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Biopréservation et hautes pressions : des outils pour la maîtrise des dangers microbiologiques dans les aliments

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Hélène Simonin ( Univ. Bourgogne Franche-Comté, AgroSup Dijon) et al., IAA, revue des industries agro-alimentaires (FRA), 2019, mai-juin, 6 pages

L’utilisation d’additifs conservateurs est souvent nécessaire pour assurer la sécurité microbiologique des produits carnés réfrigérés faiblement acides. Le projet ANR BLac HP (2014-2019) a étudié une nouvelle stratégie de stabilisation des produits carnés réfrigérés pour assurer le contrôle des flores indésirables à la fois végétatives et sporulées. Grâce à une approche pluridisciplinaire, les travaux ont montré que la combinaison de la biopréservation par des bactéries lactiques et d’un traitement hautes pressions permettait d’assurer la qualité microbiologique de dés de jambon cuits à teneur réduite en nitrite pendant toute leur durée de vie. Le traitement permet de plus une qualité sensorielle optimale sans impact environnemental supplémentaire par rapport au procédé conventionnel. 

source  : http://www.revue-iaa.fr/revues/a-906/

2019

Early disease detection for weaned piglet based on live weight, feeding and drinking behaviour

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Michel Marcon et al., The European Conference on Precision Livestock Farming (ECPLF), 26-29 août 2019, Cork, Irlande, poster

Reduce antibiotic use is a major issue for pigs production because of World Health Organization recommendations and meat consumers concerns.
In order to reduce the needs of medication, one way is the early individual disease detection for isolate and treat only the sick animal. The subclinical
symptoms with the feeding and drinking behaviour can have a diagnostic value. A first automatic warning system has been built based on a statistic model who use data from automatic feeders, connected bowl drinker and connected scale.

PDF icon Michel Marcon et al., The European Conference on Precision Livestock Farming (ECPLF), 26-29 août 2019, Cork, Irlande, poster
2019
Couverture du Porc par les chiffres

Le porc par les chiffres 2019-2020

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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, 39 pages, 16 X 24

25,00 €
2019

Besoin et offre de financement des exploitations porcines : évaluation en 2019

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Visuels d'intervention présentés par Christine Roguet (Ifip) et Mickael Etheve (Blézat Consulting), Space 2019, 10-13 septembre 2019, Rennes (Matinales de l'Ifip), 37 pages

PDF icon Christine Roguet (Ifip) et Mickael Etheve (Blézat Consulting), Space 2019, 10-13 sept 2019, Rennes (Matinales), 37 pages
2019

Deux projets pour l’analyse technico-économique à intégrer dans la ToolBox

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Visuels d'intervention présentés par Alexia Aubry, Space 2019, 10-13 septembre 2019, Rennes (Matinales de l'Ifip), 6 pages

 

PDF icon Alexia Aubry, Space 2019, 10-13 septembre 2019, Rennes (Matinales de l'Ifip), 6 pages
2019

Development of a quantative PCR method coupled with PMA to quantify viable Salmonella spp. cells in the pork supply chain

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Sabine Jeuge et al., 13e SafePork, 26-29 août 2019, Berlin, Allemagne

In 2017, Salmonella spp. was implied in 30% of foodborne diseases in France (SPF, 2019). Few data on the contamination levels of Salmonella spp., are available along the pork supply chain. The protocol of the standard method (ISO/TS 6579-2:2012) is time-consuming and culture-based methods using chromogenic media are less efficient for matrices with high levels of back ground flora, and for recovering stressed cells. Along the food chain, the cells may be impacted by various stresses (e.g. chemical or thermal), which may lead to physiological changes and the emergence of viable but non-culturable cells (VBNCs).

