Ileal digestibility of dietary protein in the growing pig and adult human
| Autor: | Daniel Tomé, Cécile Bos, Paul J. Moughan, Amélie Deglaire |
|---|---|
| Rok vydání: | 2009 |
| Předmět: |
Adult
Male medicine.medical_specialty Nitrogen Swine Lysine Medicine (miscellaneous) Ileum Phenylalanine Biology Animal science Bolus (medicine) Internal medicine Casein medicine Animals Humans Ingestion Amino Acids Tyrosine Meal Nutrition and Dietetics Nitrogen Isotopes Caseins Endocrinology medicine.anatomical_structure Models Animal Linear Models Digestion Female Dietary Proteins |
| Zdroj: | British Journal of Nutrition. 102:1752-1759 |
| ISSN: | 1475-2662 0007-1145 |
| Popis: | The suitability of the pig as an animal model for predicting protein digestibility in man was evaluated. Healthy adult human subjects (mean body weight 67 kg;n11) and growing pigs (mean body weight 40 kg;n15) were fed semi-synthetic mixed meals containing, as a sole source of N, casein (C), hydrolysed casein (HC) or rapeseed isolate (R). There was no prior adaptation to the test meal. Ileal digesta were sampled through a naso-ileal tube (human subjects) or a post-valve T-caecum cannula (pigs) after ingestion of a bolus meal. The protein sources were15N-labelled. Amino acid (AA) digestibilities were not determined for R. Ileal apparent N digestibility was markedly lower (14–16 %;P P P P>0·05) between the species (C, HC). Exceptions were for phenylalanine, tyrosine, lysine, histidine and aspartic acid for which digestibilities were lower (3 % on average;P r0·98 over 3 × 2 data;P = 0·11) and AA (r0·87 over 26 × 2 data;P |
| Databáze: | OpenAIRE |
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