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1. Effect of dietary tannins on milk yield and composition, nitrogen partitioning and nitrogen use efficiency of lactating dairy cows: A meta‐analysis

Author

Sophie Herremans, Eric Froidmont, Virginie Decruyenaere, Frédéric Vanwindekens, and Yves Beckers

Subjects
Nitrogen, 040301 veterinary sciences, Forage, 0403 veterinary science, chemistry.chemical_compound, Animal science, Food Animals, Ruminant, Animals, Lactation, Tannin, Ammoniacal nitrogen, Nitrogen cycle, chemistry.chemical_classification, biology, 0402 animal and dairy science, 04 agricultural and veterinary sciences, biology.organism_classification, Animal Feed, 040201 dairy & animal science, Diet, Milk, chemistry, Polyphenol, Urea, Animal Nutritional Physiological Phenomena, Cattle, Female, Animal Science and Zoology, Composition (visual arts), Tannins
Abstract

Tannins are secondary plant compounds which have been extensively studied in order to improve the nitrogen use efficiency (NUE) of ruminants. A meta-analysis was performed of 58 in vivo experiments comparing milk yield, composition and nitrogen metabolism of lactating dairy cows fed diets with or without tannins. The meta-analysis shows that tannins have no impact on corrected milk yield, fat and protein content or NUE (p > .05). However, tannins reduce ruminal ammoniacal nitrogen (N) production by 16% (from 10.95 to 8.47 mg/dl on average), milk urea by 9% (from 15.82 to 14.03 mg/dl) and urinary N excretion (-11%; p < .05). This is compensated for by a lower apparent N digestibility (61.51% with dietary tannins compared to 66.17% without). The effect of tannin on N metabolism parameters increases with tannin dose (p < .05). The shift from urinary to faecal N may be beneficial for environment preservation, as urinary N induces more harmful emissions than faecal N. From a farmer's perspective, tannins seem unable to increase fat- and protein-corrected milk yield or reduce feed protein requirements and thus have no direct economic benefit. Potentially less costly than tannin extracts, forage or by-products naturally rich in tannins could still be useful to reduce the environmental impact of ruminant protein feeding.

Published
2020

2. PPILOW: innovations for improving animal welfare and human well-being in low-input outdoor and organic poultry and pig production systems