PDF icon Sabine Jeuge et al., 13e SafePork, 26-29 août 2019, Berlin, Allemagne
2019

A Salmonella database to monitor and centralize regulatory own-checks results (CE) n° 2073/2005 obtained by slaugterhouse

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Sabine Itié-Hafez (Ministère de l'Agriculture) et Alain Le Roux (Ifip), 13e SafePork, 26-29 août 2019, Berlin, Allemagne, poster

Salmonellosis is a major cause of foodborne outbreaks caused by bacteria in Europe. In 2014, the European Commission reinforced the survey of this contaminant in the pig and pork industry by the competent authority. In this context, French General Directorate for Food required a new system to centralize regulatory own-checks results for Salmonella in pig carcasses.

Document réservé Espace Pro, veuillez vous identifier
2019

Impact of cleaning and disinfection procedures on microbial ecology and Salmonella antimicrobial resistance in a pig slaughterhouse

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Arnaud Bridier (Anses) et al., Scientific Reports, 2019, volume 9, n° 1, 10 septembre, 13 pages

To guarantee food safety, a better deciphering of ecology and adaptation strategies of bacterial pathogens such as Salmonella in food environments is crucial. The role of food processing conditions such as cleaning and disinfection procedures on antimicrobial resistance emergence should especially be investigated. In this work, the prevalence and antimicrobial resistance of Salmonella and the microbial ecology of associated surfaces communities were investigated in a pig slaughterhouse before and after cleaning and disinfection procedures. Salmonella were detected in 67% of samples and isolates characterization revealed the presence of 15 PFGE-patterns belonging to five serotypes: S.4,5,12:i:-, Rissen, Typhimurium, Infantis and Derby. Resistance to ampicillin, sulfamethoxazole, tetracycline and/or chloramphenicol was detected depending on serotypes. 16S rRNA-based bacterial diversity analyses showed that Salmonella surface associated communities were highly dominated by the Moraxellaceae family with a clear site-specific composition suggesting a persistent colonization of the pig slaughterhouse. Cleaning and disinfection procedures did not lead to a modification of Salmonella susceptibility to antimicrobials in this short-term study but they tended to significantly reduce bacterial diversity and favored some genera such as Rothia and Psychrobacter. Such data participate to the construction of a comprehensive view of Salmonella ecology and antimicrobial resistance emergence in food environments in relation with cleaning and disinfection procedures.

https://www.nature.com/articles/s41598-019-49464-8.pdf

2019

Alimentation durable et élevages porcins

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Visuels d'intervention par Sandrine Espagnol, Space 2019, 10-13 septembre 2019, Rennes (Matinales de l'Ifip), 5 pages

PDF icon Sandrine Espagnol, Space 2019, 10-13 septembre 2019, Rennes (Matinales de l'Ifip), 5 pages
2019

Impacts environnementaux des élevages porcins : quels déterminants et leviers d’action ?

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Visuels d'intervention présentés par Sandrine Espagnol, Space 2019, 10-13 septembre 2019, Rennes (Matinales de l'Ifip), 10 pages

 

PDF icon Sandrine Espagnol, Space 2019, 10-13 septembre 2019, Rennes (Matinales de l'Ifip), 10 pages
2019

Pourquoi PorcProtect ?

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Visuels d'intervention présentés par Isabelle Corrégé, Space 2019, 10-13 septembre 2019, Rennes (Matinales de l'Ifip), 10 pages

PDF icon Isabelle Corrégé, Space 2019, 10-13 septembre 2019, Rennes (Matinales de l'Ifip), 10 pages
2019

Auto-diagnostic de la biosécurité par l'éleveur

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Visuels d'intervention présentés par Anne Hémonic, Space 2019, 10-13 septembre 2019, Rennes (Matinales de l'Ifip), 14 pages

PDF icon Anne Hémonic, Space 2019, 10-13 septembre 2019, Rennes (Matinales de l'Ifip), 14 pages
2019

Toolbox des outils simples et pratiques

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Visuels d'intervention présentés par Michel Marcon et Johan Thomas, Space 2019, 10-13 septembre 2019, Rennes (Matinales de l'Ifip), 5 pages

PDF icon Michel Marcon et Johan Thomas, Space 2019, 10-13 septembre 2019, Rennes (Matinales de l'Ifip), 5 pages
2019

