Librela, known as Beransa in New Zealand, came onto the market in 2023 in both the USA and New Zealand (it has been introduced earlier in the UK and Europe, in 2021). In late 2023, I shared this post from Dr Darryl Millis about things to consider before choosing to use it with your dog.
Librela/Beransa is an injectable treatment for canine osteoarthritis manufactured by Zoetis.
The drug works by targeting and blocking the action of nerve growth factor, NGF, with a monoclonal antibody called bedinvetmab. NGF is a protein that plays a role in the pain and inflammation associated with osteoarthritis. By binding to NGF, bedinvetmab prevents NGF from activating its receptors on nerve cells, thus blocking the pain signal.
Based on the evaluation and analysis of the reports and signs seen for Librela, the recommendation is to add a Post Approval Experience (PAE) section to the current label:
Post Approval Experience Section (2024) The following adverse events are based on post-approval adverse drug experience reporting for LIBRELA. Not all adverse events are reported to FDA/CVM. It is not always possible to reliably estimate the adverse event frequency or establish a causal relationship to product exposure using these data.
The following adverse events in dogs are categorized in order of decreasing reporting frequency by body system and in decreasing order of reporting frequency within each body system:
Neurologic: ataxia, seizures, paresis, proprioceptive deficits, paralysis General: anorexia, lethargy, recumbency Renal/Urinary: polydipsia, polyuria/pollakiuria, urinary incontinence Gastrointestinal: vomiting, diarrhea Musculoskeletal: muscle weakness, muscle tremors, lameness In some cases, death (including euthanasia) has been reported as an outcome of the adverse events listed above.
In addition, we suggest that owners be advised of the adverse reactions that may occur following administration of Librela.
In the USA, a lawsuit has been filed alleging that Zoetis acted in a negligent manner in promoting its product.
In Australia, a class action lawsuit is being prepared by pet owners who state that their veterinarians described Beransa as a safe and effective drug without known side effects.
Why am I writing this post? To educate and to inform. I’m mindful that many of the commercials for human medications these days remind consumers “All medications have risks and benefits. Talk to your doctor to see if this product is right for you.”
There are veterinarians and dog owners who are reporting good results with this medication, particularly for those dogs who are elderly and for whom other arthritis medications have not worked. If your vet has recommended Beransa, be sure they have explained the possible risks to you and that you are happy to accept those risks on behalf of your dog.
Kathleen Crisley is Fear-Free certified dog massage therapist and canine fitness trainer. She has a particular passion for working with dogs and their families to ensure injury prevention and quality of life. She specialises in working with anxious and emotionally damaged dogs. Her mobile practice, The Balanced Dog, is based in Christchurch, New Zealand
Chances are you either have a dog, know someone with a dog, or spend too much time on the internet watching dog videos. Dogs. Are. Great. Maybe it’s from uniquely coevolving with humans, or maybe it’s because they’re so darn smart, agile, comforting, and cute—but there’s definitely a connection. Whenever we’re on the move, they’re on the move too—and excited about it. Even if it’s just to the kitchen, it is still a fun adventure together.
Any one of us living with a dog (a whopping 60 million—or 45.5%—nationally) has anecdotal evidence to back it up. But how can we measure the ways dogs impact our movement habits and thereby our health and wellness? Katie Potter, Behavioral Medicine Lab director and associate professor of kinesiology, decided to find out.
It all started with a little floppy-eared canine named Chloe. Potter, a slight, brown-haired woman with an athletic frame and a life-long affinity for dogs, adopted the short-haired pup in grad school, and they became inseparable. As someone studying kinesiology and behavioral health, Potter was more aware than most just how much her connection with Chloe improved her wellbeing. Time spent walking and playing with the sweet-tempered Chloe was also time that Potter spent being active and meeting new people in her neighborhood. On bad weather days, people without dogs can be tempted to stay inside in a cozy cocoon of home. But one look at Chloe’s innocent, black-and-white-splotched face had Potter pulling on her boots and reaching for a leash. Chloe also actively helped Potter once she started working in the Behavioral Medicine Lab at UMass, modeling new activity trackers, quality testing the lab treats, and reminding the team to stay in the moment and that, sometimes, you really just need to go for a walk. Potter was a doting pet parent but a scientist through and through.
