Vol. 10, Special Issue 6 (2021)

Author(s):
Udhayavel Shanmugasundaram, Gopala Krishna Murthy TRG, Gowthaman V, Senthilvel K, Saranya S and Naagarjun A

Abstract:
The objective of the present study is to isolate Salmonella enterica associated with egg peritonitis in commercial layer birds and to determine their in vitro sensitivity to various antibacterial agents. Samples were collected from the birds which showed egg peritonitis lesions during necropsy carried out in Poultry disease diagnosis and surveillance laboratory, Namakkal from the period of May 2019 to February 2020. Salmonella enterica was isolated and identified by standard bacteriological techniques. The in vitro antibiotic sensitivity test with different antibiotic discs was carried out. Out of 50 samples screened, 4 isolates of Salmonella enterica were isolated. The in vitro antibiotic sensitivity test indicated that all the isolates (100%) were sensitive to Levofloxacin, Ciprofloxacin and Co-Trimoxazole. All the isolates showed resistance to Tylosin, Gentamicin and Chlortetracycline. This study revealed that Salmonella enterica also associated with egg peritonitis in commercial layer birds and the drug Levofloxacin and Ciprofloxacin are highly effective.