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Article published the January 6, 2020
Introduction Avian coccidiosis is caused by seven species of Eimeria protozoa (E. acervulina, E. maxima, E. tenella, E. mitis, E. necatrix, E. praecox, and E. brunetti) that differ in pathogenicity and immunogenicity [1,2]. The life cycles of all Eimeria species are of the monoxenous sporozoan type. Generally, infection develops following ingestion of sporulated oocysts and release of sporozoites ...
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This member gave a presentation on December 16, 2019
At the following event:
3rd International Symposium on Alternatives to Antibiotics
Article published the December 10, 2019
INTRODUCTION Inclusion body hepatitis (IBH) is caused by fowl adenovirus (FAV) and induces acute infection in chickens. FAV is mainly infectious for young chickens, and is characterized by many pathological changes including necrotic hepatitis, acidophilus or basophilic inclusion body in the nucleus of liver cells. The main clinical symptoms of IBH include anemia and severe dysentery. IBH is ...
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Article published the December 10, 2019
Background Avian coccidiosis impairs the growth and feed efficiency of infected chickens [1]. There were evidences that resistance to avian coccidiosis is associated with inheritance and coccidiosis resistant line could be established by selection [2]. The resistance to avian coccidiosis QTL has been identified near two microsatellite markers on chromosome 1 [3,4]. Associations between parameters ...
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Article published the September 18, 2019
INTRODUCTION Avian coccidiosis is major parasitic disease of high economic concern in the poultry industry worldwide and is caused by at least seven distinct species of Eimeria apicomplexan protozoa that infect the various areas of intestinal mucosa. The economic loss for avian coccidiosis is estimated to be more than $3 billion worldwide (Williams, 1999) and this cost includes in-feed medication ...
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Article published the September 3, 2019
INTRODUCTION Coccidiosis is a ubiquitous intestinal protozoan infection of poultry seriously impairing the growth and feed utilization of infected animals (Lillehoj et al., 2007; Lillehoj and Lillehoj, 2000). Conventional disease control strategies relied heavily on chemoprophylaxis costing the industry tremendously. Existing vaccines comprise live virulent or attenuated Eimeria strains with limi ...
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Article published the August 26, 2019
INTRODUCTION The intestinal microbiome shapes the gut immune system. In rodents, for example, intestinal colonization by Bifidobacterium infantis or Faecalibacterium prausnitzii stimulates the development of Foxp3+ T regulatory cells (Tregs) and interleukin-10 (IL-10) production, while segmented filamentous bacteria induce proinflammatory T helper 17 (Th17) cell development (Lee and Mazmanian, 20 ...
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Article published the August 5, 2019
Background The apicomplexan E.acervulina specifically infects the duodenum resulting in diarrhea, poor feed conversion, and reduced body weight gain, thereby incurring large economic losses to the poultry industry [1]. Traditional disease control methods have relied on chemoprophylaxis with anti-coccidia drugs or immunization with live/attenuated parasite vaccines [2]. However, novel strategies a ...
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Article published the July 26, 2019
INTRODUCTION In the modern intensive production environment, multiple broiler flocks are commonly raised on a single batch of litter where day-old chickens are placed directly on used litter (Volkova et al., 2009). Litter is mainly composed of the bedding materials, feather, manure, the spilled feed and microbiota. Bolan et al. (2010) stated that microbial populations in poultry litter can exceed ...
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Article published the July 22, 2019
Coccidiosis of chickens, one of the most costly diseases affecting the poultry industry worldwide, is caused by infection with one or more of 7 species of the intracellular protozoan parasite Eimeria [1,2]. Eimeria infections occur when susceptible chickens ingest viable sporulated oocysts from contaminated litter. The ingested oocysts invade the intestinal epithelium in a region-specific manner, ...
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Location:Beltsville, Maryland, United States
Profile: Professional
Professional Title: Biologist
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