Summary
Samenvatting Toegepaste Dierkunde: dieren: enkel lintwormen!
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Samenvatting Toegepaste Dierkunde: dieren: enkel lintwormen!
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Toegepaste dierkundeRunderworm
Cyclus
- Mens: rijpe leden met duizenden eieren
- Bevruchting (paring) tussen verschillende leden
o Vorming van embryo’s duizenden per lid
o Schaal rond ei
- Rijpe leden verlaten het lichaam
- Leden rotten weg – eieren blijven over
o Opname door rund
Opname door rund:
- Bemesting van weiden met uitwerpselen die eieren bevatten
- Overstroming van weiden door rivieren waarin riolen uitmonden
Eischaal verteerd in darm rund
- Larve komt vrij
Larve: bezit 6 haken (hexacanthlarve)
- Boort doorheen de darmwand tot in de bloedbaan
- Spieren (kaakspieren, hart) geen hinder (tot 100 in een spier)
-
Besmetting mens:
- Eten van rauw of ongaar bereid vlees met blaaswormen
- Water en groenten besmet met eieren (enkel bij de varkenslintworm)
- Vuile handen
- Darm:
o Kapsel wort verteerd – kop en hals stulpen uit
o Kop zet zich vast in darmwand
o Lintworm begint te groeien
Slachthuis:
- Vleeskeuring: 5plaatsen keuren
o Kauwspieren, tong, slokdarm, middenrif, hart
Symptomen
- Tussengastheer: geen
- Eindgastheer:
o Geen letsels aan de darmwand
T. saginata (runder): T. solium (varkens):
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