When Chloe passed away in 2021, Potter had already been inspired by her to research the ways pet ownership might help people become healthier and more active. Motivated by the understanding of how activity levels contribute to or mitigate health conditions like heart disease, type 2 diabetes, and osteoporosis, Potter was convinced that the addition of multiple, small physical activities to a person’s life could lead to big beneficial outcomes. But now, she was even more driven to find out how specifically and find a way to engage a community around a shared love of pet care. Currently, less than 25% of adults in the United States meet the federal guidelines for physical activity. And children aren’t doing any better.
Professor Katie Potter clasps a new activity tracking collar around Percy’s neck while wearing her own for monitoring how close they are to each other.
Dog ownership was a potential avenue to inspire people to move on a grand scale and it excited her. “People are already convinced that animals are good for their health, so we’re trying to determine the evidence base for that,” Potter explains. As she better understands what the impact is from our dog-human bond, she can glean which small actions can be recreated as programs and introduced to the population at large.
Studies show that, to get people to make healthy, lasting changes to their daily routines, those changes need to be ones they actually enjoy. Luckily, a lot of people enjoy canine companionship. So, over the past five years, Potter and doctoral candidate Colleen Sands ’25 have designed observational studies to show how dog ownership affects/impacts physical activity levels, and the effects on specific health issues.
The big question
Does getting a dog make you more active? This is one of the biggest questions Potter is trying to answer. It is equally likely that physically active people get dogs because dogs fit within their already active lifestyle. But how do you test for that?
One of the most difficult parts of this type of experimentation is obtaining data on how active people are before they get a dog. “There’s currently a lack of studies that look at how getting a dog changes the owners’ activity and health—because they’re so logistically challenging,” says Potter. “You have to get data on folks before they bring the dog home and then follow them over time.”
Fortunately, a Massachusetts-based organization called Last Hope K9 Rescue agreed to work with Potter on a 12-week “BuddyStudy.” The study monitored 11 participants for six weeks as they experienced fostering a new dog. Starting out with baseline measurements—their average daily steps and their perceived stress levels or signs of depression (via questionnaires)—Potter was then able to see any noticeable changes at their mid-point check in.
It should be noted that many of the program participants actually ended up adopting their foster dogs through Last Hope K9 Rescue, making the measurements taken at the end of the study all the more interesting. Though it was a small study, the results were promising. Nearly half of the participants saw large increases in physical activity and nearly three-quarters had improvements in mood after fostering their pups. More than half of the participants met someone new in their neighborhood on a dog walk. Most participants adopted their foster dog after the six-week foster period, and some maintained improvements in physical activity and well-being at the end of the study.
With the promising data from that study, Potter was able to see which metrics and methods were the best for helping find answers to her original question—and many others that popped up throughout this experiment. She hopes to do more studies with foster dogs and cats in the future.
An interest in healthy aging
Armed with questions and hypotheses that occurred to her during one of her earliest studies, Project Rover,Potter decided to double down on her interest in how dogs impact physical activity and health in the older population. In Project Rover, Potter had worked with people over the age of 60, but now she wanted to push the age up a bit higher to see how an older generation would be impacted. She recruited 70- to 84-year-olds to be part of a new observational study called the Lifestyle, Brain, and Cognitive Health Study. The participant pool was divided into dog owners and those who were dog-free. Then, for one week, they were asked to go about their normal lives while activity monitors tracked their activity levels. At the end of the week, participants returned to UMass to have a brain scan and take the NIH Toolbox Cognition Battery to test their cognitive function and fluid cognition abilities like problem solving, response time, and ability to adapt to new situations. Ideally, at the end of this type of study, Potter would see improvements across the board with faster response times, more creative problem-solving ideas, and faster transitions to situations.
