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Showing posts with label physiology. Show all posts
Showing posts with label physiology. Show all posts

18 September 2018


How active is the average dog? And do extreme weather events affect their activity? 

Researchers are appealing to dog owners around the world for help.


How active is your dog? Emily Hall wants to know, and needs your help to find out! Emily Hall is a vet and PhD student investigating risk factors for canine heatstroke and how environmental conditions affect dog’s ability to exercise.  Together with Dr Anne Carter (Senior Lecturer in Animal Biology) and Dr Mark Farnworth (Associate Professor in Animal Welfare) at Nottingham Trent University, Emily is asking dog owners around the world to share information about their dog’s normal exercise routine via an online survey. Dogs of any age, any breed and any health status can participate. Live with more than one dog? Simply re-start the survey to add additional dogs’ details too. 

Please share the survey link here, open until 31st December 2018:
https://ntusurvey.onlinesurveys.ac.uk/investigating-dog-activity-levels

What did your dog do today? How about your neighbour's dog? From the moment they woke up, to the point at which they curled up in their bed (or perhaps your bed), how did they spend their day? Did they go out for a walk, or a run? Did they chase a ball, or a cat? Did they compete in a canicross race, or train for an agility competition? Did they do as much as they were doing this time last year? Do you know what they will be able to do this time next year?

Surprisingly, we don’t know very much at all about dog activity levels.

Google “how much exercise does a dog need every day”, and one site will tell you this varies from dog to dog. Another site goes as far as to provide breed specific information on just how much your dog should be doing. For example, a Beagle apparently needs over two hours of exercise daily to keep them physically and mentally fit. A canine charity suggests how many walks a dog should ideally have a day. So who do you trust, and which one is right for your dog?

None of these popular, well-respected websites list any evidence base, such as references or sources of information to support these statements.

Go a step further with a search to Google Scholar. Search “dog OR canine AND activity levels”. The results explore how dog ownership impacts human activity levels, walking and general health. The only results relating to the dog’s activity levels, explore the use of wearable technology for measuring step count and distance travelled. We just don’t know how much exercise the average dog is getting, so we have absolutely no idea how age, breed, health status or external factors such as location or weather, impact the dog’s ability to exercise.


Amongst the articles on how dog ownership impacts human health, we see at one point the British tabloids reported the National Health Service was prescribing dog walking to help people keep fit, following a study showing that older people walked more if they own a dog. Sounds good? Perhaps, until you explore the study design. Participants were required to confirm their ability to walk unaided for a minimum of 10 minutes continuously. Ok, sounds reasonable? For the dog owning participants, they had to confirm the same criteria applied to their dog. So sadly, this study is flawed because it excludes all the dog owners who don’t have an active dog. 

The key problem with suggesting dog ownership to improve human health and physical activity levels, is the lack of evidence for normal canine activity levels. Confounding that, we also have no idea how canine factors such as breed, age or health impact activity levels. To complicate things further, increasingly frequent extreme weather events such as record breaking heatwaves like those seen in parts of Australia in 2017 — and the UK, Canada and Japan in 2018 — may also impact a dog’s ability to exercise. We just don’t know. 

In planning our next research project, we hit this wall. To get past it, we need to know: how active are our dogs? What affects their ability to be active? It’s always interesting when some of these really fundamental questions have been overlooked in the field of canine science, and we’re excited to learn more.

Participate in the online survey

Through our online survey we are investigating activity levels in dogs of every age, every breed, from all over the world. We are asking owners to share their dog’s health status so we can investigate if certain health problems impact a dog’s ability to exercise. It may sound obvious that a dog with a painful hip won’t want to walk as far as a healthy dog, but what about a dog with long-term itchy skin, or epilepsy? Does their disease impact their exercise routine? 