Modèle de prévision de la production porcine : à partir des données BDPORC

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Bérengère Lécuyer, Baromètre Porc (FRA), 2019, n° 500, septembre, synthèse du mois, p. 8

Les données BDPORC sur les mouvements de porcins ont été mobilisées pour modéliser et prédire la production de porcs charcutiers à un horizon de 1 à 5 mois. La part de la variabilité de la production de porcs charcutiers expliquée par le modèle est supérieure à 60 %. Les écarts entre la production réelle et la prévision sont sensibles pour certains mois mais plus réduits à l’échelle du trimestre.

PDF icon Bérengère Lécuyer, Baromètre Porc (FRA), 2019, n° 500, septembre, synthèse du mois, p. 8
2019

Réalité augmentée : un dispositif audio testé en maternité

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Alexia Aubry, Porc Mag (FRA), 2019, n° 545, septembre, p. 40

Des technologies innovantes peuvent aider les éleveurs à enregistrer plus efficacement les performances techniques de leurs porcs, indispensables au suivi et  l'évaluation de leurs résultats économiques.

2019

Toolbox de l'Ifip audite les bâtiments sur smartphone

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Michel Marcon, Réussir Porc/ Tech Porc (FRA), 2019, n° 271, septembre, p. 50-51

L’application Toolbox mise au point par l’Ifip propose quatre calculettes pour un auto-audit simple et rapide de la ventilation, du chauffage, des équipements et de la conduite.

PDF icon Michel Marcon, Réussir Porc/ Tech Porc (FRA), 2019, n° 271, septembre, p. 50-51
2019

Le led, l’éclairage économe en énergie

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Yvonnick Rousselière, Réussir Porc/Tech Porc (FRA), 2019, n° 271, septembre, p. 52-53

L’éclairage à leds gagne du terrain en production porcine, aussi bien en rénovation intérieure qu’en construction neuve.

PDF icon Yvonnick Rousselière, Réussir Porc/Tech Porc (FRA), 2019, n° 271, septembre, p. 52-53
2019

Use of mate allocation in pig crossbreeding schemes: a simulation study

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González-Diéguez D et al., 70th Annual meeting of the European Federation of Animal science (EAAP), 26-30 août 2019, Ghent, Belgique, visuels d'intervention

One of the main goals in a crossbreeding scheme is to improve the performance of crossbred population by exploiting heterosis and breed complementarity. Dominance is one of the likely genetic bases of heterosis and, nowadays, estimating dominance effects in genetic evaluations has become feasible in a genomic selection context. Mate allocation strategies that account for inbreeding and/or dominance can be of interest for maximizing the crossbred performance. The objective of this study was to simulate scenarios including or not mate allocation strategies in two-breed pig crossbreeding schemes. The different crossbreeding scenarios have been compared in terms of genetic gain (within-breed) and total genetic value in crossbred populations. The benchmark scenario is a crossbreeding scheme where within-line selection is performed on purebred genomic estimated breeding values and crossbreds come from random matings of the best purebreds. The other subsequent scenarios are conceived to evaluate the potential benefits of accounting for inbreeding, dominance and crossbred performances in the genetic evaluation model. Genomic mate allocation is a promising strategy to improve the crossbred performance.

Document réservé Espace Pro, veuillez vous identifier
2019

Digestive efficiency is a heritable trait to further improve feed efficiency in pigs

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Vanille Déru (INRA/ France Génétique Porc) et al., 70th Annual meeting of the European Federation of Animal science (EAAP), 26-30 août 2019, Ghent, Belgique, visuels d'intervention

The use of diets with dietary fibres from alternative feedstuffs less digestible for pigs is a solution considered to limit the impact of increased feed costs on pig production. This study aimed at determining the impact of an alternative diet with fibres on individual digestive efficiency coefficients, and to estimate their heritabilities and genetic correlations with other production traits. A total of 480 Large White pigs were fed a high fibre diet (FD) and 547 of their sibs were fed a conventional diet (CO). For each animal, digestibility coefficients (DC) of energy, organic matter, and nitrogen were predicted from faeces samples analysed with near infrared spectrophotometry.

