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Articles by O.U. Ezeronye
Total Records ( 4 ) for O.U. Ezeronye
  N. Amaechi and O.U. Ezeronye
  A study was conducted to identify the degree of salmonella sp. from March to November, 2003; there were 4 visits to each of 5 selected swine farms in Umuahia. Feaces and urine samples were collected from swine on longitudinal and cross-sectional groups on each visit to each farm. Environmental samples including feed, water, pen walls, pen floor, rodents and flies were collected. All sample were evaluated as salmonella positive or negative by culture. Salmonella sp. were detected in 84(18.4%) of the swine samples with the following distribution piglets (15/113, 13.3%), weaners (23/115,20.0%) fatteners (30/20, 25.0%) and adults (16/109,14.7%). The piggery environmental swabs showed that Salmonella sp. were recovered from the wall (15/97, 15.5%), feaces (25/114, 21.99) Urine (2/56,, 3.69) floor 24/100 24.0%, water trough (19/45, 20.0%), and feed trough (8/45, 17.89). The result showed age differences in the distribution of salmonella spp. in Swine that the necessity of adopting more efficient hygienic measures in the areas where swine are raised in order to reduce the role of piggery environment in the spread of salmonella.
  Amaechi, N and O.U. Ezeronye
  Four hundred and fifty-seven (457) clinically healthy swine slaughtered in four abattoirs located in Umuahia area of Abia State of Nigeria were examined for the prevalence of Salmonella sp. in samples collected from spleen, small intestine, liver, lungs and lymph nodes. Swab samples were also collected from the surfaces of slaughtering tables, wash hand basins, butchering knives, workers hands and holden pens. Product samples collected from slaughtering house showed the presence of Salmonella sp. in spleen (4/40, 10.0%), small intestine (9/40, 22.5%). Liver (5/40, 12.5%), lungs (3/40, 7.5%) and lymph nodes (16/40, 40.0%). Salmonella sp. were recovered from slaughtering tables (3/15, 20.0%), wash hand basins (4/15, 26.7%), butchering knife (2/13, 15.4%), workers hands (4/15, 26.7%), holden pens (3/15, 20.0%). These samples were cultured for the presence of Salmonella sp. Simple descriptive statistics and analysis of variance were used to analyze the data collected. Although clinical Salmonellosis was not detected in the study herd, multiple serotypes of Salmonella were found causing endemic infection in the study herd. The most frequently detected species was Salmonella cholereasuis and it was resistant to all the antibiotic used in sensitivity testing except polymyxin B. This result showed the necessity for adopting more effective hygienic measures in the abattoir environment and equipment to reduce their role in the spread of Salmonella. This work will be relevant to abattoir and health workers, to show them the need to maintain good hygienic condition in abattoir environment.
  A.O.Ubalua , U.C. Chijioke and O.U. Ezeronye
  Levels of lead (0.064 Fg L-1), iron (0.81 Fg L-1), zinc (4.82 Fg L-1), copper (0.19 Fg L-1), arsenic (0.05 Fg L-1), manganese (0.03 Fg L-1), chromium (0.005 Fg L-1) and mercury (0.01 Fg L-1) were determined in the water and in some fish and shellfish from Aba river. They were found to be below the maximum allowable levels set by the United states Environmental Protection Agency(USEPA), except for lead, iron and mercury. This implies that waste assimilation capacity of the river is high, a phenomenon that could be ascribed to dilution, sedimentation and continuous water exchange. Emperical evidence shows that the metals were at low levels in the organisms. However, when compared with levels determined in fish from a rural river, relative enrichment in the Aba river fish, ranging from 0.01 for lead to1.5 for zinc were observed. This is an indication that urban and industrial wastes discharged into the Aba river had significant effect on the ecological balance of the river.
  A.O. Ubalua and O.U. Ezeronye
  The role of cassava peel as a cheap carbohydrate source capable of supplying adequate calories to Tilapia fish (Oreochromis niloticus) fingerlings with improved protein value through fermentation with biomass from palm wine and other protein sources were investigated. The protein content of the cassava peel was enhanced by fermentation using a mixed culture of bacteria (Lactobacillus plantarum and Leuconostoc mesenteroides) and yeast (Saccharomyces cerevisiae and Schizosaccharomyces pombe). Microbial population increased with microbial succession after 3 days of fermentation and the crude protein value of the fermented cassava peels increased from an initial value of 5.4 to 17.2%. The decrease in pH from 7.2 to 3.4 enhanced the growth of lactic acid bacteria thus inhibiting proteolysis resulting from the activity of the competing clostridial species. The specific growth rates of the fishes appeared to decrease with the progression of the feeding experiment and their weight increased with 70 and 50% for the 8 weeks of the study with respect to soybean and the fermented cassava peel and compared favourably with the control (fish meal) which is 60%. Growth performance results showed that the fishes performed better on soybean meal than on the other diets, though, the observed differences were not statistically significant (p>0.05).
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