Cultural monitoring was used to study the presence of Pseudo monas aeruginosa in 2200 non fertile eggs, dead in shell embry os, baby chicks and ovarised of dead parents. Pseudomonas aeruginosa could not be isolated from any of 420 non fertile eggs or 210 ovaries of dead parents, while 10 and 3 isolates were isolated respectively from 820 dead in shell embryos and 750 baby chicks. The 13 Ps.aeruginosa isolated strains were 100% sensitive to gentamycin, while less sensitive or resistant to the other used 13 antibiotics.
In experimental infection the isolated organism was pathogenic to one day old chicks causing symptoms and mortality.