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Colibacillosis (E. coli scours, watery mouth)
-economic importance
-crowding and unsanitary facilities
-habitually used lambing sheds without cleaning
-lambs 2-3 days of age affected with diarrhea, 2-6 weeks of age septicemia
-more common in lambs born from late winter to early spring
-spread from feces, contaminated water and feed supplies
-feces is semifluid and yellow to gray in color, occasional blood and mucus, abdominal pain, hunched up
Information above from Small Ruminant Clinical Diagnosis and Therapy -University of Minnesota

E-Coli Polyarthritis (Colibacillosis)
Lamb temperature of 105 to 107 F.
Lambs vary in age from 2 to 6 weeks
Lambs show signs of central nervous system involvement
(which may cause the lamb to move or walk stiffly with uncoordinated movements.)
It also may hold it's head to one side.
The bacteria gain entrance orally from contaminated teats, bedding the first few hours and after birth.

Colibacillosis  Infection with Escherichia coli usually causes white scours, which are very serious.  White scours can result in rapid dehydration, toxemia, and death it not treated immediately.  In most cases, this infection is caused by filth, such as poor sanitation, or a lamb sucking on a dirty wool tag from an uncrotched ewe.  The current antibiotic of choice for lamb scours is an oral spectinomycin.

Newborn lambs suffering from Watery Mouth also may develop abomasal bloat.  This problem may be a result of a slow passage of milk through the gut.  This slow-down results in an accumulation of gas in the abomasum (stomach).  It's also believed that the slow-down prevents the expulsion of the meconium (fecal tar) found in the gut at birth.

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This page was last updated on: January 6, 2008