Though the group size for this study was too small to make generalizations about the results, Potter is excited about the social connection aspect of the study, since most participants said they had met people through their dog and that those people had become friends. The benefit of having the small sample size is that Potter was able to test her methodology, as she plans to conduct wider studies.
What about the kids?
Did you know that the Centers for Disease Control and Prevention (CDC) recommends kids exercise for at least 60 minutes a day? Unfortunately, roughly 40% of children in the United States fall well below that, contributing to a wave of preventable health issues, including mental health impacts. Sands, working on her dissertation under Potter’s tutelage, thought, if we want to create interventions for people, why not start them young? She set out to design the Kids Interacting with Dogs (KID) study, a child-friendly pilot to establish a baseline—starting with children who already had a family dog.
To start, Sands met with participating families over Zoom for orientation. “While the dogs were certainly not required to join the remote study orientation calls,” Sands explains, “most of the kids were really excited to introduce me to their dogs.” Even though it was a remote study, she did get to witness the strong family-dog bond firsthand.
Over a one-week period, the study tracked how frequently kids played with the family dog through data received from Actigraphs—Bluetooth accelerometers that also monitor proximity. Every member of the family wore them (Fido included). And, to Sands’s delight, many of the children immediately decorated the monitors for both them and their dogs. By processing the data coming in, Sands was able to see how many cumulative minutes the kids spent with the dogs, how much they walked, and how actively they played.
Surprisingly, only one-third of the time kids were active with their dog was spent walking and (maybe less surprising to anyone who spends time near children or once was one), the other two-thirds were spent playing. That is notable because adult-focused studies show that owners spend the majority of their active time walking their dog and very little time engaged in play. This kid-specific study opens up new ways to explore the development of future physical activity interventions based on play.
Down the leash
Both Potter and Sands are passionate about finding enjoyable interventions that can improve wellness on a large scale. Potter’s dream is to set up an assistance program that pairs students with older or disabled members of the community who need a little help caring for their dogs. Both the community members and the students would reap the benefits of having a dog in their orbit, as well as experiencing a new, intergenerational human connection.
“One of the cool things about this line of research is that even though physical activity is our primary focus, there are social, emotional, and even academic benefits in human-animal interaction,” Potter shares. “So, there’s the potential for this much more holistic impact.” She says, “This can open up opportunities to areas where we can potentially collaborate with the researchers that are more focused on the animal side of it.” On a grander scale, Potter and Sands hope their research can create a viable, reproducible, scalable public health intervention program based on Potter’s idea. They also hope their research can inform changes around rental properties so people who want to be pet parents can find more housing options.
For now, we can all use these findings to inspire our own interventions. “When the bond is there, people will go to the end of the earth for their pet,” says Potter. It’s heartening to learn that bettering our pets’ lives can improve our own health and wellness too. And they don’t need you to go to the end of the earth for them—just to the end of the block.
Coming through the door from a hard day’s work to be greeted by the irrepressible joy of a dog bounding towards you, like they haven’t seen you in years, can be as satisfying as returning to an actual human partner, according to a new study.
Raising a furry companion like a cat or dog can bring you the same psychological benefits as getting married or earning an extra £70,000 a year, researchers at Kent University have found.
Using the “life satisfaction” approach, economists can translate intangible assets like friendship and family into a hypothetical income.
The research conducted on 2,500 British families found that owning a pet was linked to an increase in life satisfaction of 3-4 points on a scale of 1-7, similar to values obtained for meeting with friends and relatives regularly.
The study’s authors say they suspect that many people don’t actually realise how important their pets are for them (Getty Images/iStockphoto)
Economists have shown that marriage, compared to being single, is worth around £70,000 a year. Separation, on the other hand, is equivalent to around minus £170,000 a year.
Dr Adelina Gschwandtner of the University of Kent, the lead author of the new study, toldThe Timesshe was inspired by a paper that put a price tag on human friendship.
“I thought, ‘well, if it’s possible for friends, why not for pets?’”
“I understand why some people might be sceptical [about the £70,000 value],” she said.
“Given that pets are considered by many as best friends and family members, these values appear to be plausible … I also suspect that many people don’t actually realise how important their pets are for them.”
