Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 15 of 15 for “"drug residues"”.
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Effect of processing parameters on the detection of animal drug residues in milk
The advent of new methods to detect animal drug residues has resulted in a need to independently validate them. The effects of processing milk on the performance of these methods was evaluated. Antibiotic-free milk samples were spiked with sulfamethazine, penicillin G, and chlortetracycline at …
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Assessment of human exposure to toxic elements and veterinary drug residues from seafood consumption in Bangladesh
… to be contaminated with toxic elements and residues of forbidden veterinary drugs, although not all types of fish consumed have been analyzed. Estimation of dietary exposure to these chemicals from total seafood intake in the Bangladeshi population would be an important tool in policy …
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PEPTIDE ENGINEERING FOR DEVELOPMENT OF ANTIMICROBIALS AGAINST Mannheimia haemolytica
… to be increasingly unavailing and lead to drug residues in meat which may contribute to the development of multi drug resistant bacteria. Many M. haemolytica vaccines are effective in stimulating antibody responses but studies of vaccina-tion in young calves and the cattle exposed to M. …
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Paper Spray - Mass Spectrometry: Investigation of Sampling Devices for Illicit Drug Detection and Quantification
… an alternate paper substrate to enhance drug detection on surfaces like asphalt, cloth, concrete, aluminum, and glass. Analysis occurs on a single spray ticket coated with pressure-sensitive adhesive (PSA), also known as Post-it notes to detect and quantify drug residues. A PS-MS method …
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Extraction and analysis of pharmaceutical residues in environmental samples using SPE with LC-MS/MS
… contamination due to the presence of drug residues. The primary focus of this research is to develop suitably sensitive analytical methods for the determination of residual PPCP contamination based upon solid phase extraction (SPE) and liquid chromatography mass spectrometry (LC-MS). …
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Optimizing Veterinary Drug Residue Monitoring in U.S. Cattle through Trend Analysis and Risk-Based Frameworks
Veterinary drug residues in U.S. cattle continue to raise important food safety, regulatory, and public health concerns. This dissertation integrates three complementary investigations to examine residue trends, evaluate human health risks, and propose an improved framework for national monitoring. …
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High performance liquid chromatography-tandem mass spectrometry of pharmaceuticals and personal care products in environmental and biological matrices
… of various pharmaceutical and illicit drug residues in solid and liquid environmental and biological matrices. Particular focus was given to efficiency of chosen stationary phase, sample preparation procedures and matrix effects which seriously affect the accuracy of LC-MS/MS …
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Entwicklung eines Biosensors zum Nachweis von Antibiotika und Sulfonamiden in Milch- Herstellung der immunchemischen Komponenten
… a biosensor system for the on-line analysis of drug residues in milk. For the development of group-specific antibodies against penicillins rabbits were immunized with an ampicillin-BSA-conjugate. The resulting antiserum was employed for the development of a direct competitive enzyme immunoassay …
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Vibrant Risks: Scientific Aquaculture and Political Ecologies in China
… the early 2000s, after the exposure of illicit drug residues created trade barriers for farmed shrimp from China, the focus of science and technology extension shifted from disease control to food safety. The change from food quantity to quality reflects how the global food regime promotes a …
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Environmental Fate of Ivermectin and its biological metabolites in Soils: Potential implications for the Environmental Impact of Ivermectin Mass Drug Administration for Malaria Control
… data suggests that most IVM-administered drugs remain intact, and more than 90 % of this drug is eliminated in feces. Biological metabolites: 3′′-O-demethylivermectin (3DI) and 24-hydroxymethyl ivermectin (24OHI) are also excreted in feces. Therefore, using manure from treated cattle as …
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Detection of Antibiotic Residues in Bovine Milk
<p>Under the Food, Drug, and Cosmetic Act antibiotics are considered as ·adulterants in milk and milk products. Cultured dairy products cannot be made with milk containing small concentrations -of antibiotics. Also, minute quantities of antibiotics cause allergic reactions in some people. …
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Antimicrobial use practices and resistance in indicator bacteria in communal cattle in the Mnisi community Mpumalanga South Africa
… limited production of novel antimicrobial drugs. Surveillance of antimicrobial use and resistance is a critical component of antimicrobial resistance containment strategies because it provides the background information needed to guide decisions regarding policy changes and therapeutic …
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Dairy cow management systems: handling, health, and well-being
… dairy operations. When considering the actual drug administration practices, the majority (79%) of dairy producers stated that the preferred location for administering all intramuscular (IM) injections is in the neck, although only 20% confirmed that all IM injections are given in that area …
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Διερεύνηση των επιπέδων κτηνιατρικών ανθελμιθικών ουσιών στο γάλα και εκτίμηση της πρόσληψης από τον άνθρωπο
Σκοπός: Ο προσδιορισμός των επιπέδων συγκέντρωσης καταλοίπων κτηνιατρικών παρασιτοκτόνων ουσιών (ανθελμινθικών), σε νωπό γάλα μηρυκαστικών από περιοχές της Νοτίου Ελλάδος και η εκτίμηση της πρόσληψής τους από τον άνθρωπο. Συγκεκριμένα εξετάσθηκαν οι ουσίες, Albendazole, Febantel, Fenbendazole, …