References of "Froidmont, Eric"
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See detailAlimentation azotée du taurillon Blanc Bleu Belge culard: état des connaissances, nouvelles avancées et perspectives.
Valkeners, Damien; Beckers, Yves ULg; Froidmont, Eric et al

in CRA-W; FUSGAx (Eds.) 10ème Carrefour des Productions animales. L’élevage : hier, aujourd’hui, demain quelles attentes pour quels enjeux ? (2005, January 26)

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See detailIncidence d'una dditif alimentaire contenant les premiers acides aminés limitants sur les performances zootechniques du taurillon BBBc nourri avec de l'ensilage de maïs
Rondia, Pierre; Froidmont, Eric; Decrueyenaere, Virginie et al

in Rencontres autour des Recherches sur les Ruminants (2005), 12

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See detailLupin seeds as a substitute to soybean in broiler chiken feeding : incorporation level and enzyme preparation effects on performances, digestibility and meat composition.
Froidmont, Eric; Beckers, Yves ULg; Dehareng, frédéric et al

in 55th Meeting of European Association of Animal Production (2004, September)

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See detailIn vitro pre-digestion to estimate fermentability of feedstuffs in pig large intestine
Boudry, Christelle ULg; Estrada, Fernando; Schoeling, Olivia et al

in Ball, Ronald O. (Ed.) Proceedings of the 9th International Symposium on Digestive Physiology in Pigs (2003, May)

The aim of this study was to compare ileal and faecal digestibilities to gas production in syringes, preceded or not by an in vitro enzymatic digestion of two pig diets containing different amounts of non ... [more ▼]

The aim of this study was to compare ileal and faecal digestibilities to gas production in syringes, preceded or not by an in vitro enzymatic digestion of two pig diets containing different amounts of non starch polysaccharides (NSP). In vivo, only nitrogen faecal digestibility differed between the two diets. Their enzymatic pre-digestion led to a higher gas production after 16 h of incubation in syringes for the diet with the lowest N faecel digestibility but not without pre-digestion. We may conclude that an in vitro pre-digestion before incubation in syringes is necessary to evaluate feed fermentescibility in pig large intestine. [less ▲]

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See detailDétermination des acides aminés limitants chez le taurillon BBBc recevant une ration à base d'ensilage de maïs
Frand, Xavier; Froidmont, Eric; Beckers, Yves ULg et al

in Rencontres autour des Recherches sur les Ruminants (2003), 10

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See detailInfluence de la substitution du tourteau de soja par des graines de lupin, avec ou sans complément d'alpha-galactosidase, sur la digestibilité des régimes et la rétention azotée du porc en croissance
Froidmont, Eric; Schoeling, Olivia; Deliège, Françoise et al

in Journées Recherche Porcine (2003)

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See detailRumen bypass of free methionine and lysine for double-muscled Belgian Blue bull.
Froidmont, Eric; Rondia, Pierre; Beckers, Yves ULg et al

(2002, August)

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See detailRumen Escape Of Methionine And Lysine Administered Intraruminally To Growing Double-Muscled Belgian Blue Bulls
Froidmont, Eric; Rondia, Pierre; Thewis, André ULg et al

in Reproduction Nutrition Development (2002), 42(6), 537-544

In many dietary conditions, methionine (Met) and lysine (Lys) are the most limiting amino acids (AA) for ruminants. The AA protected from ruminal fermentation are not commercially available, with the ... [more ▼]

In many dietary conditions, methionine (Met) and lysine (Lys) are the most limiting amino acids (AA) for ruminants. The AA protected from ruminal fermentation are not commercially available, with the exception of Met which is not always economical, especially for meat production. This study measured ruminal escape of free Met and Lys supplemented intraruminally to fast growing bulls. Six double-muscled Belgian Blue bulls, fed a high concentrate diet and fitted with a rumen cannula, received free Met (40 g.d–1) and free Lys (60 g.d–1), individually or simultaneously, in a duplicated Latin square design. The mean ruminal escape of Met and Lys reached 37 and 45% respectively, and did not differ if administered separately or together. Plasma Lys and Met concentrations were increased by 504 and 126%, respectively. Substantial proportions of free AA escaped ruminal fermentation and were available for absorption from the small intestine when they were administered at physiologically high levels. [less ▲]

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See detailDetermination Of The Methionine Requirement Of Finishing Double-Muscled Belgian Blue Bulls With A Three-Step Method
Froidmont, Eric; Beckers, Yves ULg; Thewis, André ULg

in Canadian Journal of Animal Science (2002), 82(1), 95-102

A three-step technique was used to determine total amino acids (AA) and the first limiting AA requirements in finishing double-muscled Belgian Blue (dmBB) bulls. In a first experiment, three dmBB bulls ... [more ▼]

