Technological processes of feed manufacturing affect protein endogenous losses and amino acid availability for body protein deposition in pigs
| Autor: | Bernard Sève, Philippe Ganier, J.-F. Thibault, L. Lahaye |
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| Přispěvatelé: | ProdInra, Migration, Unité mixte de recherche veau et porc (UMR VP), Institut National de la Recherche Agronomique (INRA)-Ecole Nationale Supérieure Agronomique de Rennes |
| Rok vydání: | 2004 |
| Předmět: |
2. Zero hunger
chemistry.chemical_classification 0303 health sciences Meal 030309 nutrition & dietetics Chemistry 0402 animal and dairy science Endogeny 04 agricultural and veterinary sciences Isotope dilution 040201 dairy & animal science Amino acid METABOLISME DES PROTEINES 03 medical and health sciences ALIMENT POUR ANIMAUX Nutrient Biochemistry Latin square [SDV.SA.SPA]Life Sciences [q-bio]/Agricultural sciences/Animal production studies Animal Science and Zoology [SDV.SA.SPA] Life Sciences [q-bio]/Agricultural sciences/Animal production studies Particle size Food science Leucine ComputingMilieux_MISCELLANEOUS |
| Zdroj: | Animal Feed Science and Technology Animal Feed Science and Technology, Elsevier Masson, 2004, 113, pp.141-156 |
| ISSN: | 0377-8401 |
| DOI: | 10.1016/j.anifeedsci.2003.07.005 |
| Popis: | In the pig, dietary protein value depends on the availability of amino acids (AA), usually estimated by way of ileal digestibility measurement. However, AA availability for body protein deposition is influenced by endogenous digestive losses specifically induced by feed components. The purpose of the experiment was to assess the impact of some feed manufacturing processes on AA ileal endogenous losses and their resulting availability for growth. Four technological treatments were applied to a wheat–sunflower meal mix and compared in vivo according to a 4×4 Latin square design. These treatments were two grinding conditions, leading to different particle sizes (1000 and 500 μm), and two pelleting processes, “regular” and “high-flow extrusion” (HFE), operated on the finest particle size only. Ileal specific endogenous losses and the coefficient of ileal real digestibility (CIRD) of AA were measured by way of the isotopic dilution method using 15 N -leucine labelled pigs fitted with ileorectal anastomoses. The impact on nitrogen (N) and AA availability was assessed by N balance. Decreasing particle size from 1000 to 500 μm improved (P |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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