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Découvrir la station expérimentale de l’Ifip

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Eric Gault, Porc Mag (FRA), 2018, n° 536, novembre, p. 26

L’Ifip a publié sur sa chaîne You Tube une vidéo pour découvrir la station expérimentale de l’Ifip à Romillé (35).

2018

Feed eco-design: how to make a good decision? Part 2- rebound effects of eco-feed production

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Sandrine Espagnol et al., 11th International conference on life assessment of food 2018 (LCA Food), 17-19 octobre 2018, Bangkok, Thaïlande

This study takes place in a context where the feed manufacturers have access to eco-labeling databases which allow them to do eco-design and produce feeds with less environmental impacts. First results of eco-feed show substitutions between feedstuffs compared to standard feed. Therefore, the objective of this study is to identify the rebound effects of the production of eco-feed for pigs if the practice becomes widespread in France. A mind map was built with 5 experts to identify in a qualitative way the panel of different consequences. We then focused on the one concerning the change of crop rotations to produce eco-feed. We chose a virtual territory dedicated to produce the feedstuffs for a pig farm and assessed the environmental impacts by LCA using different functional units and perimeters. The situation with the production of eco-feeds can appeared better or worse compared to the production of standard feeds. This work underlines the complexity of eco-design and the limit to do it with data from attributional LCA. It is necessary to complete the databases by information to make the users aware of the rebounds effects invisible during the eco-design process.

PDF icon Sandrine Espagnol et al., LCA Food 2018, 17-19 octobre 2018, Bangkok,
2018

Le porc par les chiffres 2018-2019

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Les chiffres clés les plus récents des filières porcines dans le monde et l’UE (production, consommation, cheptel...) et de la filière porcine en France ; les données utiles pour se repérer tout au long de l’année et à avoir toujours sous la main : un outil indispensable à tous !

  • les échanges (import/export),
  • les élevages de porcs (cheptel/régions, commerce et signes de qualité),
  • les coûts des bâtiments, le secteur de l’aliment pour porc,
  • la sélection (truies, insémination, évolutions génétiques),
  • l’abattage (entreprises, classement des carcasses, paiement au TMP),
  • le secteur de la charcuterie (entreprises et produits),
  • la consommation des viandes et la distribution des produits du porc

sous forme de tableaux, cartes, graphiques. 

Un fichier powerpoint contenant les principaux graphiques complète la brochure ; les visuels présentant chaque maillon de la filière peuvent directement servir à la préparation d’interventions techniques. Il vous sera envoyé sur simple demande : ifip@ifip.asso.fr

Edition IFIP, 38 pages, 16 X 24

25,00 €
2018

One Health et sécurité sanitaire : de la plante à l'animal consommateur et consommé

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Visuels de Eric Royer, Séminaire Réseau Français Santé Végétale, 3 octobre 2018, Paris, 44 pages

PDF icon Visuels de Eric Royer, Séminaire Réseau Français Santé Végétale, 3 octobre 2018, Paris, 44 pages
2018

L’intelligence artificielle entre dans les élevages

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Michel Marcon, Réussir Porc-Tech Porc (FRA), 2018, n° 261, septembre, p. 64-65

De nouvelles solutions capables d’améliorer la gestion quotidienne de l’élevage font appel à l’intelligence artificielle. Parmi elles, un système de détection précoce de pathologies est testé actuellement par l’Ifip.

PDF icon Michel Marcon, Réussir Porc-Tech Porc (FRA), 2018, n° 261, septembre, p. 64-65
2018

Diversité des productions porcines en France

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Jean-Yves Dourmad et al., Innovations agronomiques (FRA), 2018, volume 68, octobre, p. 151-170

