purdue study on bloat

This forum is for dog lovers seeking everyday advice and suggestions on health-related issues. Remember, however, that advice on a public forum simply can't be a substitute for proper medical attention. Only your vet can say assuredly what is best for your dog.

(Page 1 of 2: Viewing entries 1 to 10)  
Page Links: 1  2  

Classic Beauty
Barked: Tue Jul 14, '09 4:15pm PST 
Purdue Study on Bloat in Dogs

Recent studies are shedding more light on gastric dilatation volvulus
(GDV), otherwise known as bloat. GDV is the second leading cause of death
in large-breed (50 - 99 pounds) and giant-breed (100 pounds and over) dogs.
Approximately one in four large-breed dogs and one in five giant-breed dogs
may develop GDV during their lifetime, with some breeds at even higher
lifetime risk. GDV strikes suddenly and has a mortality rate as high as 30
In GDV there is a rapid accumulation of air in the stomach, causing
distention and often rotation of the stomach, cutting off blood supply at
both ends and causing the dog to go into shock. GDV is an acute emergency
and rushing the dog to immediate veterinary care is essential. The risk of
a dog developing GDV increases with age. Other factors that increase a
dogĀ“s risk are having a first-generation relative with a history of GDV,
having a deep and narrow chest or abdomen, being thin, experiencing a major
health problem before age 1, and having a fearful or nervous temperament.

Research primarily at Purdue University by Dr. Larry Glickman, VMD, Ph.D,
(an AKC Excellence in Canine Research Award winner), and Dr. Malathi
Raghavan, DVM, Ph.D. has identified a number of feeding management and
dietary factors that increase the risk of GDV. These include eating only
one meal a day, feeding only dry dog food, feeding food with only small
particles, and feeding a large volume of food per meal. Other feeding
factors found to increase the risk of GDV were eating rapidly, increased
physical activity before and eating, restricting a dogs water intake before
and after eating, moistening dry food before feeding, and eating from a
raised feeding bowl. Thus, some of the recommendations commonly made to
prevent GDV were shown by the research to actually increase
the risk of GDV. In the Journal of the American Veterinary Medical
Association, Vol. 17, No. 10, Glickman wrote, "In addition, in univariate
analysis, many of the recommendations commonly made to prevent GDV, such
as raising the food bowl, moistening dry food prior to feeding, and
restricting water intake before and after feeding, were associated with a
significantly increased risk of GDV."
Recent research, not yet published, has shown an increased risk of GDV in
dogs who consumed dry foods containing fat among the first four
ingredients, and an increased risk in dogs who consumed dry foods listing
citric acid as a preservative - with this risk rising when foods with
citric acid were moistened. Although not statistically significant,
researchers found that a modest increase in risk of GDV was seen with the
consumption of dry foods that listed more than one corn ingredient among
the first four label ingredients, while in contrast, a pattern was observed
of decreased GDV risk with an increasing number of protein ingredients of
animal origin, including beef, poultry, lamb, and fish among the first four

* Feed two or more meals a day
* Feed no more than one cup per 33 pounds of body weight per meal when
feeding two meals a day
* Feed an energy-dense diet, to reduce volume, but avoid a diet where a
high amount of calories are from fats.
* Feed a variety of different food types regularly. The inclusion of human
foods in a primarily dry dog food diet was
associated with a 59 percent decreased risk of GDV while inclusion of
canned pet foods was associated with a 28
percent decreased risk
* When feeding dry food, also include foods with sufficient amounts of
meats and meat meals, for example: beef,
lamb, poultry, and fish.
* Feed a food with larger particles, and include larger pieces of meat to
the diet.
* Avoid moistening dry foods
* If your dog eats rapidly, find ways to try to reduce his speed of eating
* Avoid raising the food bowl - place it at ground level
* Try to minimize stress for your dog. Stressful events have been reported
to be precipitating factors in GDV
* Restrict vigorous exercise one hour before and two hours after meals.
* When you are not in close proximity to your dog, use a baby monitor to
alert you if your dog is in distress.
* Learn to recognize signs of GDV, which include pacing and restlessness,
head turning to look at the abdomen,
distention of the abdomen, rapid shallow breathing, nonproductive attempts
at vomiting, and salivation. These
symptoms can progress rapidly to shock and death. Get to your veterinarian
or emergency hospital the moment you suspect GDV.

I'm spoiled but- not rotten!
Barked: Tue Jul 14, '09 5:22pm PST 
I posted the exact same thing in the bloat threadway to go

Somewhere there- is something I- can eat..
Barked: Tue Jul 14, '09 9:23pm PST 
Another reason to feed good quality food!

some interesting information, thanks for posting!

