The Effects of Graded Arginine Levels on Nitrogen Metabolism in the Lean Adult Dog
Journal Title: Journal of Animal Science Advances - Year 2013, Vol 3, Issue 1
Abstract
The objective of this study was to determine if feeding increased dietary arginine affects indices of inflammation and whole body N metabolism. Three diets were used in this study: a control (0.92%arginine), control plus 0.5% supplemental arginine, and control plus 1.0% supplemental arginine. The diets were fed to 9 adult, spayed Beagles in a replicated 3x3 Latin Square experiment. Experimental periods were 28 days long with blood collection on days 14 and 28, and total urine and fecal collections for the final 6 days ofeach period.Nitrogen intake was increased (P < 0.0001) by increasing dietary arginine. Dry matter digestibility was 1.4% lower (P = 0.0124) for the +1.0% Arginine diet. Nitrogen digestibility was greatest (P = 0.0014) for the +0.5% diet. Nitrogen absorbed was greater (P < 0.0001) for both supplemented diets than control, however, N retained and urea excretion did not differ across treatments. A number of inflammatory biomarkers and hormones were evaluated in urine and serum samples. No differences were detected in any of these biomarkers. Despite some subtle changes in N metabolism, it does not appear that addition of dietary arginine to these diets is beneficial for the adult dog at maintenance.
Authors and Affiliations
C. Conway , M. R. Godoy , K. R. McLeod , D. L. Harmon
Keywords
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