University of Khartoum

Identification of bacteria isolated from mastitic milk of cattle, sheep and goats in Khartoum Stateand study of antimicrobial sensitivity

Identification of bacteria isolated from mastitic milk of cattle, sheep and goats in Khartoum Stateand study of antimicrobial sensitivity

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Title: Identification of bacteria isolated from mastitic milk of cattle, sheep and goats in Khartoum Stateand study of antimicrobial sensitivity
Author: Derhim, Shawgi
Abstract: The aim of the study was isolation and identification of bacteria associated with mastitis of cattle, sheep and goats. A total of 90 milk samples were collected from animals with mastitis in different areas in Khartoum state. The samples were collected during the period between October 2002 to April 2003. Milk samples were collected from cattle, sheep and goats before treatment and after treatment. The antibiotics used for treatment were Neomicin, Gentamicin, Cloxacillin, Amoxacillin and Rubrocilline. The Gram-positive bacteria isolated from mastitic milk of cattle, sheep and goat collected before treatment were Staphylococci spp (Staphylococcus aureus, Staphylococcus saprophyticus, Staphylococcus wareneri, Staphylococcus simians, Staphylococcus capitis, Staphylococcus simulans and Staphylococcus carnosus ), Streptococci spp ( Streptococcus porcinus, Streptococcus faecalis, Streptococcus uberis, Streptococcus agalactiae and Streptococcus dysgalactiae), Bacillus spp (Bacillus alvei, Bacillus subtilis, Bacillus megaterium and Bacillus cereus ) and Corynebacterium spp (Corynebacteria bovis, Corynebacteria haemolyticum and Arcanobacterium pyogenes ). The Gram-negative bacteria isolated from mastitic milk of cattle, sheep and goats collected before treatment were Klebsilla pneumoniae and Pseudomonus areuginosa . The Gram-positive bacteria isolated from mastitic milk of cattle, sheep and goats collected 3 days after treatment were Streptococcus zooepidemicus and Bacillus pantothenticus. The Gram-negative bacteria isolated from mastitic milk of cattle, sheep and goats collected 3 days after treatment were E.coli, Bacteroides vulgatus, Logionella pneumophila, Actinobacillus lignieresii, Pasteurella multocida, Morgenella morganii and Enterobacter aerogenes. The Gram-positive bacteria isolated from mastitic milk of cattle, sheep and goats collected 7 - 10 days after treatment were Staphylococci spp (Staphylococcus aureus, Staphylococcus saprophyticus, Staphylococcus sciuri, Staphylococcus hominis, Staphylococcus haemolyticus, Staphylococcus caseolyticus, Staphylococcus epidermidis Staphylococcus cheromogens and Staphylococcus hyicus), Streptococci spp ( Streptococcus pyogenes) and Bacillus spp (Bacillus pentothenticus ). The Gram-negative bacteria isolated from mastitic milk of cattle, sheep and goats collected 7-10 days after treatment were Klebsiella pneumoniae, Pasteurella multocida , Acinetobacter lwoffii and Proteus penneri. Antibiotic sensitivity test were done for all isolated strain. The majority of the isolates were sensitive to Chloramphenicol ( 80% ) and Gentamicin ( 69.1% ), but they were resistant to Penicillin ( 72.7% ) and Ampicillin ( 90.9% ).
URI: http://hdl.handle.net/123456789/7982
Date: 2015-04-01


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