Hannah J. Sylvester

Works (8)

Updated: April 25th, 2025 18:00

2024 article

Continuous sampling of healthy and mastitic quarters of lactating cattle by ultrafiltration after intramammary ceftiofur hydrochloride administration

Mzyk, D. A., Halleran, J. L., Sylvester, H. J., Giles, C. B., Jacob, M. E., Baynes, R. E., & Foster, D. M. (2024, August 12). Journal of Veterinary Internal Medicine, Vol. 8.

By: D. Mzyk n , J. Halleran n, H. Sylvester n, C. Giles n, M. Jacob n, R. Baynes n , D. Foster n 

author keywords: antimicrobial; dairy cattle; gland cistern; mastitis; pharmacokinetic
MeSH headings : Animals; Cephalosporins / pharmacokinetics; Cephalosporins / administration & dosage; Cephalosporins / therapeutic use; Cattle; Female; Mastitis, Bovine / drug therapy; Anti-Bacterial Agents / pharmacokinetics; Anti-Bacterial Agents / administration & dosage; Anti-Bacterial Agents / therapeutic use; Milk / chemistry; Lactation; Ultrafiltration / veterinary; Mammary Glands, Animal
topics (OpenAlex): Milk Quality and Mastitis in Dairy Cows; Microbial infections and disease research; Animal Genetics and Reproduction
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3. Good Health and Well-being (Web of Science; OpenAlex)
Sources: Web Of Science, ORCID, NC State University Libraries
Added: August 15, 2024

2024 article

Impact of florfenicol dosing regimen on the phenotypic and genotypic resistance of enteric bacteria in steers

Halleran, J., Sylvester, H., Jacob, M., Callahan, B., Baynes, R., & Foster, D. (2024, February 28). Scientific Reports, Vol. 14.

By: J. Halleran n, H. Sylvester n, M. Jacob n, B. Callahan n , R. Baynes n  & D. Foster n 

MeSH headings : Animals; Humans; Escherichia coli / genetics; Gastrointestinal Microbiome / genetics; Thiamphenicol / pharmacology; Thiamphenicol / analogs & derivatives; Anti-Bacterial Agents / pharmacology; Enterobacteriaceae; Drug Resistance, Bacterial / genetics; Microbial Sensitivity Tests
topics (OpenAlex): Antibiotic Resistance in Bacteria; Mycobacterium research and diagnosis; Probiotics and Fermented Foods
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UN Sustainable Development Goal Categories
3. Good Health and Well-being (Web of Science; OpenAlex)
Sources: Web Of Science, NC State University Libraries
Added: April 8, 2024

2021 article

Effects of danofloxacin dosing regimen on gastrointestinal pharmacokinetics and fecal microbiome in steers

Halleran, J. L., Callahan, B. J., Jacob, M. E., Sylvester, H. J., Prange, T., Papich, M. G., & Foster, D. M. (2021, May 27). Scientific Reports, Vol. 5.

By: J. Halleran n, B. Callahan n , M. Jacob n, H. Sylvester n, T. Prange n , M. Papich n , D. Foster n 

MeSH headings : Animals; Anti-Bacterial Agents / pharmacology; Cattle; Enterococcus / drug effects; Escherichia coli / drug effects; Fluoroquinolones / pharmacology; Gastrointestinal Microbiome / drug effects; Gastrointestinal Tract / drug effects; Gastrointestinal Tract / microbiology; Male
topics (OpenAlex): Antibiotics Pharmacokinetics and Efficacy; Antibiotic Resistance in Bacteria; Bacterial Identification and Susceptibility Testing
TL;DR: Danofloxacin treatment consistently resulted in the Euryarchaeota phyla decreasing over time, specifically due to a decrease in Methanobrevibacter, and although microbiome differences were minor between dosing groups, the low dose group had a higher number of isolates with MIC values high enough to cause clinically relevant resistance. (via Semantic Scholar)
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3. Good Health and Well-being (Web of Science; OpenAlex)
Sources: Web Of Science, NC State University Libraries
Added: July 26, 2021

2018 article

Short communication: Use of an ultrafiltration device in gland cistern for continuous sampling of healthy and mastitic quarters of lactating cattle for pharmacokinetic modeling

Mzyk, D. A., Bublitz, C. M., Sylvester, H., Mullen, K. A. E., Hobgood, G. D., Baynes, R. E., & Foster, D. M. (2018, September 7). Journal of Dairy Science, Vol. 101, pp. 10414–10420.

By: D. Mzyk* , C. Bublitz, H. Sylvester*, K. Mullen n, G. Hobgood, R. Baynes* , D. Foster* 

MeSH headings : Administration, Intravenous / veterinary; Animals; Cattle; Chromatography, High Pressure Liquid / veterinary; Clonixin / analogs & derivatives; Clonixin / blood; Clonixin / pharmacokinetics; Feasibility Studies; Female; Lactation; Mammary Glands, Animal / metabolism; Mass Spectrometry / veterinary; Mastitis, Bovine / diagnosis; Milk / chemistry; Ultrafiltration / veterinary
topics (OpenAlex): Milk Quality and Mastitis in Dairy Cows; Reproductive Physiology in Livestock; Animal health and immunology
TL;DR: Collection of ultrafiltration samples from the mammary gland of cows provides a viable means to continuously assess drug concentrations in the milk while continuing to milk the cow normally, and demonstrates the utility of continuous sampling of milk via ultraFiltration for future pharmacokinetic studies in cattle. (via Semantic Scholar)
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3. Good Health and Well-being (Web of Science; OpenAlex)
Sources: NC State University Libraries, ORCID, NC State University Libraries
Added: November 5, 2018

2017 article

Efficacy of an Escherichia coli O157:H7 SRP Vaccine in Orally Challenged Goats and Strain Persistence Over Time

Swift, J. M., Foster, D. M., Rogers, A. T., Sylvester, H. J., Griffith, E. H., & Jacob, M. E. (2017, January 11). Foodborne Pathogens and Disease, Vol. 14, pp. 160–166.

