Swine Research Days 2023 : non-French speakers welcome!

55th JRP : Tuesday 31 January and Wednesday 1 February 2023
in Saint Malo (Brittany) 

In 2 days: more than 120 communications
including more than 40 oral presentations and nearly 80 posters

Simultaneous translation into English of the oral interventions and abstracts in English of all publications in the book. 
3 bilingual interpreters and headsets are available at the reception desk… at no extra charge: take advantage of it! 
Non-French speaking participants are welcome!

Tuesday 31 January 2023

10h-11h15 – Economics

Oral interventions

1. Evolution, diversity and typology of pig farms in France: lessons from the 2020 agricultural census and comparison with the 2010 and 2000 censuses
2. Impact of working conditions on the attractiveness of working as an employee in pig farming
3. Study of social feeling of conventional pig farming model using virtual reality
4. Barriers and motivations of farmers towards pig farming systems with outdoor access
5. Alternative pig farm buildings in Germany: technical choices, production costs and marketing of pigs

Posters

6. Economic consequences expected for pig farms in case of an African Swine Fever outbreak
7. Evaluation of potential economic impacts of African swine fever on French pork prices and foreign trade
8. Citizens’ expectations for outdoor access for farm animals
9. What are the representations of trust dimensions between pig farmers and veterinarians?

11h15-12h30 – Animal Welfare

Oral interventions

1. Impact of environmental enrichment of pregnant sows on their behavior and the transcriptional response of their blood immune cells
2. Prediction of the activity pattern of lactating sows by image analysis, and relations with piglet survival and growth
3. Contact voltages < 0.5 V in feeders and drinkers influence the behaviour and oxidative status of piglets
4. Behaviour and physical integrity of pigs with uncut tails housed on slatted floors
5. Variability in pig hair cortisol concentrations at the end of fattening: situation in 20 farrow-to finish farms

Posters

6. Evaluation of effects of a standardized citrus extract on the intestinal microbiota and welfare of peripartum sows under commercial breeding conditions
7. Effect of previous farrowing experience of sows on performances in temporary crating pens at the Crecom experimental farm
8. Prediction of daily activity of gestating sows from manual video analysis periods
9. Behaviour of gestating sows after a repeated feeding competition
10. Short- and medium-term effects of different types of sounds on the behaviour of gestating sows
11. Improvement of a tool to detect technical or health-related events at the scale of several groups of sows
12. Myeloperoxidase activity increases during diarrhoea but does not change during social stress in weaned piglets
13. Behaviour of fattening pigs in a rearing system with an outdoor courtyard
14. Can the sexual behaviour of uncastrated male pigs be reduced by adding chasteberry (Vitex agnus castus) fruit powder to the feed?
15. Gastric ulcers in pigs: characterization and prevalence
16. Lighting levels in weaning and fattening rooms

14h-15h30 – Reproduction and breeding

Oral interventions

1. Tooth resection: variability in pig production and ways to reduce its prevalence
2. Pig departure strategy: a new tool to improve farmers’ performance
3. A long interval since the last meal impairs farrowing progress in sows
4. Relationship between the body condition and lactating performance of sows
5. Construction of a decision support tool to optimize sow culling by farmers
6. Development and evaluation of a sow herd model coupled with a bioclimatic model of gestation rooms

Posters

7. Building a decision support system: important recommendations to consider
8. Pre-weaning survival of supernumerary piglets: evaluation of farm management strategies using new functionalities of PertMat
9. Modelling piglet growth during post-weaning
10. Real-time combination of observed growth and feed intake performance with performance simulated by InraPorc® to apply precision feeding to growing pigs
11. Creation of an alphabet book to understand the specific characteristics of organic pig production
12. Herd practices and pathogen analysis on 10 pig farms in French Guyana
13. Comparison of placenta metabolism at the end of gestation between Large White and Meishan sows

