La base documentaire de l'IFIP

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

Résultats 321 à 340 de 1891 résultats
Rechercher une documentation
Publication Annéetrier par ordre croissant

Accumulation of -hexabromocyclododecane ( -HBCDD) in muscles of fast- and slow-growing broiler

Consulter le resumé

Catherine Jondreville et al., XVIIth European Symposium on the Quality of Eggs and EGG Products, XXIIIth European Symposium on the Quality of Poultry Meat, 3-5 septembre 2017, Edimbourgh, Ecosse, abstract

Hexabromocyclodecane (HBCDD is a brominated flame retard included in some insulating materials used in livestock buildings, which has been detected in meat. The aim of the current study is to investigate the of this lipohilic contaminant in fast- (FG) and slow-growing (SG) broilers. First, an experiment involving FG and SG broilers exposed to HBCDD through feed during 42 and 82 days, respectiively, showed that breast muscle (BM, Pectoralis major) is similary concentrated in HBCDD in the two strains, while leg muscles (LM, thigh + drumstick including intermusclar fat) was 5 and 10 times more concentrated than BM in FG and SG broilers, respectively. Second, a physiogically based pharmacokinetic model was developed and validated using the previous data.
Different compartments (total and lipid weights) were represented : plasma, liver, BM  and LM, adipose tissue and the rest of the animal. After ingested HBCDD was absorbed and one part was eliminated by hepatic metabolism, it was distributed to tissues by the plasma, through a partition coefficient defined as the ratio between their respective neutral lipid concentrations. The model, calibrated for different strains and sex, will be used to assess the risk of meat contamination by HBCDD in different chicken production systems.

Document réservé Espace Pro, veuillez vous identifier
2017

NIR and VIS-NIR spectroscopy to predict PSE-LIKE zones of ham

Consulter le resumé

Antoine Vautier et al., 63e International Congress of Meat Science and Technology, Cork, Irlande, 13-18 août 2017

The aim of the study was to evaluate NitFom´s ability to predict PSE-like zones, a muscle structure defect in ham, which at present can only be detected by visual inspection after deboning. NitFom is an on-line fast device based on NIR spectroscopy dedicated to the meat industry. In comparison with the Vis-NIR Labspec4 spectrometer, the overall misclassification level of the NitFom is higher (13.0% vs 26.1%). However, misclassification of deboned ham deeply affected by PSE-like zones is lower for both devices (25% of false positives for NitFom). This level of accuracy could be satisfactory and useful for the meat industry, considering that the use of NitFom allow sorting of bone-in hams. The NitFom accuracy for PSE-like zone classification might be improved by expanding the range of spectrum analyzed by adding the visible wavelengths.

PDF icon Antoine Vautier et al., 63e ICOMST, Cork, Irlande, 13-18 août 2017
2017

Estimation by vision of pork cuts composition for sex and halothane genotype subpopulations

Consulter le resumé

Gérard Daumas et Mathieu Monziols, 63e International Congress of Meat Science and Technology, Cork, Irlande, 13-18 août 2017, p. 52-53

This work aims to quantify the systematic deviations for sex and halothane genotype subpopulations in the estimation by automatic vision of pork cuts composition. A sample of 208 carcasses, startified according to sex (50% castrated males and 50% females), was measured on line by the classification method CSB Image-Meater® (IM). An ear sample was analysed for halothane gene (Hal). The left sides were cut according to the EU procedure and the four main cuts were CT scanned  in order to determine the lean meat percentage (LMP) in each cut. These LMPs were regressed on six IM potential predictors and the carcass weight. For each equation were calculated the systematic deviations per level of the sex and Hal factors by mean difference between predicted and observed values. The absolute deviation per sexual types was the lowest (0.5%) in ham and the highest (1.4%) in belly. The deviations per Hal genotype ranged from 0.3% in shoulder to 0.8% in belly. In all models females and Hal heterozygotes were underestimated and vice-versa. The deviations per Hal genotype were about the half than per sex. The deviations per sex could be removed by at least a different intercept in the prediction equations.

