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The biotreatment of pig slurry by use of micro-algae in different lagoonings

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1998

The boar, reception, quarantine and training as critical factors in its productive life

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Boar reception in quarantine and training for semen collection are key periods before admission of boars in AI studs. On arrival, adaptation capacities are triggered by a large number of potential stressors : transportation, changes in housing and feeding management contacts with other boards and non-familiar.

Boar confidence is a key factor. It can be easily monitored on arrival, using simple behavourial evaluation.
2012

The effects of low salt concentrations on the mechanism of adhesion between two pieces of pork semimembranosus muscle following tumbling and cooking

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The aim of this research was to gain deeper insight into the effect of salt content on the adhesion between pieces of semimembranosus pork muscle bound by a tumbling exudate gel. Hydrophobic site number, free thiol and carbonyl content were measured in tumbling exudate and meat protein to evaluate the protein-protein interactions involved in the adhesion process. Proteins were far more oxidized in exudate than in meat, and under our experimental conditions, salt content increased protein bonding in the exudate but not in the meat. Breaking stress increased between non-salted meat and 0.8%-salted meat but did not depend on the protein physicochemical properties of the tumbling exudate. Modifying the meat surface by tumbling alone, tumbling and salting, or scarification had no effect on breaking stress. It is suggested that the break between the meat pieces occurred between the tumbling exudate and the meat surface due to weaker chemical bonds at this location.

2014

The effects of low salt concentrations on the mechanism of adhesion between two pieces of pork semimembranosus muscle following tumbling and cooking

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The aim of this research was to gain deeper insight into the effect of salt content on the adhesion between pieces of semimembranosus pork muscle bound by a tumbling exudate gel. Hydrophobic site number, free thiol and carbonyl content were measured in tumbling exudate and meat protein to evaluate the protein-protein interactions involved in the adhesion process. Proteins were far more oxidized in exudate than in meat, and under our experimental conditions, salt content increased protein bonding in the exudate but not in the meat. Breaking stress increased between non-salted meat and 0.8%-salted meat but did not depend on the protein physicochemical properties of the tumbling exudate. Modifying the meat surface by tumbling alone, tumbling and salting, or scarification had no effect on breaking stress. It is suggested that the break between the meat pieces occurred between the tumbling exudate and the meat surface due to weaker chemical bonds at this location.

2014

The French Agricultural LCA Platform

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The French Agricultural LCA Platform was created in 2009 under the impetus of the French technological network on Livestock and Environment* and aims to distribute management tools for animal production systems to improve their environmental performance.

The platform’s purpose is to share knowledge, data and methodological positions with a common database and thematic workshops.

Data are evaluated and rated with an expertise matrix we developed, to prepare them for modelling with SimaPro® LCA software.
PDF icon The French Agricultural LCA Platform
2012

The new pig carcass grading methods in France

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1998

The preventive role of feeding practices

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2013

Thé vert et vitamine E pour protéger les oméga 3 issus de lin

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Dans une démarche nutritionnelle d'enrichissement en oméga 3 de la viande de porc, il est essentiel que les oméga 3 parviennent jusqu'à l'assiette du consommateur. Une des stratégies pour protéger ces acides gras consiste à enrichir la ration par des antioxydants : l'extrait de thé vert et la vitamine E ont été testés dans cet essai.

PDF icon techporc_vautier_n5_2012.pdf
2012

The welfare of growing pigs in five different production systems: assessment of feeding and housing

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Ninety-one farms were visited over a 2-year period to assess the welfare of growing pigs in five different production systems found either in France or in Spain using the Welfare Quality® protocol. This study focused on animal-based measures as indicators of ‘good feeding’ and ‘good housing’. Multiple Generalized Linear Mixed Models were performed for each measure to evaluate the differences between production systems and to detect possible causal factors.
2012

Thermal imaging use for heat treatment qualification : the case of singeing

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Thierry Lhommeau et al., FAIM IV : fourth annual conference on body and carcass evaluation, meat quality software and treaceability, 22-23 septembre 2015, Edimbourg, écose, poster

Singeing is dedicated to improving the visual aspect and reducing surface bacterial contamination of pig carcasses. However more needs to be discovered about the variability of the surface temperatures reached after singeing within a production day and on the different parts of the carcasses. Thermal imaging is now widely developed. This study aimed at assessing if and how this technology could be used to study surface temperatures reached after singeing.

PDF icon Thierry Lhommeau et al., FAIM IV , Edimbourg, Ecosse, poster
2015

Thermal inactivation of infectious Hepatitis E virus in experimentally contaminated food

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Hepatitis E virus (HEV) infection of zoonotic origin is an emerging concern in industrialized countries. In the past few years, several cases of zoonotic hepatitis E have been identified and the consumption of food products derived from pork liver have been associated with clusters of human cases. More specifically, raw or undercooked pork products have been incriminated. Few data on the effect of heating on HEV inactivation in food products are available.
2012

Thèse sur la controverse autour de l’élevage

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Elsa Delanoue (IDELE) et Christine Roguet (IFIP), bilan 2017, éditions IFIP, mai 2018, p. 62

En parallèle et en étroit partenariat avec le projet Casdar ACCEPT, est réalisée depuis 2014 une thèse de sociologie sur la controverse autour de l’élevage en France. L’Ifip participe au co-encadrement de la thèse, avec le laboratoire ESO de l’Université Rennes 2, l’Itavi et l’Institut de l’Elevage.
La controverse sur l’élevage témoigne de l’existence au sein de la société française de différentes façons de penser l’élevage. L’objectif de la thèse est d’analyser cette controverse : Quels sens s’affrontent dans l’espace public concernant l’élevage, par qui sont-ils portés, et quelle forme la lutte entre les modes de pensée prend-t-elle ?

