References of "Beckers, Yves"
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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 detailComparaison de quatre variétés de blé d’hiver : effets de différents critères physico-chimiques sur les performances zootechniques du poulet
Piron, Fabien ULg; Beckers, Yves ULg; Ounissi, Kamel et al

in Journées de la Recherche Avicole (2005)

This study investigated the influence of some physic and chemical parameters of wheat grains on the performances of broilers (Ross). Four varieties (Agami, Corvus, Folio et Meunier) were grown on a single ... [more ▼]

This study investigated the influence of some physic and chemical parameters of wheat grains on the performances of broilers (Ross). Four varieties (Agami, Corvus, Folio et Meunier) were grown on a single site in harvest year 2003. This cultivar samples are ground and included in starter (57.6 % of wheat) and growth diets (61.4 % of wheat). Broiler’s intake was not influenced (p > 0.05, n = 24) by varieties. But weights of chicken (38 days) were (p < 0.05, n = 516) higher with Folio and Meunier. Feed conversion ratios cumulated between day 3 to day 38 (FCR) were (p < 0.05, n = 24) lower with Folio and Meunier than with Corvus and Agami. Hardness was negatively correlated with FCR (r = - 0.60, p < 0.01, n = 4). The correlation between crude proteins and FCR was equal to - 0.70 (p < 0.001, n = 4). FCR was negatively correlated to Zeleny’s index (r = - 0.62, p < 0.01, n = 4), wet (r = - 0.66, p < 0.001, n = 4) and dry gluten (r = - 0.51, p < 0.05, n = 4). FCR was negatively correlated to ratio of large (> 1800 μm) particles in ground wheat (r = - 0.48, p < 0.05, n = 4) and also related to small (< 707 μm) material (r = 0.53, p < 0.01, n = 4). Surprisingly, FCR was negatively correlated with amounts of soluble Non-Starch Polysaccharides and soluble Arabinoxylans. The same pathway was observed with in vitro viscosity data. Intestinal viscosities were not related (p > 0.05, n = 24) to broiler’s performances. [less ▲]

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See detailDes enzymes exogènes pour valoriser davantage le froment chez les volailles et les porcs.
Beckers, Yves ULg; Piron, Fabien ULg; Wéry, Olvier et al

Scientific conference (2005)

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See detailImprovement of lupin seed valorisation by the pig with the addition of alpha-galactosidase in the feed and the choice of a suited variety.
Froidmont, E.; Wathelet, Bernard ULg; Beckers, Yves ULg et al

in Biotechnologie, Agronomie, Société et Environnement = Biotechnology, Agronomy, Society and Environment [=BASE] (2005), 9(4), 225-235

Three experiments were conducted to assess whether an a-galactosidase supplement improved the utilisation of lupin seeds by growing and finishing pigs and to determine the best lupin variety in presence ... [more ▼]

Three experiments were conducted to assess whether an a-galactosidase supplement improved the utilisation of lupin seeds by growing and finishing pigs and to determine the best lupin variety in presence of a-galactosidase. In experiment 1, three iso-nitrogen (iso-N) and iso-net energy (iso-NE) diets containing 15% of soybean meal (SBM diet) or 20% of lupin seeds (Lupinus albus var. Arès), with or without an a-galactosidase supplement (‘lupin’ and ‘lupin + a-gal’ diets, respectively), were ingested by 12 pigs fitted with a caecal canula, following a completely randomized experimental design. The ileal digestibility of a-galactosides tended to increase with the lupin + a-gal diet. Nitrogen retention of pigs eating the SBM diet was similar to that of those fed with the lupin + a-gal diet and higher than that observed for pigs given the lupin diet. The results suggested that a-galactosides are the main anti-nutritional factors in lupin seeds for pigs. The same diets were investigated in a production trial (experiment 2) involving 48 pigs with a live weight of between 30 and 105 kg. The fattening period was similar for the SBM and lupin + a-gal diets (107 d) and longer for the lupin diet (123 d). With the lupin diet there was a lower average daily gain (ADG, -16%) and a higher food conversion ratio (FCR, + 8%) than with the two other diets. The backfat of pigs fed with lupin-based diets contained fewer polyunsaturated fatty acids (PUFA) and had a lower w6/w3 ratio. In experiment 3, three iso-N and iso-NE diets containing different varieties of lupin (Lupinus albus cv Lublanc and Amiga; Lupinus angustifolius cv Boltensia) and an a-galactosidase supplement were investigated in 12 pigs fitted with a caecal canula, as in Exp. 1. The results showed that the digestible protein supply by the Boltensia diet was higher than in the others. However, the Boltensia variety led to a higher urinary N excretion than the Lublanc variety. The results obtained with Amiga were intermediate. Consequently, the utilisation of ingested and digested proteins was relatively high with the Lublanc diet, intermediate with the Amiga diet and low with the Boltensia diet. The results suggested that the Lublanc variety was better adapted for pig feed that contained an a-galactosidase supplement. [less ▲]

