R. Stehmann et al., AIRBORNE BORDETELLA-BRONCHISEPTICA STRAINS FROM PIGSTIES FOR EXPERIMENTAL INTRANASAL INFECTION OF PIGLETS, Monatshefte fur Veterinarmedizin, 48(3), 1993, pp. 143-148
Infection experiments were applied to low-germ piglets and SPF pigs fo
r virulence testing of B. bronchiseptica strains isolated from indoor
atmosphere of pigeries. Pathologic-anatomic pneumonia-related alterati
ons and rhinitis were recorded from six out of seven low-germ piglets.
Atrophy of the nasal conchae was additionally exhibited by two animal
s only. Rhinitis and moderate atrophy of nasal conchae were positively
detected by pathologic-anatomic examinations of the infected SPF pigl
ets. Interstitial pneumonia, peribronchitis and bronchiolitis were his
tologically recordable from the lungs. The investigations reported in
this paper provided evidence to the effect that airborn B. bronchisept
ica strains isolated from livestock houses, following nasal infection,
were capable of colonisation on nasal mucosa in piglets at different
age levels and were also capable of penetration of the organism to cau
se pathologic-anatomic alterations of differentiated severity of nose
and lung.