Simply stroking our pets can lower the levels of the stress hormone cortisol in our bodies, leading to a calmer approach to life and thus positively impacting our blood pressure and make you less likely to suffer from clinical depression.
Dr Gschwandtner added: “This research answers the question whether overall pet companions are good for us with a resounding ‘Yes’.
“Pets care for us and there is a significant monetary value associated with their companionship. This information can be used for health care practice and policy aiming to increase well-being and life satisfaction of humans involving pets.”
The research follows a 2022 Pets at Home study that found more than one-quarter of people asked preferred to see their pet over their partner after a day at work.
Loneliness has become an increased concern nationally since the pandemic. However, studies have shown companionship with dogs can greatly reduce the effects. (VCU Center of Human-Animal Interaction)
Long known as man’s best friend, dogs are being embraced even more now as a means of combatting loneliness. In one study, frequent interactions with dogs, either through ownerships or through long-term interventions, have been associated with positive psychological outcomes across the human lifespan.
“They are skilled at socializing with humans, sensitive to our emotional states and gestures – they can communicate using complex cues and form complex attachment relationships with humans,” said Nancy Gee, Ph.D., C-AISS, professor of psychiatry and the director of Virginia Commonwealth University’s Center for Human-Animal Interaction and Bill Balaban Chair in Human-Animal Interaction. “Their attachment to their human owners mirrors that of human babies to their mothers.”
Gee, whose been studying the relationship between therapy dogs and humans for more than two decades, spoke with VCU Health News about how interactions with dogs can relieve loneliness and increase connection with others.
How can dogs combat human loneliness?
Dogs are thought to fulfill the four roles of an attachment figure: They are enjoyable, comforting, missed when absent and sought in times of distress. Adults and children alike confide in their pets because they relieve us from the worry of confidentiality, judgments, or meeting expectations.
When humans interact with a dog in a calm way – where they are stroking the dog and making eye contact, or even talking to the dog – we see that both species release oxytocin (bonding/feel-good hormone), and their cortisol (stress hormone) levels drop. Additionally, their blood pressure and muscle tension lower, and their mood elevates.
When you combine these responses together, it indicates the interactions are relaxing and enjoyable, which helps to reduce a person’s overall experience of loneliness.
Is there a difference from other animals?
Probably, yes, but there is not enough research on the subject to know for certain. We do know that dogs are unique in the animal kingdom. Through domestication and selection, dogs emerged from the grey wolf over a period of at least 35,000 years, and there is probably no other species on the planet as well-matched to human social needs as dogs.
What are common types of service dogs, and do they differ in addressing human loneliness?
There are three prominent classifications:
A Service Dog (also called an Assistance Dog) has one handler who has a medically recognized disability. The dog is specially trained to assist that one person (their handler) with some aspect of that disability. For example, some dogs are trained to alert a person with a seizure disorder that a seizure is about to occur. This will allow the person to take medicine, call for assistance and/or get into a safe place/position so that they are not harmed during the actual seizure. Service Dogs are covered under the American’s with Disabilities Act and are granted access to public facilities and housing that otherwise excludes pets.
An Emotional Support Animal can be any animal species and requires no specific training. An ESA supports one person with a mental disability by comforting that person in a way that reduces symptoms. ESA status is determined by a mental health professional who writes a letter attesting to the animal’s role and housing status if pets are otherwise not allowed. However, ESAs are not permitted any other public access.
A Therapy Dog is handled by one person, but the dog’s job is to interact with many people who may benefit from the interaction. Therapy dogs, like those in our center’s Dogs on Call program, are granted access to facilities and transportation based on the permission of the administration of the facility or transportation provider, and the requirements of the program in which the dogs participate.
Currently, there is very little research that compares the three classifications of animals and the effects of SDs or ESAs in reducing loneliness. However, Dogs on Call specifically, and other therapy dogs in general, have been found to significantly reduce loneliness in the people they visit.
Does human age matter in regard to loneliness and the benefits of interacting with dogs?
