Hi Cynthia,
Here’s a link that Lynne D posted today in the “Grain Free Diets & Heart Disease” research & studies done on Golden Retriever, Newhounds, Portuguese water dogs & Beagal adult dogs of varying genetic backgrounds.
Common findings in affected dogs are large body size, very low blood taurine concentration and diets containing whole-grain rice, rice bran or barley, and lamb meal…
https://www.dropbox.com/sh/zpqq66i3w2twy7e/AADcuRPcpOOBkewPtXf7SAdSa?dl=0
If you’re feeding a dry kibble you want a dry kibble that has at least 2-3 meat proteins & meat meals as 1st, 2nd & 3rd ingredients then a carb, you want higher the meat proteins & less plant proteins less legumes, less rice, less barley & corn etc..
Best to rotate your kibble between a few different brands so your dog is getting variety of dry foods & isnt eating the same dry dog food 24/7 also start adding fresh whole natural sources of taurine to diet, raw beef heart, dark chicken meat, eggs, seaweed, krill and brewer’s yeast. Raw meat is fairly rich in taurine, comparable to fish, but cooked meat typically have only 10 milligrams of taurine per ounce, you can buy tin Sardines in spring water & add 2 spoons to 1 of your dog daily meal…
Here’s a little insert from study done on “Golden Retrievers”
The contribution of diet merits further investigation, since three of five dogs in this study were eating commercial diets that included lamb or lamb meal and rice as the primary ingredients. Historically, dietary causes of taurine-deficient
DCM in dogs have been ignored, because taurine is not recognized as an essential amino acid in dogs.
6
However, recent studies by Delaney et al, have prompted new insights into the
possible relation between taurine deficiency in dogs and diets containing whole-grain rice, rice bran or barley, and lamb meal.
38
It has been reported that dietary bran rice decreases plasma and whole-blood taurine concentrations in cats by accelerating the excretion of bile acids.
39
The role of lamb meal in taurine deficiency remains obscure, but lamb
meal may limit the bioavailability of sulfur amino acids.
40
Recently, low blood taurine concentrations have been identified in a cohort of Newfoundland dogs fed lamb meal and rice.
29
In an extensive genetic study performed by Alroyetal. on Portuguese water dogs, two litters were obtained following a breeding of presumptive carriers of DCM. Two
(29%) of seven puppies in the first litter developed DCM while they were fed a commercial growth formula that included ground corn and poultry byproduct meal as primary ingredients.
19
The second litter was fed a lamb meal and rice puppy diet, and eight (89%) of nine puppies developed signs of taurine-deficient DCM.
19
The role of diet was not investigated in that study, but it could be hypothesized that the heritable predisposition to taurine-deficient DCM in juvenile Portuguese water dogs was precipitated by feeding a lamb meal and rice diet.
Torres et al showed that feeding lamb meal and rice to young beagles for 8 months significantly decreased their plasma taurine concentrations during the first month, but no change occurred thereafter, and the depletion was insufficient to cause DCM in these dogs.
41
On the other hand, a decreased urinary taurine excretion was observed
despite a lack of change in plasma taurine concentrations, indicating a certain physiological adaptation to conserve taurine in the face of depletion.
41
The main limitation of the study reported here was its retrospective nature and the availability of echocardiographic data. Other echocardiographic measurements would have been useful to examine the systolic dysfunction and to follow the response to therapy. It has been reported that concurrent whole-blood taurine and plasma taurine deficiencies correlate better with myocardial taurine deficiency in dogs
than either whole-blood taurine or plasma taurine concen-
tration alone.
42
Nonetheless, all subjects included in this study had very low plasma taurine concentrations, which implied a clinically significant taurine deficiency.