By: J. Swift n, D. Foster n , A. Rogers n, H. Sylvester n, E. Griffith n  & M. Jacob n

author keywords: Shiga toxin-producing E. coli; goats; livestock exhibition; vaccination
MeSH headings : Administration, Oral; Animals; Bacterial Outer Membrane Proteins / immunology; Electrophoresis, Gel, Pulsed-Field; Escherichia coli Infections / prevention & control; Escherichia coli Infections / veterinary; Escherichia coli O157 / immunology; Escherichia coli Proteins / genetics; Escherichia coli Proteins / immunology; Escherichia coli Vaccines / immunology; Feces / microbiology; Food Contamination / prevention & control; Food Microbiology; Goat Diseases / microbiology; Goat Diseases / prevention & control; Goats / immunology; Goats / microbiology; Male; Milk / microbiology; Porins / immunology; Receptors, Cell Surface / immunology; Red Meat / microbiology; Vaccination / veterinary
topics (OpenAlex): Escherichia coli research studies; Salmonella and Campylobacter epidemiology; Viral gastroenteritis research and epidemiology
TL;DR: Further work is needed to evaluate cost-effective intervention strategies that reliably reduce E. coli O157:H7 shedding in goats, particularly those that may reduce the risk of transmission at public events, including petting zoos and fairs. (via Semantic Scholar)
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Sources: Web Of Science, ORCID, NC State University Libraries
Added: August 6, 2018

2017 article

Short communication: Apparent efficiency of colostral immunoglobulin G absorption in Holstein heifers

Halleran, J., Sylvester, H. J., & Foster, D. M. (2017, February 9). Journal of Dairy Science, Vol. 100, pp. 3282–3286.

By: J. Halleran  n, H. Sylvester n & D. Foster n 

author keywords: colostrum; apparent efficiency of absorption; transfer of passive immunity
MeSH headings : Animals; Animals, Newborn; Birth Weight; Cattle; Colostrum / metabolism; Female; Immunodiffusion; Immunoglobulin G / blood
topics (OpenAlex): Animal health and immunology; Gastrointestinal disorders and treatments; Viral gastroenteritis research and epidemiology
TL;DR: Results suggest that serum IgG concentration may potentially be increased by feeding increased volumes of colostrum or genetic selection, given the wide range of AEA values obtained. (via Semantic Scholar)
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Sources: Web Of Science, ORCID, NC State University Libraries
Added: August 6, 2018

2016 article

Effect of high-pressure processing of bovine colostrum on immunoglobulin G concentration, pathogens, viscosity, and transfer of passive immunity to calves

Foster, D. M., Poulsen, K. P., Sylvester, H. J., Jacob, M. E., Casulli, K. E., & Farkas, B. E. (2016, September 14). Journal of Dairy Science, Vol. 99, pp. 8575–8588.

By: D. Foster n , K. Poulsen *, H. Sylvester n, M. Jacob n, K. Casulli n & B. Farkas n

author keywords: high-pressure processing; bovine colostrum; pasteurization; Mycobacterium avium ssp paratuberculosis
MeSH headings : Animals; Animals, Newborn; Cattle; Colostrum / immunology; Escherichia coli / immunology; Female; Immunoglobulin G / blood; Pilot Projects; Staphylococcus aureus / immunology; Viscosity
topics (OpenAlex): Animal health and immunology; Viral gastroenteritis research and epidemiology
TL;DR: High-pressure processing of bovine colostrum maintains an acceptable IgG level while decreasing bacterial and viral counts, and is suggested to be appropriate for on-farm use. (via Semantic Scholar)
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Sources: Web Of Science, ORCID, NC State University Libraries
Added: August 6, 2018

2016 article

Single vs. double dose of copper oxide wire particles (COWP) for treatment of anthelmintic resistant Haemonchus contortus in weanling lambs

Schweizer, N. M., Foster, D. M., Knox, W. B., Sylvester, H. J., & Anderson, K. L. (2016, September 18). Veterinary Parasitology, Vol. 229, pp. 68–72.

By: N. Schweizer n, D. Foster n , W. Knox n, H. Sylvester n & K. Anderson n

author keywords: COWP; Haemonchus contortus; Ovine
MeSH headings : Animals; Anthelmintics / pharmacology; Copper / administration & dosage; Copper / therapeutic use; Dose-Response Relationship, Drug; Drug Resistance; Female; Haemonchiasis / parasitology; Haemonchiasis / therapy; Haemonchiasis / veterinary; Male; Sheep; Sheep Diseases / therapy
topics (OpenAlex): Helminth infection and control; Parasite Biology and Host Interactions; Coccidia and coccidiosis research
TL;DR: The study indicated that administering COWP to lambs at weaning reduced FEC, which was consistent with similar studies at this treatment dose. (via Semantic Scholar)
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UN Sustainable Development Goal Categories
3. Good Health and Well-being (Web of Science; OpenAlex)
Sources: Web Of Science, ORCID, NC State University Libraries
Added: August 6, 2018

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