16h15-18h15 – Animal Nutrition

Oral interventions

1. Characterisation of performances and the growth profile of entire or surgically castrated male pigs and assessment of their nutritional requirements
2. Impact of zinc and copper intake on digestibility of minerals in growing pigs
3. Effect of the level and digestibility of the protein fraction on the performance and gut health in weaned piglet
4. Addition of biscuit meal to piglet feed: effects on appetite, performances and feeding behaviour
5. Different sources of free methionine have similar efficiencies in post-weaning piglets according to a meta-analysis and meta-regression study
6. A supply of Solanum glaucophyllum and Capsicum sp. increases sow and piglet performance
7. Dynamics of bone mineralization in primiparous sows as a function of dietary phosphorus and calcium during lactation
8. Effects of precision feeding and the “bump feeding” strategy in gestating sows on performances and body condition in sows monitored for the first two gestation-lactation cycles

Posters

9. From solubilization to intestinal absorption of minerals: a complete in vitro digestion model
10. Effects of calcium levels and increasing doses of phytase on phosphorus and calcium digestibilities, zootechnical performances and mineralization in weaned piglets
11. Impact of the source and level of iron on the live performance and iron status of weaned pigs
12. Effect of two sources of zinc on growth performance and gut health of piglets with a low or normal birth weight
13. 1,25(OH)₂D₃-glycosides to alleviate consequences of the ban on zinc oxide at pharmaceutical levels in piglet diets
14. Double encapsulation of bioactives to support piglet growth and health compared to a high level of zinc oxide
15. Effects of chelated trace elements on growth performance and intestinal health in post-weaning piglets
16. A micro-granulated combination of sweeteners and phytogenics to secure performance of piglets post-weaning
17. A microencapsulated mixture of botanicals in piglets artificially infected with Escherichia coli F4 at weaning
18. Effect of a dietary supply of double-buffered sodium butyrate on the zootechnical performance of weaned piglets
19. Meta-analysis of effects of sodium butyrate supplementation on the performance and intestinal morphology of post-weaning piglets
20. Impact of naked oats and bioactive supplements on growth and intestinal mucosa parameters of weaned piglets
21. Salty vs. sugary food industry leftovers in post-weaning piglets: effects on gut microbiota and intestinal volatile fatty acid production
22. A beta-mannanase enzyme used “On Top” improves the zootechnical performances and digestive health of post-weaning piglets under field conditions
23. Adding biochar to the diet of post-weaned piglets increases the dry matter and carbon content of faeces
24. Effect, before and after weaning, of feeding a piglet milk replacer along with a prestarter
25. Supplementation with short-chain fructo-oligosaccharides (scFOS) limits infection caused by Escherichia coli in weaned piglets
26. Is there an effect of the creep feeding method on growth performance, feed intake, and weight uniformity of pigs up to 9 weeks of age?
27. Determining the isoleucine requirement of post-weaning piglets
28. Variation in protein efficiency as assessed by DXA in barrows fed a protein-restricted diet
29. Lucerne: an interesting source of dietary fibre for the intestinal health of pigs
30. A metaproteomic approach to understand effects of deoxynivalenol and zearalenone on the porcine gut microbiome
31. Effect of supplementation with a copper-exchanged clay on the growth performance of growing-finishing pigs restrictedly fed with a liquid feeding system
32. A consensus bacterial phytase (PhyG) maintains performance of pigs (42-70 and 73-136 days of age) fed without inorganic phosphorus
33. Bile acid profile in pigs fed different levels and sources of copper
34. Predictions of body mineral content in gilts from mating to first parturition: evaluation of models
35. Effect of 25-hydroxycholecalciferol supplementation on the vitamin D blood status of the sow and the farrowing process
36. Effect of dietary fibre solubility in sows on farrowing duration, colostrum quality and offspring growth
37. Influence of high-protein forage on performances of pregnant sows
38. Transgenerational effect of Saccharomyces cerevisiae boulardii CNCM I-1079 applied to sows: impact on post-weaning piglet faecal microbiota and performance

Wednesday 1 February 2023

9h-10h30 – Environment

Oral interventions

1. Effects of low-crude-protein diets on growing pig performance, the nitrogen balance and emissions in the barn
2. Life cycle analysis of pig production – Effect of a reduction in dietary crude protein content and the origin of amino acids – Case study in northern Germany
3. Review of the impact of protein nutrition on the carbon footprint of pig production: current state and perspectives
4. Construction of a model to predict copper and zinc fluxes in pig production
5. Factors associated with the environmental profile of pig farms