PDF icon Gérard Daumas et Mathieu Monziols, 63e ICOMST, Cork, Irlande, 13-18 août 2017, p.
2017

Vision versus reflectance technology for deviations for sex and halothane genotype in pig carcass classification

Consulter le resumé

Gérard Daumas et al. 63e International Congress of Meat Science and Technology, Cork, Irlande, 13-18 août 2017, p. 50-51

This work aims to compare the systematic deviations for sex and halothane genotype subpopulations between pig classification methods by automatic vision and semi-automatic relfectance. A sample of 209 carcasses, stratified according to sex (50% castrated males and 50% females), was measured by CSB Image-Meater® (IM) and CGM. An car sample was analysed for halothane gene (Hal). The left sides were cut according to the EU procedure and the four main cuts were weighed and scanned by X-ray tomography in order to detemrine lean meat percentage (LMP). For each device the LMP was regressed on the fat and muscle depths included in the official equations. For each equation were calculated the systematic deviations per level of the sex and Hal factors by mean difference between predicted and observed values. The LMP overestimation for castrated males increased from 0.4% with CGM to 0.7% with IM. The LMP overestimation for non-sensitive homosygotes Hal, not significant with CGM, rose to 0.5%. Systematic deviations for sexual types could be cancelled at least by a differentiated offset in the prediction equation.

PDF icon Gérard Daumas et al. 63e ICOMST, Cork, Irlande, 13-18 août 2017, p. 50-51
2017

Conséquences de l’automatisation du classement des carcasses sur les écarts entre types sexuels et génotypes halothane

Consulter le resumé

Gérard Daumas et  al., 49es Journées de la Recherche Porcine, Paris, 31 janvier et 1er février 2017, poster

L’automatisation du classement des carcasses à la mi-2013 s’est accompagnée d’un changement de localisation des épaisseurs mesurées.
Les épaisseurs mesurées sur le dos, latéralement à la fente, ont laissé place à des épaisseurs mesurées à la jonction jambon-longe, sur la fente.
Les écarts entre sous-populations, dont la connaissance est d’un grand intérêt dans la fi lière, ont donc été modifi és. L’objectif de ce travail était de quantifier, pour les méthodes de classement CGM et CSB Image-Meater® (I-M), ces écarts entre types sexuels et génotypes halothane, facteurs connus pour leur importance sur la composition corporelle.

PDF icon Gérard Daumas et al., 49es JRP, Paris, 31 janvier et 1er février 2017, poster
2017

NIR and Vis-NIR spectroscopy to predict PSE-like zones of ham

Consulter le resumé

Antoine Vautier et al., 63e International Congress of Meat Science and Technology, Cork, Irlande, 13-18 août 2017, poster

PSE-like zones are still a major concern for the meat processing industry. This structure defect of the ham is known to increase slicing losses of the phosphate-free “Jambon Cuit Supérieur” processing. PSE-like zones are difficult to detect before deboning due to their localization on the inside surface of the ham. Near Infra-Red Spectroscopy (NIRS) devices such as Labspec4® can be considered as alternative techniques to human subjective grading, but measurements must be conducted on deboned hams. The NitFom™ (Frontmatec) is a NIR based measuring device dedicated to on-line measurements at high speed on hot or cold carcasses by invasive probing. The objective of the study was to evaluate the accuracy of PSE-like zone classification using NitFom™ on bone-in hams and to compare its prediction quality with the previously tested Labspec4® on deboned hams.

PDF icon Antoine Vautier et al., 63e ICOMST, Cork, Irlande, 13-18 août 2017, poster
2017

Vision versus reflectance technology for deviations for sex and halothane genotypes in pig carcass classification

Consulter le resumé

Gérard Dumas et Mathieu Monziols, 63e International Congress of Meat Science and Technology, Cork, Irlande, 13-18 août 2017, poster

Automation of pig carcass classification entailed a change in the location of the measured variables. Since mid-2013 in France the thicknesses measured on the back, laterally to the splitline, were replaced by thicknesses measured at the ham-loin junction on the splitline. Systematic deviations by sub-population, whose knowledge is of great interest in the chain, have thus been modified. The objective of this work was to quantify the systematic deviations related to sex and halothane genotype factors for CGM and CSB Image-Meater® classification methods, well known for their effects on carcass composition.