We have results back from our own randomized clinical trials showing that for older adults and for adults with mental illness, interacting with Dogs on Call dogs and handlers is effective at reducing loneliness.
We’ve just completed data collection on our pediatric study, so we don’t know the answer just yet, but we have reason to believe that across the human lifespan, interacting with a therapy dog can reduce loneliness. Additionally, one study showed that adolescents derive more satisfaction from, and engage in less conflict with, their pets than with their human siblings.
Source: VCU Health (Virginia Commonwealth University)
Researchers have uncovered new insights into the relationship between dogs and their owners. A study published in Scientific Reports has found that a dog’s heart rate variability adapts to its owner’s heart rate variability during interaction. This physiological “co-modulation” suggests that emotional states are shared between dogs and their owners, offering new understanding of the deep bond shared between the two species.
The relationship between dogs and humans has evolved over thousands of years, creating bonds akin to those between human caregivers and children. Researchers sought to explore whether these bonds are reflected in shared physiological states, such as heart rate variability, which indicates the balance between relaxation and arousal in the autonomic nervous system.
While prior studies examined behavioral and hormonal synchronization between dogs and humans, little was known about their physiological synchrony. By investigating this co-modulation, the researchers hoped to provide a clearer picture of the emotional and physiological connections that underpin the human-dog bond.
“I have always been fascinated by human-animal relationships and the close attachment bonds we can form with non-human animals, both from personal experience and from a scientific perspective. The dog-human relationship is particularly intriguing because the domestication of dogs has resulted in their remarkable sensitivity and ability to interpret human gestures and emotions,” said study author Aija Koskela, a researcher at the University of Helsinki and University of Jyväskylä
The study included 25 dog-owner pairs, focusing on cooperative dog breeds such as retrievers and herding dogs, which are known for their sensitivity to human cues. Dogs and their owners were recruited through social media and a cognitive testing company. Exclusion criteria for participants ensured that neither dogs nor owners had health conditions or behaviors that could interfere with the study’s measures. The owners, mostly women aged 40.8 years on average, lived with their dogs as indoor pets, and most of the dogs had been trained in dog sports like agility or obedience.
In a controlled environment, researchers attached heart rate monitors to both dogs and owners to measure heart rate variability. The pairs participated in six different tasks designed to mimic natural interactions, such as playing, stroking, training, and sniffing. These activities varied in physical intensity to distinguish the effects of emotional arousal from physical activity. Heart rate variability data was collected and analyzed alongside measures of physical activity using synchronized monitors.
Owners also completed questionnaires to assess their temperament and the quality of their relationship with their dogs. These tools allowed researchers to investigate how individual differences in personality and emotional closeness influenced the physiological responses of both dogs and owners.
The researchers found that dogs’ heart rate variability and activity levels were closely linked to their owners’. During periods of rest and calm interaction, such as before and after structured tasks, dogs and owners showed significant co-modulation in heart rate variability. This suggests a shared emotional arousal, likely influenced by the strong bond between the pairs. During more physically demanding activities like playing, the correlation between the pairs’ physical activity was stronger, but heart rate variability remained influenced by the shared emotional context.
“I believe this study confirms that the emotional mechanisms underlying dog-human interactions are similar to those in human attachment relationships, where emotions are shared and transmitted between attachment figures,” Koskela told PsyPost. “From a practical standpoint, I think it’s helpful for dog owners to remember that their emotions can greatly influence their dog’s behavior. We often focus so much on the dog’s actions that we overlook the emotional state driving them, or how our own feelings influence our dog.”
“For example, trying to calm a child while feeling upset yourself often doesn’t work—whereas calming yourself first helps the child feel secure. Likewise, dogs are highly attuned to human emotions. Being mindful of your emotional state can make challenging situations easier for both you and your dog.”
Interestingly, several factors shaped these physiological connections. For example, the dog’s heart rate variability was influenced by its size, the duration of its relationship with its owner, and the level of shared activities reported by the owner. Larger dogs and those living with their owners for a longer time tended to have lower heart rate variability, suggesting greater arousal or excitement during the tasks. Owners who scored higher on measures of negative affectivity (a tendency toward experiencing negative emotions) had dogs with higher heart rate variability.
