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Papers by Theodora Omadevuaye

Research paper thumbnail of In vivo micronucleus test as a biomarker of genotoxicity in free-range goats from suspected contaminated environment

Journal of Advanced Veterinary and Animal Research, 2017

Research paper thumbnail of Comparative haematology of quantitative PCR negative trypanotolerant and trypanosusceptible cattle in Nigeria

Comparative Clinical Pathology

Research paper thumbnail of Fatal Outbreak of Eimeriosis in a Rabbitry In Ibadan, Nigeria

African Journal of Biomedical Research, 2020

This report investigates an outbreak of coccidiosis in a rabbitry in Ibadan, Nigeria. The rabbits... more This report investigates an outbreak of coccidiosis in a rabbitry in Ibadan, Nigeria. The rabbits were raised in a commercial breeder rabbitry with a total stock of 700 rabbits. The duration of mortality was 5 days, with an average of 140 rabbits per day giving a total of 635 (85%) mortalities. Clinical signs, necropsy findings, cytological, Histopathological and confirmatory diagnosis were reported and discussed. This case report further showed that coccidiosis in rabbitry is still a serious problem which should be monitored and controlled.

Research paper thumbnail of In vivo micronucleus test as a biomarker of genotoxicity in free-range goats from suspected contaminated environment

Objective: Environmental pollution and the resultant genotoxicity, has become a major livestock, ... more Objective: Environmental pollution and the resultant genotoxicity, has become a major livestock, public and environmental health concern with direct impact on the ecosystem. Here, application of micronucleus test and frequency score as a potential biomarker of genotoxic effect and bio-monitoring have been discussed aiming at exploring environmental polution. Materials and methods: A total of 100 domestic goats slaughtered at the Bodija Municipal Abattoir were used in this study. Blood sample was analyzed for the quantification of the hematological parameters. The bone marrow smear was viewed microscopically for the detection of micronucleus and other nuclear abnormalities. The frequency of micronucleus was quantified to group the sampled goats into MN-positive and MN-negative groups for further analysis. Results: MN was positive in 21% of the sampled goats with varying frequency ranging from (6-15% count per 2000 cells examined). Bi-nucleation, multinucleation and high mitotic index were also observed and quantified. The packed cell volume, mean corpuscular volume and neutrophil count were significantly lower (P<0.05) in the MN-positive groups while anemia was reported in 33.3% of the MN-positive goats. Conclusion: The finding indicates the prevalence and frequency of micronucleus as a biomarker of genotoxicity and an indicator of exposure to environmental genotoxic subtances. Hence, this highlights the relevance of these goats as important sentinel animal model. These findings, therefore, serve as a preliminary data for further studies on the latent genotoxic environmental contaminants and their potential deleterious impact.

Research paper thumbnail of Association of serum magnesium with haematological health indices in dogs

Magnesium (Mg) is the second most abundant trace element in the body of both humans and animals a... more Magnesium (Mg) is the second most abundant trace element in the body of both humans and animals and is an essential element for health. Hypomagnaesemia and hypermagnaesemia have been reported to be common occurrences in critically ill patients and were postulated to determine the prognosis of disease. This study was designed to ascertain the relationship between haematological health indices and serum Mg levels. A total of 103 dogs from the ‘dog market ‘of Jos, Plateau State were sampled. Blood was collected for complete blood count (CBC) using standard manual procedures: Serum protein analysis was by the biuret colorimetric method, while serum Mg levels were determined with an atomic absorption spectrophotometer. Result showed that anaemic dogs (PCV < 35 %) had significantly (p<0.05) lower serum Mg (1.9 ± 0.15 mg/dL) than non-anaemic (PCV ≥ 35 %) dogs (2.6 ± 0.12 mg/dL). Dogs with regenerative anaemia (corrected reticulocyte count ≥ 1%) had significantly (p<0.05) lower s...

Research paper thumbnail of In vivo micronucleus test as a biomarker of genotoxicity in free-range goats from suspected contaminated environment

Journal of Advanced Veterinary and Animal Research, 2017

Objective: Environmental pollution and the resultant genotoxicity, has become a major livestock, ... more Objective: Environmental pollution and the resultant genotoxicity, has become a major livestock, public and environmental health concern with direct impact on the ecosystem. Here, application of micronucleus test and frequency score as a potential biomarker of genotoxic effect and bio-monitoring have been discussed aiming at exploring environmental polution. Materials and methods: A total of 100 domestic goats slaughtered at the Bodija Municipal Abattoir were used in this study. Blood sample was analyzed for the quantification of the hematological parameters. The bone marrow smear was viewed microscopically for the detection of micronucleus and other nuclear abnormalities. The frequency of micronucleus was quantified to group the sampled goats into MN-positive and MN-negative groups for further analysis. Results: MN was positive in 21% of the sampled goats with varying frequency ranging from (6-15% count per 2000 cells examined). Bi-nucleation, multi-nucleation and high mitotic index were also observed and quantified. The packed cell volume, mean corpuscular volume and neutrophil count were significantly lower (P<0.05) in the MN-positive groups while anemia was reported in 33.3% of the MN-positive goats. Conclusion: The finding indicates the prevalence and frequency of micronucleus as a biomarker of genotoxicity and an indicator of exposure to environmental genotoxic subtances. Hence, this highlights the relevance of these goats as important sentinel animal model. These findings, therefore, serve as a preliminary data for further studies on the latent genotoxic environmental contaminants and their potential deleterious impact.

