... info on raw feeding and bloat?
I know what I *think.*
But so far I can't point to that one sentence in text from an authoritative source that says "bloat risk is reduced by feeding a fresh raw diet," and that raw food eliminates the necessity for portioning out smaller more frequent meals.....
"Bloat and torsion is extremely rare in dogs that consume a high protein, raw meat based diet, containing less than 25% carbohydrate" is verbiage that is used again and again on sites promoting (or selling frozen products for) raw diets. But I never see the kind of backup I want to see.
And even if they did, could they prove definitively that it was the fresh raw food? Or could it be the usual (and profound) decrease in grain-carbs that accompanies a switch to raw?
I think it's both. But I can't point to that exact statement yet resulting from solid research.
From Purdue's big study, 1994:
"Dogs fed a larger volume of food per meal were at a significantly (P<0.05) increased risk of GDV, regardless of the number of meals fed daily. For both large- and giant-breed dogs, the risk of GDV was highest for dogs fed a larger volume of food once daily." While this corroborates the suggestions to feed smaller, more frequent meals, I suspect (don't know, though) that this was a test conducted with kibble. So the results would really apply to kibble-fed dogs, rather than all dogs.
Among the statements that are made by raw-feeding sites about it:
QUOTE: The chances of bloat are much less than on kibble. It is quite rare for a dog to bloat when they are eating a raw diet, for a couple of reasons.
The first is that raw food doesn't swell like kibble which can sometimes cause problems. The second thing is that most dogs eat more slowly when they are eating raw food compared to the familiar "inhale" style eating that dogs use when they are eating kibble. Because they aren't inhaling their food, less air is sucked into the stomach. Another reason is that chewing allows the dog's body to prepare for digestion. The necessary juices and acids are released slightly prior to the "deposit" of food into the stomach. END from
http://www.njboxers.com/faqs.htm#reduce
According to a report on studies of bloat done at Purdue, bloat cases have risen 1500% in the thirty year period between 1964 and 1994.
Their report dated January, 1997 states: "This increase is unlikely to reflect changing diagnostic criteria or disease recognition. The increasing frequency of GDV starting about 1969 affected most of the large and giant dog breeds. Therefore, it is also unlikely to be caused by genetic factors. However, this apparent epidemic of GDV could be explained by introduction of one or more novel environmental factors such as a new ingredient in dry dog foods or a change in the manufacturing processes. It might also be related to changes in canine vaccines or their pattern of use, e.g., multivalent vaccines."
There's a lot of material out there. I wish I could point to a source that had categorical proof that fresh raw food with little or no grain (whether fed one or twice a day) was the best prevention.
That's what I believe, though.