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KMID : 0359319960360010131
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Korean Journal of Veterinary Research
1996 Volume.36 No. 1 p.131 ~ p.142
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Characterization of the drug receptors responsible for intestinal contraction in Israeli carp
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Abstract
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The effect of relative humidity in swine house on swin pleuropneumonia was examined in piglets experimentally infected with Actinobacillus pleuropneumoniae serotype 5.
A total of 20 piglet were grown under 30∼40%, 41∼50%, 51∼64% and 65∼80% relative humidity chambers after intratracheal inoculation of A pleuropneumoniae.
Characteristic fibrinous pleuropneumonia was observed in the pigs grown at the low relative humidity groups.
The detailed results were as follows :
1. Growth performance and environment conditions were lower than high relative humidity groups.
2. Characteristic histopathological findings were fibrinous pleuritis and pneumonia accompanied congestion, hemorrhage, thrombosis and edematous change.
3. Antigenic distribution of inoculated bacterium was found mainly in alveolar macrophages or accumulated foci of macrophages adjacent to necrotic area.
4. Characteristic electron microscopic findings were proliferation of type Ⅱ pneumocyte with increased lamella bodies and activated alveolar macrophages with pseudopods and widening of interstitium.
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