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It started when two canine scientists decide to become pen pals in an era of digital media...

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Showing posts with label health. Show all posts
Showing posts with label health. Show all posts

17 May 2016

What happens to your heart when you share time with dogs?   #HeartsAligned

What happens to your heart when you share time with dogs? #HeartsAligned


Most dog owners will tell you that their dogs are good for them. They don't need a scientist to tell them that. But if you ask those same owners "How is your dog good for you?", they might struggle to find the words to describe what underlies the feelings they have about their animal companions.

I recently helped out with a demonstration (organised by Pedigree) that measured the heart rates of dogs and their owners, while separated and when reunited. The idea was prompted by an observation made by Dr Rollin McCraty, who monitored his son and their dog. We used non-invasive heart rate monitors on three dogs and their owners, to measure their heart rate rhythms in real time. We set the owner up on a couch, in front of cameras and lights in a studio, and kept their dog on the other side of a screen, out of sight, for less than two minutes. We then reunited the dogs and owners and encouraged the owner to relax with their dog on the couch, as they would usually do at home. The results? Well - see for yourself, here:


If you had asked me before the demonstration, what to expect, I would have told you "a reduction in heart rates for both dogs and owners over time (maybe 3-5min or so), perhaps after an slight initial increase of reunion excitement". I would not have predicted the close coherence in patterns that we observed within 1min of the reunion. Even as a dog owner and canine science researcher, who knows my dog helps me lead a healthier, happier life, I was astonished!

I genuinely hope this phenomenon is an area of human-animal interaction that attracts more research attention.

So how do dogs help our health?
It's currently unclear what processes underlie the coherence of heart rate patterns we observed between dogs and their owners during the Hearts Aligned demonstration. It's fascinating and something I'd love to research further. Although this was a small case study of just three dogs, the results were striking. 

These Australian dogs and their owners were randomly recruited through a routine casting call to the general public. The data are authentic. It was a delight to witness the beautiful relationship that Glenn, Alice and Sienna enjoyed with their dogs, Lyric, Juno and Jake. It would be interesting to explore the closeness of pattern alignment with other validated measures such as attachment (a term used in psychology that describes the strength of the emotional bond) between people and their dogs.


Glenn & Lyric, Alice & Juno, Sienna & Jake
Existing research suggests that pet owners exercise more, which of course is beneficial for our health. Pets have also been shown to improve cardiovascular health in other ways. For example, patting your dog can release oxytocin that acts to reduce levels of stress hormones, resulting in  lower blood pressure and heart rate. Additionally, research shows us that heart attack survivors and people with serious heart related abnormalities who own dogs may live longer than people with the same problems who don't have pets. There are also many studies suggesting animal companions are good for boosting our social resilience and mental health too.

The Hearts Aligned demonstration shows us that perhaps something as simple as relaxing in the company of our dogs at the end of a day of work or school, might also help to reduce our heart rate and offer our bodies a break from the stresses of everyday life.

Speaking for myself, I feel more light-hearted when in the company of my dog. He distracts me from every day stresses, promotes me to get outside and exercise, makes me laugh every day with his antics and gives me company, even when other family members are away. I think I'm a fairly typical dog owner and that others share these feelings. Physically, these things probably result in a lower heart rate and blood pressure than I'd otherwise experience, and I suspect I feel less stressed than I otherwise would.

Luckily, I was able to enjoy the relaxing effect of patting the beautiful Millie when I was invited onto the Studio 10 program to talk about how dogs can help us stress less on national TV:


Hearts Aligned is also fundraising for the national rescue organisation, Pet Rescue, who support over 950 shelters across Australia. We hope the video inspires people to share their own dog photos using the official hashtag #HeartsAligned. Each post on Facebook will trigger a $1 donation from Pedigree to Pet Rescue, up to $20,000. 

That's certainly enough evidence to make my heart feel good!

Mia

Further reading:
Cutt, HE, Knuiman, MW, Giles-Corti, B, 2008, ‘Does getting a dog increase recreational walking?’, International Journal of Behavioral Nutrition and Physical Activity, vol. 5. pp. 17-27.