Research paper thumbnail of In vivo micronucleus test as a biomarker of genotoxicity in free-range goats from suspected contaminated environment

Journal of Advanced Veterinary and Animal Research, 2017

Research paper thumbnail of Comparative haematology of quantitative PCR negative trypanotolerant and trypanosusceptible cattle in Nigeria

Comparative Clinical Pathology

Research paper thumbnail of Fatal Outbreak of Eimeriosis in a Rabbitry In Ibadan, Nigeria

African Journal of Biomedical Research, 2020

This report investigates an outbreak of coccidiosis in a rabbitry in Ibadan, Nigeria. The rabbits... more This report investigates an outbreak of coccidiosis in a rabbitry in Ibadan, Nigeria. The rabbits were raised in a commercial breeder rabbitry with a total stock of 700 rabbits. The duration of mortality was 5 days, with an average of 140 rabbits per day giving a total of 635 (85%) mortalities. Clinical signs, necropsy findings, cytological, Histopathological and confirmatory diagnosis were reported and discussed. This case report further showed that coccidiosis in rabbitry is still a serious problem which should be monitored and controlled.

Research paper thumbnail of In vivo micronucleus test as a biomarker of genotoxicity in free-range goats from suspected contaminated environment

Objective: Environmental pollution and the resultant genotoxicity, has become a major livestock, ... more Objective: Environmental pollution and the resultant genotoxicity, has become a major livestock, public and environmental health concern with direct impact on the ecosystem. Here, application of micronucleus test and frequency score as a potential biomarker of genotoxic effect and bio-monitoring have been discussed aiming at exploring environmental polution. Materials and methods: A total of 100 domestic goats slaughtered at the Bodija Municipal Abattoir were used in this study. Blood sample was analyzed for the quantification of the hematological parameters. The bone marrow smear was viewed microscopically for the detection of micronucleus and other nuclear abnormalities. The frequency of micronucleus was quantified to group the sampled goats into MN-positive and MN-negative groups for further analysis. Results: MN was positive in 21% of the sampled goats with varying frequency ranging from (6-15% count per 2000 cells examined). Bi-nucleation, multinucleation and high mitotic index were also observed and quantified. The packed cell volume, mean corpuscular volume and neutrophil count were significantly lower (P<0.05) in the MN-positive groups while anemia was reported in 33.3% of the MN-positive goats. Conclusion: The finding indicates the prevalence and frequency of micronucleus as a biomarker of genotoxicity and an indicator of exposure to environmental genotoxic subtances. Hence, this highlights the relevance of these goats as important sentinel animal model. These findings, therefore, serve as a preliminary data for further studies on the latent genotoxic environmental contaminants and their potential deleterious impact.

Research paper thumbnail of Association of serum magnesium with haematological health indices in dogs

Magnesium (Mg) is the second most abundant trace element in the body of both humans and animals a... more Magnesium (Mg) is the second most abundant trace element in the body of both humans and animals and is an essential element for health. Hypomagnaesemia and hypermagnaesemia have been reported to be common occurrences in critically ill patients and were postulated to determine the prognosis of disease. This study was designed to ascertain the relationship between haematological health indices and serum Mg levels. A total of 103 dogs from the ‘dog market ‘of Jos, Plateau State were sampled. Blood was collected for complete blood count (CBC) using standard manual procedures: Serum protein analysis was by the biuret colorimetric method, while serum Mg levels were determined with an atomic absorption spectrophotometer. Result showed that anaemic dogs (PCV < 35 %) had significantly (p<0.05) lower serum Mg (1.9 ± 0.15 mg/dL) than non-anaemic (PCV ≥ 35 %) dogs (2.6 ± 0.12 mg/dL). Dogs with regenerative anaemia (corrected reticulocyte count ≥ 1%) had significantly (p<0.05) lower s...

Research paper thumbnail of In vivo micronucleus test as a biomarker of genotoxicity in free-range goats from suspected contaminated environment

Journal of Advanced Veterinary and Animal Research, 2017

Objective: Environmental pollution and the resultant genotoxicity, has become a major livestock, ... more Objective: Environmental pollution and the resultant genotoxicity, has become a major livestock, public and environmental health concern with direct impact on the ecosystem. Here, application of micronucleus test and frequency score as a potential biomarker of genotoxic effect and bio-monitoring have been discussed aiming at exploring environmental polution. Materials and methods: A total of 100 domestic goats slaughtered at the Bodija Municipal Abattoir were used in this study. Blood sample was analyzed for the quantification of the hematological parameters. The bone marrow smear was viewed microscopically for the detection of micronucleus and other nuclear abnormalities. The frequency of micronucleus was quantified to group the sampled goats into MN-positive and MN-negative groups for further analysis. Results: MN was positive in 21% of the sampled goats with varying frequency ranging from (6-15% count per 2000 cells examined). Bi-nucleation, multi-nucleation and high mitotic index were also observed and quantified. The packed cell volume, mean corpuscular volume and neutrophil count were significantly lower (P<0.05) in the MN-positive groups while anemia was reported in 33.3% of the MN-positive goats. Conclusion: The finding indicates the prevalence and frequency of micronucleus as a biomarker of genotoxicity and an indicator of exposure to environmental genotoxic subtances. Hence, this highlights the relevance of these goats as important sentinel animal model. These findings, therefore, serve as a preliminary data for further studies on the latent genotoxic environmental contaminants and their potential deleterious impact.