Author

Lucia Rocchi, Anne Collin, Giuditta Meloni, Claire Bonnefous, Martina Re, Laura van Vooren, An Jamart, Jarkko Niemi, Minna Väre, Katja Lähtinen, Tuyttens, Frank A. M., Mirjan Thys, Evelien Graat, Charlotte Vanden Hole, Tb (bas) Rodenburg, Saskia Kliphuis, Mona Giersberg, Antoine Roinsard, Olivia Tavares, Brieuc Desaint, Sanna Steenfeldt, Pedersen, Lene J., Engberg, Ricarda M., Isam Almadani Mohamad, Riccardo Carelli, Marlene Sciarretta, Andrea Rosati, Guilloteau, Laurence A., Sophie Réhault-Godbert, Joël Gautron, Elisabeth Le Bihan-Duval, Sandrine Mignon-Grasteau, Cécile Berri, Alexandre Barbin, Elodie Guettier, Elisabeth Baéza, Pascal Chartrin, Thierry Bordeau, Emilie Raynaud, Nathalie Couroussé, Estelle Cailleau-Audouin, Sabine Crochet, Pauline Bodin, Léa Tourneur, Adrien Guichaoua, Henry van den Brand, Bas Kemp, Cesare Castellini, Maxime Reverchon, Daniel Guemene, Michel Sourdioux, Sophie Brard-Fudulea, Roland Akakpo, Frédérique Renard-Dewinter, Ninfa Rangel Pedersen, Brunsgaard Grete, Rene Schepens, Maria Almind, Stefaan Depraetere, Katia Grenier, David Dubuc, Marie-Véronique Le Lann, Raffaella Ponzio, Marina Mainardi, Caterina Accotto, Monica Coletta, Vanessa Guesdon, Hélène Leruste, Bérangère Billiard, Vitor Hugo Bessa Ferreira, Keith Walley, Patricia Parrott, Shelley Allan, Lisa Baldinger, Helen Pluschke, Elsa Delanoue, Florence Macherez, Warin Laura, Jonathan Hercule, Marion Pertusa, Mathilde Stomp, Angelique Travel, Isabelle Bouvarel, Karine Germain, Laure Ravon, Ludovic Calandreau, Valérie Labas, Armelle Prunier, Elodie Merlot, Céline Tallet, Marie-Hélène Perruchot, Isabelle Louveau, Milgen, Jaap J., Frederic Dessauge, Caroline Clouard, Marie-Christine Meunier-Salaün, Bénédicte Lebret, Lucile Montagne, Justine Faure, Anna Zuliani, Pietro Venezia, Canario, Laurianne L., Stéphane Ferchaud, Vasile Cozma, Marina Spinu, Mihai Horia Bǎieş, Valérie Courboulay, Christine Roguet, Didier Gaudré, Patrick Chevillon, Laurent Alibert, Virginie Decruyenaere, Sophie Herremans, José Wavreille, Pia Vanggaard, Jan Bro Vanggaard, Cristina Micheloni, Petra Thobe, Università degli Studi di Perugia = University of Perugia (UNIPG), Biologie des Oiseaux et Aviculture (BOA), Université de Tours (UT)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE), Associazione Italiana per l'Agricoltura Biologica (AIAB), Scuela Santa Anna (SSSA), Scuola Universitaria Superiore Sant'Anna [Pisa] (SSSUP), BioForum Vlaanderen, Natural Resources Institute Finland (LUKE), Research Institute for Agricultural, Fisheries and Food (ILVO), Utrecht University [Utrecht], Institut Technique de l'Agriculture Biologique (ITAB), Aarhus University [Aarhus], Thuenen Institute of Farm Economics, European Association for Animal Production (EAAP), Les instituts techniques agricoles (Acta), Wageningen University and Research [Wageningen] (WUR), Syndicat des Sélectionneurs Avicoles et Aquacoles Français (SYSAAF), Fermentation Experts, Circular Organics, Équipe Micro et nanosystèmes HyperFréquences Fluidiques (LAAS-MH2F), Laboratoire d'analyse et d'architecture des systèmes (LAAS), Université Toulouse Capitole (UT Capitole), Université de Toulouse (UT)-Université de Toulouse (UT)-Institut National des Sciences Appliquées - Toulouse (INSA Toulouse), Institut National des Sciences Appliquées (INSA)-Université de Toulouse (UT)-Institut National des Sciences Appliquées (INSA)-Université Toulouse - Jean Jaurès (UT2J), Université de Toulouse (UT)-Université Toulouse III - Paul Sabatier (UT3), Université de Toulouse (UT)-Centre National de la Recherche Scientifique (CNRS)-Institut National Polytechnique (Toulouse) (Toulouse INP), Université de Toulouse (UT)-Université Toulouse Capitole (UT Capitole), Université de Toulouse (UT), Équipe DIagnostic, Supervision et COnduite (LAAS-DISCO), Slow Food Biodiversity, JUNIA (JUNIA), Université catholique de Lille (UCL), Harper Adams University, Thuenen-Institute of Organic Farming, ITAVI, Institut de l'élevage (IDELE), Elevage Alternatif et Santé des Monogastriques (UE EASM), Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE), Physiologie de la reproduction et des comportements [Nouzilly] (PRC), Institut Français du Cheval et de l'Equitation [Saumur] (IFCE)-Université de Tours (UT)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE), Physiologie, Environnement et Génétique pour l'Animal et les Systèmes d'Elevage [Rennes] (PEGASE), Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-INSTITUT AGRO Agrocampus Ouest, Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)-Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro), SIVtro VSF Italia, Génétique Physiologie et Systèmes d'Elevage (GenPhySE ), Ecole Nationale Vétérinaire de Toulouse (ENVT), Institut National Polytechnique (Toulouse) (Toulouse INP), Université de Toulouse (UT)-Université de Toulouse (UT)-Institut National Polytechnique (Toulouse) (Toulouse INP), Université de Toulouse (UT)-Université de Toulouse (UT)-École nationale supérieure agronomique de Toulouse (ENSAT), Université de Toulouse (UT)-Université de Toulouse (UT)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE), Unité Expérimentale Elevages Porcins Innovants (GenESI), USAMV Cluj-Napoca, Institut du Porc (IFIP), Centre Wallon de Recherches Agronomiques (CRA-W), Vanggaard Staldmontage, The PPILOW project has received funding from the European Union’s Horizon 2020 Research and Innovation Programme under grant agreement N°816172., One Welfare CIC, PPILOW, and European Project: 816172,H2020-EU.3.2.1.1. - Increasing production efficiency and coping with climate change, while ensuring sustainability and resilience ,PPILOW (2019)

