Seasonal Bacteriological Studies on Normal and Pneumonic Lung of Sheep and Goats in Suez Canal Area

Abstract

Pneumonia is the most important cause of losses in sheep and goats although the confliction and confusion of the cause of pneumonia, the bacterial causes often are considered the original causative agent so it was necessary to survey the bacterial causes of pneumonia in order to reduce the losses resulted due to pneumonia in sheep and goats.

In this study 915 samples collected from diseased, apparently healthy and dead sheep and goats and revealed that 702 samples were positively infected at a percentage of (76.7%) and it was found that bacteria isolated from apparently healthy, diseased and dead sheep were at a rate of 48.9%, 99.1% and 96.2% respectively. While apparently healthy, diseased and dead goats at ratio of 42%, 98.6% and 100% respectively. The obtained bacterial isolates are classified as follows :

a- Bacteria isolated singly

The most prevalent bacterial isolates were Escherichia coli

238 at a rate of (26.1%), Staphyloccoccus aureus 61 (6.6%), Pasteurella multocida 55 (6.01%), Pasteurella haemolytica 45 (4.9%), Pseudomonas aeruginosa 38 (4.2%), Actinomyces avis 25 (2.7%), Actinomyces pyogenes 22 (2.4%), Klebsiella pneumoniae 21 (2.3%), Proteus spp. 13 (1.4%) and Streptococcus pneumoniae 9 (1 0.98) b- Mixed bacterial isolates

Staphylococcus aureus isolated combined with Actinomyces ovis 8 (0.9%), Staphylococcus epidermidis with Escherichia coli 24 (2.6%), Staphylococcus epidermidis with Actinomyces ovis 13