A three-step technique was used to determine total amino acids (AA) and the first limiting AA requirements in finishing double-muscled Belgian Blue (dmBB) bulls. In a first experiment, three dmBB bulls (505 ± 21 kg) received a low metabolizable protein diet containing 25% meadow hay and 75% concentrate. Net energy supply was adequate for maximizing daily gains because of continuous infusion of dextrose into the duodenum. The intestinal apparent disappearance of essential AA (EAA) averaged 70.8% and was the lowest for histidine (61.3%) and the highest for arginine (79.9%). In a second experiment, four dmBB bulls (517 ± 16 kg) received the same diet supplemented with duodenal infusion of dextrose and four doses of Na-caseinate (17, 33, 50 and 66% of metabolizable dietary AA) in a 4 × 4 Latin square design. Nitrogen retention for the basal diet alone and the four increasing supplements of Na-caseinate averaged 61, 64, 74, 75 and 78 g d–1, respectively. A supply of 720 g d–1 of metabolizable AA was defined as optimising the N utilization for animal growth. Based on patterns of plasma concentrations, methionine and phenylalanine were probably the limiting AA. In a third experiment, five dmBB bulls (513 ± 60 kg) fed the basal diet received duodenal infusion of dextrose and AA, equivalent to the second dose in exp. 2 except for the supply of metabolizable methionine (12.8, 15.1, 17.6, 20.1, 22.6 and 25.1 g d–1) that varied in a 6 × 6 Latin square design with one missing animal. On the basis of N retention, the metabolizable methionine requirement was estimated to 22.8 g d–1 and corresponded to 360 mg of metabolizable methionine per gram of N retained. [less ▲]

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See detailOptimalisation des apports en acides aminés pour des taurillons BBB en complément à une ration fermière
Beckers, Yves ULg; Froidmont, Eric

Conference (2001, December 12)

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See detailMesure du by-pass ruminal d'un supplément de lysine et de méthionine libres chez le taurillon Blanc Bleu Belge culard.
Froidmont, Eric; Rondia, Pierre; Beckers, Yves ULg et al

in 7èmes Rencontres autour de la Recherche sur les Ruminants, Paris, France, 6-7 décembre 2000 (2000)

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See detailDetermination Of The Methionine Requirement Of Growing Double-Muscled Belgian Blue Bulls With A Three-Step Method
Froidmont, Eric; Beckers, Yves ULg; Thewis, André ULg

in Journal of Animal Science (2000), 78(1), 233-241

The three-step technique was used to determine the requirements of total amino acids (TAA) and the first-limiting amino acid (AA) in growing double- muscled Belgian Blue bulls (BBb). In Exp. 1, three ... [more ▼]

The three-step technique was used to determine the requirements of total amino acids (TAA) and the first-limiting amino acid (AA) in growing double- muscled Belgian Blue bulls (BBb). In Exp. 1, three double-muscled BBb weighing initially 306 ± 28 kg received a basal diet consisting of 30% meadow hay and 70% concentrate that was poor in digestible protein but had adequate NE because of continuous infusion of dextrose into the duodenum. The intestinal apparent digestibility of essential AA (EAA) was defined according to their duodenal and ileal flows. It averaged 72% but varied between 60% for Met and 79% for Arg. In Exp. 2, five double-muscled BBb (334 ± 22 kg) received the same diet supplemented with duodenal infusions of dextrose and four doses of Na-caseinate (28, 56, 84, and 112% of intestinal digestible dietary AA) in a 4 × 4 Latin square design with one additional animal. Nitrogen retention for the basal diet alone and the four increasing supplements of Na-caseinate reached 49, 61, 70, 80, and 86 g/d, respectively. Nitrogen utilization improved from 34.3% without Na-caseinate supplementation to a maximum of 40.6%, with the third dose supplying 788 g/d of apparently digestible AA. Based on patterns of plasma concentrations, Met, Phe, and Arg were probably the limiting AA when animals optimized N utilization. In Exp. 3, six double-muscled BBb (315 ± 25 kg) fed the basal diet received duodenal infusions of dextrose and AA, equivalent to the third dose in Exp. 2, except for digestible Met (9.3, 14.4, 18.4, 22.4, 26.4, and 30.4 g/d) in a 6 × 6 Latin square design. The Met requirement was close to 26.4 g/d on the basis of N retention. [less ▲]

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See detailDétermination du besoin en méthionine du taurillon Blanc Bleu Belge culard en finition.
Froidmont, Eric; Beckers, Yves ULg; Thewis, André ULg

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

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See detailDetermination of methionine requirement of growing double-muscled Belgian Blue bull.
Froidmont, Eric; Beckers, Yves ULg; Thewis, André ULg

in Book of abstract of the VIIIth International Symposium on Protein Metabolism and Nutrition. (1999)

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See detailDétermination du besoin en méthionine du taurilon Blanc Bleu Belge culard en croissance.
Froidmont, Eric; Beckers, Yves ULg; Thewis, André ULg

in Rencontres Recherches Ruminants. (1998)

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See detailThe High Water-Holding Capacity Of Pea Inner Fibers Affects The Ileal Flow Of Endogenous Amino Acids In Pigs
Leterme, Pascal; Froidmont, Eric; Rossi, Florence et al

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 ▲]

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See detailInfluence de la perfusion duodénale de caséinate de sodium sur la rétention azotée chez le taurillon Blanc Bleu Belge culard en croissance et rationné en protéines.
Froidmont, Eric; Beckers, Yves ULg; Thewis, André ULg

in 4èmes Rencontres autour de la Recherche sur les Ruminants, Paris, France, 4-5 décembre 1997 (1997)

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