TY - JOUR
T1 - Effect of crude fiber and total dietary fiber on the calculated nitrogen-free extract and metabolizable energy content of various dog foods fed to client-owned dogs with osteoarthritis
AU - Traughber, Zachary T.
AU - Detweiler, Katelyn B.
AU - Price, Angela K.
AU - Knap, Kimberly E.
AU - Harper, Tisha A.
AU - Swanson, Kelly S.
AU - de Godoy, Maria R.C.
N1 - Publisher Copyright:
© 2021, American Veterinary Medical Association. All rights reserved.
PY - 2021/10
Y1 - 2021/10
N2 - OBJECTIVE To compare measurements of crude fiber (CF) and total dietary fiber (TDF) for various dog foods and their effect on the calculated nitrogen-free extract and metabolizable energy (ME) content, and to compare label-guaranteed and laboratory-analyzed macronutrient values. SAMPLES 51 dog foods fed to client-owned dogs with osteoarthritis. PROCEDURES Foods were analyzed for dry matter, ash, crude protein, acid-hydrolyzed fat, CF, and TDF. Metabolizable energy was calculated by use of a formula with modified Atwater factors and formulas recommended by the National Research Council that included both CF and TDF values. Linear regression analysis was performed to determine the correlation between CF and TDF values. RESULTS Only a few foods failed to conform to the guaranteed analysis for all macronutrients except for CF, in which approximately 40% of the foods exceeded the guaranteed maximum values. The CF and TDF values were moderately correlated (r = 0.843). Correlations among CF-and TDF-based ME estimations were moderate with use of the modified Atwater formula and strong with use of the National Research Council formulas (r = 0.86 and r = 0.91, respectively). CONCLUSIONS AND CLINICAL RELEVANCE Values for CF were the most variable of the macronutrients of the evaluated dog foods and results suggested that CF is an incomplete and inaccurate measurement of dietary fiber content and, thus, its inaccuracy may lead to inaccurate and variable ME values.
AB - OBJECTIVE To compare measurements of crude fiber (CF) and total dietary fiber (TDF) for various dog foods and their effect on the calculated nitrogen-free extract and metabolizable energy (ME) content, and to compare label-guaranteed and laboratory-analyzed macronutrient values. SAMPLES 51 dog foods fed to client-owned dogs with osteoarthritis. PROCEDURES Foods were analyzed for dry matter, ash, crude protein, acid-hydrolyzed fat, CF, and TDF. Metabolizable energy was calculated by use of a formula with modified Atwater factors and formulas recommended by the National Research Council that included both CF and TDF values. Linear regression analysis was performed to determine the correlation between CF and TDF values. RESULTS Only a few foods failed to conform to the guaranteed analysis for all macronutrients except for CF, in which approximately 40% of the foods exceeded the guaranteed maximum values. The CF and TDF values were moderately correlated (r = 0.843). Correlations among CF-and TDF-based ME estimations were moderate with use of the modified Atwater formula and strong with use of the National Research Council formulas (r = 0.86 and r = 0.91, respectively). CONCLUSIONS AND CLINICAL RELEVANCE Values for CF were the most variable of the macronutrients of the evaluated dog foods and results suggested that CF is an incomplete and inaccurate measurement of dietary fiber content and, thus, its inaccuracy may lead to inaccurate and variable ME values.
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U2 - 10.2460/ajvr.82.10.787
DO - 10.2460/ajvr.82.10.787
M3 - Article
C2 - 34554875
AN - SCOPUS:85116267404
SN - 0002-9645
VL - 82
SP - 787
EP - 794
JO - American journal of veterinary research
JF - American journal of veterinary research
IS - 10
ER -