February 7, 2012

GENETIC & QUALITY OF PRODUCTS 

Main oral presentations

• Estimation of the quantitative effect of mutations in major genes or candidate genes in a family-based structured scheme from French purebred pig populations
• Fine mapping of QTL regions using the PorcineSNP60 Beadchip for feed intake, growth, carcass composition and meat quality in Large White pigs
• Selection for feed efficiency in growing pig: opportunities and consequences of using residual feed intake in collective selection breeds
• Genetic selection on residual feed intake in growing Large White pigs induces a correlated response on tissue energy metabolisms
  
• A way towards selection for residual feed intake in growing pigs to find a balance between feed efficiency, meat quality and environmental impact
  
• Control of Salmonella in pig supply chain: which step to target ?
  
• An approach to androstenone and skatole thresholds for consumer acceptability of entire male pork

Technical papers

• Chromosomal control of pig populations in France: 2007–2010 survey
  
• Gene polymorphisms associated with aggression in pigs
  
• Genetic variability of the efficiency of protein deposition in growing pigs: a limited potential for selection?
  
• Nanobiosensors based on olfactory receptors for the detection of boar taint in entire male pigs
  
• Quality of meat from entire, castrated or immunocastrated male pigs as affected by preslaughter handling
  
• Effect of addition of n-3 fatty acids and plant antioxidants in pig diet on the nutritional and sensorial quality of dry-cured hams
  
• High Throughput Determination of Intramuscular Fat Content By Magnetic Resonance Imaging

ANIMAL HEALTH

Main oral presentations

• Evolution of medication costs over 10 years from the technical and economic national database and variation factors.
  
• Atrophic Rhinitis in 2010: Assessment of the lesional prevalence at the slaughterhouse and the relation with certain farm characteristics
  
• Estimation of time-dependent infectiousness of pigs infected by the Porcine Reproductive and Respiratory Syndrome virus (PRRSV): correlation with the viral genome load in blood, nasal swabs and the serological response.
  
• Collective management of the PRRS in a farms' network: a modeling approach
  
• Effects of castration and immunization against GnRH on the immune system and the adrenocortical axis in pigs
  
• The intestine, a target for deoxynivalenol and its derivatives

 Technical papers

• Impact of vaccination on Porcine Circovirus type 2 (PCV-2) transmission
  
• Regional PRRS control with an autogenous vaccination strategy
  
• Repeatability and reproducibility of atrophic rhinitis lesion scoring at the slaughterhouse
  
• Influence of the cleaning and disinfection process for pig farms on the efficiency of decontamination and the persistence of Salmonella
  
• An attempt to estimate pathogen carriage and infectiousness in piglets at weaning, depending on their age
  
• Biosecurity and hygiene in pig farms: current status and impact on technical and economic performances

ENVIRONNEMENT

Main oral presentations

1. Determinants of crop rotation choices by pig farmers in Brittany
   
2. Environmental and socioeconomic references of French conventional pig systems
   
3. Effect of farming practices on environmental impact of pig production systems
   
4. Investigating sulphur content in pig slurry using a nutritional approach

Technical papers

1. Effects of dietary fibre and floor type on greenhouse gas and ammonia emissions associated with gestating sows
   
2. Measurement of ammonia adsorbed amounts on dust and its consequences on the design of biofilter for aerial pollutants removing in piggeries
   
3. Effect of litter type and feeding system on ammonia and greenhouse gas emissions in growing pigs
   
4. Ammonia and nitrous oxide emissions in pig farms equipped with a frequent slurry removal system
   
5. Costs of the resorption of excess phosphorus in pig farms according to performances of processes
   
6. Development of continuous phosphorus recycling pilot process to obtain mineral fertilizer from biologically treated pig slurry.
   
