This investigation consisted of two groups of calves showing diarrhoeal syndrome, severely dehydrated Four animals, moderately dehydrated (Nine animals). Seven apparently healthy animals served as control. This investigation was carried out on an colibacillosis outbreak in the new born calves from birth up to twelve weeks of age in a Governmen tal farm at the New Valley governorate.
Slight hypoproteinemia was observed in the moderately dehydrated calves, while hyperproteinaemia were detected in the severely dehydrated calves. Hypoglycaemia were evident in both classes of calves. It is suggested that this may have been a contributory in their mortality.
A slight increase in serum creatinine and urea nitrogen in the moderately dehydrated calves and an accompanied severe rise was detected in the severely dehydrated conditions.
Slight hypoelectrolytaemia and hyperelectrolytaemia were observed in the moderately and severely dehydrated calves respectively. It is were found upon serotyping.