Peanut Baby

Getting a- furless sister!
Barked: Tue Jul 14, '09 9:59pm PST 
just curious...can little dogs get bloat?
Tanuk CGC

Sherpa Tanuk of- Everest
Barked: Wed Jul 15, '09 10:38am PST 
All dogs have the capacity to bloat (horses too!), but it is rare in smaller breeds from what I understand.

I think Tanuk will be happy to know he's getting more human nummies with his meals now!
Jessica CGC

Will work for- food
Barked: Wed Jul 15, '09 11:08am PST 
hmmm since bloat is more common if it was in the family, is there a genetic test for bloat like there is for hip dysplasia or something?

Classic Beauty
Barked: Wed Jul 15, '09 11:26am PST 
We need the mastiffs in here, they know morebig grin

The ledgend- lives on.
Barked: Wed Jul 15, '09 3:53pm PST 
No - there's no genetic test for bloat since genetics is only a small sliver of one of the potential risk factors. (I believe most of the Bullmastiff Health and Genetic funding is being focused twoards cancer research at the time being.)

IMO - a stressy anxious type dog or situation is the number one risk-factor and trigger for bloat. I believe you can do everything right - by whatever standards you may believe are right - and your dog can still bloat because of un-controllable factors such as stress level and aforementioned stressy anxious type dog or situation and genetics.

At my clinic alone one co-worker had a little Lhasa mix die from GDV - as did one of my boss's Springers. My co-worker with English Mastiffs had one almost meet his doom by GDV and like Zeus - had a miracle and was spared. She also had her next Mastiff have the preventative gastropexy done during his neuter - and have both been made believers out of the preventative gastropexy. Though it is a problem that is primarily identified with large and giant breeds - it can effect literally any dog and it's always a good precaution to just be familiar with the signs and symptoms.
Jessica CGC

Will work for- food
Barked: Wed Jul 15, '09 6:32pm PST 
Thanks. It's so strange. Air causes bloat, but stress makes a dog more prone...i wonder how. Then exercise how does that increase it. And do wolves get bloat. I was surprised by poor Sawyer. even though I know bloat is common, Sawyer is so young and his owner did everything right.

The ledgend- lives on.
Barked: Wed Jul 15, '09 11:33pm PST 
According to Lawrence Glickman's 5-year bloat study (funded by the AKC Canine Health Foundation and several Weimaraner parent clubs) and in his published piece called "Non-Dietary Risk Factors for Gastric Dilatation-Volvulus in Large and Giant breed Dogs" he found that...

"...personality turned out to be a major predictor. According to Glickman, it is not the amount of stress in a dog's life that is significant, but the way in which the dog handles the stress. "When animals are placed under stress, there are certain stress hormonal and neural responses. Some of these responses affect gastric motility. A fearful dog may have a very different response physiologically to stress than a happy, easygoing dog. We think those physiological responses my contribute to the rotation of the stomach because of the motility. This is the second or third time we have demonstrated temperament, particularly easygoingness or fearfulness is related to the risk of bloat." (-As reported by Judy Colan for The Weimaraner Magazine)

The day Zeus bloated was a day he had a signifigant amount of stress because of a random bizzare event. To make the story (semi) short...

He's always been bad with trying to eat rawhides whole - and when he would get one it was common that he would eat it whole and then walk around wheezing because they'd be lodged in his throat. So despite how much he loved them - for his own safety - stopped giving them to him - and he knew he wasn't allowed to have them. (There's a video on his page where when he was younger he found a rawhide in the yard - and you can obviously tell he knows he's not supposed to have it - and the glee he took when he passed me with the camera and I didn't take it from him.) He found a rawhide on a blazing hot summer day in my car on our way home - and not knowing he had it opened my car door - and he took off in a sprint running through our property with it gulping a ton of air trying to chewing it and trying swallow it whole. We were running after him screaming - trying to herd him to a smaller area. After we did and still couldn't catch him we thought if we turned the hose on him since he hates water that he'd drop it. That brilliant idea only made it worse and got him more upset - and he still didn't drop it - so we herded him into my car so we could both get ahold of him. His Dad held him down while I removed the rawhide that was now lodged in the back of his throat. Not five minutes later it was obvious that he was in pain and was definitely bloated - and we were in the car and on our way. I'd like to think that our fast acting helped to save his life - but our downright stupidity put him in that situation in the first place.

Zeus is an uber mellow dog - I mean - he has a 23 hour a day nap quota. Honestly? The most stress this dog ever has is when I make him go outside in the rain to pee. However - on that day? I don't think either of us have ever experienced that amount of stress and anxiety - and it manifested itself in a near death experience.

Needless to say - I turned the house, vehicles, cars - you name it - upside down after that collecting any rawhide I could get my hands on. (It's so odd - because he's not even like that with RMB's.) Rawhides are officially blacklisted at our house - and will never come through the door ever again.

Edited by author Wed Jul 15, '09 11:44pm PST

  (Page 1 of 2: Viewing entries 1 to 10)  
Page Links: 1  2