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9 results on '"Rudel, Sylvie"'

1. Utilisation digestive des graines protéagineuses traitées et leur valorisation par les vaches laitières

Author

Mendowski, Solveig, Chapoutot, Patrick, Ferlay, Anne, Chesneau, Guillaume, Enjalbert, Francis, Germain, Antoine, Largeau, Vincent, Genestoux, Lucette, RUDEL, Sylvie, Noziere, Pierre, ProdInra, Migration, Unité Mixte de Recherche sur les Herbivores - UMR 1213 (UMRH), VetAgro Sup - Institut national d'enseignement supérieur et de recherche en alimentation, santé animale, sciences agronomiques et de l'environnement (VAS)-Institut National de la Recherche Agronomique (INRA)-AgroSup Dijon - Institut National Supérieur des Sciences Agronomiques, de l'Alimentation et de l'Environnement, Modélisation Systémique Appliquée aux Ruminants (MoSAR), AgroParisTech-Institut National de la Recherche Agronomique (INRA), Valorex SAS, Génétique Physiologie et Systèmes d'Elevage (GenPhySE ), École nationale supérieure agronomique de Toulouse [ENSAT]-Institut National de la Recherche Agronomique (INRA)-Ecole Nationale Vétérinaire de Toulouse (ENVT), Institut National Polytechnique (Toulouse) (Toulouse INP), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Institut National Polytechnique (Toulouse) (Toulouse INP), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées, Herbipôle, Institut National de la Recherche Agronomique (INRA), CIFRE, Institut National de la Recherche Agronomique (INRA)-VetAgro Sup - Institut national d'enseignement supérieur et de recherche en alimentation, santé animale, sciences agronomiques et de l'environnement (VAS), and Institut National de la Recherche Agronomique (INRA)-AgroParisTech

Subjects
[SDV] Life Sciences [q-bio], [SDV.GEN]Life Sciences [q-bio]/Genetics, [SDV.GEN.GA]Life Sciences [q-bio]/Genetics/Animal genetics, [SDV]Life Sciences [q-bio], [INFO]Computer Science [cs], [SHS] Humanities and Social Sciences, [SDV.GEN] Life Sciences [q-bio]/Genetics, [SDV.GEN.GA] Life Sciences [q-bio]/Genetics/Animal genetics, [INFO] Computer Science [cs], ComputingMilieux_MISCELLANEOUS, [SHS]Humanities and Social Sciences
Abstract

National audience

Published
2018

2. Differences in digestibility between cows contribute to explain differences in feed efficiency

Author

De La Torre Capitan, Anne, Andueza, Donato, Baumont, René, Renand, Gilles, Rudel, Sylvie, Genestoux, Lucette, Cantalapiedra-Hijar, Gonzalo, Noziere, Pierre, Unité Mixte de Recherche sur les Herbivores - UMR 1213 (UMRH), Institut National de la Recherche Agronomique (INRA)-VetAgro Sup - Institut national d'enseignement supérieur et de recherche en alimentation, santé animale, sciences agronomiques et de l'environnement (VAS)-AgroSup Dijon - Institut National Supérieur des Sciences Agronomiques, de l'Alimentation et de l'Environnement, Génétique Animale et Biologie Intégrative (GABI), Institut National de la Recherche Agronomique (INRA)-AgroParisTech, Herbipôle, and Institut National de la Recherche Agronomique (INRA)

Subjects
[SDV.AEN]Life Sciences [q-bio]/Food and Nutrition
Abstract

International audience; Residual Feed Intake (RFI) is a feed efficiency (FE) trait phenotypically independent of body weight and level of production. It reflects inherent between-animal variations in biological determinants of FE. Among these determinants, differences in digestion have been suggested but it may rely on the type of diets used. We tested the hypothesis of a higher digestibility in more efficient cows (low RFI) regardless of the type of diets. The objective of this study was to determine the apparent digestibility of dry matter (DMd) of high (NDF=62%) and low fibre (NDF=39%) diets in simultaneously 2 RFI divergent groups of 8 non-pregnant non-lactating Charolais cows (RFI-: -0.73±0.59, 705±96 kg and RFI+: 1.02±0.34, 711±78 kg). RFI was measured when cows were heifers (21 months old) during 12 weeks on herb silage (cultivated fescue) diet distributed ad libitum. Four periods (P) of digestion trials were carried out successively using either high (100% hay, P1 and P2) or low fibre diet (maize silage/concentrate, 67/33, P3 and P4). Each period lasted 2-3 weeks ad libitum followed by 7 days of total faeces collection at 95% ad libitum. DMd was calculated using dry matter intake (DMI) and feacal dry matter excretion. The intra period individual range of variation of DMI and DMd were closed to 4 kg/d and 6 to 8 g/100 g for both diets respectively. Differences between RFI groups were significant for DMd (P=0.024) and not for DMI (P=0.27). RFI-cows presented higher DMd than RFI+ cows for diets (61.0±1.81% vs 60.0±2.1% for high-fibre diet and 69.6±1.96% vs 68.3±1.82% for low-fibre diet). This study showed that on average feed efficient cows (RFI-) had higher digestive efficiency than non-efficient cows (RFI+) regardless of the type of diets used.

