![]() This leaves room in the market for another plant-based oil that can be easily cultivated and that can provide high n-3 inclusion while still being economically and environmentally sustainable.ĭue to difficulty with blood collection, no hematology or biochemistry samples were obtained from Dog #21 on week 16. Flax oil does have an n-6:n-3 ratio (1:4.19) that is favourable in bringing canine diets to a desirable n-6:n-3 ratio, though the continuous cropping of flaxseed oil plants is rare in North America due to their sensitivity to winter climates and diseases or pests. Canola, corn, soybean, and sunflower oil are commonly used plant-based lipid sources in the pet food industry however, these oils have much higher levels of omega-6 (n-6) than n-3 fatty acids, with n-6:n-3 ratios of 1:0.59, 1:0.01, 1:0.12, and 1:0.00, respectively. Fish oils are a commonly used source of n-3 supplementation due to their high levels of eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA) however, the large-scale use of fish oil in canine diets is not an environmentally sustainable option long-term, leaving a need for plant-based oil alternatives. The ideal n-6:n-3 fatty acid ratio for canine diets is between 5:1 and 10:1, and including n-3 rich ingredients is typically needed to achieve this desired ratio when formulating canine diets. Omega-3 (n-3) fatty acids in particular have been shown to have many health-promoting outcomes, including cardioprotective effects, anti-inflammatory and immune modulating benefits, and improved skin and coat health properties. Omega-6 linoleic acid (C18:2n-6 LA) and omega-3 alpha-linolenic (C18:3n-3 ALA) fatty acids are essential in canine diets, as dogs are not able to produce these fatty acids endogenously. These results support the conclusion that camelina oil is safe for use in canine nutrition. ![]() Statistically significant differences noted among some serum biochemical results were considered small and were due to normal biological variation. No biologically significant differences were seen between the treatment groups in terms of BW, BCS, FI, and hematological and biochemical results. All of the data were analyzed with ANOVA using the PROC GLIMMIX of SAS. Body condition score (BCS), BW, food intake (FI), and hematological and select biochemical parameters were measured at various timepoints over a 16-week feeding period. After a 4-week wash-in period using sunflower oil and kibble, the dogs were blocked by breed, age, and size and were randomly allocated to one of three treatment oils (camelina (CAM), flax (FLX), or canola (OLA)) at a level of 8.2 g oil/100 g total dietary intake. A total of thirty privately-owned adult dogs of various breeds (17 females 13 males), with an average age of 7.2 ± 3.1 years (mean ± SD) and a body weight (BW) of 27.4 ± 14.0 kg were used. This study aimed to determine whether camelina oil is safe for use in canine diets, using canola oil and flax oil as controls, as they are similar and generally regarded as safe (GRAS) for canine diets.
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