We also want to know how the weather affects dogs. How are the heatwaves affecting dog’s activity levels? Are they exercising at all, or is the risk of heatstroke too great? At the other extreme, what happens when it snows? Do some dogs love the snow and exercise more, or do they get too cold and refuse the leave the house!
We would like all dog owners to complete the survey, no matter how old, young, or healthy your dog is. The survey can be completed as many times as required, so if you have more than one dog, re-start the survey for each individual dog. If you feel a question doesn’t apply to you, leave it blank, or leave a comment. 

Please access and share the survey using this link: https://ntusurvey.onlinesurveys.ac.uk/investigating-dog-activity-levels 

The results

The survey doesn’t close until the end of 2018, so you’ll need to be patient while we crunch the numbers, but all results will be shared via the project blog, at https://heatstroke.dog/ 

Any questions, please get in touch via heatstroke.dog@gmail.com

Emily Hall
Nottingham Trent University, UK

Images via Flickr: froderamone / carterse / blumenbiene
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18 June 2015

#SPARCS2015 Canine Science for Everyone is 19-21 June - Watch Online Free!

#SPARCS2015 Canine Science for Everyone is 19-21 June - Watch Online Free!




#SPARCS2015, the canine science conference we're hosting in Phoenix, is taking place almost now, June 19-21. 

You can watch the live broadcast for FREE just by going to http://www.sparcsinitiative.org/live-broadcast/


Watching SPARCS2015 is THIS easy
No login, just free access by going to the website. It seems too easy, but it's true!

The conference begins at 9 AM Pacific Time on Friday, June 19th, and speaker talk times and titles are listed here. Stay with us each day until 7:00 PM Pacific Time through until Sunday, June 21. Convert to your local time zone here


For a basic idea of starting times in your part of the world, we made a list:



Last year, over 40,000 people joined the second SPARCS initiative conference from all around the world. This year, we're expecting to top those numbers! 

This year the conference will feature daily themes of Learning & Memory; Dogs Around the World and Stress: Physiology, Cognition & Behavior - Full program available here.

Hear from some of the best minds in canine science from the comforts of your own home whether that be in your pyjamas from bed, sipping wine on the couch, or while dancing on your kitchen table, we don't care. Your choice.

We know it's really Phoenix - relax!

Through the 3-day event, follow the presentations, and join in using #SPARCS2015. You can share your comments and questions on Twitter by including #SPARCS2015 on your tweets.

Part of our role as hosts is bringing the online audience into the conversation, so get on Twitter and join in!

Canine Science For Everyone!

Mia & Julie

If you'd like to support the initiative that share leading canine science to you live for free, you can get a SPARCS membership, or make a donation (as big or little amount as you like!) from the 'donate' tab that will be on-screen during the broadcast. SPARCS aims to help fund future research in canine science through a series of grants, and this will only be possible with the support of those watching. If every person watching donated $5, it would count.

Here we are! In Phoenix! Cacti! Dogs! Science! We have all!


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27 August 2012

I'll show you mine if you show me yours!

I'll show you mine if you show me yours!


Yep - that adult (green coat) having more fun than any kid? That's me.
Hey Julie,

We had a fun weekend, there were miniature trains involved, so how can that be anything other than fabulous? 
I hope you did too!

Can I firstly say – !!!! – how awesome is EthoSearch?! Thank you SO MUCH for sharing that with me – I can’t believe I didn’t know about it and will certainly be starting any conversations with new students in my research group with “Hi, I’m Mia, and here is the link for EthoSearch – you’re welcome”. It’s a GREAT resource.
(source)

So you’d like me to define ‘animal welfare’, would you?

Great question! I’ll show you mine if you show me yours! I’m not sure I have a one line response, but allow me to ‘think out loud’ if you will...

I think it’s fair to say that there’s no single universal definition of ‘animal welfare’. 

I think this is partly because our understanding of how and what animals experience is changing over time and partly because different people emphasise different aspects of animal experiences so their 'angle' on/of animal welfare will also differ.

(source)
It is a term with its roots in philosophy and ethics and I was lucky enough to share great conversation over dinner with Peter Sandøe earlier this year. 

