Vershima Jose Addy, Terkimbi Jonathan Kabough, Haruna K. Mohammed, Ibrahim Aliyu, Microbiological Assessment of Abattoir Effluent on Water Quality of River Katsina-Ala, Nigeria, Volume 39, International Letters of Natural Sciences (Volume 39)
    Gram-negative bacteria isolated from the abattoir effluent on surface water of River Katsina-ala in rainy and dry seasons were <i>Escherichia </i><i>coli; Klebsiella spp; Proteus vulgaris; Salmonella typhi</i> and Gram-positive bacterium isolated was <i>Streptococcus faecalis.</i> In rainy season, the lowest mean bacterial count was from <i>E.coli</i> (0.0067+0.031 CFU/ml) and highest mean bacterial count from <i>Salmonella typhi </i>(0.0262+0.0079 CFU/ml). In the dry season, lowest mean bacterial count was from <i>Proteus vulgaris</i> (0.0081+ 0.0047 CFU/ml) and the highest from <i>Streptococcus faecalis </i>(0.0097+ 0.05 CFU/ml). The presence of <i>Escherichia coli</i> indicates possible faecal contamination. The results revealed that bacterial load was within the accepted maximum limit by WHO (2004); nevertheless, the disease causing bacteria pose threat to human health when water from the river is consumed without treatment.Keywords: microbiological; abattoir; water quality; effluent; River Katsina-ala
    Abattoir, Effluent, Microbiological, River Katsina-Ala, Water Quality