PDF icon Gérard Dumas et Mathieu Monziols, 63e ICOMST, Irlande, 13-18 août 2017, pos
2017

Prediction of drip loss and ultimate pH in pork Semimembranosus by the NitFom™

Consulter le resumé

Antoine Vautier et al., 63e International Congress of Meat Science and Technology, Cork, Irlande, 13-18 août 2017, poster

A majority of studies dealing with Near InfraRed Spectroscopy (NIRS) prediction of meat quality are focusing on its chemical composition, but the ability of NIRS to predict technological quality of meat has been the subject of many recent publications. This technology gives a quick access to spectral pattern that can also be linked to the water holding capacity of meat. However, very few NIRS devices are suitable for industrial implementation. In this study, a feasibility test was carried out to evaluate the possibility of predicting drip loss and ultimate pH in pork Semimembranosus using the NitFom™, a NIRS-based handheld invasive probe suitable for rapid on line measurements in pork carcasses immediately after slaughter.

PDF icon Antoine Vautier et al., 63e ICOMST, Cork, Irlande, 13-18 août 2017, poster
2017

In vitro characterization of the ability of Yersinia enterocolitica BT4 to colonize pigs and stainless steel surfaces

Consulter le resumé

Pierre Raymond et al., 12th SAFEPORK, 21-24 août 2017, Foz do Iguassu, Brésil, poster

Y. enterocolitica is the third bacterial cause of human enteritis in Europe (1). The biotype 4 (BT4) is the biotype the most frequently isolated from both pigs and clinical yersiniosis (2, 3). The ability of BT4 strains to infect humans may depend on their capability to colonize pigs and to develop biofilm on conventional materials used in food industries.
This study investigated the use of two in vitro tests to assess the ability of BT4 strains, to adhere and invade intestinal pig cells (IPEC-J2) and to adhere to stainless steel surfaces.

Document réservé Espace Pro, veuillez vous identifier
2017

Vision versus reflectance technology to estimate pork cuts composition

Consulter le resumé

Gérard Dumas et Mathieu Monziols, 63e International Congress of Meat Science and Technology, Cork, Irlande, 13-18 août 2017, poster

Sorting meat cuts is an ongoing challenge. Many pork plants use weighing and carcass grading information for pre-sorting. Automation of pig carcass classification entailed a change in the location of the measured variables. Since mid-2013 in France the thicknesses measured by reflectance (CGM) on the back, laterally to the splitline, were replaced by thicknesses measured by vision (CSB Image-Meater®) at the ham-loin junction on the splitline. The objective of this work was to compare the precision of these two classification methods to predict the proportion of muscle in the main cuts.

PDF icon Gérard Dumas et Mathieu Monziols, 63e ICOMST, Cork, Irlande, 13-18 août 2017
2017

Nutritional values of 11 pork secondary meat-cuts and liver

Consulter le resumé

Martine Carlier et al., 63e International Congress of Meat Science and Technology, Cork, Irlande, 13-18 août 2017, poster

Nutritional analysis for nutritional labelling has been carried out on 11 meat-cuts and liver from pigs commonly produced in France. Meat-cuts have been prepared in slaughterhouses for their use in processed meat preparations or products.

PDF icon Martine Carlier et al., 63e ICOMST, Cork, Irlande, 13-18 août 2017, poster
2017

Consequences of the future EU regulation on pig carcass classification

Consulter le resumé

Gérard Dumas et Mathieu Monziols, 63e International Congress of Meat Science and Technology, Cork, Irlande, 13-18 août 2017, poster

A new EU regulation on classification of beef, pig and sheep carcasses was published in July 2017 and shall apply from 11 July 2018.

For pig carcasses the reference of lean meat percentage, based on partial dissection (LMPPD) since 2006, will be replaced by a lean meat percentage based on total dissection (LMPTD). Manual total dissection can be replaced by CT virtual dissection of half carcasses if adjusted.

Sample should be stratified, but the minimal size would be 10 carcasses. The aim of this paper is to assess the main consequences of this future EU regulation on pig carcass classification.

PDF icon Gérard Daumas et Mathieu Monziols, 63e ICOMST, Cork, Irlande, 13-18 août 2017
2017

Pork cuts composition measured by scanner as infl uenced by sex and halothane genotype

Consulter le resumé

Gérard Dumas et Mathieu Monziols, 63e International Congress of Meat Science and Technology, Cork, Irlande, 13-18 août 2017, poster

Knowledge of the main factors infl uencing the cuts composition can help both sorting cuts and designing composition experiments. Sex and
halothane gene, well known for their effects on carcass composition, also deserve to be studied on cuts. The aim of this work is to study the sex
and halothane gene effects on the proportions of tissues in the four main pork cuts: ham, shoulder, loin and belly. Composition was determined by
scanner, a modern technique, which has recently been intensively studied in the COST action FAIM (Farm Animal Imaging).