Sandøe trained as a philosopher and is currently a Professor of bioethics in Denmark. You can hear the public lecture (and see the PowerPoint presentation) that he gave in March 2012, titled ‘Animal Welfare – where does science end and ethics begin?’ via the Animal Welfare Science Centre/RSPCA Australia. It’s a fabulous presentation and well worth taking the 45min if this is a topic of interest to you.

When I refer to thoughts about the definition of ‘animal welfare’ used by people who have been working in this field far longer than me, I find:


Broom (who, incidentally, I can happily vouch for as a master of the conference dance floor!):
“The welfare of an individual is its state as regards its attempts to cope with its environment”. 
  • If coping can be achieved easily with little effort and resource, energy and time use – welfare is considered OK. 
  • If it fails to cope or coping takes much time/energy/resources, then welfare is obviously poor.

(source)
From within Sandøe & Christiansen:
  • The welfare of a sentient animal is determined by its capacity to avoid suffering and sustain fitness.
  • Not only will welfare mean control of pain and suffering, it will also entail nurturing and fulfilment of animals natures.

Dawkins:
"Good welfare is achieved when animals are healthy and have what they want
."




From within Stafford:
  • The welfare of an animal relates to its subjective experiences of life.
  • We can never know the subjective experience of a dog but we can be reasonably sure of its physical condition and can use physiological, behavioural and immunological parameters to give some indication of an animal’s experience of suffering and pleasure.
  • The strength of these emotions may be measured using physiological and behavioural parameters that appear to be common to many mammals including humans.
  • Interpretation is always subjective.



(source)

From within Grandin:
Despite debates on what animal welfare is, many guidelines  and regulations have been created to protect animal’s wellbeing. It’s a little peculiar to imagine rules governing a concept that we, in general, have so much trouble understanding and defining. Some animal welfare concepts and concerns are purely ethical and cannot be completely explained scientifically. 



I think many people would anticipate a response to your question along the lines of ‘animal welfare refers to an animal’s physical and mental well-being’. For me this is a little like your example of saying ‘aggression is aggressive because it’s aggression’ – it doesn’t really clarify what is meant. I could also say 'there is no definition, we don't know what we mean by animal welfare'... 
How would you rate this dog's welfare compared to the one below? (source)
(source)
Instead, I think I prefer to say that I understand ‘animal welfare’ as a state of an individual animal which can range from negative to positive and is influenced by its physical, behavioural, environmental and affective experiences. I’m also quite prepared to change this understanding as I continue to learn. 

What ‘good animal welfare’ refers to may need to wait to be a topic for another day!

I’m very interested to hear more about the welfare aspects of the work Marc Bekoff touched on in his article last week. Can you tell me a bit more about that? 

And remember – I’ve shown you mine, so fair’s fair... 

Mia

Referenced:
Broom, D.M. (1986). Indicators of poor welfare, British Veterinary Journal, 142 (6) 526. DOI: 10.1016/0007-1935(86)90109-0

Dawkins, M.S. (2008). The Science of Animal Suffering, Ethology, 114 (10) 945. DOI: 10.1111/j.1439-0310.2008.01557.x

Grandin, T. (Ed.) (2010) Improving Animal Welfare: a practical approach, (Book), Cabi; ISBN: 978-1-84593-541-2

Sandøe, P. & Christiansen, S. (2008) Ethics of animal use, (Book), Blackwell Publishing; ISBN: 978-1-4051-5120-7

Stafford, K. (2006). The Welfare of Dogs, (Book), DOI: 10.1007/1-4020-4362-7

© Mia Cobb 2012
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21 August 2012

It's all about objective multiples...

It's all about objective multiples...


sciseekclaimtoken-5036b68d5c7f8
First thoughts...
Hey Julie!

I hope you had a great weekend. Can I tell you more about assessing welfare? Hell to the yeah I can! 