Published
2016

3. Effect of concentrate type (starch vs. fiber) and bicarbonate addition in grass silage-based diets on performance, diet digestibility and enteric methane emissions in lactating dairy cows

Author

Bougouin, Adeline, Ferlay, Anne, Doreau, Michel, Rochette, Yvanne, Rudel, Sylvie, Lascoux, Clothilde, Martin, Cécile, Unité Mixte de Recherche sur les Herbivores - UMR 1213 (UMRH), Institut National de la Recherche Agronomique (INRA)-VetAgro Sup - Institut national d'enseignement supérieur et de recherche en alimentation, santé animale, sciences agronomiques et de l'environnement (VAS)-AgroSup Dijon - Institut National Supérieur des Sciences Agronomiques, de l'Alimentation et de l'Environnement, Herbipôle, Institut National de la Recherche Agronomique (INRA), consortium méthane, and Institut National de la Recherche Agronomique (INRA)-VetAgro Sup - Institut national d'enseignement supérieur et de recherche en alimentation, santé animale, sciences agronomiques et de l'environnement (VAS)

Subjects
digestibilité, dairy cow, [SDV]Life Sciences [q-bio], food and beverages, bicarbonate, methane emission, ensilage d'herbe, concentrate type, [SHS]Humanities and Social Sciences, régime alimentaire, vache laitière, [INFO]Computer Science [cs], méthane
Abstract

International audience; Cereals and corn silage diets are extensively used for high yielding dairy cows and it is well established that altering dietary starch and fiber proportion results in methane (CH4) emissions mitigation. With grass silage-based diets, quantitative evidence of CH4 emissions reduction with high-starch concentrate is lacking. Therefore, the objective was to compare the effects of fiber-rich (F) or starch-rich (S) diets based on grass silage, supplemented or not with bicarbonate (Fb and Sb) on CH4 emissions, diet digestibility and performance in dairy cows. Four multiparous lactating Holstein cows were used in a 4x4 Latin-square design experiment of 4 periods of 4 weeks each. Four dietary treatments were assigned based on grass silage 42%, hay 8%, and F or S concentrate 50% (DM basis), supplemented or not with sodium bicarbonate (1% DMI). Bicarbonate was used as a digestive regulator to lower the risk of ruminal acidosis appearance. Intake and milk production were measured daily and milk composition weekly during the experiment. Methane production and diet digestibility were measured simultaneously for the last 5-d of each period when cows were in open respiration chambers. Feed efficiency (fat and protein corrected milk/DMI) was calculated using data from week-4. Data were analyzed using mixed-effect models with cows as random-effect, period and treatments as fixed-effects. Orthogonal contrasts were used to evaluate diet type or bicarbonate supplementation effects. The S and Sb diets induced less daily CH4 emissions (417.5 and 393.9 g.d-1, respectively) than F and Fb diets (487.9 and 506.4 g.d-1, respectively) as well as a significant decrease in CH4 intensity (-14% in g.DMI-1; -20% in g.FPCM-1). DMI was reduced by 3.5% with the starch-diets compared to fiber-diets (P < 0.05). Total tract digestibility of nutrients (DM, OM, Starch) and gross energy were lower (P < 0.05) for F and Fb than for S and Sb diets. Feed efficiency, milk yield and fat content were not different between starch- and fiber-diets (P > 0.05) but milk protein content was greater for the starch-diets (+3%, P < 0.05). Bicarbonate had no effect on diet digestibility and CH4 emissions (P > 0.05). However, milk fat content was higher (P = 0.05) with Sb than S, F and Fb diets. Feeding 50% starch-rich concentrate with grass-silage diets, with or without bicarbonate, is an effective dietary approach for reducing methane emissions without altering diet digestibility and milk performance of dairy cows.