McConnell, AR, Brown, CM, Shoda, TM, Stayton, LE, Martin, CE, 2011, ‘Friends with benefits: on the positive consequences of pet ownership’, Journal of Personality & Social Psychology, vol.101, no.6, pp.1239-1252

Headey, B, Na, F, Grabka, M, & Zheung, R, ‘Pets and human health in Australia, China and Germany: Evidence from three continents’, 2004, International Association of Human Animal Interaction Organisations Conference, Glasgow.

Nagengast, SL, Baun, MM, Megel, M, and Leibowitz, JM, 1997,‘The effects of the presence of a companion animal on physiological arousal and behavioural distress in children, Journal of Pediatric Nursing, vol. 12, pp. 323-330.

Thompson, KL, & Gullone, E, ‘Prosocial and Antisocial Behaviours in Adolescents: An Investigation into Associations with Attachment and Empathy’, Anthrozoos, vol.21, no. 2, pp. 123-137.

Wood L, Martin K, Christian H, Nathan A, Lauritsen C, Houghton S, et al. (2015) The Pet Factor - Companion Animals as a Conduit for Getting to Know People, Friendship Formation and Social Support. PLoS ONE 10(4): e0122085. doi:10.1371/ journal.pone.0122085

© Mia Cobb || Do You Believe in Dog? 2016
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7 June 2014

What the pug is going on?

What the pug is going on?


Hi Julie,

thanks for that awesome list of canine-related citizen science projects that anyone can sink their teeth into. 

I have a question for you: 

What do you see when a pug comes into your field of vision?

I'm asking you because (at the risk of inciting wrath of many) - honestly? I'm really bamboozled by some pedigree breeds and their popularity with so many people. 

How I feel
I'm not hating on pugs or pedigree dogs, and I don't mean any offence to people who hold their love of pugs close to their hearts. I really don't. I appreciate some people are very passionate about breeding certain kinds of dogs. I don't mean them disrespect. I think I just see dogs differently to them.

Pugs do make an excellent example to lay on the table for discussion when we consider inherited health and welfare issues in dog breeds. We could just as easily choose to look at any other breed where physical characteristics have been strongly selected for, like the Dalmatian, Great Dane, British Bulldog, Basset Hound, Dachshund, German Shepherd, Shar Pei, Pekingese, Neapolitan Mastiff... I could go on... but let's take the Pug as a case study today.

Flickr/pug
So tell me - what do you see?
Flickr/HelenMcDonald

I see a companion dog who can't really fit into the body we've given it. 

And by 'the body we've given it', I mean that through successive generations of human-dictated breeding that selects for an increasingly shortened muzzle (flat face), round head, big eyes, curly tail and rolls of skin, we've changed the face and body of pugs from this...

Pug circa 1890 (source)

...to this. I'll grant you this is an extreme example, but by golly, the fact that we've produced a dog lacking a defined muzzle like this makes me worry for the health and welfare of the dog. This dog really has no discernible nose or muzzle: 

Dogs should not have a concave face (source)
Does it matter? Well, if you DON'T want a dog that can breathe effectively, maybe not. 

The (in)ability to breathe
Although of course, it kind of makes for a sucky life for the dog. Not being able to breathe or moderate their temperature easily. I don't think many people in chronic respiratory distress report it feeling great. I don't think it's unreasonable to extrapolate that it causes dogs similar discomfort. The compromised breathing of these dogs isn't (as the tags on YouTube might lead some to believe) funny, nor cute, it's a red flag that says 'animal welfare problem'.

Pugs don't snore to be 'cute':



They snore because their airways are compromised.


Sometimes to the point that they can't even sleep without sitting up or having their head elevated in some other way (other examples - just search 'pug snoring' on YouTube - are by resting their head while sitting on the side of a bed/arm rest, etc.):


What stops pugs being able to breathe properly? Their nostrils - or nares - are really closed up (known as 'stenotic nares') compared to other breeds with a more typical muzzle shape.


