Economic losses caused by paratuberculosis in a dairy herd: case report
Körmendy, B.; Kopál, T.; Bálint, T.; Szilágyi, M.; Béki, L.
Acta Veterinaria Hungarica 37(1-2): 45-53
1989
ISSN/ISBN: 0236-6290 PMID: 2627002 Document Number: 337368
The impact of clinical paratuberculosis in a 500 cow Jersey .times. Holstein dairy herd of loose housing system was followed up for three years. There was an increasing fall in annual milk production, namely 49, 474, and 1030 litres per cow, a decrease in the average age from 63.9 to 57.0 months, and of feed conversion from 60 to 39%. The effect of certain management deficiencies, existing throughout the study, is discussed.