Published
2016

4. Amylase addition increases starch ruminal digestion in dairy cows

Author

Noziere, Pierre, Steinberg, W., Laverroux, Sophie, Albarello, Helene, Amblard, Pierre, Duriot, B., Genestoux, Lucette, Graviou, Dominique, Portelli, Josiane, Rudel, Sylvie, Silberberg, Mathieu, Doreau, Michel, Morgavi, Diego, Unité Mixte de Recherche sur les Herbivores - UMR 1213 (UMRH), Institut National de la Recherche Agronomique (INRA)-VetAgro Sup - Institut national d'enseignement supérieur et de recherche en alimentation, santé animale, sciences agronomiques et de l'environnement (VAS)-AgroSup Dijon - Institut National Supérieur des Sciences Agronomiques, de l'Alimentation et de l'Environnement, Unité d'expérimentation sur les Ruminants de Theix, Institut National de la Recherche Agronomique (INRA), British Society of Animal Science (BSAS). GBR., and VetAgro Sup - Institut national d'enseignement supérieur et de recherche en alimentation, santé animale, sciences agronomiques et de l'environnement (VAS)-Institut National de la Recherche Agronomique (INRA)-AgroSup Dijon - Institut National Supérieur des Sciences Agronomiques, de l'Alimentation et de l'Environnement

Subjects
[SDV.SA]Life Sciences [q-bio]/Agricultural sciences, ComputingMilieux_MISCELLANEOUS
Abstract

International audience

Published
2012

5. Caractéristiques de finition et d'abattage de taurillons angus, limousin et blonds d'Aquitaine

Author

Micol, Didier, Picard, Brigitte, Jurie, Catherine, Faure, Pascal, Jailler, Roland, Rudel, Sylvie, Durand, Denys, Bauchart, Dominique, Hocquette, Jean-François, Unité de Recherches sur les Herbivores (URH), Institut National de la Recherche Agronomique (INRA), and ProdInra, Migration

Subjects
[SDV.SA]Life Sciences [q-bio]/Agricultural sciences, [SDV.SA] Life Sciences [q-bio]/Agricultural sciences, ComputingMilieux_MISCELLANEOUS
Abstract

National audience

Published
2010

6. A seven hour interval between the two daily milkings does not change milk yield of dairy cows in mid-lactation

Author

Rémond, Bernard, Pomiès, Dominique, Bonnefoy, Jean-Claude, Rudel, Sylvie, ProdInra, Migration, VetAgro Sup - Institut national d'enseignement supérieur et de recherche en alimentation, santé animale, sciences agronomiques et de l'environnement (VAS), Unité de Recherches sur les Herbivores (URH), and Institut National de la Recherche Agronomique (INRA)

Subjects
[SDV] Life Sciences [q-bio], [SDV]Life Sciences [q-bio], [INFO]Computer Science [cs], [SHS] Humanities and Social Sciences, [INFO] Computer Science [cs], ComputingMilieux_MISCELLANEOUS, [SHS]Humanities and Social Sciences
Abstract

National audience

Published
2010

7. Un gisement de données pour une analyse intégrative appliquée à la production de viande bovine

Author

Brun, Jean-Paul, Espinasse, Christiane, Rudel, Sylvie, Durand, Denys, Hocquette, Jean-François, Jurie, Catherine, Picard, Brigitte, Unité de Recherches sur les Herbivores (URH), Institut National de la Recherche Agronomique (INRA), and ProdInra, Migration

Subjects
[SDV] Life Sciences [q-bio], INFORMATIQUE, [SDV]Life Sciences [q-bio], [INFO]Computer Science [cs], [INFO] Computer Science [cs], ComputingMilieux_MISCELLANEOUS
Abstract

National audience

Published
2007

8. Influence d'un régime de finition riche en céréales sur la croissance et la composition corporelle de jeunes bovins Limousins et Charolais

Author

Hocquette, Jean-François, RUDEL, Sylvie, JAILLIER, R., Levéziel, Hubert, Agabriel, Jacques, Micol, Didier, Unité de Génétique Moléculaire Animale (UMR GMA), Institut National de la Recherche Agronomique (INRA)-Université de Limoges (UNILIM), and ProdInra, Migration

Subjects
[SDV] Life Sciences [q-bio], BODY COMPOSITION, [SDV]Life Sciences [q-bio], GROWTH, BEEF CATTLE, FEEDING, ComputingMilieux_MISCELLANEOUS, LIMOUSINE CATTLE BREED, CHAROLAISE CATTLE BREED
Abstract

National audience

Published
2002

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