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Herd and health management factors associated with
clinical caseous lymphadenitis in small-holder meat goats,
Northeastern Thailand
1
Suteekan Thongkwow , Natchanon Poosiripinyo , Nuttapon Pongkornkumpon ,
1
1
Kwankate Kanistanon , Sarinya Rerkyusuke 3,4*
2
2
1 DVM program, Faculty of Veterinary Medicine, Division of Physiology, Division of Livestock Medicine,
3
4 Research Group of Animal Health Technology, Faculty of Veterinary Medicine, Khon Kaen University, Khon Kaen, 40002, Thailand
*Corresponding author Email: sarinyare@kku.ac.th
Introduction
Caseous lymphadenitis (CL) is a zoonotic disease caused by the
bacterium Corynebacteium pseudotuberculosis (1). Clinical findings
in infected animals presenting with abscess on superficial lymph
nodes especially on parotid, prescapular lymph node and
reproductive organs such as udder and testis (Fig 1.) (2). The aim
of this study was to investigate the herd and health management
factors associated with clinical caseous lymphadenitis among
herds with and without clinical CL in meat goat small holders in
Northeastern Thailand.
Fig 1. Locations of enlarged lymph nodes or abscesses in caseous
Materials and Methods lymphadenitis cases. The enlargement of parotid (a), prescapular (b), and
popliteal (c) lymph nodes is observed. Infections of the reproductive organs:
mastitis (d) and orchitis (e). (2)
Study area & Questionnaires Clinical examination
Study design
Study area (34 farms) General information Health management
• History taking
• Chaiyaphum (23) • Objective of farming • Quarantine
• Visual inspection
• Khon Kaen (9) • Time herd established • CL vaccine
• Palpation
• Sakhonnakhon (1) • Infrastructure : fence, barn • Presented of clinical CL in herd
• Udonthani (1) Breed and Herd size • Knowledge about CL
Herd size • Breed (Pure, Mixed breed) • Mother rearing system
• breeder < 200 goats/herd • Total animals (Buck/Doe ratio) Biosecurity
Study design Herd management • Presence of slaughter house and live Statistical analysis
• Presented clinical CL (19) • Space of barn livestock markets within 5 km
• Absented clinical CL (15) • Feeding management • Sanitation : waste and carcass • SPSS® software (SPSS Inc,
Duration • Cleaning and maintenance • Use of disinfectants 19.0.2, 2010)
• December 2018 to November 2019 • Grouping goat by age • Pest control
Results and Discussions Acknowledgement
The final multivariate logistic analysis showed that significant risk factors for clinical CL This work was financially supported by the Bureau of Academic
were insect vectors in the barn (odds ratio: 15.262; 95%CI: 1.128-206.510) (p<0.05) and pure Service, Khon Kaen University, and Research Group of Animal
breed (odds ratio: 10.354; 95%CI: 1.070-100.203) (p<0.05). Health Technology, Faculty of Veterinary Medicine, Khon Kaen
University. The authors also would like to thank the farmers for
The results of this study are consistent with a previous study that indicated insect vectors their cooperation.
can be vector and cause spread of CL in herds (3,4,5). Pure breed had higher risk of CL than
mixed breed (6). References
Although other factors were not significantly associated with the occurrence of CL in goat
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to this study, 80% of farmers never know CL in goat, 82% never know that it can cause N, Chalatan T, Kanistanon K, Lerk-u-suke S, Rerkyusuke S, 2019. Distribution and
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nd