References of "Piron, Fabien"
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See detailInfluência da modalidade de apresentação do trigo
Piron, Fabien ULg; Philippart de Foy, Martin; Thewis, André ULg et al

Article for general public (2011)

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See detailInfluencia de la modalidad de presentación del trigo
Piron, Fabien ULg; Philippart de Foy, Martin; Thewis, André ULg et al

Article for general public (2010)

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See detailConsots-mateurs ou Consom'acteurs !
Piron, Fabien ULg

Conference given outside the academic context (2010)

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See detailUtilisation des enzymes en alimentation porcine et avicole
Beckers, Yves ULg; Piron, Fabien ULg

in CRA-W (Ed.) Impact de l'alimentation sur la santé animale : nouveaux développements (2009)

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See detailLes coproduits européens issus du bioéthanol produit au départ de céréales ont une composition chimique variable
Piron, Fabien ULg; Bruyer, Denis; Thewis, André ULg et al

in journées de la recherche avicole (2009)

There is worldwide increasing interest in producing ethanol from grains. Currently, maize is the main grain used in fuel ethanol production (particularly in the USA). However, in Western Europe and Canada ... [more ▼]

There is worldwide increasing interest in producing ethanol from grains. Currently, maize is the main grain used in fuel ethanol production (particularly in the USA). However, in Western Europe and Canada, wheat is the main grain for ethanol plants. Barley, rye, sorghum or combinations of grains are also used. The process of ethanol production from grains generates by-products (distillers’ grains, solubles and/or gluten feed) with potential in livestock feed. Consequently, a better knowledge of chemical composition of these by-products is essential. The aim of the present study was to chemically characterise 14 batches of by-products (mainly from wheat, but also from barley and maize) purchased from some plants in Western Europe. Starch was almost completely removed by ethanol production process. Consequently, crude protein and fibre were concentrated in by-products with regard to grain value. Ratios of by-products to grain (wheat is reference) varied between 1.6 and 3.2 (protein), 1.6 and 2.7 (NDF) and 2.3 and 5.1(ADF). Furthermore, heat treatment used during the production process of dried distillers’ grains could cause destruction of important amounts of some amino acids, especially lysine (Maillard reactions). Ratios of lysine to crude protein varied among batches of byproducts and were particularly poor and unstable for distillers’ grains. In conclusion, chemical composition of European by-products of ethanol fuel produced from grains is variable. It is particularly important for wheat-based distillers’ grains. More information is needed about digestibility and availability of nutriments from these by-products. Particularly, lysine concentration and availability are probably one of the main concerns for nutritive value of by-products of ethanol fuel produced from grains. [less ▲]

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See detailWheat-based dried distillers’ grains are variable in chemical composition
Piron, Fabien ULg; Bruyer, Denis; Thewis, André ULg et al

in Garnsworthy, P., C.; Wiseman, J. (Eds.) Recent Advances in Animal Nutrition 2008 (2009)

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See detailEffets de la dureté des grains et du mode de présentation du froment sur la digestion de l'amidon chez le poulet de chair
Piron, Fabien ULg; Collin, Cécile; Bodson, Bernard ULg et al

Scientific conference (2007, February 28)

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See detailComparaison de quatre modalités de présentation du blé chez le poulet de chair
Piron, Fabien ULg; Philippart de Foy, Martin; Thewis, André ULg et al

in journées de la recherche avicole (2007)

This study investigated the influence of four modalities of wheat (Triticum aestivum L.) presentations on the performances and digestive tract characteristics of broilers (Ross). The variety of wheat was ... [more ▼]

This study investigated the influence of four modalities of wheat (Triticum aestivum L.) presentations on the performances and digestive tract characteristics of broilers (Ross). The variety of wheat was Meunier. The first dietary treatment (Milled) corresponded to milled wheat (hammer mill, sieve of 3 mm). The second treatment (Rolled) was related to rolled wheat. The third dietary treatment (Whole-Advanced) corresponded to 10 % whole wheat for first week of study (d 10 to d 17), 20 % whole wheat for second week of study (d 17 to d 24) and 30 % after d 24. The fourth treatment (Whole-Belated) was similar to the third, except a delay equals to 1 week (10 % for d 17 to d 24, 20 % for d 24 to d 31 and 30 % after d 31). Except for the first week of study, intake of Milled was inferior (p < 0.05) to other treatments. From the second week (between d 17 and d 24), growth related to Rolled was higher (p < 0.05) than two whole wheat treatments. From the third week (between d 24 and d 31), growth related to Rolled was also higher (p < 0.05) than Milled. Cumulated feed conversion ratio (FCRc) of Milled and Rolled was better (p < 0.05) than FCRc of whole wheat treatments (30 % of whole grain in fine). With this two whole wheat incorporation schemes, 20 or 30 % of whole grain was superior (p < 0.05) to Milled for FCR. The gizzards of broilers related to whole wheat were proportionally heavier (p < 0.05) than gizzards associated to Milled or Rolled. Rolled was not different (p > 0.05) from Milled for weights of gizzards. [less ▲]

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See detailL’utilisation du blé dans l’alimentation du poulet de chair en Wallonie
Piron, Fabien ULg; Wéry, Olivier; Bodson, Bernard ULg et al

Conference given outside the academic context (2007)

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See detailEffets de l’interaction entre la dureté des grains et le mode de présentation du blé sur la digestion de l’amidon chez le poulet de chair.
Piron, Fabien ULg; Collin, Cécile; Beckers, Yves ULg et al

in journées de la recherche avicole (2007)

This study investigates the effect of interaction between hardness of grains and modality of wheat (Triticum aestivum L.) presentation on starch digestion in broiler chickens. A digestive trial (without ... [more ▼]

This study investigates the effect of interaction between hardness of grains and modality of wheat (Triticum aestivum L.) presentation on starch digestion in broiler chickens. A digestive trial (without starvation) was conducted (d 34 to d 38) with 108 chickens (Ross) divided in 36 groups. Two varieties of wheat were included at 60 % in diets: Deben (soft, hardness = 27) and Folio (hard, hardness = 82). The first modality of presentation (Fine) corresponded to finely milled wheat (hammer mill, sieve of 2 mm). The second (Coarse) was related to coarsely milled wheat (hammer mill, sieve of 5 mm). The third dietary treatment (Whole) corresponded to 10 % whole wheat between d 10 to d 17, 20 % from d 17 to d 24 and 30 % after d 24. Hardness (varieties), modalities of presentation and their interaction did not influence ingested starch (p > 0.05). Hardness interacted significantly (p < 0.05) with presentation of wheat on excreted starch and starch digestibility. But quantities of digested starch were not significantly different between the six treatments (p > 0.05). The starch digestibility of Folio-Fine was significantly (p < 0.05) lower than five other treatments. Moreover, starch digestibility of Whole was (p < 0.05) better than Coarse for Deben only. On the other hand, starch digestibility was not significantly different between Deben-Coarse and Folio-Coarse (p > 0.05). Similarly, starch digestibility of Deben-Whole was not significantly different than Folio-Whole (p > 0.05). In conclusion, fine milling (2 mm) of hard variety (Folio) was involved in reduction of starch digestibility. [less ▲]

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See detailValorisation du blé fourrager dans l'alimentation du poulet de chair.
Beckers, Yves ULg; Piron, Fabien ULg; Wéry, Olivier et al

Conference given outside the academic context (2005)

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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 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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