(By the way, who gave you that photo of me working at 3:17am?!) 

I could probably blog every day until the next Canine Science Forum about measuring animal welfare - but there are so many other things I want to discuss with you, that simply won’t do.

In thinking how to respond to your question, I popped out to my bookcase (technically, it’s more of a book wall) and grabbed the first few books I thought of when I think of ‘understanding and assessing canine welfare’. There were 23 of them. Hmmm. And that’s before I even considered pulling up relevant scientific journal papers. So...

Interpreting and measuring animal welfare isn’t easy. There’s no litmus test for animal welfare, no smartphone app' that you can use to scan an animal and get a quick result as to whether its welfare is good, neutral or poor (but how cool would that be!).
It’s not easy, but it’s by no means impossible. 

Saliva collecting is easy with slobbery dogs
As scientists, we love an objective measure (one that requires minimal judgement by the person making the assessment, which reduces the chance of human bias and/or error) so we really love something that gives us numbers to analyse. This is where measurements of physical functions, like heart rate, weight, stress hormones and immune system function are great. No matter what mood I’m in, how much coffee I’ve drunk or what time of the night I’m reviewing my PhD data, I can’t alter the fact a salivary cortisol measure came in at 0.29µg/dL. Because that’s what the value is. It just is.

This dog obviously has 'good drive' (source)
Behavioural information is awesome because we can generally collect it without interfering with the animals, reducing any experimenter effect. It’s important that its measurement is still done objectively and this is where an ethological background (oh hey, like mine!) can be really handy. There are many industry-based terms which may mean different things to different people, or in different contexts. For example, in the working dog industry, terms like ‘drive’, ‘willingness’, ‘suspicion’ and ‘instinct’ are behavioural traits commonly referred to, but what is good drive? Has this boxer got ‘good drive’? How do we measure it? Is a livestock herding dog’s drive the same as a guide dog, police dog or racing greyhound’s drive? 

When we measure behaviour objectively using an ethogram, and look at frequencies (how often within a timeframe) or durations (length of time) of certain actions (like barking, sitting, walking, interaction with another dog, person or toy) we remove the human interpretation (and potential error in interpretation) from the data collection stage, which is SUPER important. So rather than rate the subjective term drive, a scientist would tend to measure objective behaviours or actions, like command-response time, running speed or directional tracking of eye movements.

(source)
Environment is also important as it gives context to the physiological and behavioural data. For example, if a dog’s cortisol reading in my PhD work was unusually high (usually associated with stress) and the video recording showed that dog barking incessantly in its kennel yard for an extended period of time, I might interpret that as a dog with a significant stress response to being kennelled. However, if I know that at that particular time of behavioural sampling and prior to the saliva collection there was a thunderstorm taking place, it might change how I interpret the data in front of me. It’s critical not to overlook even the simplest of environmental factors (like temperature) that have been shown to affect both animal behaviour and physiology.

This is truly just the tip of the ‘assessing animal welfare’ iceberg and there's always more to learn. I haven’t touched on the hot topics of ‘quality of life’, ‘affective states’, individual vs. population welfare, the interplay of public attitudes/perceptions and ethics with animals welfare or why there is currently an emphasis about avoiding bad welfare rather than promoting the good – lucky we have time on our side for all of that! 

Hopefully this has helped give you an idea of why multiple (physiological and behavioural) measures are so important in assessing canine welfare – the more information you have to help with the interpretation of an animal’s experience, the better – until that smartphone app' comes along anyway!

So how was your weekend, anyway?

Mia

Dreschel, N.A. & Granger, D.A. (2009). Methods of collection for salivary cortisol measurement in dogs, Hormones and Behavior, 55 (1) 168. DOI: 10.1016/j.yhbeh.2008.09.010

Martin, P. & Bateson, P. (2007) Measuring Behaviour: An Introductory Guide. (3rd Ed.) Cambridge University Press. ISBN: 9780521535632


© Mia Cobb 2012
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