Individual daily feed intake (DFI), average daily gain (ADG), feed conversion ratio (FCR) were recorded as well as lean mean percentage (LMP), carcass yield (CY) and meat quality traits. The FD pigs had significantly lower DC than CO pigs (-5 to 6 points). The DC were moderately to highly heritable, with heritabilities ranging from 0.41±0.14 to 0.50±0.15 in CO, and from 0.62±0.17 to 0.70±0.17 in FD. Genetic correlations between DC and ADG (from -0.65 to -0.52), FCR (from -0.75 to -0.33), and DFI (from -0.83 to -0.57) were high and negative in both diets. The DC were slightly unfavourably correlated with CY (from -0.24 to -0.11) and favourably correlated with LMP (from 0.03 to 0.29). Genetic correlations were generally unfavourable with meat quality traits (from -0.75 to 0.09). Genetic correlations of DC between diets were close to 1, so no interaction between feed and genetics could be evidenced for these traits. To conclude, DC measured in farm conditions are interesting criteria for selection to account for animal digestive capacity, due to moderate to high heritabilities and high genetic correlations with FCR.

However, according to these first results, it would have to be selected together with carcass yield and meat quality to avoid adverse genetic trends on the latter traits.

Document réservé Espace Pro, veuillez vous identifier
2019

Incidence of heating the liquid feed on performance of fattening pigs

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Eric Royer et al., 70th Annual meeting of the European Federation of Animal science (EAAP), 26-30 août 2019, Ghent, Belgique, visuels d'intervention

Pig farms producing their own renewable energy could improve animal health or performance by the controlled heating of liquid feed. This study evaluated the effects of different liquid feed temperature on performance of growing-finishing pigs. For the fattening period (27.5 to 112 kg), a total of 144 pigs received, according to plan, a growing then a finishing diet mixed with water in a ratio of 2.8:1 l/kg and distributed at 10, 20 or 30 °C. Pigs of each treatment were allocated to 8 pens of 6 animals each, spread throughout the liquid feeding facility and received 13 times per week a liquid feed distributed by an automated supply system. Environmental temperature was maintained at 24 °C during the whole period. After distribution, pigs fed the 30 °C meal ate faster than pigs delivered 20 or 10 °C meals. It was visually observed that the latter ones agitated the mixture before eating. From d 0 to 52, pigs receiving 30 °C meal had better ADG and FCR than pigs given the 20 °C meal, pigs of the 10 °C meal being intermediate (ADG: 773, 740 and 764 g/d, respectively; P=0.02; FCR: 2.58, 2.69 and 2.61 kg/kg, respectively; P=0.03). Performance was similar among treatments from d 52 to 100 (P>0.10). Overall from d 0 to 100, FCR of pigs distributed the 30 °C feed was 2.2% lower than pigs given the 20 °C or the 10 °C meals (2.69 vs 2.77 and 2.74 kg/kg, respectively; P=0.04). Live weight at d 100 was higher for pigs given 30 °C meal than for pigs fed at 20 °C, pigs with a 10 °C meal being intermediate (110.4, 108.7 and 109.6 kg, respectively; P=0.04). 30 °C pigs tended to have a higher back fat depth than 20 and 10 °C pigs (13.7 vs 12.8 and 13.0 mm, respectively; P=0.07). These results are in agreement with the amount of heat exchange energy required to raise a liquid feed to body temperature. An additional profit of 1.1 € per pig for heated meal vs temp/cold meal was calculated on the basis of the study technical results. Under the economic conditions of 2016, a 2.2% decrease of the FCR could amortize an investment in a renewable energy up to € 5,000 per year in the case of a fattening unit with capacity for 1,500 pigs.

PDF icon Eric Royer et al., 70th EAAP, 26-30 août 2019, Ghent, Belgique
2019

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