La base documentaire de l'IFIP

La base documentaire de l'IFIP : des centaines de documents à télécharger ou bien à commander.

Résultats 1 à 3 de 3 résultats
Rechercher une documentation
Publication Annéetrier par ordre croissant

Review: Towards the agroecological management of ruminants, pigs and poultry through the development of sustainable breeding programmes: I-selection goals and criteria

Consulter le resumé

Agroecology uses natural processes and local resources rather than chemical inputs to ensure production while limiting the environmental footprint of livestock and crop production systems. Selecting to achieve a maximization of target production criteria has long proved detrimental to fitness traits. However, since the 1990s, developments in animal breeding have also focussed on animal robustness by balancing production and functional traits within overall breeding goals. We discuss here how an agroecological perspective should further shift breeding goals towards functional traits rather than production traits. Breeding for robustness aims to promote individual adaptive capacities by considering diverse selection criteria which include reproduction, animal health and welfare, and adaptation to rough feed resources, a warm climate or fluctuating environmental conditions. It requires the consideration of genotype × environment interactions in the prediction of breeding values. Animal performance must be evaluated in low-input systems in order to select those animals that are adapted to limiting conditions, including feed and water availability, climate variations and diseases. Finally, we argue that there is no single agroecological animal type, but animals with a variety of profiles that can meet the expectations of agroecology. The standardization of both animals and breeding conditions indeed appears contradictory to the agroecological paradigm that calls for an adaptation of animals to local opportunities and constraints in weakly artificialized systems tied to their physical environment.

2016

Review: Towards the agroecological management of ruminants, pigs and poultry through the development of sustainable breeding programmes. II. Breeding strategies

Consulter le resumé

Agroecology uses ecological processes and local resources rather than chemical inputs to develop productive and resilient livestock and crop production systems. In this context, breeding innovations are necessary to obtain animals that are both productive and adapted to a broad range of local contexts and diversity of systems. Breeding strategies to promote agroecological systems are similar for different animal species. However, current practices differ regarding the breeding of ruminants, pigs and poultry. Ruminant breeding is still an open system where farmers continue to choose their own breeds and strategies. Conversely, pig and poultry breeding is more or less the exclusive domain of international breeding companies which supply farmers with hybrid animals. Innovations in breeding strategies must therefore be adapted to the different species. In developed countries, reorienting current breeding programmes seems to be more effective than developing programmes dedicated to agroecological systems that will struggle to be really effective because of the small size of the populations currently concerned by such systems. Particular attention needs to be paid to determining the respective usefulness of cross-breeding v. straight breeding strategies of well-adapted local breeds. While cross-breeding may offer some immediate benefits in terms of improving certain traits that enable the animals to adapt well to local environmental conditions, it may be difficult to sustain these benefits in the longer term and could also induce an important loss of genetic diversity if the initial pure-bred populations are no longer produced. As well as supporting the value of within-breed diversity, we must preserve between-breed diversity in order to maintain numerous options for adaptation to a variety of production environments and contexts. This may involve specific public policies to maintain and characterize local breeds (in terms of both phenotypes and genotypes), which could be used more effectively if they benefited from the scientific and technical resources currently available for more common breeds. Last but not least, public policies need to enable improved information concerning the genetic resources and breeding tools available for the agroecological management of livestock production systems, and facilitate its assimilation by farmers and farm technicians.

2016

Agroécologie appliquée aux élevages porcins

Consulter le resumé

Fiche n° 067 : des actions de R&D pour répondre aux politiques publiques

L’agroécologie est présentée comme une voie d’amélioration des systèmes agricoles. Ce néologisme désigne une discipline scientifique au carrefour de l’écologie et de l’agronomie et est également repris par les Pouvoirs publics pour orienter l’évolution des systèmes agricoles. Dans son acception scientifique (relayée par le GIS Elevages Demain), l’agro-écologie se définit comme l’application des concepts et principes de l’écologie à la conception et à la gestion d’agroécosystèmes durables. La question du bouclage des cycles permettant de limiter les intrants et les pollutions par une réutilisation des produits issus des différents ateliers est au coeur de ces problématiques. Il est également visé un recours accru à des régulations biologiques et écologiques que l’on cherchera alors à piloter au mieux des attendus de l’élevage.
Le GIS élevages demain a confié à un groupe de travail d’oeuvrer à une meilleure appropriation des concepts de l’agroécologie par les filières animales.
L’IFIP participe à ce groupe. La mise en oeuvre des principes de l’agroécologie est présumée plus aisée dans les systèmes de production les moins
dépendants en intrants extérieurs (aliments et fertilisants minéraux). Leurs terres produisent les céréales pour l’alimentation des porcs (fabrication d’aliments à la ferme) et valorisent les effluents de l’élevage ; le recyclage ainsi opéré étant pressenti comme favorable à l’environnement. Le projet européen
Cantogether s’est donné les moyens de vérifier cela par une évaluation de cas-types mixtes à l’échelle d’exploitations et de territoires. Parmi les cas types, une exploitation porcine du Sud-Ouest de la France a été retenue et suivie par l’IFIP.

PDF icon fiche_bilan2015_067.pdf
2016