I found this information on another list I'm on. It's the highlights of a recently concluded study into bloat and risk factors - building on (and confirming) the information gathered by the Purdue study a couple of years ago.
It confirms hereditary factors, raised feeders, wetting of foods preserved with citric acid, and too-fast eating as increasing the risk of bloat. Interestingly, it also confirms animal fat in the top 4 ingredients of a food as increasing the risk of bloat by 170%.
A rendered meat with bone in the first four ingredients decreases the risk of bloat by 53%.
Feeding large volumes of food in meals, irrespective of the number of meals fed, significantly increases the risk of bloat. So that's another good reason to feed a super-premium kibble where the volume of food fed daily is low, rather than twice as many cups of the cheap stuff
Thought members here might find the results interesting
____________________
Study on multiple causes of bloat was started in about 1998 and ended in
2004. These are highlights.
ABSTRACT - Nutrient Intake and Bloat
CONTENTS OF FOOD AND BLOAT
Malathi Raghavan, DVM, MS; Lawrence T. Glickman, VMD, DrPH; Nita W.
Glickman, MS, MPH; Diana B. Schellenberg*, MS.
Dietary risk factors for gastric dilatation-volvulus (GDV) in dogs were
identified using a nested case-control study. Of 1991 dogs from 11
large- and giant-breeds in a previous prospective study of GDV, 106
dogs that developed GDV were selected as cases while 212 remaining dogs
were randomly selected as controls. A complete profile of nutrient
intake was constructed for each dog based on owner-reported
information, published references and nutrient databases. Potential
risk factors were examined for a significant (p<0.05) relationship with
GDV risk using unconditional logistic regression.
The study confirmed previous reports of increased risks of GDV
associated with increasing age, having a first-degree relative with GDV,
and having a raised food bowl. New significant findings included a 2.7-fold (or 170%) increased risk of GDV in dogs that consumed dry foods containing fat among the first four ingredients.
The risk of GDV was increased 4.2-fold (or 320%) in dogs that consumed
dry foods containing citric acid that were also moistened prior to
feeding by owners. Dry foods containing a rendered meat meal with bone among the first four ingredients significantly decreased GDV risk by 53.0%.
Approximately 30% of all cases of GDV in this study could be attributed
to consumption of dry foods containing fat among their first four
ingredients, while 32% could be attributed to consumption of
owner-moistened dry foods that also contained citric acid. These
findings can be used by owners to reduce their dogs' risk of GDV.*This
manuscript has been accepted for publication in the Journal of the
Animal Hospital Association (JAAHA). 2004
Original Article
ABSTRACT:
Diet-Related Risk Factors for Gastric Dilatation-Volvulus in Dogs of
High-Risk Breeds -
FINDINGS: VOLUME OF FOOD FED
Malathi Raghavan, DVM, PhD, Nita Glickman, MS, MPH, George McCabe, PhD,
Gary Lantz, DVM and Lawrence T. Glickman, VMD, DrPH
From the Departments of Veterinary Pathobiology, (Raghavan, N.
Glickman, L. Glickman), Veterinary Clinical Sciences (Lantz), and
Statistics (McCabe), Purdue University, West Lafayette, Indiana
47907-2027.
A nested case-control study was conducted among 1634 dogs with complete
diet information in a 5-year prospective study to determine diet-related
risk factors for gastric dilatation-volvulus (GDV). Cases included 106
dogs that developed GDV; controls included 212 dogs without GDV that
were frequency matched to cases by year of GDV onset.
Proportionate energy consumed from major food types and from
carbohydrates was determined. Dogs were categorized as consuming either
a low volume or high volume of food based on the median number of cups
of food fed per kg of body weight per meal. 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.
2004
It confirms hereditary factors, raised feeders, wetting of foods preserved with citric acid, and too-fast eating as increasing the risk of bloat. Interestingly, it also confirms animal fat in the top 4 ingredients of a food as increasing the risk of bloat by 170%.
A rendered meat with bone in the first four ingredients decreases the risk of bloat by 53%.
Feeding large volumes of food in meals, irrespective of the number of meals fed, significantly increases the risk of bloat. So that's another good reason to feed a super-premium kibble where the volume of food fed daily is low, rather than twice as many cups of the cheap stuff
Thought members here might find the results interesting
____________________
Study on multiple causes of bloat was started in about 1998 and ended in
2004. These are highlights.
ABSTRACT - Nutrient Intake and Bloat
CONTENTS OF FOOD AND BLOAT
Malathi Raghavan, DVM, MS; Lawrence T. Glickman, VMD, DrPH; Nita W.
Glickman, MS, MPH; Diana B. Schellenberg*, MS.
Dietary risk factors for gastric dilatation-volvulus (GDV) in dogs were
identified using a nested case-control study. Of 1991 dogs from 11
large- and giant-breeds in a previous prospective study of GDV, 106
dogs that developed GDV were selected as cases while 212 remaining dogs
were randomly selected as controls. A complete profile of nutrient
intake was constructed for each dog based on owner-reported
information, published references and nutrient databases. Potential
risk factors were examined for a significant (p<0.05) relationship with
GDV risk using unconditional logistic regression.
The study confirmed previous reports of increased risks of GDV
associated with increasing age, having a first-degree relative with GDV,
and having a raised food bowl. New significant findings included a 2.7-fold (or 170%) increased risk of GDV in dogs that consumed dry foods containing fat among the first four ingredients.
The risk of GDV was increased 4.2-fold (or 320%) in dogs that consumed
dry foods containing citric acid that were also moistened prior to
feeding by owners. Dry foods containing a rendered meat meal with bone among the first four ingredients significantly decreased GDV risk by 53.0%.
Approximately 30% of all cases of GDV in this study could be attributed
to consumption of dry foods containing fat among their first four
ingredients, while 32% could be attributed to consumption of
owner-moistened dry foods that also contained citric acid. These
findings can be used by owners to reduce their dogs' risk of GDV.*This
manuscript has been accepted for publication in the Journal of the
Animal Hospital Association (JAAHA). 2004
Original Article
ABSTRACT:
Diet-Related Risk Factors for Gastric Dilatation-Volvulus in Dogs of
High-Risk Breeds -
FINDINGS: VOLUME OF FOOD FED
Malathi Raghavan, DVM, PhD, Nita Glickman, MS, MPH, George McCabe, PhD,
Gary Lantz, DVM and Lawrence T. Glickman, VMD, DrPH
From the Departments of Veterinary Pathobiology, (Raghavan, N.
Glickman, L. Glickman), Veterinary Clinical Sciences (Lantz), and
Statistics (McCabe), Purdue University, West Lafayette, Indiana
47907-2027.
A nested case-control study was conducted among 1634 dogs with complete
diet information in a 5-year prospective study to determine diet-related
risk factors for gastric dilatation-volvulus (GDV). Cases included 106
dogs that developed GDV; controls included 212 dogs without GDV that
were frequency matched to cases by year of GDV onset.
Proportionate energy consumed from major food types and from
carbohydrates was determined. Dogs were categorized as consuming either
a low volume or high volume of food based on the median number of cups
of food fed per kg of body weight per meal. 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.
2004
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