Alors que la production porcine française est souvent perçue comme uniforme, il existe une assez grande diversité en termes d'organisation et taille des élevages et d'insertion dans l'exploitation agricole. Les élevages spécialisés représentent 39% des exploitations et 61% du cheptel alors que pour 38% des exploitations l'élevage porcin est associé à la présence de bovins. Au niveau des produits la diversification est surtout assurée en aval par le tri des carcasses et des pièces de découpe, et la transformation. Le porc est en effet valorisé à 75% sous la forme d'une grande diversité de produits transformés qui contraste avec la faible diversité de l'offre en viande fraiche. Depuis quelques années on assiste au développement de différentes démarches valorisant l'origine ou le mode d'élevage. Les leviers de différenciation concernent souvent plusieurs dimensions comme la race des animaux, l'origine géographique des produits, leurs qualités organoleptique ou diététique, l'absence ou la présence de certains composés dans l'alimentation des animaux, le bien-être animal et la production biologique. Cette évolution est favorisée par le renforcement des liens entre les groupements de producteurs et l'aval, y compris jusqu’à la transformation et la distribution.

https://www6.inra.fr/ciag/content/download/6490/47897/file/Vol68-7-Dourmad%20et%20al.pdf

Diversity of pig production in France

Although French pig production is generally perceived as uniform, a rather large diversity still exists in terms of organization and size of pig units and their integration with the rest of the farm. Specialized pig farms represent 39% of all pig farms and they raise about 61% of all pigs, whereas in 38% of farms the raising of pigs is associated with ruminants. Diversity of pork products is mainly obtained by the sorting of carcasses and cuts, and their processing. Indeed, in France, about 75% of pork is consumed after processing, with a very large diversity of products. This contrasts with the rather low diversity of pork fresh meat. Nevertheless, in the recent years, we may observe the development of strategies of diversification based on the origin or the way of production. The differentiation levers may combine different dimensions among: animal breed, geographic origin, organoleptic and dietetic quality, the absence or the presence of specific compounds in animal feed, animal welfare, and organic production.
This evolution towards increased diversity is promoted by the consolidation of the links between pig producer cooperatives and the downstream of the pork production chain, including processing and distribution sectors.

https://www6.inra.fr/ciag/content/download/6490/47897/file/Vol68-7-Dourmad%20et%20al.pdf

2018

Filière porcine ukrainienne : Illusions perdues

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Baromètre Porc (FRA), 2018, n° 489, synthèse du mois, septembre, p. 8, par Boris Duflot

Avec son potentiel de productions végétales, ses faibles coûts de main d’oeuvre et une tradition de consommation de porc, l’Ukraine pouvait devenir un acteur majeur du commerce international. Mais la propagation de la peste porcine africaine empêche quasiment toute exportation, tandis que le marché intérieur s’est réduit depuis la crise politique et économique de 2014.

PDF icon Baromètre Porc (FRA), 2018, n° 489, synthèse du mois, septembre, p. 8, par Boris Duflot
2018

La Pologne sur un fil, entre potentiels et menaces ?

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Visuels d'intervention présentés par Elisa Husson et Boris Duflot, à Space 2018 (Les Matinales de l'Ifip), le 11-14 septembre 2018, Rennes

PDF icon Visuels d'Elisa Husson et Boris Duflot, Matinales au Space IFIP, le 11-14 sept 2018, Rennes
2018

Relationship between age and body weight at farrowing over 6 parities in Large White × Landrace sow

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Nathalie Quiniou, 69th Annual meeting of the european federation of animal science (EAAP), Dubrovnik, Croatie, 27-31 août 2018 

At the beginning of the gestation, parity and back fat (BT) thickness are frequently used by farmers to choose among different feeding plans the most adapted one to feed each sow if individual feeding is possible. Otherwise, BT is used to allocate the sows to one of the available pens and to adapt the feed allowance at the group level. Usually a single target of BT at farrowing is retained at the herd scale, and each sow is expected to make up its BT for the difference between the target and its own initial BT. According to the factorial approach used to assess nutrient requirements, achieving an expected BT gain implies that enough energy is supplied above maintenance. Based on equation published by Dourmad et al., expected energy retention is obtained by the difference between the initial (calculated from measured BT and BW) and the final amount of energy (calculated from expected BT and BW).
When no information is collected on BW during the gestation, the expected final BW is also used to assess daily BW and corresponding maintenance requirement and to take into account impacts of housing conditions (temperature, activity level). Then, adequacy of the energy supply depends not only on initial and final BT, but also on initial BW and final BW. Individual BW have been collected over successive parities in the IFIP facilities (n=6,288 from Large White × Landrace sows born since 2000). Data of 90 sows born between 2012 and 2015, studied over at least 6 parities and group-housed from the 28th to the 108th day of gestation, were used to characterize the relationship between age and BW after farrowing based on BW at the first farrowing (BW_P1) and BW gain afterwards, with BW at the 6th parity considered as the mature BW: BWi(Age), kg = 145.6 + 0.171 × Age_P1i+ 111.4 × (1 – exp(- 1.453/1000 × (Age-Age_P1i)1.084)), RMSEP=16 kg; with Age_P1i: the individual age at the first farrowing used to adjust the mean BW_P1. Based on this equation, the individual expected BW gain (both growth and recovering parts) can be calculated and, combined with BT gain, used to assess the corresponding energy requirement for precision feeding during gestation. Its calibration for other lines or farms will require specific measurements due to interactions with management.

