References of "Beckers, Yves"
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See detailLes minéraux et vitamines chez la vache laitière
Beckers, Yves ULg

Conference given outside the academic context (2002)

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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)

Detailed reference viewed: 22 (1 ULg)
See detailL'amélioration de la qualité de l'alimentation bovine en vue de la réduction des émissions de méthane
Beckers, Yves ULg

Conference given outside the academic context (2002)

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See detailDemain, quelles orientations pour les co-produits ?
Beckers, Yves ULg

Conference (2002, April 19)

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See detailAlimentation de la vache laitière : allier productivité, qualité et respect de l'environnement
Beckers, Yves ULg

Conference given outside the academic context (2002)

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See detailLa valorisation des proéagineux et des oléagineux dans l'alimentation à la ferme
Beckers, Yves ULg

Conference (2002, January 25)

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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 detailLa valorisation de la betterave fourragère dans l'alimentation de la vache laitière et du bétail à l'engraissement
Beckers, Yves ULg

Conference given outside the academic context (2001)

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See detailEnrichissement en PUFA oméga 3 et CLA des produits des porcs et des volailles: mythe ou réalité.
Rossi, Florence; Beckers, Yves ULg; Wavreille, José et al

Conference given outside the academic context (2001)

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See detailL'alimentation des bovins Blanc Bleu Belge culards
Beckers, Yves ULg

Conference given outside the academic context (2001)

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See detailDésynchronisation des apports énergétiques et azotés et paramètres de la digestion et du métabolisme azoté chez le taurillon Blanc Bleu Belge culard.
Valkeners, Damien; Wouters, A. J.; Thewis, André ULg et al

in 8èmes Rencontres autour de la Recherche sur les Ruminants, Paris, France, 5-6 décembre 2001 (2001)

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See detailLa valorisation de la betterave fourragère dans l'alimentation de la vache laitière et du bétail à l'engraissement
Beckers, Yves ULg

Conference given outside the academic context (2000)

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See detailAlimentation et fertilité en Blanc Bleu Belge
Beckers, Yves ULg

Conference given outside the academic context (2000)

Detailed reference viewed: 17 (1 ULg)
See detailAlimentation du taurillon Blanc Bleu Belge culard
Beckers, Yves ULg

Conference given outside the academic context (2000)

Detailed reference viewed: 14 (6 ULg)