A5066979073- Virology and Viral Diseases
- Influenza Virus Research Studies
- Animal Virus Infections Studies
- Animal Disease Management and Epidemiology
- Animal Nutrition and Physiology
- Viral Infections and Vectors
- Respiratory viral infections research
- Animal Behavior and Welfare Studies
- Immune Response and Inflammation
- Viral gastroenteritis research and epidemiology
- Insect and Pesticide Research
- Burkholderia infections and melioidosis
- Insect Pest Control Strategies
- Livestock and Poultry Management
- Microbial infections and disease research
- Antimicrobial Resistance in Staphylococcus
- Insect Utilization and Effects
- Bird parasitology and diseases
- GABA and Rice Research
- Vector-Borne Animal Diseases
- Salmonella and Campylobacter epidemiology
- Helminth infection and control
- Streptococcal Infections and Treatments
- Coccidia and coccidiosis research
- Clostridium difficile and Clostridium perfringens research
University of Georgia
2010-2024
Georgia College & State University
2021
U.S. National Poultry Research Center
2012-2016
Agricultural Research Service
2012-2016
United States Department of Agriculture
2012-2015
Texas A&M University
1980
Low pathogenicity avian influenza virus (LPAIV) and lentogenic Newcastle disease (l NDV) are commonly reported causes of respiratory in poultry worldwide with similar clinical pathobiological presentation. Co-infections do occur but not easily detected, the impact co-infections on pathobiology is unknown. In this study chickens turkeys were infected a l NDV vaccine strain (LaSota) H7N2 LPAIV (A/turkey/VA/SEP-67/2002) simultaneously or sequentially three days apart. No signs observed...
Wild aquatic birds have been associated with the intercontinental spread of H5 subtype highly pathogenic avian influenza (HPAI) viruses A/goose/Guangdong/1/96 (Gs/GD) lineage during 2005, 2010, and 2014, but dispersion by wild waterfowl has not implicated other HPAI viruses. To better understand why Gs/GD infect transmit more efficiently in than viruses, groups mallard ducks were challenged one 14 different H7 including a H5N1 (clade 2.2) virus from Mongolia, part 2005 dispersion, H5N8 H5N2...
H5N1 highly pathogenic avian influenza (HPAI) viruses continue to be a threat poultry in many regions of the world. Domestic ducks have been recognized as one primary factors spread HPAI. In this study we examined pathogenicity HPAI different species and breeds domestic effect route virus inoculation on outcome infection. We determined that varies between two common farmed duck species, with Muscovy (Cairina moschata) presenting more severe disease than various Anas platyrhynchos var....
In a previous study, we found clear differences in pathogenicity and response to vaccination against H5N1 highly pathogenic avian influenza (HPAI; HA clade 2.3.4) between Pekin (Anas platyrhynchos var. domestica) Muscovy (Cairina moschata) ducks vaccinated using commercial inactivated vaccine (Re-1). The objective of the present study was further investigate HPAI viruses different species by examining clinical signs innate immune responses infection with strain virus (HA 1) two domestic...
A function of bedding material in poultry houses is to absorb and release moisture. New commonly placed at inadequate depths houses. Pine shavings are the industry standard for majority United States, but can be hard obtain or costly. Alternative materials were tested moisture absorption retention. Peat moss chopped wheat straw found nearly 8× 7× their own weight moisture, respectively. was then used a broiler study compared fresh pine 6 weeks. Body lower d 7 litter peat treatment with no...
Gulls are widely recognized reservoirs for low pathogenic avian influenza (LPAI) viruses; however, the subtypes maintained in these populations and/or transmission mechanisms involved poorly understood. Although, a wide diversity of viruses have been isolated from gulls, two hemagglutinin (H13 and H16) rarely detected other groups, existing surveillance data suggests they almost exclusively within gull populations. In order to evaluate host range gull-adapted characterize viral infection...
Highly pathogenic avian influenza virus (HPAIV) and Newcastle disease (NDV) are two of the most important viruses affecting poultry worldwide produce co-infections especially in areas world where both endemic; but little is known about interactions between these viruses. The objective this study was to determine if co-infection with NDV affects HPAIV replication chickens. Only infections virulent strains (mesogenic Pigeon/1984 or velogenic CA/2002), not a lentogenic strain (LaSota),...
Asociación de Castellaniella spp. con eventos mortalidad en reproductoras pollos engorde. Desde el año 2018, Centro Diagnóstico e Investigación Avícola la Universidad Georgia se ha observado una mayor incidencia, aunque esporádica, del aislamiento pesadas comerciales varios integradores. Hasta donde sabe, este organismo nunca había reportado avicultura comercial. Las similitudes entre los casos fueron reportes presentación mortalidad, cojera y barbillas inflamadas. El examen post mortem...
Little is known on the interactions between avian influenza virus (AIV) and Newcastle disease (NDV) when coinfecting same poultry host. In a previous study we found that infection of chickens with mesogenic strain NDV (mNDV) can reduce highly pathogenic AIV (HPAIV) replication, clinical disease, mortality. This interaction depended titer viruses used timing infections. To further explore effect mNDV infectious dose in protecting against HPAIV infection, 2-wk-old birds were inoculated...
Spotty liver disease (SLD) has emerged as an important cause of in egg-producing flocks countries such the United Kingdom and Australia States. The organisms implicated SLD include Campylobacter hepaticus and, more recently, bilis. These have been found to focal lesions on livers infected birds. infection results reduced egg production, decreased feed consumption resulting size, increased mortality highly valuable hens. In fall 2021, birds from two (A B) organic pasture-raised laying hens...
SUMMARY Lambs naturally infected with Thysanosoma actinioides and experimentally Haemonchus contortus were used in a controlled experiment to determine the anthelmintic activity of albendazole as compared levamisole. The lambs given 10,000 H larvae 25 35 days before treatment, slaughtered 7 9 after housed on concrete from time treatment until slaughter. In doses 7.5 mg or 3.8 albendazole/kg levamisole/kg, reductions numbers 99%, 85%, 98%, respectively. Reductions T 45%, 0% respectively,...
Hemorrhagic hepatopathy is a syndrome reported in layer pullets resulting mortality and lesions including hepatic, splenic, intestinal necrosis; hepatic splenic enlargement; hemorrhages; amyloidosis of the muscle, spleen, liver; accumulation noncoagulated hemorrhagic fluid coelom; frequently, granulomatous myositis at bacterin injection sites. The characterized literature table egg thought to be associated with administration vaccines, namely, frequently Salmonella enterica subsp. bacterins....
An unusual case of swollen head syndrome in a 55-wk-old broiler breeder flock was identified north Georgia the summer 2019. The presenting complaint elevated mortality and visibly heads. Necropsy affected birds on farm primarily revealed signs bacterial septicemia, with few large scab lesions near vent area. Bacterial culture analysis multiple organisms, but primary organism interest as Erysipelothrix rhusiopathiae, cultured from liver, lung, sinuses, one wattle house. Histopathologic...
When necessary, primary breeders and integrators molt broiler breeder hens to induce a second laying cycle. To protect against Newcastle bronchitis provide progeny with maternal antibodies reovirus (REO) infectious bursal disease (IBD), it is common immunize them prior the first cycle four-way inactivated vaccine. The objective was determine if molted require additional vaccination increase their IBD REO those of progeny. Ross 308 AP (Aviagen) 63 wk age were by providing 100 % ground soybean...