119 - Change in Serum Total Lipid Profiles in Dogs Supplemented with Camelina, Flaxseed, or Canola Oil for 16 Weeks

Wednesday, June 29, 2022

11:15 AM – 11:30 AM CT

Location: Oklahoma City Convention Center, 301 C/D

Presenting Author(s)

SB

Scarlett Burron, BSc

Department of Animal Biosciences, University of Guelph
Guelph, ON

Author(s)

TR

Taylor Richards, BSc

Department of Animal Biosciences, University of Guelph
Guelph, ON
AS

Anna-Kate Shoveller, BSc, PhD

Assistant Professor
Department of Animal Biosciences, University of Guelph
Guelph, ON
WP

Wendy Pearson, BSc, MSc, PhD

Associate Professor of Equine Physiology
Department of Animal Biosciences, University of Guelph
Guelph, ON
CG

Caitlin E. Grant, BSc, DVM, DVSc

Clinical Nutrition Resident and DVSc Candidate
Department of Clinical Studies, Ontario Veterinary College, University of Guelph
Guelph, ON
NA

Nadeem Akhtar, PhD

Research Associate
University of Guelph
Guelph, ON
LT

Luciano Trevizan, BSc, MSc, PhD

Departamento de Zootecnia, Universidade Federal do Rio Grande do Sul
Porto Alegre, Rio Grande do Sul

Abstract: There are few data describing the effects of different oils on fatty acid (FA) metabolism in dogs. Our objectives were to assess the effects of camelina (CAM), flaxseed (FLAX), and canola oil (OLA) on the serum total lipid FA profiles over a 16-week feeding study. Thirty healthy, adult dogs of various breeds [17 females, 13 males; 7.2±3.1 years and 27.4±14.0 kg (mean±SD)] underwent a 4-week dietary wash-in period on a commercial, low-fat kibble top dressed with 8.2g sunflower oil/100g food intake. Dogs were blocked by breed, age, and size, and assigned to receive CAM, FLAX, or OLA for 16-weeks at the same dose as wash-in. Serum total FA were measured using gas chromatography from dogs at baseline and week 16. Data were analyzed with ANOVA using PROC GLIMMIX of SAS. In all treatments, the final percent area of pooled and individual omega-3 (n-3) and omega-6 (n-6) FAs were inversely related, with n-3 being greater at week 16 and n-6 less at week 16 compared with baseline (p< 0.05). Conversely, dihomo-γ-linolenic acid showed accumulation at week 16 and docosahexaenoic acid was less at week 16 than baseline for all treatments (p< 0.05). Stearidonic acid was greater in FLAX than OLA but both were similar to CAM, and α-linolenic differed among all treatments (FLAX >CAM >OLA) (p< 0.05). Eicosadienoic acid was less in FLAX than CAM and OLA (p< 0.05). Omega-9 FA were greater at week 16 for all treatments and individual FAs (p< 0.05). Eicosaenoic and mead acid were greater in CAM than FLAX and OLA, and oleic acid was greater in FLAX than OLA, but similar to CAM (p< 0.05). Differences among dogs fed camelina, flax, and canola oils were due to the inherent FA concentrations of the oil and suggest all oils are suitable for increasing serum n-3 concentrations.