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See detailLa production de viande spécialisée, le culard Blanc Bleu Belge.
Thewis, André ULg; Beckers, Yves ULg

in Thewis, André; Bourbouze, R.; Compère, Roger (Eds.) et al Manuel de Zootechnie comparée Nord-Sud. (2005)

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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 detailUtilization of lupin (Lupinus albus var Arès) seeds in animal diets : synthetic report
Frodimont, Eric; Wavreille, José; Beckers, Yves ULg et al

Conference (2004, June)

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See detailEffect of various level of imbalance between energy ans nitrogen supplies on nitrogen metabolism in growing double-muscled Belgian Blue bulls.
Valkeners, Damien; Beckers, Yves ULg; Thewis, André ULg

in Proceeding of the British Society of Animal Science - Annual meeting (2004, April)

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See detailPotentiel zootechnique du froment d'hiver chez le poulet de chair.
Beckers, Yves ULg; Wéry, O.; Thewis, André ULg

Article for general public (2004)

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See detailEffect Of Imbalance Between Energy And Nitrogen Supplies On Microbial Protein Synthesis And Nitrogen Metabolism In Growing Double-Muscled Belgian Blue Bulls
Valkeners, Damien; Thewis, André ULg; Piron, Fabien ULg et al

in Journal of Animal Science (2004), 82(6), 1818-1825

Six double-muscled Belgian Blue bulls (initial weight: 345 ± 16 kg) with cannulas in the rumen and proximal duodenum were used in two juxtaposed 3 × 3 Latin squares to study the effect of a lack of ... [more ▼]

Six double-muscled Belgian Blue bulls (initial weight: 345 ± 16 kg) with cannulas in the rumen and proximal duodenum were used in two juxtaposed 3 × 3 Latin squares to study the effect of a lack of synchronization between energy and N in the rumen on microbial protein synthesis and N metabolism by giving the same diet according to three different feeding patterns. The feed ingredients of the diet were separated into two groups supplying the same amount of fermentable OM (FOM), but characterized by different levels of ruminally degradableN (RDN). The first group primarily provided energy for the ruminal microbes (14.6 g of RDN/kg of FOM), and the second provided N (33.3 g of RDN/kg of FOM). These two groups were fed to the bulls simultaneously or alternately with the aim of creating three different time periods of imbalance (0, 12, or 24 h) between energy and N supplies in the rumen. The introduction of imbalance affected neither microbial-N flow at the duodenum (P = 0.65) nor efficiency of growth (P = 0.69), but decreased (P = 0.016) the NDF degradation in the rumen 12.2% for a 12-h period of imbalance. N retention was not affected by imbalance (P = 0.53) and reached 57.8, 58.5, and 54.7 g/d, respectively, for 0-, 12- and 24-h imbalance. It seems that the introduction of an imbalance of 12 or 24 h between energy and N supplies for the ruminal microbes by altering the feeding pattern of the same diet does not negatively influence microbial protein synthesis or N retention by the animal. Nitrogen recycling in the rumen plays a major role in regulating the amount of ruminally availableNand allows for continuous synchronization of N- and energy-yielding substrates for the microorganisms in the rumen. Therefore, a lack of synchronization in the diet between the energy and N supplies for the ruminal microbes is not detrimental to their growth or for the animal as long as the nutrient supply is balanced on a 48-h basis. Thus, these dietary feeding patterns may be used under practical feeding conditions with minimal effect on the performance of ruminant animals. [less ▲]

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See detailLes tourteaux de lin : intérêts et limites en alimentation bovine
Beckers, Yves ULg

Scientific conference (2003, March 20)

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See detailValorisation du froment d'hiver dans l'alimentation du poulet de chair.
Wéry, O.; Thewis, André ULg; Beckers, Yves ULg

Article for general public (2003)

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See detailProduire du veau de boucherie en Wallonie : une opportunité pour les élevages laitiers.
Beckers, Yves ULg; Delbouille, L.; Thewis, André ULg

Article for general public (2003)

Detailed reference viewed: 28 (1 ULg)