چكيده لاتين :
Embryonic death is known as are of the most critical financial loss of Ostrich farms. Bacterial contamination of fertile eggs is the most common cause of this problem. The majority of bacteria that were cultured from mortalities in ostrich hatcheries included the ubiquitous bacteria. A few of these bacteria can cause inflammation in the reproductive tract and enter into eggs consequently. The aim of this research which has been done for the first time in the country was to study the status of bacterial contamination of ostrich hatcheries.
A total of 120 samples in a weekly manner were collected from three ostrich hatchery units during a 3 month period. After disinfection of eggsʹ shells in laboratory, the eggs were opened at their air chambers area near the flame. Then, the dead embryos were dissected and samples were reflected from different organs Detection of isolates was done using standard bacteriological techniques and based on their biochemical specifications.
Bacterial contaminations were detected in 56 (Z46.6) out of 120 samples. More than one type of bacteria was detected in 25 (44.6/) contaminated samples. The status of observed bacteria in samples was as follows: Pseudomonas spp. (23.3/), Escherichia coli (20/), Klebsiella spp. (7.5/), Bacillus spp. (5.8/), Citrobacter spp. (5/), Staphylococcus spp. (5/), Proteus spp. (3.3/), Aeromonas spp. (0.8/), Enterobacter spp. (0.8/). No bacterial aritamhartionsweredeo^dh 53.3/ of 120 samples.
In conclusion, itisrecommerxledtoredurethe<^^ of ostrich fertile eggs sufficient attention should be paid to the sanitary conditions and managerial stan dards in breeder flocks during collection and preservation of fertile eggs and in hatchery facilities. et.J.of Islamic.Azad. Univ., Garmsar Branch. 5,2:129-134,2009-2010.
