Caseous lymphadenitis in goats from Borena Range Land South Ethiopia slaughtered at Luna Export Abattoir

Abstract

to estimate the prevalence of caseous lymphadenitis (CLA) in goats. Detail post mortem examination and bacteriology were applied to undertake this study. On the bases of post mortem and bacteriological results, the prevalence of caseous lymphadenitis was 15% (60/400), out of which 42 (70%), 13 (21.7%) and 5 (8.3%) were cutaneous form, visceral form and generalized form, respectively. There is statistical significance difference (P < 0.05) among the three age groups. The study revealed that as age increases the prevalence also increases. Statistical significant difference was also recorded between goats having poor and good body condition score (P < 0.05). Moreover, goats with poor body condition score seem to be more infected (24.7%) than those goats with good body condition (12.5%). In conclusion, this study has indicated the occurrence of CLA in high frequency in goats of Borena range land. Therefore, further extensive research should be conducted over all the country to determine prevalence and economic significance of the disease.

Survival Analysis of Clinical Cases of Caseous Lymphadenitis of Goats in North Shoa, Ethiopia

“…The hazard of CLA was higher ( p < 0.001) in the newborn than in the yearling age group. This result contradicts from other findings [ 10 , 21 ], where age groups below 1 year are at a lower risk. This may be due to variation in the type of study and age classification method.…”

“…The most affected superficial lymph node was the parotid lymph node. Similar results were reported in [ 2 , 10 ]. These results may be attributed to the habit of goats that tend to scratch their shoulders and heads against walls and fences or any hard objects, resulting in a high percentage of superficial parotid, mandibular, cervical, and prefemoral lymph node infection because it drains the shoulder region [ 10 ].…”

“…The current prevalence is in line with reports abroad, 19.23% prevalence by Al-Gaabary et al [ 21 ], 26% prevalence by Paton [ 22 ], and in Ethiopia 15% by Fikre and Abraha [ 10 ]. The current port is relatively higher than most reports in Ethiopia 4.7% by Molla [ 12 ], 11.7 by Abebe and Sisay [ 23 ], and 10% by Hunduma et al [ 11 ].…”

“…The current result is in line with most previous findings. C. pseudotuberculosis were the most frequent isolated bacteria of clinical CLA abscess [ 10 , 21 , 23 , 25 , 27 ]. The present result of 2 C. ulcerans based on the Biolog test is the first report in Ethiopia.…”

“…Unfortunately, it is the internal abscesses that are fatal, whereas external abscesses are generally responsible for disease transmission [1]. In Ethiopia, recent findings indicate that 15% prevalence of caseous lymphadenitis was reported from goats slaughtered in Luna Export Abattoir originated from district area of Borena Range Land [10] and 10% prevalence of local abscess was also reported in Boer goats of Adami Tulu Agricultural Research Center Nucleus site being the major disease next to GIT parasites, keratoconjunctivitis, ticks, and respiratory problems [11]. 4.7% prevalence of caseous lymphadenitis was also reported from the Boer goat breeding station of Southern Ethiopia [12].…”