Publications

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isolation, tissue distribution, and molecular characterization of toxoplasma gondii from chickens in grenada, west indies.the prevalence of toxoplasma gondii in free-range chickens is a good indicator of the prevalence of t. gondii oocysts in the soil because chickens feed from the ground. the prevalence of t. gondii in 102 free-range chickens (gallus domesticus) from grenada was determined. antibodies to t. gondii were assayed by the modified agglutination test (mat). antibodies were found in 53 (52%) chickens with titers of 1:5 in 6, 1:10 in 4, 1:20 in 4, 1:40 in 4, 1:80 in 15, 1:160 in 9, 1: 320 in 5, 1:640 in 4 ...200516108546
antimicrobial drug resistance as determined by the e-test in campylobacter jejuni, c. coli, and c. lari isolates from the ceca of broiler and layer chickens in grenada.one hundred and twenty five chickens from grenada, consisting of 77 broilers and 48 layers were examined for carriage of thermophilic campylobacters in their ceca by culture. seventy nine percent of chickens were positive for campylobacters, with an isolation rate of 93.5% for broilers and 56.3% for layers, the difference being significant. sixty-four pure cultures comprising 39 campylobacter coli, 21 campylobacter jejuni, and 4 campyilobacter lari isolates were tested for their resistance again ...200918329712
dna identification and characterization of campylobacter jejuni and campylobacter coli isolated from caecal samples of chickens in grenada.to speciate campylobacter strains from the caeca of chickens in grenada using pcr and to evaluate dna-based typing methods for the characterization of these isolates.201019735321
preliminary molecular characterization of a fowl poxvirus isolate in grenada.two 1-mo-old local breed chickens, with gross lesions in the skin of the head region suspected to be fowl poxvirus infection, were submitted to the diagnostic laboratory of the school of veterinary medicine, grenada, west indies. cutaneous lesions were collected from these birds for virus isolation, histopathologic diagnosis, and molecular analysis. fowl poxvirus infection was confirmed by virus isolation in chicken embryo and by histopathology. molecular characterization of the fowl poxvirus wa ...201020945792
antimicrobial drug resistance in escherichia coli isolated from commercial chicken eggs in grenada, west indies.to determine the antimicrobial resistance profile of escherichia coli (e coli) isolated from the shell membrane and yolk of commercial chicken eggs in grenada.201121809712
isolation and rflp genotyping of toxoplasma gondii in free-range chickens (gallus domesticus) in grenada, west indies, revealed widespread and dominance of clonal type iii parasites.the objectives of the present cross-sectional study were to isolate and genotype toxoplasma gondii in free-range chickens from grenada, west indies. using the modified agglutination test, antibodies to t. gondii were found in 39 (26.9%) of 145 free-range chickens with titers of 25 in 7 chickens, 50 in 6 chickens, 100 in 2 chickens, and 200 or higher in 24 chickens. the hearts of the 39 seropositive chickens were bioassayed in mice; viable t. gondii was isolated from 20 and further propagated in ...201727775481
survey of salmonella contamination in chicken layer farms in three caribbean countries.this study was conducted to investigate the demography, management, and production practices on layer chicken farms in trinidad and tobago, grenada, and st. lucia and the frequency of risk factors for salmonella infection. the frequency of isolation of salmonella from the layer farm environment, eggs, feeds, hatchery, and imported day-old chicks was determined using standard methods. of the eight risk factors (farm size, age group of layers, source of day-old chicks, vaccination, sanitation prac ...201425198837
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