Observations on a respiratory disease outbreak in weaned suckled calves

Abstract
Outbreaks of respiratory disease with a similar temporal pattern occurred in both atumun and spring-born groups of suckler calves transported from all parts of Great Britain to a breed evaluation center. Thirteen percent (18 of 137) of the autumn-born group and 15% (22 of 147) of the spring-born group were treated for respiratory disease. Most disease occurred within 3 wk of an animal''s entry to the center. No disease occurred within certain breed groups of both age groups. There was a tendency for distance travelled to affect the need for treatment.