Alaa Afef * (1), Ali Nisafi (1), Abd alnaser Al-Omar (2) and Sheiam Sulaeman(3)
(1). Postgraduate Student, Department of Animal Production, Faculty of Agriculture, Tishreen University, Syria.
(2). General Commission for Scientific Agricultural Research. Agricultural Research Hama.
(3). Department of Food Science, Faculty of Agriculture, Tishreen University, Syria (*Corrsponding author: Dr.abd alnaser –Al-omar. E-Mail: abdnaser64@gmail.com).
Received: 07/04/2020 Accepted: 09/06/2020
Abstract:
301 samples of birds suspected of being infected with Escherichia coli were collected at various broiler farms in the Tartous Governorate during the years 2017,2018 and 2019 to reveal the presence of Escherichia coli, underwent dissection, recorded pathological symptoms and performed bacteriological tests. The results showed that the incidence of Escherichia coli was 52.82% of total samples, 53.1% of heart samples and 57.8% of liver samples, and the incidence rate for poultry in (Amrit, Mishrifah Kahlah, Deir al-Hajar , Ruwais al-Hayek , Mushta al-Helu and Bait al-Khatib respectively (90%,86.2%,84%,70.5%,52.2% and 25%), while the farms in Jditi, Beit Juha, Shabat and Beit Al Sheikh Younis were not registered any infection, as the rate of infection during winter season reached 64.63%, while no infection was recorded during summer season, and the infection was recorded at all ages, as the rate during the third and fourth week was 59.2%, and at the age of 4 weeks 50.2% and the first and second week 49.7 %. A significant differences were recorded in the different measurements of the carcasses taken from the suspected birds of the two farms located in Amrit and Jditi ,where Jditi farm outperformed the Amrit farm in each of the carcass weight , chest circumference – thigh circumference – chest weight – thigh weight and that in a very high statistical function (P< 0.001). This study necessitates the combination of all health and food care operations, avoiding risk and stress factors, applying health conditions and biosecurity measures to reduce the infection rate to a minimum
Keyword: Escherichia coli , meat chicken farm , carcasses.