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Open Vet J. 2023; 13(3): 348-351

Association between dietary polyunsaturated fatty acids and their concentration in blood plasma, red blood cell and semen of dogs

Francisco Javier Pellegrino, Yanina Alejandra Corrada, Sebastián Julio Picco, Alejandro Relling, Analia Lorena Risso.

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In dogs, dietary omega 3 polyunsaturated fatty acids (n-3 PUFA) affect the fatty acid (FA) profile of blood plasma, erythrocyte membrane (EM) and semen, but their correlation has not yet been investigated.
In this study, we evaluated the association between dietary PUFA and their profile in blood plasma, EM and semen of dogs, with the possibility to predict the semen profile using the values of the three first.
Twelve male dogs received the same standard commercial diet for four weeks. The FA profile was analyzed by gas chromatography in paired diet, blood (plasma and EM determinations) and semen samples. Data were analyzed with SAS Proc Corr version 9.4. Pearson´s correlation coefficient (significant if p < 0.05) was used to assess the association of dietary FA profiles with those in blood plasma, EM and semen.
There was a positive correlation between dietary eicosapentaenoic acid (EPA) and blood plasma (r = 0.97), EM (r = 0.94) and semen (r = 0.92) EPA, and between dietary docosahexaenoic acid (DHA) and arachidonic acid (ARA) and semen DHA (r = 0.93) and ARA (r = 0.92), respectively. There was negative correlation between dihomo-gamma-linolenic acid (DGLA) in the diet and EM DGLA (r = -0.94).
The dietary EPA is correlated with blood plasma, EM and semen EPA concentrations, and dietary DHA and ARA are correlated with semen DHA and ARA concentrations in dogs. These findings suggest that dietary EPA, DHA and ARA concentrations could be useful predictive markers for such concentrations in the semen of dogs.

Key words: Association, Diet, Dog, Polyunsaturated fatty acid, Semen

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