Investigation Into Prevalece Of Escherichia coli Infection And Some Other Diseases In Broiler Farms In Sulaimani District

M. Shareef, Jalal; M. Saeed, Nahla

	Investigation Into Prevalece Of Escherichia coli Infection And Some Other Diseases In Broiler Farms In Sulaimani District
The Iraqi Journal of Veterinary Medicine (IJVM)
Article 1, Volume 29, Issue 1, 2005, Pages 165-178 PDF (0 K)
Authors
Jalal M. Shareef; Nahla M. Saeed
Abstract
In regard to broiler diseases in Sulaimani district, different factors like environmental temperature, humidity, wind velocity, the source of hatchery eggs and day-old chicks were studied. The study involved the history, some concurrent diseases, methods of protection against viral diseases, clinical signs, post mortem lesions, isolation and identification methods (cultural and biochemical) and sensitivity test. The 4th and 5th weeks ages were the exposed ages for respiratory diseases, precisely Escherichia coli infection. The temperature factor (high and low) was among the most prominent predisposing factors, since 39% and 30% of E.coli isolates obtained through winter and summer seasons successively. The low environmental temperature (5.2˚C) accompanied by high humidity rate (72.3 %), caused high number of infections. The high temperature (32.6 ˚C), with lower rate of humidity (26.2%); has also increased the number of infections. Field investigation including 12 months survey was conducted in the present work. The survey involved 1256 batches from broiler farms, which involved (11,564,385) chicks. A total of 946 (75%) batches showed respiratory signs, including 709 E.coli infected batches. Other infections by Salmonella and Proteus were also discovered. The sensitivity test of 200 E.coli isolates revealed that 165, 156 and 118 isolates were sensitive to ciprofloxacine, gentamycin and chloromphenecol respectively. While 182, 181, and 175 isolates were resistant to flumequine, ampcillin and lincomycin consecutively.

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