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 12 of 12 for “"Antibiotic residues"”.
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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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Duration of Antibiotic Residues in Milk from Cows Treated via Intrauterine and Intramammary Infusion
<p>Antibiotics have been employed by farmers and veterinarians for treatment of infectious cattle diseases for over 3 decades. The most common of these diseases in dairy cows is mastitis. Mastitis is defined by the National Mastitis Council (NMC) (49) as an inflammation of the mammary gland. It is …
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Pharmacokinetic Evaluation of the Blood: Tissue Relationship in Poultry: Screening for Antibiotic Residues in Chicken Muscle
… drugs. Some of these substances can leave residues in food products and possibly expose consumers to their potential toxic effects. To address these problems extensive regulatory efforts are devoted to prevent, detect and control these substances from reaching the food supply. However, …
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Effectiveness of on-farm screening tests for detection of antibiotic residues and control of mastitis through antibiotic therapy based on somatic cell counts
… of on-farm tests for the detection of antibiotic residues in milk and urine was examined using the Virginia Tech dairy herd. Milk samples from treated cows were collected 72 hours post treatment and tested for residues by the Bacillus stearothermophilus Difco disc assay, the …
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The Effects of dairy cattle antibiotics on soil microbial community cycling and antibiotic resistance
Antibiotic use in agricultural ecosystems has the potential to increase resistance to antibiotics in soil microbial communities since 40-95% of an antibiotic dose administered to livestock is excreted intact or as metabolites. Exposure to antibiotics is also known to alter microbial community …
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Shining light on food microbiology; applications of luciferase-tagged microorganisms in the food industry
… starter culture disruption by bacteriophages and antibiotic residues. The third of this thesis was to examine the use of a bioluminescent-based assay to test the activity of bioengineered Nisin derivatives M21V and S29A against foodborne pathogens in laboratory media and selected foods.
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Dye Marking of Antibiotics Used in Treatment of Mastitis
… mastitis 1.5 times per year (74). The minimum antibiotic treatments per case of mastitis is two; with approximately 11 million dairy cows in the United States, the annual minimum number of antibiotic treatments is 33 million. In South Dakota, with nearly 160 thousand dairy cows, the number of …
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Antimicrobial effects of naturally occurring compounds against microorganisms relevant to food safety
Different types of antibiotics and chemical preservatives have been widely used in the agricultural food industry for various purposes including improvement of productivity and profits in modem farming practice, control of animal diseases and extension of shelflife of food products. However, due to …
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Hygienic and compositional quality of Raw Milk Produced by Smallholder dairy farmers in Lusaka Province of Zambia
… Count (TBC), Total Coliforms Count (TCC), Antibiotic Residues (ARs), added water and milk components. Altogether, 83 samples of raw milk were collected and analyzed at the University of Zambia, School of Veterinary Medicine Public Health Laboratory. Somatic Cell Count (SCC) of milk was …
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Hygienic and compositional quality of Raw Milk Produced by Smallholder dairy farmers in Lusaka Province of Zambia
… Count (TBC), Total Coliforms Count (TCC), Antibiotic Residues (ARs), added water and milk components. Altogether, 83 samples of raw milk were collected and analyzed at the University of Zambia, School of Veterinary Medicine Public Health Laboratory. Somatic Cell Count (SCC) of milk was …
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Closing the loop: Assessing the viability and environmental risks of human excreta-derived fertilizers in sustainable food systems
… concerns that HEDFs transfer contaminants like antibiotics to the environment and that they contribute to antibiotic resistance development. In this dissertation, we investigated the ecological and agronomic viability of HEDFs in agricultural systems by assessing their impact on soil and plant …