Alien Registration- Tessier, Marie C. (Jay, Franklin County)

https://digitalmaine.com/alien_docs/19280/thumbnail.jp

Low Temperature Scanning Electron Microscopy of Clay and Organic Constituents and their Relevance to Soil Microstructures

Low temperature scanning electron microscopy (LTSEM) is essential for studying the microstructure of small-sized soil constituents such as clays and organic matter. These hydrated and swelling materials naturally undergo drastic changes in water potential and water content in soils. The cryofixation of clays and organic macromolecules by immersion in cryogens and their LTSEM observation are evaluated. The microstructures of clay minerals, polysaccharide macromolecules and their associations, as revealed by LTSEM, contribute to a better understanding of the water retention properties and physical stabilities of these major soil constituents

Arguing and negotiating in the presence of social influences

Postprin

Longitudinal investigation of Salmonella spp. from farm to fork in the pig industry in Reunion Island

Salmonella is, after Campylobacter, the most reported zoonotic pathogen in Europe. Pork meat is frequently incriminated in salmonellosis. However, asymptomatic carrying of Salmonella by pigs makes its detection difficult. Despite its tropical situation, pig industry of Reunion Island is also concerned by this public health burden

Prevalence and risk indicators associated with Salmonella infection in farrow-to-finish farm in Reunion Island

Salmonella is the second cause of foodborne diseases in France and pork products are regularly incriminated. For the implementation of control measures in farms, it is necessary to better understand the risks of infection of pigs by Salmonella at farms. Our epidemiological study aims to determine Salmonella prevalence of fattening pigs in Reunion Island, oversea territory of France, and the main risk indicators for pig infection. Fifty farms (farrow-to finish and multiplier) were randomly selected and visited 4 times: at slaughtered previous batch, after cleaning and disinfection, beginning and end of the fattening period for the studied batch. Pools of fresh faeces, gauze socks and gauze swabs were sampled to assess the bacteriological status of these pig farms. A questionnaire was submitted to farmers and analysed for the further identification of risk indicators