Notably, the physiological synchronization between dogs and owners occurred only within the established pairs. When researchers randomly matched dogs with non-owners, this connection disappeared, confirming that the bond between a dog and its owner uniquely facilitates this co-modulation.
“Quite a few things surprised us,” Koskela said. “First, it was fascinating to observe that the emotional connection between dogs and their owners could be detected at physiological level over a relatively short time—the study lasted just an hour. Previously, emotional synchronization between dogs and owners has been studied at hormonal level over much longer time periods. Our study shows that this emotional connection can be detected in a very short time period and I think it’s amazing.”
“Second, it was surprising that the dog’s physiological state measured as heart rate variability explained the owner’s heart rate variability more than the other factors generally affecting the heart rate variability like age or weight. Lastly, I find it interesting that dogs belonging to owners with higher levels of negative affectivity, one of the four temperament traits, were more relaxed throughout the study. This could be because such owners often form very close emotional bonds with their dogs, offering also emotional support for the dog.”
The study highlights the physiological connection between dogs and their owners, suggesting that emotional and autonomic states are interlinked during interaction. However, there are some limitations to consider.
“The current study was limited by its relatively small sample size,” Koskela noted. “However, statistical analysis confirmed the reliability of the findings. Our sample also primarily consisted of female dog owners, which is noteworthy since an owner’s gender may influence both dog behavior and physiology. Furthermore, the sample likely reflects a bias toward active and committed dog owners, as most of the participants practiced dog sports and volunteered for the study in their free time without monetary compensation. Therefore, it is plausible that dog-owner dyads with more functional relationships than average are overrepresented in this study.”
Looking forward, Koskela said that she is “interested in studying emotional synchrony between dogs and their owners in greater detail, particularly on a moment-to-moment level and the factors that modulate it (e.g., personality traits or time lived together). More broadly, I aim to identify the factors associated with functional dog-owner relationships.”
“It’s noteworthy that we studied only cooperative breeds, which are known to be especially sensitive to human behavior and emotions. It would be fascinating to study more ancient breeds to determine whether their emotional states are similarly modulated by their owners.”
A new study from Trinity College Dublin suggests that older adults who regularly walk their dogs show improved balance and fewer falls compared to their peers.
The research, published in the Journals of Gerontology, examined data from over 4,000 community-dwelling adults aged 60 and older, finding that 15% were regular dog walkers, defined as walking their dogs four or more times per week.
“Regular dog walking was associated with better mobility, with a 1.4 second faster Timed-Up-and-Go test on average,” the study noted. “Regular dog walkers also had a 40% lower likelihood of unexplained falls over the last 2 years and a 20% lower likelihood of current fear of falling in fully-adjusted regression models.”
The research also found that simply owning a dog without regularly walking it did not provide the same benefits. Dog owners who didn’t regularly walk their pets showed no reduction in mobility problems or falls, suggesting the physical activity of dog walking, rather than pet ownership alone, drives the improvements.
Regular dog walkers in the study tended to be younger, used fewer medications, and had lower rates of heart disease. They were also more likely to have never smoked, suggesting an overall healthier lifestyle profile.
The study observed that almost 13% of participants owned dogs but didn’t walk them regularly. This group showed higher rates of mobility concerns and fear of falling compared to regular dog walkers, further emphasizing the importance of consistent dog walking activity.
The findings add to growing evidence that dog walking can serve as a consistent form of physical activity that helps maintain mobility and reduce fall risk among older adults.
Note from DoggyMom: I published a post in November 2024 about scent detection dogs trained to identify tubers of an endangered orchid in New South Wales (Australia). Bill Grimmer, who is featured in this article, reached out to me to make me aware of the use of dogs in Alberta. “We had similar success with the tuber “Clubroot” affecting a $12 billion operation for canola oil.” Bill also says that training of the detector dogs has become a service business for dog trainers in the area. Another success story on using the natural abilities of dogs to benefit humans and the environment.
