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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 20 of 33 for “"somatic-cell count"”.
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Selection for milk somatic cell count in laboratory mice
… selection experiment for high and low somatic cell count (SCC) was conducted over 14 generations with two selected lines (high line = HSCC, low line = LSCC) of mice. Seven secondary traits (milk yield, total white blood cell count, percentage of phagocytic cells in blood, endotoxin …
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Relationships between somatic cell counts and milk production in dairy cattle
… year period were analyzed. Relationships between somatic cell count and milk production were determined. A curvilinear relationship between somatic cell count and daily milk yield was shown to exist. The relationship indicated daily milk yield declined more rapidly as somatic cell counts increased …
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Bovine acute mastitis: Effect of sodium salicylate on inflammation
… by means of milk indicators of mastitis, somatic cell count and milk serum albumin, an inflammatory mediator (prostaglandin F$\sb{2\alpha}$), quarter milk yield, and clinical responses, gross udder inflammation, body temperature and appetite change.
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Effects of using an enzyme-linked immunosorbent assay to monitor the control of Staphylococcus aureus mastitis in dairy herds
… cows declined significantly (P<.OI), but somatic cell count remained relatively unchanged (P>.lO). Four herds continued to have >10% of the animals infected. Incidence of new infection averaged 3.6% ± 2.8 from the first to the last test. Chronic cows averaged 6.9% ± 4.8 over the seven …
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Photon migration in highly scattering media as a measurement technique on automated cow milking systems
… component of milk that is of interest is the somatic cell concentration. These cells are usually present in milk at a low level, ranging from about 5 x 104 cells mL- 1up to 2 x 105 cells mL-1• Their numbers in milk dramatically increase with the onset of a mastitis infection. The somatic cell …
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Pre- and postpartum nutritional effects on milk production, milk composition, calf weaning weight and postpartum reproductive performance of commercial beef cows
… (fat, protein, lactose, solids-not-fat, somatic cell count), dam body condition score (1 to 9), dam body weight, dam backfat thickness, loineye area, calf weaning weight and postpartum interval to estrus were all evaluated. Milk removal occurred biweekly by vacuum milking machine after …
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Hygienic and compositional quality of Raw Milk Produced by Smallholder dairy farmers in Lusaka Province of Zambia
… of raw milk was determined by assessing its Somatic Cell Count (SCC), Total Bacteria 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 …
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Hygienic and compositional quality of Raw Milk Produced by Smallholder dairy farmers in Lusaka Province of Zambia
… of raw milk was determined by assessing its Somatic Cell Count (SCC), Total Bacteria 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 …
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Desafios para melhoria da qualidade do leite frente às instruções normativas 51 e 62
… the identity and quality of milk in the country, and has stipulated deadlines in order that the raw milk quality indicators (total bacterial count and somatic cell count) were achieved. When the deadline ended for the South, Southeast and Midwest, the Sector Chamber for the milk …
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Avaliação da qualidade do leite cru produzido no município de Areia- PB
… total solids and density. Total bacterial count (CBT) integrated the microbiological analysis and additionally the somatic cell count (CCS) was performed. In general, the milk samples had physicalchemical characteristics not recommended by IN n. 62, suggesting failures in animal feeding …
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Assessment of Antimicrobial Resistance in Pathogens Responsible for Causing Bovine Mastitis in Kentucky
… from cow's selected based on their recent somatic cell count. Samples positive for growth were identified using the gram stain and various biochemical tests. After identification, resistance to 11 antimicrobial agents was assessed using the Kirby-Bauer test. <em>Staphylococcus aureus</em> …
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Fluorescence correlation spectroscopy: ultrasensitive detection in clear and turbid media
… enrichment, extremely low concentrations of cells, bacteria, viruses, and protein aggregates in turbid fluids for clinical and biotechnological applications. The anticipated applications of this technique are many. They range from the determination of the somatic cell count in milk for the …
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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
… Milk from cows in either group whose linear somatic cell count score (SCC) ≥ 5 for the first time during that lactation was culture on blood agar plates to detect mastitis pathogens, and the SCC was determined. Experimental group cows were treated in those quarters with a SCC ≥ 5 while …
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Quantitative frequency-domain fluorescence spectroscopy in tissues and tissue-like media
… to label DNA, and hence visualize chromosomes in cells. The lifetime of ethidium bromide increases by an order of magnitude upon binding to DNA. In this thesis, I demonstrated that the fluorescence photon migration model is capable of accurately determining the somatic cell count (SCC) in a milk …
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Effects of Outdoor Access and Season on Mastitis Pathogen Distribution and Milk Quality Parameters in Dairy Herds in Western Canada
… dysgalactiae, and Klebsiella spp. Bulk tank somatic cell count geometric means fell within expected provincial ranges, supporting the representativeness of the study population. Key findings indicate that pasture access did not universally increase environmental pathogen detection, …
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The Impact of Parlor Equipment and Milking Procedures on Milk Quality in the Southeast US
… function, milking procedures, and bulk tank somatic cell count (BTSCC) and bulk tank standard plate count (BTSPC) on SE US dairy farms. Data from dairies in Virginia (n = 96), Kentucky (n = 96), Tennessee (n = 84), and Mississippi (n = 7) were collected at a single visit for each farm. …
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Lactational, metabolic, and physiological effects of dietary fats and isoacids on early lactating first-calf Holstein heifers
… milk solids-not-fat. Milk protein percentage and somatic cell count were not affected by treatments. Plasma glucose,and glucose and epinephrine challenge parameters were not affected by diet. Peak plasma non-esterified fatty acid response to epinephrine injection, detected at 10 to 12 minites, was …
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USE OF ON-FARM DATA AND MILK LEUCOCYTE COMPONENTS FOR MONITORING THE HEALTH OF DAIRY COWS
… (Advanced Animal Diagnostic) and DeLaval Cell Counter (DeLaval), to detect Total Leucocyte Count (TLC), Somatic Cell Count (SCC) and the concentration of neutrophils, macrophages and lymphocyte. The results of the Generalized Mixed Model highlighted that the three fractions of leucocytes …
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Development of a Gram-type Specific Method for Detection of Bovine Mastitis Pathogens by Combining Loop-mediated Isothermal Amplification (LAMP) and Split Trehalase Technologies
… of an infection can be deduced by measuring the somatic cell count (SCC) or released enzymes, or directly detected by the presence of mastitis pathogens. While many laboratory diagnostic methods (e.g., SCC determination, bacteria culturing, qPCR) exist, few have been modified and adopted for …
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Development of Innovative Microfluidic Polymeric Technologies for Point-of-care & Integrated Diagnostics Devices
… portable microfluidic system for assessing the somatic cell count and fat content of milk in 15 min using a “sample-in, answer-out” approach. The system consists of twelve independent microfluidic devices, essentially flattened funnel structures, fabricated on the footprint of a plastic compact …
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