Drug resistance is a problem wherever livestock are raised under intensive conditions and drugs are used to combat parasitic infections. This is particularly true for the anticoccidial agents used for the prevention of coccidiosis caused by protozoa of the apicomplexan genus Eimeria in poultry. Resistance has been documented for all the dozen or so drugs approved for use in chickens and varying...

Coccidiosis, a major intestinal parasitic disease of poultry, induces a cell-mediated immune response against the etiologic agent of the disease, Eimeria. In the current study, the expression levels of gene transcripts encoding pro-inflammatory, Th1, and Th2 cytokines, as well as chemokines were measured in intestinal intraepithelial lymphocytes (IELs) after Eimeria maxima infection. In additio...

Sexual-stage glycoproteins of Eimeria are important components of the oocyst wall, a structure that ensures the efficient transmission of these and related parasites. In this study, the primary enzyme in the glycosylation pathway of Eimeria tenella, glucosamine:fructose-6-phosphate aminotransferase (EtGFAT), has been characterized as a macrogamete-specific protein. Although the transcription of...

Coccidiosis in chickens is caused by 7 species of Eimeria. Even though coccidiosis is a complex disease that can be caused by any combination of these species, most of the molecular research concerning chicken coccidiosis has been limited to Eimeria tenella. The present study describes the first large-scale analysis of expressed sequence tags (ESTs) generated primarily from second-stage merozoi...

Raeini breed is the most productive Cashmere goat in Iran. Helminthes infections cause major economiclosses globally to the livestock industries and farming communities. The objective of this study was todetermine the seasonal prevalence and intensity of Eimeria and gastrointestinal helminth parasitic infectionsin Raeini goats in Iran. A total of 438 faecal samples were randomly taken from clin...

One-day-old broiler chicks (n = 300) were orally vaccinated (Coccivac-B) and divided into 6 groups to evaluate Arg at 3 levels of supplementation, 0, 0.3, or 0.6% [normal level (NARG), medium level (MARG), or high level (HARG), respectively], and 2 levels of vitamin E (VE), 40 or 80 IU/kg of feed (VE40 or VE80, respectively), in a factorial experiment. Birds were reared in floor pens with fresh...

Essential oil of Rosmarinus officinalis induces in vitro anthelmintic and anticoccidial effects against Haemonchus contortus Eimeria spp. small ruminants | M Aouadi, E Sebai, A Saratsis, V Kantzoura, K Saratsi, Msaada, S Sotiraki, H Akkari Agricultural Journals

Previous studies revealed an ameliorating effect of Eimeria praecox on concurrent E. maxima infection, such that weight gain, feed conversion ratio, and intestinal lesions were nearly identical to uninfected or E. praecox-infected controls. The purpose of the present study was to determine if protective immunity against E. maxima challenge infection developed in chickens infected with both E. p...

Eimeria belonging to the phylum apicomplexan protozoa is recognized as the the major parasitic disease of poultry. Caecal coccidioisis caused by Eimeria tenella is a major threat to poultry production. The drugs which can inhibit sporulation process are best choice as preventive measures. Anticoccidial drugs have played a major role in the effective control of avian coccidiosis, but their exten...

Coccidiosis is a ubiquitous disease caused by intestinal protozoan parasites belonging to several distinct species of the genus Eimeria. Cell-mediated immunity (CMI) is critically important for protection against Eimeria; thus, our approach utilizes the bacterial type III secretion system (TTSS) to deliver an antigen directly into the cell cytoplasm of the immunized host and into the major hist...