PDF icon Nathalie Quiniou, 69th EAAP, Dubrovnik, Croatie, 27-31 août 2018
2018

Chemical and nutritional value of organic feedstuffs: A need to address in monogastric feeding

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A. Roinsard et al., 68th Annual meeting of the european federation of animal science (EAAP), Dubrovnik, Croatie, 27-31 août 2018

As it is mandatory since January 2019 to feed organic pigs and poultry with 100% organic feeds in the EU, a better knowledge of the nutritional value of organic raw materials is, more than ever, a key for farmers to develop efficient nutrition systems for organic livestock farming. Studies are being conducted in the French CASDAR programme SECALIBIO to compare organic raw materials to conventional ones, to establish the composition and nutritional value of organic feeds, and to evaluate their variability. A database of 6,577 samples of 94 organic raw materials, most of them commonly used in monogastric feeding (soybean meals, maize, faba bean, etc.), was constituted using data from the French Feed Database of the AFZ, from previous research programmes and from feed companies participating in SECALIBIO. In vivo digestibility trials on pigs and poultry were conducted to evaluate the specificities of organic raw materials and provide new data (for forage peas for example). The variability of organic raw materials was generally comparable to that of conventional ones. However, the fat content of organic sunflower (6.2 to 25.2% MS) and soybean (5.37 to 22.6% MS) meals varied a lot due to processing technologies, and it was suggested to delineate categories with consistent crude protein and fibre content. In connection with it, for poultry, the digestibility of protein could vary a lot for sunflower (76.5-83.0%) and soybean (74.4-87.32%) meals.
Organic soybean meals was reported to have a lower lysine/crude protein ratio than the conventional one (5.75 vs 6.14%): further investigations will determine the impact of this difference on feed formulation. The first practical result of this study will be the creation of specific tables of composition and nutritional value of organic feeds for pigs and poultry which represents a key for farmers to develop an efficient nutrition system in organic farming.

Document réservé Espace Pro, veuillez vous identifier
2018

Relationship between age and body weight at farrowing over 6 parities in Large White × Landrace sow

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Nathalie Quiniou, 69th Annual meeting of the european federation of animal science (EAAP), Dubrovnik, Croatie, 27-31 août 2018 

At the beginning of the gestation, parity and back fat (BT) thickness are frequently used by farmers to choose among different feeding plans the most adapted one to feed each sow if individual feeding is possible. Otherwise, BT is used to allocate the sows to one of the available pens and to adapt the feed allowance at the group level. Usually a single target of BT at farrowing is retained at the herd scale, and each sow is expected to make up its BT for the difference between the target and its own initial BT. According to the factorial approach used to assess nutrient requirements, achieving an expected BT gain implies that enough energy is supplied above maintenance. Based on equation published by Dourmad et al., expected energy retention is obtained by the difference between the initial (calculated from measured BT and BW) and the final amount of energy (calculated from expected BT and BW).
When no information is collected on BW during the gestation, the expected final BW is also used to assess daily BW and corresponding maintenance requirement and to take into account impacts of housing conditions (temperature, activity level). Then, adequacy of the energy supply depends not only on initial and final BT, but also on initial BW and final BW. Individual BW have been collected over successive parities in the IFIP facilities (n=6,288 from Large White × Landrace sows born since 2000). Data of 90 sows born between 2012 and 2015, studied over at least 6 parities and group-housed from the 28th to the 108th day of gestation, were used to characterize the relationship between age and BW after farrowing based on BW at the first farrowing (BW_P1) and BW gain afterwards, with BW at the 6th parity considered as the mature BW: BWi(Age), kg = 145.6 + 0.171 × Age_P1i+ 111.4 × (1 – exp(- 1.453/1000 × (Age-Age_P1i)1.084)), RMSEP=16 kg; with Age_P1i: the individual age at the first farrowing used to adjust the mean BW_P1. Based on this equation, the individual expected BW gain (both growth and recovering parts) can be calculated and, combined with BT gain, used to assess the corresponding energy requirement for precision feeding during gestation. Its calibration for other lines or farms will require specific measurements due to interactions with management.