Subjects
[SDV.SA]Life Sciences [q-bio]/Agricultural sciences, [SDV.GEN]Life Sciences [q-bio]/Genetics, [SCCO]Cognitive science, [SDV.BA]Life Sciences [q-bio]/Animal biology, [SDV.AEN]Life Sciences [q-bio]/Food and Nutrition, [SDV.BDD]Life Sciences [q-bio]/Development Biology, ComputingMilieux_MISCELLANEOUS, [SHS]Humanities and Social Sciences
Abstract

International audience

Published
2021

3. Silage additives to reduce protein degradation during ensiling and evaluation of in vitro ruminal nitrogen degradability

Author

Yves Beckers, Eric Froidmont, Virginie Decruyenaere, and Sophie Herremans

Subjects
Silage, 0402 animal and dairy science, chemistry.chemical_element, 04 agricultural and veterinary sciences, Management, Monitoring, Policy and Law, Protein degradation, 040201 dairy & animal science, Nitrogen, In vitro, Red Clover, chemistry, 040103 agronomy & agriculture, 0401 agriculture, forestry, and fisheries, Fermentation, Food science, Agronomy and Crop Science
Published
2018

4. Effects of hydrolysable tannin-treated grass silage on milk yield and composition, nitrogen partitioning and nitrogen isotopic discrimination in lactating dairy cows

Author

Eric Froidmont, Gonzalo Cantalapiedra-Hijar, Virginie Decruyenaere, Sophie Herremans, Yves Beckers, Walloon Agricultural Research Centre, 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)-AgroSup Dijon - Institut National Supérieur des Sciences Agronomiques, de l'Alimentation et de l'Environnement-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE), and Université de Liège - Gembloux

Subjects
Hydrolysable tannin, Rumen, 040301 veterinary sciences, Silage, Nitrogen, [SDV]Life Sciences [q-bio], Urine, Poaceae, SF1-1100, tannin, 0403 veterinary science, Excretion, Feces, Animal science, Ruminant, Tannin, Animals, Lactation, N use efficiency, Dairy cattle, 2. Zero hunger, chemistry.chemical_classification, Cross-Over Studies, [SDV.BA.MVSA]Life Sciences [q-bio]/Animal biology/Veterinary medicine and animal Health, biology, Nitrogen Isotopes, 15N, Fatty Acids, 0402 animal and dairy science, dairy cattle, food and beverages, 04 agricultural and veterinary sciences, biology.organism_classification, 040201 dairy & animal science, Hydrolyzable Tannins, Animal culture, Diet, Milk, chemistry, Animal Science and Zoology, Cattle, Digestion, Female, excretion, Tannins, [SDV.AEN]Life Sciences [q-bio]/Food and Nutrition
Abstract

International audience; The objective of this study was to evaluate the effects of oak tannin extract (OTE) added in forage before ensiling on dairy cows fed at 92% of their digestible protein requirements. Six multiparous lactating Holstein cows were used in a crossover design (two treatments × two periods). The control treatment (CON) was based on a diet including 50% of grass silage, whereas the experimental treatment (TAN) included grass silage sprayed with OTE (26 g/kg DM) just before baling. Milk yield (on average 24 kg fat protein corrected milk per day) was not affected, but both milk and rumen fatty acids profiles were impacted by OTE. Nitrogen intake (415 g N per cow per day) and nitrogen use efficiency (NUE; 0.25 on average) were not affected, but a shift from urine (-8% of N intake relatively to control, P = 0.06) to faecal N (+5%; P = 0.004) was observed with the TAN diet (P ≤ 0.05). Nitrogen apparent digestibility was thus reduced for TAN (-3%; P ≤ 0.05). The effect of OTE on ruminal and milk FA profiles suggests an impact on rumen microbiota. Nitrogen isotopic discrimination between animal proteins and diet (Δ15N) was evaluated as a proxy for NUE. While no differences in NUE were observed across diets, a lower Δ15N of plasma proteins was found when comparing TAN v. CON diets. This finding supports the concept that Δ15N would mainly sign the N partitioning at the metabolic level rather than the overall NUE, with the latter also being impacted by digestive processes. Our results agree with a N shift from urine to faeces, and this strategy can thus be adopted to decrease the environmental impact of ruminant protein feeding

Published
2020

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