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Title: Patterns of Mycoplasma hyopneumoniae infections in Belgian farrow-to-finish pig herds with diverging disease-course
Authors: Vicca, Jo ×
Maes, D
Thermote, L
Peeters, J
Haesebrouck, F
de Kruif, A #
Issue Date: 2002
Publisher: Pavey
Series Title: Journal of Veterinary Medicine B vol:49 issue:7 pages:349-353
Abstract: Patterns of Mycoplasma hyopneumoniae (Mh) infections were
investigated in five clinically infected herds and in five herds
subclinically infected with Mh. In the clinically infected herds,
housing and management conditions were good whereas these
conditions were poor in the subclinically infected herds. In
each herd, serum antibodies against Mh were detected in pigs
of different ages and nasal swabs were taken for Mh detection
using nested PCR (nPCR). The percentage of seropositive pigs
in the clinically infected herds increased from 8% in pigs of
9 weeks to 52% in pigs of 18 weeks and seroconversion was
most shown between 12 and 15 weeks. In the subclinically
infected herds, the percentages increased from 2 to 24% and
most of the pigs became seropositive between 15 and
18 weeks. The percentage of nPCR positive pigs at 6 weeks
was 16 and 0% in the clinically and subclinically infected
herds, respectively. The results demonstrate that the seroprevalences
were higher in the clinically infected herds and that
most of the pigs became infected with Mh at a younger age. It
can be concluded that additional factors different from housing
and management, like differences among Mh strains, may
determine the infection pattern of Mh and the clinical course
of the infection.
ISSN: 0931-1793
Publication status: published
KU Leuven publication type: IT
Appears in Collections:Studiegebied Biotechniek Odisee
Division of Livestock-Nutrition-Quality (-)
× corresponding author
# (joint) last author

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