Any dog lover knows that dogs can do amazing things. Add to that list the ability to detect clubroot in canola.
“The idea behind using dogs as detectors has been around for quite a long time. Using them to detect crop diseases has been around for the last five years or so,” said Michael Harding, plant pathologist with Alberta Agriculture and Forestry.
Last spring, Harding got a cold call from a dog trainer in New Brunswick wanting to connect with a plant pathologist to see if dogs could be trained to detect crop diseases.
After some discussion, he and two trainers from Grimmer’s Canine College in Shediac, New Brunswick, Bill Grimmer and Mario Bourque, agreed to conduct a trial on clubroot. Four dogs — all young with high energy and eager-to-please dispositions — were selected and trained using clubroot galls.
Bill Grimmer, a dog trainer from New Brunswick, walks with Adi while the Goldendoodle sniffs out clubroot in a canola field. Photo: Morton Molyneux
“They started doing the clinical training to teach the dogs to alert them when and where they detected the clubroot gall,” said Harding. “The dogs are smelling these things all the time anyway. The trick is just getting them to alert you when they smell what it is you want to detect.”
Once the dogs were trained to the scent indoors, the training moved outdoors, a much more challenging environment because of all the visual, auditory and scent distractions.
“After a couple of months of clinical training indoors and outdoors, they were ready to be field tested,” said Harding.
Funding was an issue but was resolved when Harding connected with Ken Coles, general manager of Lethbridge’s Farming Smarter, who secured a Canadian Agricultural Partnership grant.
In October, the trainers and dogs landed in Alberta and visited four canola fields — two in the southern Alberta brown soil zone, and a pair in the black soil zone near Edmonton. The dogs selected for the project were two-year-old Josie, a German shepherd, and Adi, an eight-month-old Goldendoodle rescued from the humane society.
“When the trainers were here, they showed us using their clinical training aids that the dogs were able to detect clubroot,” said Harding. “They have trained the first two dogs in the world that can detect clubroot by scent.”
Dogs will alert by barking, putting their nose on the infected canola plant, or by digging. It was surprising how quickly the dogs were able to master the task, said Harding.
“The dogs came from New Brunswick, and had never set foot in a canola field before and there were a few distractions, like gophers.”
While Adi and Josie are good examples of “working dogs,” almost any breed could be trained to do this, said Harding.
“Some dogs have some advantages when it comes to scent detection,” he said. “All dogs have the capacity to do this. It’s just a matter of rewarding the behaviour that you want.
“You could as easily train a Chihuahua or a Great Dane but we’re looking for dogs that can move through fields easily and be easy to transport.”
The trainers put GPS collars on the dogs, so they could map the fields and see where the dogs stopped. The results can then be mapped and shown on an iPad.
There are several advantages to using dogs to sniff out clubroot. First, it’s quicker than having a person walk a field looking for stunted or damaged plants, and then digging them up to see if they have galls. It might also be a way to detect the presence of the disease when an infestation is at a very early stage.
Then there’s the cost factor.
“Once you’ve borne the upfront cost of the dog, it’s not that expensive to keep a dog around, compared to what it costs to provide salaries and benefits for employees who are doing scouting,” noted Harding. “You could add multiple inspectors to your inspection crew and not have it be as financially onerous if you were going to add human inspectors.”
While some canola producers might like to train their dogs to do early identification of clubroot, another option is for individual counties to train dogs in order to beef up their level of scouting. Dog trainers might also want to add clubroot detection to their roster of services.
“This was a research project to determine feasibility and so our part in it is done,” said Harding. “If there is something valuable that the industry is going to run with, we hope that this is the case.”
There are skeptics who don’t believe the industry will be keen to adopt sniffer dogs, but Harding has ideas for additional studies to build on this first successful trial.
“We’re wondering if it’s possible to teach dogs to detect resting spores in the soil,” he said. “What if we could train them to detect spores above a certain threshold in the soil and then they could scout equipment to determine whether it was clean or needed to be washed?”
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