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Objective: This research was carried out to isolate lactic acid bacteria from dairy products, to examine the isolated lactic acid bacteria for the production of bacteriocin, its purification as well as its use as supplement in poultry nutrition to improve the growth performance of the birds. Methodology and results: Five (5) samples of cow milk and five (5) samples of fresh yoghurt were procured from the market; each sample was serially diluted to the third fold and plated on De Man Rogosa Sharpe agar (MRS) agar. Pure discrete colonies of Lactobacillus spp were isolated and sub-cultured on MRS broth. Lactobacillus spp isolated from Cow Milk and Fresh Yoghurt was screened using agar well diffusion. Lactobacillus isolates which showed high zone of inhibition against the test organisms (Staphylococcus aureus and Escherichia coli) were designated positive. These isolates were centrifuged at 20,000 rpm (≤40C) for 30 min and their supernatant was adjusted to pH of 7.1 with Na2CO3 to remove lactic acid effect, before filter sterilization using membrane filter (0.2μm). Five (5) mg/ml catalase was added to eliminate peroxides effect. The solution was tagged as bacteriocin crude extract (BCE) which was infused into the poultry feed. Ten (10) three weeks old chicks were separated into two groups (5 each). “Group A” as the control and “Group B” as test. The test chicks had 5ml of bacteriocin infused into their daily feed while the control chicks were fed without any infusion of bacteriocin in their feed. The chicks were weighed every seven (7) days to compare the weight gain between the control and test chicks. At the end of the study, it was found that the test chicks weighed 900g when compared to the control chicks, which weighed 830g. Conclusion and application of results: This therefore means that bacteriocin produced by lactic acid bacteria aids in the weight gain of poultry. This suggests that bacteriocin could be considered a major growth booster in poultry feed and should be applied in its feed formulation. Keywords: Bacteriocin, Cow milk, Fresh yoghurt, Lactic Acid Bacteria, Lactobacillus

This study was to determine the bacteria that are prevalent in Urinary tract infections and the sensitivity of organisms isolated from the urine of adolescent and adult women of 8- 52 years old in Ogbete Coal camp in Enugu metropolis, south east Nigeria. A total of 218 individuals, both in and out patients were investigated, 197 (90.3%) women were diagnosed for Urinary tract infections. Therefore, incidence of UTI were prevalent in the age groups of 13-17 and 18-22, with P value (p=0.047 and S.D of ± 5.6). The microorganisms implicated in infection were bacteria, fungi, yeast and protozoa. Among the bacteria, two were identified as Gram positive cocci i.e. Staphylococcus aureus and Staphylococcus saprophyticus, while Gram negative bacilli were Escherichia coli, Klebsiella, Proteus, Pseudomonas aeruginosa. Yeast like fungus Candida albican, protozoan (Trichomonas vaginalis) was also identified. The isolated organism which was prevalent was Staphylococcus aureus (48.2%); followed by Escherichia coli (34.5%). Also, Pseudomonas aeruginosa, Proteus and Klebsiella were isolated. Factors responsible for frequent cases of Urinary tract infections among diagnosed women include shortness of urethra among the females, lack of personal hygiene, sexual intercourse, socio economic challenges in various homes and others. Sensitivity profiles revealed that Augumentin was highly susceptible to Staphylococcus aureus (65%) while Escherichia coli were highly resistant to commonly used drugs such as Ampicillin, and Cloxacillin while Gentamycin was the most active against bacteria isolates.