A5053921066- Viral gastroenteritis research and epidemiology
- Animal health and immunology
- Animal Disease Management and Epidemiology
- Vector-Borne Animal Diseases
- Microbial infections and disease research
- Respiratory viral infections research
- Animal Virus Infections Studies
- Gastrointestinal disorders and treatments
- Diphtheria, Corynebacterium, and Tetanus
- Animal Nutrition and Health
- Reproductive Physiology in Livestock
- Bacterial Identification and Susceptibility Testing
- Forensic Entomology and Diptera Studies
- Animal Behavior and Welfare Studies
- T-cell and Retrovirus Studies
- Soil Mechanics and Vehicle Dynamics
- Congenital Anomalies and Fetal Surgery
- Viral Infections and Vectors
- Agriculture and Farm Safety
- Parvovirus B19 Infection Studies
- Iron Metabolism and Disorders
- Trace Elements in Health
- Meat and Animal Product Quality
- Eosinophilic Disorders and Syndromes
- Veterinary Equine Medical Research
Auburn University
2013-2025
Louisiana State University
2024
Kansas State University
2016-2019
Abstract Control of bovine viral diarrhea virus (BVDV) in cattle populations across most the world has remained elusive spite advances knowledge about this pathogen. A central feature perseverance herds is unique mechanism persistent infection. Managing BVDV infection involves controlling persistently infected carrier animals using a multidimensional approach vaccination, biosecurity, and identification reservoirs. decade passed since original American College Veterinary Internal Medicine...
New standards for passive immunity in dairy calves from U.S. operations recommend serum IgG concentrations of ≥ 25 g/L at least 40% the calves. To achieve this level maternal colostrum (MC), a single feeding 300 g within 2 h or 400 multiple feedings 24 is recommended. However, similar recommendations do not exist when replacers (CR) need to be used. The objective study was determine if by different replacement protocols resulted excellent transfer (serum > g/L).
Reducing exposure of pregnant cattle to bovine viral diarrhea virus (BVDV) by early detection and elimination persistently infected (PI) calves is critical for control eradication programs. Common test PI such as antigen-capture ELISA (ACE), reverse transcription polymerase chain reaction (RT-PCR), immunohistochemistry (IHC) the calf-side snap (i.e., IDEXX Snap® BVDV antigen test, IDEXX, Fort Collins, CO) are commonly used producers veterinarians cattle. Although most tests highly...
The objective of this study was to evaluate the effects colostrum supplementation milk replacer ration on disease occurrence, antibiotic therapy, and performance pre-weaned dairy calves with adequate transfer passive immunity. Two hundred two 1-d-old Holstein were assigned 1 2 groups after arrival a calf rearing facility. Calves control group (n = 100) received (28% crude protein 20% fat) without inclusion twice daily. treatment 102) 150 g supplemental powder added their daily for first 14 d...
Infections with bovine viral diarrhea virus (BVDV) of the genus pestivirus, family Flaviviridae, are not limited to cattle but occur in various artiodactyls. Persistently infected (PI) main source BVDV. Persistent infections also heterologous hosts such as sheep and deer. BVDV goats commonly result reproductive disease, viable PI rare. Using 2 isolates, previously demonstrated cause white-tailed deer, this study evaluated outcome experimental infection pregnant goats. Pregnant (5...
Background The route of Corynebacterium pseudotuberculosis infection in horses remains undetermined, but transmission by insects is suspected. Objectives To investigate house flies ( Musca domestica L.) as vectors C. horses. Animals Eight healthy, adult ponies. Methods Randomized, controlled, blinded prospective study. Ten wounds were created the pectoral region where cages for attached. Three ponies directly inoculated with . Four exposed 24 hours to 20 ‐inoculated flies. One negative...
Vaccination of young calves against Bovine viral diarrhea virus (BVDV) is desirable in dairy and beef operations to reduce clinical disease prevent spread the among cattle. Although protection from by multivalent, modified-live (MLV) vaccines has been demonstrated, ability MLV viremia shedding possessing passive immunity not known. The purpose this study was compare three different disease, viremia, early weaned maternal that were vaccinated once at 45 days prior challenge with virulent BVDV...
Abstract OBJECTIVE To evaluate the efficacy of 4 commercially available multivalent modified-live virus vaccines against clinical disease, viremia, and viral shedding caused by bovine diarrhea (BVDV) herpesvirus 1 (BHV1) in early-weaned beef calves. ANIMALS 54 steers (median age, 95 days). PROCEDURES Calves were randomly assigned to 5 groups administered PBSS (group A [control]; n = 11) or that contained antigens BHV1, BVDV types (BVDV1) 2 (BVDV2), parainfluenza type 3 virus, respiratory...
Abstract Background Down cow syndrome is commonly described in dairy cattle. The diagnosis and treatment of nonambulatory cattle challenging prognostic indicators this condition beef have not been determined. Objectives Evaluate records (≥2 years age) presented to 2 referral hospitals for inability stand identify survival discharge. Animals Sixty‐three adult treated at hospitals. Methods Medical 63 between January 2010 December 2022 were retrospectively analyzed. Continuous categorical...
Background The stoic nature of alpacas and limitations current diagnostic tests make early recognition inflammatory diseases in this species challenging. Objectives In a model mild systemic inflammation, study evaluated the utility different clinical clinicopathologic variables as accurate predictors inflammation alpacas. Animals Twelve clinically healthy were randomly assigned to equal‐sized treatment ( TG ) control CG groups. After collection initial blood samples (0 hour),...
Maternal antibodies interfere with BRSV vaccine responses and efficacy in young calves. The objective of this study was to determine if vaccination before the complete absorption colostral results adequate immune priming clinical protection beef Within 6 h life, calves were randomly assigned 2 different treatment groups. Group Vacc (n = 25) received a single dose modified-live virus (MLV) intranasally (IN) group Control mL 0.9% saline IN. At approximately 3 months age, all experimentally...
To compare initial titers, duration, and residual clinical protection of passively transferred bovine respiratory syncytial virus (BRSV) nasal immunoglobulin (Ig) G-1 IgA, serum neutralizing (SN) antibodies.40 three-month-old beef steers born either to unvaccinated or vaccinated cows.During the last trimester gestation, cows were assigned randomly groups. Calves grouped on basis whether they nursed colostrum from dams (NO-VACC group; n = 20) versus with 2 doses an inactivated BRSV vaccine...
A six‐month‐old, orphaned Charolais heifer presented for a five‐day‐history of lethargy and inappetence. On examination, the calf was severely icteric exhibited haemoconcentration methaemoglobinaemia. The developed haemolysis haemoglobinuria following day leading to performance whole blood transfusion. Liver biopsy revealed evidence plant‐based toxic hepatopathy an elevated copper concentration. Analysis calf's feedstuffs did not reveal source excess copper, although one milk replacer sample...