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ABSTRACT
Outbreak of Omphalitis was reported in the week old ducklings at a research duck farm of Regional centre. The clinical signs were swollen abdomen contains cheesy caseous content into yalk sac, oedema, redness, few cases of inflammation at abdomen, septicaemia, showed little interest in food and water resulting gradual severely dehydrated. The isolation of Staphylococcus aureus from Omphalitis of 20 ducklings. Of the 20 Omphalitis cases 13 were khakis and 7 were of white pekins. The isolation and identification of the isolates were accomplished by cultural, microscopic and biochemical characterization. The antibogram showed that the isolates were highly sensitive to Agithromycin, Ciprofloxacin, Cloxacillin, Enrofloxacin, Gentamicin and Floxidin. They were moderately sensitive to Chloramphenicol, Ofloxacin, Furazolidon and Doxicillin but were resistant to Neomycin, Kanamycin and Sulphamethizole, Cefixime/clavulimc acid.
Keywords: Duckling, infection, Omphalitis, Staphylococcus aureus, Isolation
Omphalitis is also known as "Mushy Chicks" is an inflammatory condition of navel (umbilicus) involvement in birds largely due to some common infection of E.coli, Streptococci spp., Proteus spp., Enterococci spp, Bacillus are common. It may be both single, or mixed infection for Omphalitis. Both ascending and descending infections cause the condition. The condition prevails both in chicken, ducks and other domestic birds during early neonatal and embryonic life. The number of infections in eggs is not very high (0.5-6%) but the embryonic death occurs at late incubation period to neonatal week old ducklings. Excess humidity and contaminated incubator also aggravate the condition (Shringi et a!., 2014). As the disease is infectious, yolk being the rich sources of nutrients help in multiplication of bacteria and histological disturbances at naval hamper absorption of yolk. The clinical signs of the condition are swollen abdomen, oedematous naval area, redness, inflammation with occasional abscession at naval. Distended abdomen with engorged blood vessels under go lysis and wetness leading to "Mushy duckling disease similarly it is called "Mushi chick disease" in chicken. Other associated symptoms are dehydration, visceral gout, emaciation, diarrhoea with vent pasting, increased yolk and mild inflammatory changes in wall of yolk sac. In duck eggs, soil contamination with wet litter may take up the infection during incubation causing Omphalitis. Very few reports in duck omphalitis have been reported. However, some report on duckling Omphalitis available (Shrama and Kausik, 1986; Mishra,...