of sick animals.  You can pay for medication and extra care. Or you can decide to start with genetics and try to raise the genetic health level of your herd. All of these approaches start with the same first step.  You must monitor your animals and have detailed data on where, what, when and how health issues are affecting your dairy operation.

The hardest concept when dealing with health is that preventive measures are far better and less costly in the long run than the prescription, medicine and professional caregiver route. There needs to be more preventive action taken at the breeding stage.  Here is the first line of defence to reduce the diseases that lurk within genetic code and impact profitability now and for future generations of your herd.

The most crucial first step is to have accurate data. Good complete data that accurately identifies what is happening in the herd.  The information needs to be recorded and accurate before the cow is culled from the herd.  Dr. Kent Weigel, Extension Genetics Specialist, University of Wisconsin notes. “Current reports often don’t provide enough details to identify exact reasons why cows are culled. Animals can be recorded as ‘died,’ ‘sold for dairy,’ or ‘sold for beef,’ because of low production, mastitis infertility and so on. From that data, you might conclude that mastitis and infertility are the most common causes of culling on dairy farms. However, reported reasons for disposal can be misleading when one attempts to compare the management level of various dairy farms or to draw conclusions about the genetic merit of certain animals or sire families. Furthermore, once culled, that animal will no longer contribute information to genetic evaluations.  In effect, by culling time the most important source of health data has been eliminated.”

An ounce of Genetics is Worth Pounds of Cure?

As a result of research he has taken part in, Weigel says producers should not just consider the pounds of milk a cow produces as they weigh their decision about genetic traits.
You want cows that produce a live calf without assistance, cycle normally, show visible heat and conceive when they’re inseminated. Many cows fail to complete these and other important tasks because they have left the herd prematurely.” Weigel went on to say that some animals are culled for “multiple offenses,” such as difficult calving followed by ketosis and a displaced abomasum.  “She may then fail to breed back in a timely manner and be culled when her daily milk production falls below a profitable level,” Weigel says. “The farmer might code here as ‘sold for low production’ or infertility or disease. The reported reason for disposal is often a vague indicator of the actual problem.”

Get the Code – Fill the Prescription

Given the unfavorable genetic relationships between milk production and welfare indicators, the most effective route to stop the decline or even improve dairy cows’ welfare is by developing and adopting a selection index in which welfare related traits are included and appropriately weighted.

At a recent CDN (Canadian Dairy Network) open industry meeting, more than one presenter spoke on the genetics of disease and health. The proposed response to this complex topic is to develop one index that incorporates targeted health indicators.  We see the logic that cattle who have less mastitis or and lower somatic cell scores represent healthier animals in the herd. Until actual DNA snips are identified for specific health issues and diseases, an index that combines  SCC (somatic cell score) with fore udder attachment, udder depth and body condition score to produce the newly developed MRI (Mastitis Resistance Index) will take selection for healthier animals to a higher level.  The quantity and quality of the data contributing to these indices is key to how effectively they will identify sires with the healthiest genetics.  Isn`t it great that breeders, researchers and genetics providers are working together to move beyond the obvious.

Predict the Disease Proof by Building on What We Know Already

DNA markers for economically important traits could quantify the differences and be used to justify selection decisions on young animals with reasonable accuracy.

Short term, breeding organizations are urged to use available records to include fertility, health and longevity in a selection index in which greater emphasis should be placed on all fitness related traits relative to production traits. Genetic evaluations for health should complement and not replace genetic evaluations for yield.

“The udder is always the place to start evaluating a cow,” Weigel says. “Poor udder traits are the biggest problem, followed by poor feet and leg traits. Naturally, cows that avoid mastitis or injury to their udder are going to be in the dairy herd longer.” The major advantages of the genetic improvement for any trait are that changes are cumulative, permanent and cost-effective.

Who Will Answer the Call First?

Ultimately, the successful dairy industry of the future will maintain the gains made in milk production and make equal strides in the identification of healthy cattle. Whether it’s by choice or necessity remains to be seen. It will take everyone contributing accurate data.  The breakthroughs in production were made possible by tremendous amount of supporting data. To make similar progress in fighting dairy diseases, the same cooperation in building a database will be needed. Currently in Canada only 4 in 10 herds are participating in the capture of data on the 8 production limiting diseases.  In some European countries there is a database of mandatory disease recording that spans more than 30 years.

The Bottom Line

Some will write off the concerns raised here as over dramatic.  After all, personifying your cows as phoning in sick is beyond belief.  We all know that 21st Century contented healthy cows won`t phone in. They’ll text: “Guess what Boss? I’m healthy and I’m pregnant!”

The ones who are prepared for that call will be laughing all the way to the bank.

 

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