7. Sanitation of pig slurry by a continuous thermal treatment: evaluation of the impact of different temperatures on the persistence of bacterial and viral indicators

February 8, 2012 

FEEDING (session 1)

Main oral presentations

• From one pig to a group of pigs: accounting for links among individual parameters in growth modeling at the population scale
  
• Development of a model simulating the metabolic fate of dietary phosphorus and calcium in growing pigs
  
• Modulation of phosphorus digestive utilisation in weanling pigs: influence of dietary calcium and phytase on gastro-intestinal digesta pH and mineral solubility

Technical papers

• Effect of different dietary calcium concentration on the digestive and metabolic response to microbial phytase in growing pigs
• Effect of extruded linseed in the sow diet on piglet intestinal barrier function.
  
• Impact of functional nuclei adjunction in a novel food on the food intake of weaned pigs during a feeding transition
  
• Influence of feeding Saccharomyces cerevisiae boulardii on immunoglobulins of sow's colostrum and milk
  
• Effect of different dietary fat sources at the end of gestation on the performance of sows and their offspring
  
• Impact of administering organic acids, salts of sodium and bioflavonoids on Salmonella excretion in sows
  
• Effect of parity and number of suckling piglets on milk production of sows

FEEDING (session 2)

Main oral presentations

4. Effect of a divergent selection for residual feed intake in growing pigs on the response to a deficiency in dietary amino acid supply
   
5. Precision feeding in growing-finishing pigs: Estimating the dynamic requirements of lysine supporting maximal daily gain
   
6. Energy value and use of glycerol for growing pigs

Technical papers

8. Preference for diets with free L-valine in pigs with different valine status
   
9. An excess supply of leucine aggravates the effect of a valine deficiency in piglets
   
10. Isoleucine requirement in post-weaned piglets
    
11. Influence of genotype on tryptophan metabolism in pig
    
12. Tryptophan requirements of growing and finishing pigs
    
13. Influence of different preservation practices of corn grain (dry, inerted or silage) on its nutritional value in growing pigs
    
14. Ileal and total digestibility of wheat, barley and corn distiller nutrient in pig: enzymatic cocktail effect
    
15. Near-infrared spectrometry : a rapid analytical tool for n-3 polyunsaturated fatty acid measurement on backfat of pig carcass
    

ECONOMY & SOCIOLOGY

Main oral presentations

• Setting up of new pig breeders in Brittany, the issues and factors of success depend on the project conditions
  
• Trends in pig farming in the European Union: an evolving model
  
• International pork trade : the main flows and their trends

Technical papers

• The price of pork and pig feed in the main producing areas in the world: a new deal?
  
• Assessment of pig prices perceived by European Union producers
  
• Characteristics of the pork industry chain in Germany : prices, organization and relationships between players
  
• Back to growth for Dutch pig production: how to understand it?
  
• Killing out percentage for finishing pigs in France : consequences on the technical results
  
• Common perceptions and real nature of salaried women's work on pig farms

ANIMAL WELFARE

Main oral presentations

• Main features of organic pig farms in six European countries
  
• Tool design for assessment and management of welfare in animal husbandry: what action for what purpose?
  
• Reduction of confinement duration from 7 to 3 days postpartum for sows housed indoors: what reproductive and behavioural consequences ?

Technical papers

• What is the impact of sow longevity on technical and economic performance in pig farms?
  
• Visit order in an automated feed distributor in groups of pregnant sows : impact of access hour and social rank
  
• DNA methylation analysis in sperm from boar with bad sperm quality
  
• Oviductal secretions, especially DMBT1, have a beneficial effect on monospermic fertilisation in the pig
  
• Effect of preoperative meloxicam or tolfenamic acid administration on stress and pain induced by surgical castration in piglets
  
• Relationship between piglet vitality at birth and time to reach the udder: consequence on subsequent performances
  
• Comparison of two methods of water supply for fattening pigs with liquid feeding
  
• Pig growth at low rearing temperature: effects on performances and body composition.
  
• Fattening pigs on straw litter: improvement possibilities