P3 helminth infections in horses Flashcards

1
Q

Hvor lokaliserer bændelorm (Anoplocephalaspp) hos heste sig ?

A

Ileum og cecum

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2
Q

Hvor lokaliserer haleorm (Oxyuris equi) sig?

A

Tyktarm

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3
Q

hvor lokaliserer de store strongylider (Strongylusspp.) og små strongylider (Cyathostominae) sig?

A

Tyktarm

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4
Q

Hvad er den vigtigste store strongylide? (patologisk)

A

Strongylus vulgaris

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5
Q

Pathogenic effects of Strongylus vulgaris

A

Thrombo-embolic endarteritis

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6
Q

Strongylus vulgaris: Relevant diagnostics

hvor lang er præpatensperioden?

A

FÆCESPRØVE => ægtal. alt over 200 skal behandles.
hvis 100: lav en larvekultur og se om det er s. vulgaris eller andre. Især hvis man ved at besætning har problemer med vulgaris.
PP er op til 6 mdr! i denne periode kan ikke ses æg i fæces. Ikke rigtig nogen god metode til at diagnosticere i pp perioden endnu.

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7
Q

Symptomer på Strongylus vulgaris i PRÆPATENS INFEKTION perioden

A

Colic risk increased
Young horses
Circulatory disturbance
Undersøg nærmere!

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8
Q

Symptomer på Strongylus vulgaris i PATENS INFEKTION perioden

A

Anaemia – tendency

Hmmmmm undersøg

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9
Q

Hvilke heste kan blive syge af s. vulgaris

A

Kliniske symptomer ses sjældent.

Men HVIS er det for det meste UNGE heste < 3 år

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10
Q

Små strongylider (cyathomstomer)

parasitic development

A

Ikke migratorisk etablering.
L3 invasion af mucous membran i caecum og colon
Molt and growth, L3 – L4, hypobiosis
Potentially pathogenic factor: Simultaneous release of numerous L4 from mucous membrane

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11
Q

Små strongylider (cyathomstomer)
Hvor lang præpatenstid?
hvordan ses de (patologi)

A

2- 3 mdr

rullet op i tarmmucosaen. kan give svulmet og ødematøs slimhinde.

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12
Q

Cyathostomitose

- SUBklinisk form

A

All grazing horses subclinically infected (reduced weight gain)
THIS IS THE USUAL COURSE (> 95%)!

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13
Q

Cyathostomitose

- KLINISK form

A

= Larval cyathostominosis
Inhibited larvae in mucous membrane of the large intestine
Primarily during the stabling period (late winter/earlyspring)
Diarrhoea and weight loss
Protein loss: HYPOALBUMINAEMIA (intestinal/ systemicedema)
May be triggered by stress factors, incl. anthelmintic treatment
Increasing clinical importance (Possibly due to increasing horse density on pastures)

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14
Q

Larve cyathostomitose:
Diagnostik
- klinisk og paraklinisk

A
Clinical
- Diarrhoea - tendency
- Young / elderly horses
- Edema tendency (belly)
- Death (potentially)
Paraclinical
- McMaster (> 3months)
- Coprologi – L4 excretion
- Hypoalbuminaemia
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15
Q

strongylidose hos heste
generelt
epidemiologi

A

SPRINGRISE alle voksne heste udskiller store mængder strongylideæg i foråret pga reaktivering af inhiberede L3 larver..
L3 indhold i græsset stiger i juni-juli og føllene vil udskille æg fra september

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16
Q

cyatostom PP tid?

A

omkring 3 mdr. kan forlænges i vinterperioden pga larveinhibation.

17
Q

Oxyuris equi er?

A

Hestens haleorm

18
Q

Oxyuris equi, diagnosticering?

A

Klinisk: Kløe omkring halen, sår, orm i fæces, evt synlige æg
Paraklinisk:
Tapetest

19
Q

Parascaris equorum

hvad er det?

A

Hestens spoleorm

20
Q

Parascaris equorum: Diagnostics

A
Clinical
- coughing and nasal discharge (“summer colds”)
- foals show unthriftiness
- retarded growth-rate
- pot belly
- occasionally colic
Paraclinical
- McMaster (~ 3months)
21
Q

Strongyloides westeri er?

A

hestens trådorm
smitter hoppe-> føl lactogent
Kan hos føl ses som utrivelighed og evt diarré

22
Q

Strongyloides westeri

diagnostik?

A

Clinical

- foals 2 weeks)