Posters

6. Evaluating the effectiveness of aerogeothermy in filtering and conditioning the air entering swine buildings
7. Eco-friendly feed formulation and associated environmental impacts of pig production
8. Accuracy of predictions of pig manure composition by on-board infrared sensors on a manure tanker
9. Calculator of the cost of reducing direct greenhouse gas emissions by changing the management of livestock manure
10. Modelling of slurry pit temperature to evaluate impacts of cooling systems on ammonia emissions

11h15-13h – Genetics and meat quality

Oral interventions

1. Perceptions of stakeholders involved in preserving local breeds – a survey by the GEroNIMO project
2. An automated method for estimating genetics of activity levels in fattening pigs during weighing
3. Genetic study of static and dynamic traits that characterise robustness in fattening pigs
4. Genome editing applied on farm animals: at controversies’ crossroads
5. Classification of pig carcasses according to muscle content in France and the European Union
6. Study of factors associated with destructured meat

Posters

7. Utility of using a caliper at insemination to measure the body condition of sows of different genetic types: influence on farrowing performances
8. Near‐infrared spectrometry: a tool to differentiate pigs according to their diet and predict the fatty-acid composition of pork
9. Estimation of genetic parameters in a new line using two methods
10. Study of genetic parameters of the PSE-like defect in the Pietrain breed 
11. Muscle gain and feed-to-muscle-gain ratio measured by computed tomography in pig selection
12. Genetic effect on the prediction of muscle content of purebred pig carcasses
13. Age effect on genetic parameters of digestibility coefficients

14h30-16h45 – Animal health

Oral interventions

1. Communication and social representations: an application for reducing antibiotic use in farm
2. Participatory approach to optimize antibiotic use to guarantee the health and welfare of pigs and poultry
3. Genetic predisposition and expression of tail biting behaviour in relation to individual pig characteristics
4. Prediction of body temperature of gestating sows using a thermal camera
5. Effects of three fusariotoxins (beauvericin, enniatins and deoxynivalenol), alone or in combination, on piglet health and performances
6. Efficacy of a yeast fraction enriched with β-glucans in reducing toxic effects induced by deoxynivalenol in vitro and ex vivo
7. Effects of two synbiotics fed to sows on sows health, as well as piglet’s health and performance
8. The AHOL (Animal Health Ontology for Livestock) ontology for integrating data on the main diseases of farmed animals: an example in the pig sector

Posters

9. Characterisation of pig farm profiles according to their biosecurity compliance level
10. Health expenses of pig farms in Brittany in 2021
11. Survey of the evolution of antibiotic use on 80 farms of the INAPORC Panel 2019
12. ActionAntibio: a multi-sector online resource centre publishing the projects of the French Ecoantibio plans
13. Key technical actions that can limit post-weaning diarrhea outbreaks
14. Yeast-derived mannan-rich fraction as an alternative to zinc oxide to alleviate diarrhoea incidence and improve growth performance in weaned pigs
15. Response of calcium and phosphorus metabolism to a DON-contaminated feed in piglets
16. Use of porcine intestinal organoids to study the transmissible gastroenteritis virus
17. Colonization by strains of Salmonella Typhimurium and Salmonella Rissen on a pig farm with recurrent clinical salmonellosis
18. Impact of a non-enterotoxigenic Escherichia coli (non-ETEC) vaccine and supplementation with dietary mannan oligosaccharides (MOS) against post weaning diarrhoea (PWD) in weaned pigs
19. Increase of methicillin-resistant Staphylococcus aureus prevalence in pig herds in France
20. Effects of dietary supplementation of sows with synbiotics on health-related gene expression in piglet intestinal tissue
21. Boosting innate immunity to sustainably prevent diseases
22. Utility of a sound-based monitoring technology for early cough detection in a swine fattening unit
23. Using physiological parameters to characterize intra-uterine growth restricted (IUGR) pigs

To register online

Registration fees before 7 January 2023 for the 2 days (all included: book, breaks, lunches, cocktail, replay): 460 € TTC then 520 € TTC for a registration after 6 January 2023
Speaker or exhibitor or INRAE, student (book, lunches, breaks and cocktail) : Tuesday 65 € / Wednesday 45 € / both days 85 €.
Session Chair, Organising Committee and Support Committee: Free of charge

Link to the JRP 2023 Support Committee to learn more about our partners