Book on Natural Sheep Care
Natural Sheep Care

Book on Compendium of Veterinary Products
Compendium of
Veterinary Products

Book on Greener Pasture on Your Side of the Fence...
Greener Pasture
on Your Side of
the Fence...

Book on Large Animal Internal Medicine
Large Animal
Internal Medicine

Book on Merck Veterinary Manual
Merck Veterinary

Book on Sheep and Goat Medicine
Sheep and Goat

Book on Small-Scale Livestock Farming
Livestock Farming:

Book on Storey's Guide to Raising Sheep: Breeds,...
Storey's Guide
to Raising Sheep:

Book on Veterinary Parasitology: Reference Manual
Veterinary Parasitology:
Reference Manual


CAUSE: Also referred to as "boils" this disease is caused by bacterium CORYNEBACTERIUM PSEUDOTUBERCULOSIS.

OCCURRENCE - CL occurs in sheep across the U.S. The infective bacteria reside in the environment and on the skin of sheep. Wounds caused by shearing, thorns, splinters, etc. are invaded by the bacteria which then find their way to regional lymph nodes in the body. There, they form boils, or abscesses, that become walled off by scar tissue. Infective bacteria may escape from the boils and spread the infection to other parts of the body. It would appear that the causative bacteria may be introduced into clean flocks by the way of carrier animals since all flocks are not troubled with this disease. Once introduced into the flock the disease often times affects a relatively high percentage of susceptible animals. CL is very likely spread by environmental contamination from ruptured or lanced boils by injection, and at shearing.

SYMTPOMS-CL is manifested in two forms; 1); external abscesses in superficial lymph nodes and 2); internal abscesses. Both forms may occur simultaneously and frequently causes gradual emaciation and eventual death. Sheep experiencing only external abscesses may show no other symptoms and heal spontaneously.

TREATMENT- Antibiotics have been of little value in treating CL. The infective bacteria, walled off inside abscesses, are inaccessible to blood carrying antibiotics. Surgical drainage of abscess must be performed so as to avoid contamination of the environment with the contents of the abscess. It has been recommended that a large gauge needle be inserted into the abscess, some of the pus withdrawn into the syringe, and formalin injected into the abscess from a second syringe. After allowing several minutes for the formalin to sterlize the contents of the lesion, the abscess is lanced, carefully collecting the drainage in a receptacle. Another recommendation calls for surgical removal of the entire abscess intact.

Care and Feeding of Your Lamb, TVSP
Click on the links below to learn more
Acidosis Bloat Bluetongue Care
Copper Toxicity Cough Dewormers Diarrhea
Feed Feed Hay First Feed Rations Foot Rot
Limping Parts of a Sheep Pneumonia Polioencephalomalacia
Polyarthritis Rectal Prolapse Sheep Gestation Table Sheep Selection Checklist
Sick Lamb Snotty Nose Sore Mouth Tails - Dock
Urolithiasis  Market Lamb
Yield Grade Table


©Copyright 1999 - 2016 Treasure Valley Sheep Producers.  All rights reserved.
Web design by: Treasure Valley Sheep Producers and Mystical Sheep