Pug nostrils (Flickr/e_haya)
Nostrils of another small companion breed

You've given a great outline of stenotic nares and how surgery can be required to open the nostrils sufficiently, to allow adequate air flow, over on your Dog Spies blog.

Brachycephaly
To better understand brachycephalic airway obstruction syndrome, Let's get some perspective on the how selective breeding has altered skull shape in dogs, especially the brachycephalic (extremely short-nosed) breeds, like pugs: 


Domestic dog skulls (source)

Canid skulls (source)

Now, I understand many people don't see the point of directly comparing a pug and a wolf, they're not the same, I get it. But Julie, you and I both know that pugs are trying to fit almost all the same equipment in terms of brain and eyes and tongue and sensory and breathing bits and pieces inside and around that skull as any domestic dog breed. And it's just not fitting.

Ay ay ay - the eyes (Flickr/audreyjm529)
(Flickr/rickharris)

Eyes
Pugs are also prone to eye problems because their eyes are usually more prominent (sticking out more) from their reduced skull.  I mean, not only do their eyes protrude to the point that they're highly likely to get grazes and ulcers (to the surface of their eye). Pugs eyes are also prone to not staying in the eye socket. If anyone out there really wants to see, just Google Image 'pug prolapsed eye'. 

Without a muzzle
Of course, when the lower jaw and throat are so short, it can turn basic things like eating and drinking a real challenge. 

Dogs are incredibly adaptable, though - look at how Shrek has modified his behaviour to be able to drink:




Pugs muzzles have vanished faster than their dentition has been able to adapt, so their mouths are often in need of veterinary attention, or modification:
Where do teeth go in this pug's mouth? (source)
From the head to the tail
The double-curled 'screw' tail is, predictably, linked to spinal problems such as hemivertebrae, where malformed vertebrae can result in instability or deformity, putting pressure on the spinal column, causing pain, affecting mobility and sometimes defecation control as well.


Hemivertebrae x-ray
And there's more...
The excessive skin folds around their face causes skin health issues, often requiring daily cleaning. Brachycephalic dogs have brains shown to be rotated differently to other skull types... I could go on. This is not an exhaustive list of the welfare related health issues seen in pugs Julie, but I think what we've covered here is more than enough to ask people to question what is cute and what is funny and what is acceptable to select for when choosing how our companion dogs should look. 

How can people see cute?
I know that pugs have a lot of those things humans perceive as cute. But is it worth it? 
Not for me. I think we should be helping pugs regain their muzzles, make some room for their bodies to fit in again. Recently, I heard from Jemima Harrison of Pedigree Dogs Exposed, that some breeders in Germany are trying. Look at one of their dogs:


(source)
What do you think Julie - is it more athletic? Does it have more muzzle? I think it's moving in the right direction. I bet it's an awesome companion animal. 

And isn't that what these guys are supposed to be all about? 

Don't you think we should focus on having healthy, functional dogs in our lives - and if their function is to be our companions - who gives a pug about the angle of their face? So long as they can breathe, eat, drink, exercise and share our lives for a really long time?


I know ALL dogs are likely to have some health problems. Pure breed or cross breed. The difference with pugs is that these physical traits that we know are detrimental to the dogs' wellbeing are being DELIBERATELY selected for, generation after generation.

In a completely different context, someone in Australia recently said "The standard you walk past, is the standard you accept" - I know a lot of breed enthusiasts have a reputation for being defensive. They reportedly assign blame for their breed's inherited disorders away from their own activities. But ignoring these problems - walking past them - isn't helping. It's accepting them. 


(Flickr/linuxlibrarian)
I think the scientific evidence against extreme morphology - like that we see in the pug - is overwhelming. We need to do better. We have excellent monitoring tools like VetCompass (UK & Australia) and LIDA (Australia) available to help us track and better understand the health of our dogs. Wouldn't it be great to see positive trends emerging in future scientific papers about pedigree dog health and welfare?

Science has changed the way I see pugs. I don't see cute or funny, I see a dog struggling to get by because of its form. I know that I feel differently to some people about dog breeds. I know I pay more attention to the health, wellbeing and behaviour of dogs, than how they look. 