PDF icon Elsa Delanoue (IDELE) et Christine Roguet (IFIP), bilan 2017, éditions IFIP, mai 2018, p. 62, fiche n° 31
2018

Tolérance des porcs aux facteurs anti-trypsiques du soja

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Fiche n° 075 : facteurs de productivité des élevages

La valorisation du soja en alimentation animale n’est possible que lorsque les facteurs antinutritionnels ont été détruits par un traitement thermique.
Toutefois, la culture du soja à proximité de la production porcine explique des travaux (Etats-Unis, Allemagne, Italie) sur l’emploi de graines crues dans les aliments porcins.
Parallèlement, certaines variétés de soja dont la teneur en facteurs anti-trypsiques est diminuée environ de moitié pourraient permettre une utilisation directe ou un traitement thermique moins intense.
Alors que les travaux antérieurs fixaient souvent un taux maximum de graine crue dans les aliments, cette nouvelle étude vise à fixer une limite en unités de facteurs antitrypsiques (UTI/mg) et à évaluer l’intérêt de graines produites régionalement en Midi-Pyrénées.
Des variétés de soja à teneur en facteurs anti-trypsiques standard (Isidor et Ecudor) ou faible (Bahia) ont été cultivées par le Lycée de Moissac (82) et incorporées dans les aliments préparés dans la station d’expérimentation de Villefranche-de-Rouergue (12), à des taux allant de 2.5 à 12.5 %.

PDF icon fiche_bilan2014_075.pdf
2015

Tomographie RX : un outil pour optimiser le salage et séchage du jambon

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La mise au point d’un outil de mesure non destructif et rapide permettant de suivre les cinétiques de salage/séchage permettrait aux industriels d’évaluer en temps réel le comportement des jambons secs, réduisant ainsi les délais, risques et coûts liés aux modifications de process (durée de salage, conditions de séchage,…).
Le tomographe RX, qui permet de distinguer les différences de densité entre tissus, est susceptible de distinguer les variations physicochimiques causées par les flux de sel et d’eau au sein des produits.

PDF icon bilan_2012web_51.pdf
2013

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

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

Topical trends in the French pig carcass grading

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PDF icon Topical trends in the French pig carcass grading
2009

Tour du monde de la recherche porcine : les enjeux convergent !

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L'Ifip a récemment fait un point sur les travaux en matière de recherche porcine mondiale. Cela permet d'apprécier les questions d'actualité en regard de la compétitivité, des évolutions réglementaires ou encore de l'image de la filière porcine.
2011

Tourteau de colza

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2010

Towards a decision support tool with an individual-based model of a pig fattening unit

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Alice Cadéro et al., Computers and Electronics in Agriculture, 2018, volume 147, avril, p. 44-50

European pig production is encountering many economic and environmental challenges. To address these challenges, farmers need tools to assess the sustainability of their production systems and to make changes to ensure their sustainability. Decision support tools can help farmers to simulate and understand the influence of their management practices on production system performance. In a previous article, we described a dynamic pig fattening unit model that considers individual variability in pig performance, farmers’ practices and animal management and estimated environmental impacts (through Life Cycle Assessment) and economic results of the unit. This model is intended to be included in a decision support tool, which requires appropriate parameterisation for on-farm application and assessment to guarantee the quality of predictions. The objective of the present article is to develop a process to adequately parameterise a model for on-farm use, apply it to the pig unit model, and evaluate it using external data from commercial farms. Twenty-one pig farms were surveyed in western France in 2015 to collect data on animal performance, batch and shipping management, and farming practices. The parameterisation process was divided into six steps which correspond to incremental parameterisation of the model using data collected in the survey. The first step consists of parameterising the inputs related to farm infrastructure and management. The second step consists of setting initial mean weight and age of pigs at the beginning of fattening equal to those observed on each farm. The third step consists of three successive parameterisations for targeted slaughter weight, mean protein deposition, and mean feed intake. Steps four, five and six are iterations of step three. Each input parameterisation step improved predictions, with a decrease in the squared bias, non-unity slope and lack of correlation between predicted and observed data. For slaughter weight (SW), the root mean squared error (RMSE) decreased from 3.25 to 0.83 kg (i.e. from 2.8 to 0.7% of mean SW). For average daily gain (ADG), the RMSE decreased from 58.9 to 14.3 g live weight (LW)/day (i.e. from 7.3 to 1.8% of ADG). For the feed conversion ratio(FCR), the RMSE decreased from 0.22 to 0.03 kg feed/kg LW (i.e. from 7.8 to 1.1% of mean FCR). Considering the final RMSE values, the parameterisation process developed appears suitable for calibrating the model for future use in a decision support system.

2018

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