Benda V.: Studies on the Cell-Mediated Immunity in Chickens Infected with Marek's Disease Virus. Acta vet. Brno, 47,1978: 197-201. The effect oflymphocytes from MDV -infected chickens on HCr-labelled HPRS line 1 Iymphoblasts derived from an from an MDV-induced lymphoma was investigated by using a cytotoxicity test (CTT). In comparison with the control and vaccinated chickens, chickens inoculate...

Abstract. Research objective was to study the intestinal microbiocenosis in broiler chickens. Laboratory test conducted at and Development Center for Agriculture of North-Western Branch Tyumen SB RAS. Methods. Cobb 500 chickens breed used. The main part experiment began age 14 days. By this time, had reached an average body weight 365 grams. control group fed basic diet, consisting total mixed ...

Chickens are considered one of the most important hosts in the epidemiology of Toxoplasma gondii infection because they are an efficient source of infection for cats that excrete the environmentally resistant oocysts and because humans may become infected with this parasite after eating undercooked infected chicken meat. The objective of this study is to review worldwide prevalence of T. gondii...

A seroepidemiologic survey of Coxiella burnetii in cattle and chickens in Thailand was carried out using indirect fluorescent antibody test. Nine of the 130 serum samples from cattle were positive for antibodies against C. burnetii, with antibody titers ranging from 32 to 64. Only one of 113 serum samples from chickens was seropositive, with antibody titer of 16. No C. burnetii-specific DNA was...

The role of mucosal antibody in recovery from a primary infection and resistance to reinfection with infectious laryngotracheitis (ILT) herpesvirus was studied in bursectomized chickens, which were unable to synthesize specific antibodies. Viral antigen in the infected trachea was assessed by indirect immunofluorescence on tissue sections and by ELISA. The ability of bursectomized chickens to r...

Results of isolation of glycopeptide-resistant enterococci from fecal samples of pigs and chickens were found to differ strongly depending upon the type and age of animals and isolation technique (direct selective plate or broth enrichment). Isolations were frequent in broiler chickens and in sows but rare in layer chickens.

Clinical toxoplasmosis in chickens (Gallus domesticus) has been rarely reported in literature. Here we report that three chickens on a farm in Illinois developed neurological signs. One of these chickens was examined postmortem and it had non-suppurative encephalitis with numerous Toxoplasma gondii tachyzoites and tissue cysts. The identity of the protozoa was confirmed immunohistochemically by...

A galacto-oligosaccharide (GOS) prebiotic was prepared by reacting a high concentration of lactose (40% wt/vol) with a beta-galactosidase enzyme for 24 h at 37 degrees C. The enzyme was produced from recombinant Pichia pastoris X-33 cells. The study aimed at evaluating the effects of the prebiotic, a Bifidobacterium lactis-based probiotic, and the combination of these dietary additives on BW, f...

infected with cestodes through ingestion of their arthropod intermediate hosts. In the present study, Raillietina sp. was recovered in relatively small numbers compared to Nigerian indigenous chickens that were reported to harbour more tapeworms than ascarids. Similarly, indigenous chickens from southern Ethiopia were reportedly infected with various types of tapeworms. The presence of cestodes...

Thirteen oncogenic and necrotizing animal viruses were assayed in LIFE Sciences, Inc. (LSI)-specific pathogen-free Japanese quail and LSI-specific pathogen-free chicken embryo cell cultures. Nine viruses produced similar titers in the quail and chicken cell systems, whereas four viruses showed significantly higher titers in chickens. Young Japanese quail and chickens were inoculated with five s...