I guess I just wanted to say to you, Julie - I think it's time to give pugs - and other breeds - a better quality of life. People need to stop selecting for, and exaggerating, features that make dogs' lives less than optimal. I'd like people to have fresh eyes next time they see a pug. Look past the funny and cute and consider the experience of the dog inside.

Let's face it - unlike pug tongues - in that regard, we've got plenty of room to move.

(source)
See you when I step off the plane later this week and I promise to have my ranty-pants off by then!

Mia

Further reading:

McGreevy P. & Nicholas F. (1999). Some Practical Solutions to Welfare Problems in Dog Breeding, Animal Welfare, 8 (4) 329-341.


Collins L.M., Asher L., Summers J. & McGreevy P. (2011). Getting priorities straight: risk assessment and decision-making in the improvement of inherited disorders in pedigree dogs., Veterinary journal (London, England : 1997), PMID:


Asher L., Diesel G., Summers J.F., McGreevy P.D. & Collins L.M. Inherited defects in pedigree dogs. Part 1: disorders related to breed standards., Veterinary journal (London, England : 1997), PMID:


Summers J.F., Diesel G., Asher L., McGreevy P.D. & Collins L.M. (2010). Inherited defects in pedigree dogs. Part 2: Disorders that are not related to breed standards., The Veterinary Journal , 183 (1) 39-45. PMID: 

McGreevy P. (2007). Breeding for quality of life., Animal Welfare, 16 (Supplement 1) 125-128. 


Roberts T., McGreevy P. & Valenzuela M. (2010). Human induced rotation and reorganization of the brain of domestic dogs., PloS one, PMID:

King, T., Marston, L.C. & Bennett, P.C. (2012). Breeding dogs for beauty and behaviour: Why scientists need to do more to develop valid and reliable behaviour assessments for dogs kept as companions,Applied Animal Behaviour Science, 137 (1-2) 12. DOI: 10.1016/j.applanim.2011.11.016


White, D. (2013). Screening for hemivertebra in pugs. Veterinary Record173(1), 24-24.

Pedigree Dogs Exposed. Documentary. BBC. Available for purchase here.


Pedigree Dogs Exposed: Three Years On. Documentary. BBC. Available for purchase here.

Top photo attribution: Flickr/jonclegg

© Mia Cobb | Do You Believe in Dog? 2014



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22 November 2013

Poo Power! Global Challenge

Poo Power! Global Challenge


Hey Julie,
it's not every week I get to issue an invitation to the entire world, but that's exactly what I'm doing today!

Mia
Students invited to compete in global dog poo competition:

Poo Power! Global Challenge launches Monday 25 November 2013


Students and classes will be pitched against each other to see who can identify the most and largest dog waste 'hotspots' in their local neighbourhood in the 'Poo Power! Global Challenge'. Participants use a GPS-enabled iPhone to download the free Poo Power! App from the App Store. Their task is to identify and map dog poo 'hotspots' in dog parks and public spaces from their neighbourhood from Monday 25 November 2013. 

While the initial competition is being run for students and schools, anyone, anywhere can participate and contribute to this citizen science initiative.
Duncan & Diesel from Poo Power!
This eyebrow-raising project is a collaboration between dog poo entrepreneur Duncan Chew from Poo Power! and me (!), as a way to say thanks to all the students who voted for me to win I'm a Scientist, Get Me Out of Here! in Australia recently. The collected information will be uploaded onto the Global Poo Map and provides a platform for students to discuss the scientific, social and environmental issues of dog waste. The students are then encouraged to write a letter to their local Government representative of their findings and recommendations. Citizen science at it's finest! 

Scientific American are currently featuring Poo Power! on their Citizen Science website

"From our research only 3% of Australians see uncollected dog waste as an environmental concern," explains Duncan Chew. "When it rains, uncollected dog poo gets washed down drains, effecting water quality and habitat for native animals, as well as making rivers and creeks unpleasant for us to visit."  

