Abstract :
Integrated Quails Farm in the central region of Saudi Arabia with capacity of (50,000) birds a week was infected with SalmoneIIa. Heavy mortality was up to 70% seen in Japanese quails, typical clinical signs of SalmoneIIosis were seen on the birds such as somnolence, weakness, nervous symptoms of torticolis, slight paralysis on some birds. Random samples collected from 14 houses including two breeding flocks and one rearing flock with different ages, were sent to the Poultry Disease Laboratory and subjected to bacteriological examination. Post-mortem examination showed characteristics lesions of necrotic foci in the liver, congestion of the lung, slight enlargement of spleen, acute enteritis. Consequently, salmoneIIa was detected in 50% of the examined birds. Two distincted SalmoneIIa Serogroups B (14 isolates) representing 63.64% and C1 (8 isolates) representing 36.36%, were isolated from Heart, Liver, Intestines, and Cloacal swab of the infected birds. Cox technique (rinse method) was carried out to isolate SalmoneIIa from the processed quail carcasses of the same farm. Consequently, salmoneIIa group Band C1 were isolated from the dressed quails on several occasions. Serotyping of the isolates revealed the foIIowing serotypes: Salmonella. Typhimurium, Salmonella. Virchow, Salmonella. Meleagridis, S. of group B 4, 12: 1 : - and S. of group C1 6,7: 1 : 1. Susceptibility test was carried out on the isolates against twelve antimicrobial drugs being used in the field of poultry.