PDF icon Nathalie Quiniou, 69th EAAP, Dubrovnik, Croatie, 27-31 août 2018, visuels
2018

Precision feeding with a decision support tool dealing with daily and individual pigs’ body weight

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Nathalie Quiniou (IFIP) Michel Marcon (IFIP) et Ludovic Brossard (INRA), 69h Annual meeting of the european federation of animal science (EAAP), Dubrovnik, Croatie, 27-31 août 2018 

Nutritionists, feed companies and equipment manufacturers look for solutions that help farmers to improve sustainability of pig production. Based on experimental results obtained in silico or in vivo, a better adequacy between amino acid supplies and requirements increases feed efficiency and farmer’s income and reduces the environmental impact of growing pigs, highlighting the interest for precision feeding. Data are collected to characterize daily animal traits (e.g. body weight, BW) and their variation from one day to another (e.g. growth rate, &‘6;BW). They are used to determine the requirement for maintenance and growth on the next day, respectively. Therefore, adequacy between requirements and supplies depends on these predicted BW and &‘6;BW. The double exponential smoothing (Holt-Winters) method with a smoothing parameter &”5;=0.6 (HW0.6), presents a low sensitivity to the number of latest values used to forecast BW. It seems to allow for a secured prediction of BW soon after the beginning of the growing phase (at least after 4 days). A group of pigs was used in restricted feeding conditions to compare results obtained either with a 2-phase feeding strategy, considered as the control treatment, or a precision feeding strategy based on BW forecasting with the HW0.6 method. Pigs allocated to both treatments were group-housed in the same pen, equipped with the decision support system built in the Feed-a-Gene project to manage the data, to determine in real-time the corresponding nutritional requirements, and to adapt the feed characteristics provided to each pig through the blend of two diets (9.75 MJ net energy/kg, 0.5 or 1.0 g of digestible lysine per MJ). Available results from 24 pigs per treatment indicate that overall average growth performance were not influenced by the feeding strategy (P>0.58 for both average daily gain and feed conversion ratio) but digestible lysine intake was reduced by 6% (1,774 vs 1,879 g, P<0.01) and N output by 7% (P<0.01) with precision feeding. Results will be completed by a second group using the same treatments. This study is part of the Feed-a-Gene project and received funding from the European Union’s H2020 program under grant agreement no. 633531.

PDF icon Nathalie Quiniou et al., 69th EAAP, Dubrovnik, Croatie, 27-31 août 2018
2018

Evaluation of micropollutants and chemical residues in organic and conventional pig meat

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G Dervilly-Pinel (ONIRIS) et al., 69h Annual meeting of the european federation of animal science (EAAP), Dubrovnik, Croatie, 27-31 août 2018

