ABSTRACT An outbreak of African Swine Fever (ASF), characterized by a mortality of 50 to 100% in various herds, was diagnosed among free-ranging domesticated pigs in Delta State, Nigeria, in August 1998. The etiological confirmation of ASF was made by virus isolation, PCR and sequencing of a 280 base pair fragment of the major capsid protein (VP72) gene. Experimental infection of pigs with infected blood resulted in pyrexia, which peaked two to four days postinfection, followed by death in ...
Abstract African animal trypanosomosis is a complex infectious disease responsible for production losses in livestock herds. The severity of the disease has been associated with different species and strains of trypanosomes which have not been characterized molecularly in Nigeria. Many of the previous studies conducted in Nigeria were based on microscopy and serology. This study accessed the prevalence of trypanosomes in the forest (Ogun State) and Savannah (Kaduna State) zones, being major e...
Abstract Forty-five juvenile tilapia and 30 weanling albino rats exposed to water containing 50, 100 and 150ppm of aqueous extract of Aloe vera leaves for 96 hours and 28 days, respectively were used for this study. Fifteen tilapia and 10 rats exposed to clean water (0 ppm A. vera) served as controls. Clinical signs, mortality, gross and histologic organ pathology in the tilapia; weekly haematology, plasma biochemical parameters and organ pathology were monitored in the rats. Fish cultured in...
Abstract The objectives of this study were to evaluate the factors limiting turkey production in Enugu State, Nigeria, determine the seroprevalence of Newcastle disease (ND) virus infection in turkeys raised in Enugu State and compare the clinical signs and lesions of velogenic ND virus (NDV) in turkeys and chickens. The study consisted of a cross-sectional survey of turkey producers in the three senatorial zones of Enugu State and experimental infection of chickens and turkeys with a veloge...
ABSTRACT The risks of humans contracting bovine tuberculosis (BTB) and other mycobacterial infections abound in Nigeria. This could be attributed to the close association between farmers and cattle, unhealthy meat processing practices by butchers, consumption of unpasteurized milk and milk products, and poor knowledge of the disease. The circulating Mycobacterium tuberculosis complex and non-tuberculous mycobacteria in livestock workers and animals are largely unknown. Confirming the sources...
ABSTRACT Nigeria experienced outbreaks of Highly Pathogenic Avian Influenza (HPAI) H5N1 virus in poultry between 2006 and 2008. Mixed poultry rearing have been postulated as factors responsible for easy spread, while inadequate diagnostic specimens and procedures have militated against prompt diagnosis of the disease. This study was designed to elucidate the comparative susceptibility and diagnosis of H5N1 virus infection in chickens and ducks. Clinical and pathological examinations, agar g...
ABSTRACT Tetracylines are among the most commonly available range of broad spectrum antibiotics that are abused and misused in livestock production. Although there are available records on veterinary drug residues; however because of the accessibility of oxytetracycline and tetracycline antibiotics and consequent abuses, there is need for further information on dietary exposure and assessment of risk inherent in ingestion of their residues in treated cattle. Therefore, the concentrations and ...