Modeling efficiency and robustness in ruminants: the nutritional point of view
| Autor: | D. Sauvant |
|---|---|
| Přispěvatelé: | Modélisation Systémique Appliquée aux Ruminants (MoSAR), AgroParisTech-Université Paris-Saclay-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE), Institut National de la Recherche Agronomique (INRA)-AgroParisTech, AgroParisTech-Institut National de la Recherche Agronomique (INRA) |
| Rok vydání: | 2020 |
| Předmět: |
0301 basic medicine
Efficience alimentaire Computer science [SDV]Life Sciences [q-bio] robustness ruminant Field (computer science) Domain (software engineering) 03 medical and health sciences modèle mathématique robustesse des animaux Food Animals Modelling methods Robustness (economics) Modélisat ion mathématique 2. Zero hunger Point (typography) business.industry efficacité alimentaire 0402 animal and dairy science modeling 04 agricultural and veterinary sciences ruminants efficiency 040201 dairy & animal science élevage Feature Articles 030104 developmental biology Risk analysis (engineering) Robustesse Animal Science and Zoology Livestock animal feeding business [SDV.AEN]Life Sciences [q-bio]/Food and Nutrition mathematical model Alimentation animale |
| Zdroj: | INRAE Productions Animales INRAE Productions Animales, INRAE, 2020, 33 (1), pp.53-64. ⟨10.20870/productions-animales.2020.33.1.3128⟩ Animal Frontiers Animal Frontiers, American Society of Animal Science, 2019, 9 (2), pp.60-67. ⟨10.1093/af/vfz012⟩ Animal Frontiers 2 (9), 60-67. (2019) |
| ISSN: | 2160-6064 2273-774X 2273-7766 2160-6056 |
| DOI: | 10.20870/productions-animales.2020.33.1.3128⟩ |
| Popis: | This synthesis reviews the modeling of nutritional aspects associated with efficiency and robustness issues in ruminants. In particular, it focuses on the role of feeding unit systems in these debates. Feeding behavior and ingestion are important first criteria to consider given their relationship to animal performance. Digestive efficiency has been measured and modeled for a long time since it is an important and largely controllable component of the overall feed efficiency. Metabolic efficiency largely depends on the level of performance given the role played by the maintenance and non-productive requirements of the animals. In addition, it depends to a large extent on the organic constituents (lipids, proteins and carbohydrates) as well as the involvement of reserves and excretion functions. Robustness is an emerging property of a complex system, it involves the many facets of the homeostasis of living things and cannot, therefore, be easily evaluated and measured. In practice, it is often tackled through short-term nutritional challenges as well as through the laws of response to feed and nutrient inputs. In all the areas mentioned in this text, the individual variations are still poorly known as well as the genetic part of these variations, this encourages dedicating more work to these topics.; L’efficience et la robustesse des animaux d’élevage suscitent un intérêt croissant, en particulier pour les ruminants dont la production et les organismes sont soumis à de nombreuses contraintes. Un défi important pour la Recherche concerne l'application des méthodes de modélisation aux questions d’efficience et de robustesse. Ainsi, dans le domaine de l’alimentation animale, les récents systèmes d’unités d’alimentation ont proposé des modèles intéressants qui sont en cours d'application sur le terrain. Les approches de modélisation systémique ont été développées avec des applications prometteuses vis à vis de l'efficience et de la robustesse. |
| Databáze: | OpenAIRE |
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