PDF icon Gérard Dumas et Mathieu Monziols, 63e ICOMST, Cork, Irlande, 13-18 août 2017, pos
2017

Estimation by vision of pork cuts composition for sex and halothane genotype subpopulations

Consulter le resumé

Gérard Dumas et Mathieu Monziols, 63e International Congress of Meat Science and Technology, Cork, Irlande, 13-18 août 2017, poster

The meat industry is interested in the prediction of the cut yields in order to drive the cutting as effi ciently as possible. These yields can be predicted
with the variables used in the compulsory task of carcass weighing and grading. Nevertheless, the factors having an effect on carcass grading could
have a different effect on the cut grading, specifi c to each cut. This work aims to quantify the systematic deviations for sex and halothane genotype
subpopulations in the estimation of pork cuts composition by the automatic vision system called CSB Image-Meater® .

PDF icon Gérard Dumas et Mathieu Monziols, 63e ICOMST, Cork, Irlande, 13-18 août 2017, pos
2017

Sponge vs excision technique for carcass sampling of beef, lamb and pig - Influence on process hygiene criteria and monitoring

Consulter le resumé

Brice Minvielle et al., 63e International Congress of Meat Science and Technology, Cork, Irlande, 13-18 août 2017, poster

According to EU regulations meat operators must comply with process hygiene criteria, specifi ed for carcasses in terms of daily mean log cfu/cm²
of Aerobic colony count (ACC) and Enterobacteriaceae (ENT). These limits shall apply only to carcass sampled by excision, but other sampling
methods may be used if it can be demonstrated to the satisfaction of the competent authority that it provides at least equivalent guarantees.
The present study was undertaken to evaluate for beef, sheep and pig carcasses (i) the effectiveness of two types of sponge swabbing for the
enumeration of ACC and ENT in comparison to excision sampling, (ii) the consequences on the evaluation of process hygiene counts and the
determination of alternative microbial limits, and (iii) the impact of the change of method on the hygiene monitoring of the slaughtering process.

PDF icon Brice Minvielle, 63e ICOMST, Cork, Irlande, 13-18 août, poster
2017

Présentation du projet ACCEPT et des résultats du sondage d’opinion et de la typologie des points de vue de la société sur l’élevage en France

Consulter le resumé

« Mieux comprendre les points de vue de la société sur l'élevage ». Présentation du 25 janvier 2017.

- « Acceptabilité des élevages par la société en France : cartographie des controverses, mobilisations collectives et prospectives, par Christine Roguet (p. 1-5) ;

- « Comprendre les controverses sur l’élevage et connaître les acteurs du débat en France et en Europe, par Elsa Delanoue, (Université Rennes et ITAVI et Christine Roguet  (IFIP), p. 6-15) ;

- « Et le grand public ? : les regards de la société française sur l’élevage », par Alizée Chouteau, Elsa Delanoue, Anne-Charlotte Dockès, Aurore Philibert et Christophe Perrot (p. 16-35) :

-       Que nous apprennent de récentes : études quantitatives (p. 17-20)

-       Un sondage mené par le projet ACCEPT (p. 21-35)

PDF icon Présentation du projet ACCEPT et des résultats du sondage d’opinion et de la typologie des points de vue de la société sur l’éle
2017

Sensorial and bacterial evolution in vacuum-packed pork meat during long term storage

Consulter le resumé

Arnaud Bozec, Alain Le Roux et Carole Feurer, Microbial spoilers in food 28-30 juin 2017, Quimper, Paris, France, poster

Long term storage at low temperature is a challenge for the pig and pork industry in order to export in the Asian continent. This study aimed at investigating the evolution of the sensory quality and the bacterial flora dynamics of vacuum packed pork meat during a 12 weeks storage.

PDF icon Arnaud Bozec, Alain Le Roux et Carole Feurer, Microbial spoilers in food 28-30 juin 2017, Quimper, Paris, poster
2017

Les producteurs européens de porcs lourds en démarche qualité, sont-ils prêts à abandonner la castration ?

