Abstract
The study was conducted in Maiduguri, North - Eastern Nigeria to assess the bacterial flora, gross and histopathological lesions of caprine pneumonic lungs. A total of 500 caprine pneumonic lung samples from goats slaughtered at the Maiduguri municipal abattoir were collected and examined. The results of the bacterial isolates showEscherichia coli (86.6%), Mannheinmia haemolytica (54.4%), Klebsiella pneumoniae(52.8%), Streptococcus pyogenes (19.6%) and Staphylococcus aureus (17.6%). Mixed infection of S. aureus and S. pyogenes was seen in 41(8.2%), E. coli and S. aureus in 36 (7.2%) and K. pneumoniae, S. aureus and S. pyogenes in 29 (5.8%). The gross lesions of pneumonic lungs identified were congestion, consolidation and exudation. Three types of pneumonia were identified based on the histopatholological examinations of 25 pneumonic lungs randomly selected from the 500 lungs samples collected which included: bronchopneumonia 12 (48%), interstitial pneumonia 8 (32%) and Cuffing pneumonia 5 (20%). E. coli and M. haemolytica were the bacteria most frequently isolated from lungs with lesions of bronchopneumonia while S. pyogenes and S. aureus were more frequently isolated from lungs with lesions of interstitial pneumonia. There was no statistical association (P>0.05) between the lung lesions observed and the associated bacterial isolates. Key words: Caprine, pneumonia, bacterial flora, pathology, Nigeria.
Highlights
The ability of the goat to thrive in harsh conditions, its relatively small size and its low cost brings it within the reach of the low income households in Nigeria (Fajeminsin, 1991)
E. coli and M. haemolytica were the bacteria most frequently isolated from lungs with lesions of bronchopneumonia while S. pyogenes and S. aureus were more frequently isolated from lungs with lesions of interstitial pneumonia
The least bacteria isolated were K. pneumoniae which have been isolated with S. aureus and Streptococcus pyogenes in 29 (5.8%) of the samples examined
Summary
The ability of the goat to thrive in harsh conditions, its relatively small size and its low cost brings it within the reach of the low income households in Nigeria (Fajeminsin, 1991). In Nigeria, apart from poor management which includes inadequate and unbalanced feeding, high disease prevalence associated with high neonatal mortality constitutes a major obstacle to the promotion of large scale holding of livestock (Majiyagbe and Lamorde, 1997). Diarrhoea and respiratory diseases (pneumonia) were reported as the major causes of mortality in goats (Ameh et al, 2000; Ackermann and Brodgon, 2000). In Nigeria it has been estimated that sheep and goats provide 35% of the total meat needs (Obi, 1997). In spite of their large number and enormous contribution to the national economy, goat production is not well developed due to inadequate nutrition, poor management and prevailing diseases
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