Adaptation de conduites d'élevage ovin allaitant à une diminution du chargement. Exemple en moyenne montagne

Brelurut, Alain; Louault, Frédérique; Benoît, Marc; Tournadre, Hervé; Montard, F.X. de; Thériez, M.; Liénard, G.; Dedieu, Benoît; Laignel, Gabriel

doi:10.1051/animres:19980515

Cited by 4 publications

(1 citation statement)

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“…As the pasture utilization rate (i.e., the ratio of grazing pressure to maximum standing biomass) was only 37% at 0.6 LU ha −1 , an additional goal of limiting scrub encroachment was added in F4. Grassland management led to (i) reducing farm-scale N inputs by 70% with no mineral fertilization in plots where grassland management was assumed to favor white clover; (ii) grazing early, ewes returning to pastures every 3 weeks during spring so that they browse young shoots of broom; (iii) controlling grass growth by early cuts for stocks in spring; (iv) grazing far-away plots in late spring and summer to limit shrub encroachment; and (v) grazing during winter to exploit residual herbage and preserve sward quality (Brelurut et al, 1998;Louault et al, 1998). Shrub encroachment was twice as slow in F4 as compared with F3, while system technical and economic performances were excellent for upland areas, with a 153% increase in ewe annual productivity (Dedieu et al, 2002) and only 59 kg of concentrate per ewe and per year (Brelurut et al, 1998).…”

Section: Farm Extensification and Transition To Organic Farming In Upmentioning

confidence: 99%

Mobilizing Ecological Processes for Herbivore Production: Farmers and Researchers Learning Together

Dumont¹,

Modernel²,

Benoît³

et al. 2020

Front. Sustain. Food Syst.

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Section: Farm Extensification and Transition To Organic Farming In Upmentioning

confidence: 99%

Mobilizing Ecological Processes for Herbivore Production: Farmers and Researchers Learning Together

Dumont¹,

Modernel²,

Benoît³

et al. 2020

Front. Sustain. Food Syst.

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Management of Grazing Systems: From Decision and Biophysical Models to Principles for Action

Duru¹,

Hubert²

2009

Sustainable Agriculture

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Changes in forage systems taking into account new environmental issues often lead to a reappraisal of the agricultural practices by farmers. These changes also raise new issues about the relevancy of traditional practices of grassland management. We therefore propose an analytical scheme to describe a production plan compatible with land resources (sown or native grasslands). To that end, we present a conceptual model that can be used to design a set of grazing management practices suited to a diversity of specifications. It involves a combination of defoliation and fertiliser practices, allowing different targets to be achieved in terms of herbage yield, composition and grassland biodiversity. Finally, we suggest several management principles underlying these changes in forage systems. These management principles allow the taking of decisions on a monthly to yearly basis, to assess the conformity between farm resources and farmers' objectives, and to coordinate different combinations of herd and land at different periods of the year. grazing / model / decision / extensification / fertilisation Résumé-Gestion des systèmes de pâturage : des modèles biophysiques et de décision aux principes pour l'action. Les transformations des systèmes fourragers nécessaires à la prise en compte de nouvelles préoccupations (environnement, qualité des produits) se traduisent souvent par une désintensification. Il s'agit d'abord de reconsidérer les entités gérées par les éleveurs. Nous proposons un cadre d'analyse permettant de décliner un projet d'ensemble en objectifs cohérents attachés à chacune de ces entités et compatibles avec les ressources en surfaces, en fourrages cultivés ou spontanés. Ces choix remettent aussi en cause les références habituelles sur la conduite des prairies. C'est pourquoi nous présentons ensuite un modèle conceptuel qui permet de définir des itinéraires techniques adaptés à une diversité de cahiers des charges, d'une part en caractérisant les modes de conduite à partir des pratiques de défoliation et de fertilisation (efficience d'utilisation des ressources, flexibilité), d'autre part en rendant compte de leurs effets sur la production de biomasse et sur la diversité spécifique et fonctionnelle des végétations pâturées. Enfin, nous énonçons quelques principes comme autant de préalables à la création d'outils permettant d'accompagner de telles transformations. Ces principes permettent de raisonner les décisions pluriannuelles (cohérences entre les ressources et les objectifs) et annuelles (coordination entre les différentes "saisons-pratiques").

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Impacts of extensive grazing and abandonment on grassland soils and productivity

Marriott¹,

Fisher²,

Hood³

et al. 2010

Agriculture, Ecosystems & Environment

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Adaptation de conduites d'élevage ovin allaitant à une diminution du chargement. Exemple en moyenne montagne

Cited by 4 publications

References 0 publications

Mobilizing Ecological Processes for Herbivore Production: Farmers and Researchers Learning Together

Mobilizing Ecological Processes for Herbivore Production: Farmers and Researchers Learning Together

Management of Grazing Systems: From Decision and Biophysical Models to Principles for Action

Impacts of extensive grazing and abandonment on grassland soils and productivity

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