Consulter le resumé

Patrick Chevillon, Tech Porc (FRA), 2017, n° 36, juillet-août, p. 38-39

L’étude Castrum, financée par l’Union européenne, a fait le point sur la définition d’un porc lourd et a consulté les producteurs et les filières qualités engagés dans la production de porcs lourds sur leur opinion quant aux alternatives possibles à l’arrêt de la castration chirurgicale : production de mâles entiers ou vaccination Improvac.

PDF icon Patrick Chevillon, Tech Porc (FRA), 2017, n° 36, juillet-août, p. 38-39
2017

Encadrement technique de la station de phénotypage du Rheu

Consulter le resumé

Claire Hassenfratz, Bilan 2016, éditions IFIP, mai 2017, p. 110

A l’initiative de FG Porc, réunissant Axiom, Nucléus et l’IFIP, une nouvelle station de phénotypage a été bâtie en 2015.

La gestion quotidienne de la station a été confiée à l’INRA dans le cadre d’un accord de partenariat public-privé.

Ce projet s’inscrit dans un triple objectif complémentaire entre les professionnels de la sélection et la recherche:

1) disposer d’un maximum de mesures pertinentes pour les programmes d’amélioration génétique du futur ;

2) pouvoir développer des travaux de recherche appliquée de qualité adaptés aux enjeux de la filière porcine ;

3) assurer la mise en application de phénotypage et des résultats des travaux dans les programmes de sélection.

L’IFIP, en partenariat avec l’INRA, est missionné par le Ministère l’Agriculture pour assurer son encadrement technique.

Les informations recueillies sont complémentaires à celles recueillies par les OSP en élevages ou en stations privées sur la croissance, l’efficacité alimentaire, la carcasse et la qualité de viande.

La station est également le lieu privilégié pour tester de nouvelles mesures.

C’est pourquoi elle est équipée d’une chaîne de distribution d’aliment multiphase permettant d’adapter finement la composition de l’aliment aux besoins des animaux par case d’une part et d’autre part de mettre en place des comparaisons de régimes alimentaires.

Les DAC sont équipés de plateaux de pesée afin de suivre les cinétiques de croissance.

Le tomographe à rayon X de l’IFIP pourra être utilisé sur les porcs en cours de contrôle.

La station constitue ainsi un outil de collecte de données à visées génétiques dont les résultats concernent l’ensemble de la filière.

Compte tenu de l’intérêt collectif de ce projet, il a reçu le soutien financier des conseils régionaux de Basse Normandie,

Bretagne et Pays de la Loire, ainsi que de FranceAgrimer.

Depuis son ouverture en juillet 2015, jusque fin 2016, elle a été dédiée uniquement au contrôle des collatéraux à des fins d’évaluation et de recueil de références.

A l’avenir elle sera également un support expérimental dans le cadre de programmes de recherche.

L’ensemble des données collectées sont sauvegardées dans la base de données nationale génétique et sont accessibles aux équipes de recherche.

PDF icon Claire Hassenfratz, Bilan 2016, mai 2017, p. 110
2017

Modélisation générique du devenir dans la viande d’un contaminant chimique

Consulter le resumé

Eric Royer, Bilan 2016, éditions IFIP, mai 2017, p. 78

Dans le but d’évaluer le risque de contamination des produits animaux par des polluants organiques persistants, plusieurs modèles mathématiques ont déjà été développés.

Cependant, la plupart sont paramétrés spécifiquement pour un polluant et une espèce animale précise, ce qui rend difficile leur utilisation professionnelle en situation concrète, par exemple lors d’un cas de contamination.

Le projet Braviporc a permis de développer un modèle générique et permettant d’estimer la contamination des tissus animaux par les contaminants chimiques de type lipophile.

La molécule choisie pour ce travail, l’HBCD, est un retardateur de flamme ajouté dans certains polystyrènes utilisés comme isolants, y compris dans les bâtiments d’élevage.

Ce composé, qui est un perturbateur endocrinien, est retrouvé dans plusieurs produits alimentaires d’origine animale.

PDF icon Eric Royer, Bilan 2016, mai 2017, p. 78, fiche n° 41
2017

Pages