Even if there is no clear evidence that organic food products are healthier than conventional ones, the presumed absence of chemical contaminants is reported as main driver for organic consumers.. To provide occurrence data in a context of chronic exposure, samples of liver and meat (psoas major muscle) were collected in 2014 in six French slaughterhouses representing 70 pig farms, including 30 organic, 12 Label Rouge and 28 conventional. Each sample corresponded to a pool of tissues of three carcasses. Environmental contaminants (17 polychlorinated dibenzodioxins/ dibenzofurans (Dioxins), 18 polychlorinated biphenyls (PCBs), 3 hexabromocyclododecane (HBCD) isomers, 6 mycotoxins, 6 trace metal elements) and residues from production inputs (75 antimicrobials and 121 pesticides) were investigated using the most sensitive methods. Contamination levels were measured below regulatory limits in all the samples. However, some differences were observed between types of farming. Dioxins, PCBs and HBCD concentrations were thus observed as significantly higher in organic meat samples. Cu, Zn and As were measured at slightly higher levels in organic meat without differences between organic and Label Rouge. Liver samples from conventional and Label Rouge farms exhibited higher contents in Zn and Cd than the organic ones. Ochratoxin A was the only mycotoxin quantified in 25 samples (36%) and detected in another 22 samples (31%) of the livers analysed, without significant differences between farming systems. A correlation could be observed between mycotoxins concentrations in meat and liver. All meat samples exhibited pesticides levels below the detection limits, whereas only 3 conventional or organic samples (overall: 3.5%) displayed residual concentrations of authorized veterinary antimicrobials, but with concentrations far below the regulatory limits.

Document réservé Espace Pro, veuillez vous identifier
2018

Description and consequences of variability in sows and piglets

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Nathalie Quiniou et al., 69th Annual meeting of the european federation of animal science (EAAP), Dubrovnik, Croatie, 27-31 août 2018

Even though animals are from the same genetic line, farmers have to cope with variability both in sows and piglets.
In sows, variability is observed in traits such as parity, prolificacy, appetite, body weight (BW) and back fat thickness (BF). For instance, at the beginning of gestation, variability in body condition among sows can be high due to parity and age. In addition, at a given age, variability in litter size, milk potential, and appetite results in different nutrient requirements and consequently in variability of changes in maternal body reserves. Variability in BF can be a problem as several studies have indicated that too high or too low BF values are to be avoided at farrowing as well as at weaning. In both cases, the longevity of the sow is impaired, and farmers are advised to manage the sows toward a target BF depending on the physiological stage, associated with an age-dependant BW, increasing with age up to mature BW. In addition, variation in sow’s body condition at farrowing and in prolificacy influences the new born and weaning piglet traits. Compared to less prolific sows, high-prolific sows farrow more piglets, which are both lighter on average and more heterogeneous. Compared to normal birthweight piglets, the survival rate of low birth weight piglets is lower. Providing additional care around birth helps these piglets to survive, but subsequent housing and feeding management have to be adapted to deal with the variability in their growth potential. Nutritional strategies (based on modelling approaches that take into account criteria that influence requirements) are suggested to optimise the expression of the animals’ potential, but most often without an intention to reduce inter-individual variability in growth performance. In order to control or reduce variability, other solutions have been evaluated in experimental studies that focus on the level and the dynamic of the feeding plan and the quality of the diet. The challenge is now to validate these solutions in production units, which will be more or less easy depending on the existing housing and feeding systems, and the economic, welfare and environmental context.

PDF icon Nathalie Quiniou et al., 69th EAAP, Dubrovnik, Croatie, 27-31 août 2018
2018

ECOALIM : améliorer les bilans environnementaux des élevages en optimisant leurs ressources alimentaires

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Visuels d'intervention de Sandrine Espagnol, Journée "CASDAR" du 17 janvier 2018

PDF icon Visuels d'intervention de Sandrine Espagnol, Journée "CASDAR" du 17 janvier 2018
2018

Qualité de la viande de porc

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Jacques Mourot (INRA) et al., In: Valérie Berthelot, dir., Valérie Berthelot, Alimentation des animaux et qualité de leurs produits (p. 172-190). Paris, Lavoisier Tec & Doc. 442 pages

Les produits animaux occupent une place importante dans notre régime alimentaire en apportant des nutriments indispensables à notre équilibre physiologique. Au-delà de cette qualité nutritionnelle, ils doivent aussi répondre à des objectifs de qualité sanitaire, sensorielle et de service ainsi qu’aux attentes des consommateurs. L’objectif de cet ouvrage est de faire la synthèse des connaissances scientifiques sur les relations entre ces différentes qualités et l’alimentation des animaux. La formulation des régimes alimentaires a évolué pour assurer une qualité optimale des produits issus des élevages tout en satisfaisant au mieux les besoins des animaux. Après un chapitre introductif sur la notion de qualité et son sens actuel, Alimentation des animaux et qualité de leurs produits aborde en 13 chapitres les thématiques suivantes :

