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Fibre analysis and fibre digestibility in pet foods--a comparison of total dietary fibre, neutral and acid detergent fibre and crude fibre.
J Anim Physiol Anim Nutr (Berl). 2012 Oct; 96(5):895-906.JA

Abstract

Six dry dog foods and six dry cat foods with different carbohydrate sources were investigated in digestion trials. Food and faecal samples were analysed for CF, TDF and starch. In dogs, also neutral detergent fibre (aNDFom) and acid detergent fibre (ADFom) were analysed. N-free extract (NfE) was calculated for CF, and similarly for all other fibre analyses. Linear regressions were calculated between fibre intake and faecal fibre excretion. True digestibility was calculated from the regression coefficients [true digestibility in % = (1 - regression coefficient)*100], with the intercept of the equation representing excretion of material of non-food origin. Crude fibre analyses gave the lowest values, and TDF the highest, while ADFom and aNDFom were in between. Variation between diets was lowest in CF and highest in TDF. Total dietary fibre, aNDFom and ADFom in food were positively correlated. Crude fibre in food did not correlate with any other method. The NfE analogue for TDF was closest to the starch content. Methods of fibre analyses in faeces did not agree very well with each other. Crude fibre had the lowest apparent digestibility, followed by ADFom, TDF and aNDFom. For all fibre analyses, there was a significant correlation between fibre intake and faecal fibre excretion. True digestibility was close to zero for CF, with a high uniformity in both species. In dogs, true digestibility of aNDFom was 53%, of ADFom 26% and of TDF 37%; in cats, true digestibility of TDF was 31%. Except for CF, the intercept of the regression equations suggest that faecal excretion of some material of non-food origin is analysed as fibre. A combination of TDF and CF analyses might give good information on the content of total (TDF), unfermentable (CF) and partially fermentable fibre (TDF-CF) in pet foods.

Authors+Show Affiliations

College of Agrarian and Veterinarian Sciences, Sao Paulo State University, Jaboticabal, SP, Brazil.No affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Clinical Trial
Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

21812839

Citation

de-Oliveira, L D., et al. "Fibre Analysis and Fibre Digestibility in Pet Foods--a Comparison of Total Dietary Fibre, Neutral and Acid Detergent Fibre and Crude Fibre." Journal of Animal Physiology and Animal Nutrition, vol. 96, no. 5, 2012, pp. 895-906.
de-Oliveira LD, Takakura FS, Kienzle E, et al. Fibre analysis and fibre digestibility in pet foods--a comparison of total dietary fibre, neutral and acid detergent fibre and crude fibre. J Anim Physiol Anim Nutr (Berl). 2012;96(5):895-906.
de-Oliveira, L. D., Takakura, F. S., Kienzle, E., Brunetto, M. A., Teshima, E., Pereira, G. T., Vasconcellos, R. S., & Carciofi, A. C. (2012). Fibre analysis and fibre digestibility in pet foods--a comparison of total dietary fibre, neutral and acid detergent fibre and crude fibre. Journal of Animal Physiology and Animal Nutrition, 96(5), 895-906. https://doi.org/10.1111/j.1439-0396.2011.01203.x
de-Oliveira LD, et al. Fibre Analysis and Fibre Digestibility in Pet Foods--a Comparison of Total Dietary Fibre, Neutral and Acid Detergent Fibre and Crude Fibre. J Anim Physiol Anim Nutr (Berl). 2012;96(5):895-906. PubMed PMID: 21812839.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Fibre analysis and fibre digestibility in pet foods--a comparison of total dietary fibre, neutral and acid detergent fibre and crude fibre. AU - de-Oliveira,L D, AU - Takakura,F S, AU - Kienzle,E, AU - Brunetto,M A, AU - Teshima,E, AU - Pereira,G T, AU - Vasconcellos,R S, AU - Carciofi,A C, Y1 - 2011/08/03/ PY - 2011/8/5/entrez PY - 2011/8/5/pubmed PY - 2013/2/6/medline SP - 895 EP - 906 JF - Journal of animal physiology and animal nutrition JO - J Anim Physiol Anim Nutr (Berl) VL - 96 IS - 5 N2 - Six dry dog foods and six dry cat foods with different carbohydrate sources were investigated in digestion trials. Food and faecal samples were analysed for CF, TDF and starch. In dogs, also neutral detergent fibre (aNDFom) and acid detergent fibre (ADFom) were analysed. N-free extract (NfE) was calculated for CF, and similarly for all other fibre analyses. Linear regressions were calculated between fibre intake and faecal fibre excretion. True digestibility was calculated from the regression coefficients [true digestibility in % = (1 - regression coefficient)*100], with the intercept of the equation representing excretion of material of non-food origin. Crude fibre analyses gave the lowest values, and TDF the highest, while ADFom and aNDFom were in between. Variation between diets was lowest in CF and highest in TDF. Total dietary fibre, aNDFom and ADFom in food were positively correlated. Crude fibre in food did not correlate with any other method. The NfE analogue for TDF was closest to the starch content. Methods of fibre analyses in faeces did not agree very well with each other. Crude fibre had the lowest apparent digestibility, followed by ADFom, TDF and aNDFom. For all fibre analyses, there was a significant correlation between fibre intake and faecal fibre excretion. True digestibility was close to zero for CF, with a high uniformity in both species. In dogs, true digestibility of aNDFom was 53%, of ADFom 26% and of TDF 37%; in cats, true digestibility of TDF was 31%. Except for CF, the intercept of the regression equations suggest that faecal excretion of some material of non-food origin is analysed as fibre. A combination of TDF and CF analyses might give good information on the content of total (TDF), unfermentable (CF) and partially fermentable fibre (TDF-CF) in pet foods. SN - 1439-0396 UR - https://www.unboundmedicine.com/medline/citation/21812839/Fibre_analysis_and_fibre_digestibility_in_pet_foods__a_comparison_of_total_dietary_fibre_neutral_and_acid_detergent_fibre_and_crude_fibre_ L2 - https://doi.org/10.1111/j.1439-0396.2011.01203.x DB - PRIME DP - Unbound Medicine ER -