Détermination du besoin en méthionine du taurillon Blanc Bleu Belge culard en finition.

in 6èmes Rencontres autour de la Recherche sur les Ruminants, Paris, France, 1-2 décembre 1999 (1999)

Détermination du besoin en méthionine du taurilon Blanc Bleu Belge culard en croissance.

in Rencontres Recherches Ruminants. (1998)

The High Water-Holding Capacity Of Pea Inner Fibers Affects The Ileal Flow Of Endogenous Amino Acids In Pigs

in Journal of Agricultural and Food Chemistry (1998), 46(5), 1927-1934

Pigs were fed protein-free diets containing different pea inner fiber (PIF) isolates (from wrinkled or smooth peas, unprocessed or micronized) or different PIF levels (from 50 to 200 g/kg diet), and the ... [more ▼]

Pigs were fed protein-free diets containing different pea inner fiber (PIF) isolates (from wrinkled or smooth peas, unprocessed or micronized) or different PIF levels (from 50 to 200 g/kg diet), and the flows of endogenous N and amino acids were measured at the ileum level. The flows were better correlated to the water-holding capacity (WHC) of the diet than to fiber intake (R2 = 0.996 vs 0.76, respectively). The relationship with WHC was of the exponential type, with a high increase when the WHC exceeded 3 g of water/g diet. A similar pattern and correlation (R2 = 0.98) was obtained for the ileal flow of nucleobases (markers of epithelial cells and bacteria), whereas the relationships with crude mucus (R2 = 0.96) and diaminopimelic acid (marker of bacteria, R2 = 0.55) were linear. N retention by pigs fed with 0, 30, 60, or 90 g/kg of dry matter (DM) of the same protein isolates did not differ significantly in pigs receiving a 40 or 160 g of PIF/kg diet, despite significant differences in ileal N and amino acid flows between the two fiber levels (2.0 and 3.1 g of N/kg of DM intake, on average). These results and those of the flow of endogenous N compounds suggest an effect of the swollen fibers on the intestinal wall rather than a disturbance of the digestive processes. [less ▲]

Les pertes iléales azotées endogénes chez le porc: effet de la composition, de la mouture et du taux d'incorporation des fibres internes de la graine de pois dans les aliments.

in Journées de la Recherche Porcine en France (1996, February), 28

The effect of the chemical composition, the grinding or the dietary level of the pea grain inner fibres on the ileal endogenous nitrogen losses in pigs was studied in three experiments. The intake of ... [more ▼]

The effect of the chemical composition, the grinding or the dietary level of the pea grain inner fibres on the ileal endogenous nitrogen losses in pigs was studied in three experiments. The intake of wrinkled pea inner fibres and starch slightly increased the ileal endogenous amino acid losses compared to smooth peas. The addition of micronized fibres (< 50 μm) in N-free diets significantly decreased the endogenous losses compared to untreated fibres. The water-holding capacity of the latter was higher than that of the micronized fibres (13 vs 4 g water/kg DM). The addition of increasing levels of fibres in diets (5, 10, 15, 20 % raw fibres, i.e. 2.5, 5.0, 7.5, 10 % AOAC fibres) proportionally increased the endogenous losses. The flow of total amino acids estimated for a diet free of fibres reached 6.47 g/kg DM intake and each gramme of AOAC fibre added per kg diet increased the total endogenous amino acid losses of 0.04 g. [less ▲]