characterization of isolated pigeon paramyxovirus-1 (pmv-1) and its pathogenicity in broiler chickens were studied. two hundred and thirty-two samples collected from 50 unvaccinated pigeons lofts suspected to newcastle disease from private houses and bird markets from ahvaz , iran. swab samples from cloaca and oropharynx of live pigeons and from trachea, lung, liver, spleen, kidney, brain, prov...

The study was carried out on the availability of laboratory facilities in teaching Basic Science Students’ academic performance Upper Schools, Kwara State, Nigeria. This target population for all Teachers Nigeria, four hundred and sixty-nine (469) Public Schools three sixty two (362) private schools are available area. researcher designed teachers' questionnaire administered to thirty six (236)...

One thousand one hundred and sixty three patients (male-852, female-311) with ureteric calculi requiring intervention were treated between April 1988 to July 1992. Four hundred and eleven cases were treated by ESWL Monotherapy, 414 by stone manipulation plus ESWL, 301 by retrograde ureteroscopic lithotripsy, 36 by percutaneous antegrade ureteroscopic lithotripsy and 1 case by open ureterolithot...

Bacterial co-infections can probably influence the pathogenicity of H9N2 low pathogenic avian influenza virus (AIV). This study aimed to evaluate the effect of exposure time to Escherichia coli (O:2) on the pathogenicity of H9N2 AIV in broiler chickens. Three hundred and sixty broiler chickens were randomly allocated to six equal groups. At the age of 26 days, all chicks except groups 5 and 6 w...

in this research, white spot syndrome virus (wssv) with 105.4ld50.ml-1 inactivated with gamma irradiation at a dose rate of 14-15 kgy.sec-1 was used as a vaccine. three hundred and sixty shrimp of litopenaeus vannamei, medium body weight (mbw) 1.0±0.17g), were prepared and experimentally exposed. they were distributed among four groups, inclusing vaccinated-virus exposed (t1), vaccinated-nonvir...