• Alimentation animale, formulation des régimes et réglementation

• Déterminants alimentaires et non alimentaires en élevage de la qualité des produits

• Qualité des produits animaux et attente des consommateurs : intégration du volet alimentation et mise en œuvre par les acteurs des filières

2018

Classification of trace elements in tissues from organic and conventional French pig production

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Julien Parinet et al., Meat Science, 2018, volume 141, juillet, p. 28-35

This study assesses the impact of the farming system on the levels of copper, zinc, arseniccadmium, lead and mercury in pig tissues from three types of production (Organic (n = 28), Label Rouge (n = 12) and Conventional (n = 30)) randomly sampled in different slaughterhouses. All the concentrations were below regulatory limits. In muscles, Cu, Zn and As were measured at slightly higher levels in organic samples but no differences between organic and Label Rouge was observed. Livers from conventional and Label Rouge pig farms exhibited higher Zn and Cd contents than the organic ones, probably due to different practice in zinc or phytase supplementation of fattening diets. Principal component analysis indicated a correlation between Cu and As concentrations in liver and carcass weight, and between Zn and Cd liver levels and lean meat percentage. The linear discriminant analysis succeeded in predicting the farming process on the basis of the lean meat percentage and the liver Cd level.

2018

Dynamique des repas lors du sevrage du porcelet

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Eric Royer, bilan 2017, éditions IFIP, mai 2018, p. 107

Le sevrage entraîne un arrêt transitoire de la consommation alimentaire du porcelet, conduisant à une perte de poids de 100 à 250 g dès le jour du sevrage. Chez certains porcelets, cette période peut être suivie par une brutale surcharge alimentaire favorisant les pathologies digestives. Aussi, des stratégies sont envisagées pour initier l’ingestion chez les porcelets non-mangeurs ou pour réguler l’appétit des gros mangeurs.
Trois essais dans la station de Villefranche-de-Rouergue ont testé si une alimentation fractionnée (repas en auges longues), combinée ou non à une restriction alimentaire ou à une limitation du mélange des portées, pouvait influencer favorablement le comportement alimentaire et la santé digestive des porcelets, dans un contexte de pathologies digestives dont la maladie de l’oedème.

PDF icon Eric Royer, bilan 2017, éditions IFIP, mai 2018, p. 107, fiche n° 64
2018

Réduction du taux de protéines des aliments : évolution des recommandations nutritionnelles

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Didier Gaudré et Laurent Alibert, bilan 2017, éditions IFIP, mai 2018, p. 110

La réduction du taux de protéines des aliments d’engraissement est observée depuis plusieurs années (cf Note de conjoncture IFIP). Des taux de 14 % en aliment croissance et de 13 % en aliment finition sont désormais régulièrement atteints. Dans ce contexte, la recherche de la teneur optimale en acides aminés permettant de satisfaire les besoins des animaux et d’exploiter les possibilités de réduction du taux de protéines des aliments est importante.
Afin de proposer des éléments de repère, cette étude compare les effets de la variation de la teneur en protéines (16 vs 14 % en croissance et 15 vs 13 % en finition) et du ratio lysine/énergie (0,90 vs 0,84 g/MJ EN en croissance et 0,80 vs 0,70 en finition) de l’aliment sur les performances, la qualité de carcasse et l’excrétion azotée des porcs.

PDF icon Didier Gaudré, bilan 2017, éditions IFIP, mai 2018, p. 110, fiche n° 67
2018

Dosage de l’hémoglobine pour évaluer l’anémie du porcelet au sevrage

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Eric Royer, bilan 2017, éditions IFIP, mai 2018, p. 108

Le sevrage des porcelets entraîne un bilan nutritionnel négatif pouvant conduire à l’anémie. Un essai a permis d’évaluer l’état de l’anémie après le sevrage et les effets d’une supplémentation nutritionnelle.

PDF icon Eric Royer, bilan 2017, éditions IFIP, mai 2018, p. 108, fiche n° 65
2018

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