I just think this is a great way to utilise the prize money from winning the I’m A Scientist – Get Me Out of Here! competition; it raises awareness of new sustainable energy sources, environmental issues and responsible dog ownership, all while increasing student engagement in a citizen science activity.
The collated information has the poo-tential to identify sites for biogas-powered lights for parks as proposed by the Melbourne-basedproject, Poo Power!, currently in development. The methane that is released from the dog waste as it breaks down inside a 'biogas generator' can be used as a viable renewable energy source.
Photo: Steven Pam

Competition prizes and giveaways are up for grabs for students whose submissions are received between 25th November and 9th December 2013. After this initial competition period closes, the project will continue to run, collecting ongoing hotspot data worldwide.
Check out everything you need to know at www.poopower.com.au
Download the full instructions to participate here

To contextualise the material for classroom lessons, teachers can download the Poo Power! Study Guide

Competition details

Individual student prizes include 2 iPod Shuffles (for the two students who log the most hotspots) and 4 Doggie Doo games (random giveaways to people mapping hotspots) during the two week competition period.
For each competing class, teachers will receive a copy of the 'Dog Poo - The Truth At Last' on DVD. For contextualising the material for classroom lessons teachers are encouraged to download the Study Guide from the Poo Power! Resources page.
Download the full instructions to participate here
Further reading:

Okoroigwe E.C., Ibeto C.N. & Okpara C.G. (2010). Comparative Study of the Potential of Dog Waste for Biogas Production, Trends in Applied Sciences Research, 5 (1) 71-77. DOI:  

Nemiroff L. (2007). Design, Testing and Implementation of a Large-Scale Urban Dog Waste Composting Program, Compost Science & Utilization, 15 (4) 237-242. Link: click here to view PDF

© Mia Cobb | Do You Believe in Dog? 2013
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26 September 2013

A Good Death

A Good Death


Elke (center) and friends
Dear Mia, 

Elke’s passing has given us all pause. Not only is there the missing of who she is -- her apple core eating and play-spinning ways -- but it also makes me examine the purpose of our pen pal blog. Being “real” about dogs and being “science” about dogs are not separate from one another; they are part of the same coin. Maybe that’s obvious, but I’m very happy (if that’s the right word) that you shared Elke’s life and passing here on Do You Believe in Dog?. From the feedback on Facebook, others agree. 

I used to have conversations with my childhood dog, Brandy. We would lie next to one another as if we were girlfriends at a slumber party, and I would explain to her that if she ever died, I would kill her. I wanted her to understand that death wasn’t a viable option for her. She would have to find something else to do when she got old. 

Playing, "Find the real dog" with Brandy
Death is universal. It is not unique or unordinary. We bring companion animals into our lives knowing that there is a finite time we will be together. But what I do think is notable about Elke (and Brandy’s) deaths, is that they were "good" deaths. They didn’t experience prolonged discomfort or drawn out pain and suffering. How animals die is part of end-of-life care, regardless of whether we are talking about companion animals, lab animals or farm animals. This is why, when I heard about the work of Dr. Stephanie LaFarge, I paused and took interest.

Stephanie LaFarge runs the ASPCA Pet Loss Hotline which offers:
  • Assistance with the decision to euthanize. 
  • Comfort and support at the time of euthanasia. 
  • Help with grieving the loss. 
  • Advice on dealing with children, the elderly or disabled individuals who are facing a death of a companion animal. 
  • Helping the surviving animals in the household to cope.
  • Assistance in establishing a relationship with a new pet. 
The first area, “Assistance with the decision to euthanize” is incredibly important. They explain: Coping with the impending loss of a pet is one of the most difficult experiences a pet parent will face. Whether your furry friend is approaching his golden years or has been diagnosed with a terminal illness, it’s important to calmly guide the end-of-life experience and minimize any discomfort or distress.” 

(Source)
Nowadays, it can be possible to extend a loved pet's life, which can be awesome! But sometimes the question becomes, "Are there any costs? Are we minimizing discomfort and distress?" 

There is nothing easy about end-of-life decisions, but a good death is as important as a good life.
  
Big hugs, 

Julie 


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