Orajaka L J, Mohan K
Avian Dis. 1985 Jul-Sep;29(3):583-9.
Dead-in-shell chicken embryos from two commercial hatcheries in Anambra State of Nigeria were investigated for isolation of aerobic bacteria. For this purpose, 79 pooled samples containing 632 dead-in-shell chicken embryos were cultured. From these samples, 23 isolates of Escherichia coli and 25 isolates of Staphylococcus aureus were recorded. Other bacterial species isolated included Micrococcus sp. (fifteen isolates), Klebsiella sp. (thirteen isolates), Pseudomonas sp. (nine isolates), and Proteus sp. (seven isolates). Salmonella, Streptococcus, and Mycoplasma spp. could not be isolated. A high incidence of pathogenic strains of bacteria from dead-in-shell chicken embryos was observed. This suggests that the isolates may have contributed to the embryonic mortality and reduced hatchability recorded in the farms investigated.
对尼日利亚阿南布拉州两家商业孵化场的死胚鸡进行了需氧菌分离调查。为此，对79个包含632个死胚鸡的混合样本进行了培养。从这些样本中，记录到23株大肠杆菌分离株和25株金黄色葡萄球菌分离株。分离出的其他细菌种类包括微球菌属（15株分离株）、克雷伯菌属（13株分离株）、假单胞菌属（9株分离株）和变形杆菌属（7株分离株）。未分离出沙门氏菌、链球菌和支原体属。观察到死胚鸡中细菌致病菌株的高发生率。这表明这些分离株可能导致了所调查农场中记录的胚胎死亡率和孵化率降低。
