CATTLE Parasites

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16 Terms

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What is this parasite

Rhipicephalus australis (cattle tick)

- Damage to hides, decr production

- Anaemia

- Tick worry

Transmission of Babesia/Anaplasma

Tx: SP, amitraz, ML, Acatak

<p>Rhipicephalus australis (cattle tick)</p><p><span style="font-family: Calibri, sans-serif;"><span>- </span></span>Damage to hides, decr production</p><p class="MsoListParagraphCxSpMiddle"><span style="font-family: Calibri, sans-serif;"><span>- </span></span>Anaemia</p><p class="MsoListParagraphCxSpLast"><span style="font-family: Calibri, sans-serif;"><span>- </span></span>Tick worry</p><p><span style="font-family: Aptos, sans-serif; line-height: 115%;"><span>Transmission of Babesia/Anaplasma</span></span></p><p>Tx: SP, amitraz, ML, Acatak</p>

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What is this parasite

Haemaphysalis longicornis (bush tick)

Anaemia, decr condition, weakness

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What is this parasite

- Anaemia, haemoglobinuria, jaundice

- Diarrhoea

- Cerebral babesiosis (hyperaesth, aggr, coma, convulsion, paralysis)

- Clinpath: anaemia, 5g/L haemoglobinaemia, proteinuria

- PM: organs swollen, congested, anaemic, jaundiced, thin blood, enlarged spleen, enlarged liver, brain grey matter characteristic pink, dilated brain capillaries, watery blood

- Dx: Giema stain

- Tx: Imidocarb

<p><span style="font-family: Calibri, sans-serif;"><span>- </span></span>Anaemia, haemoglobinuria, jaundice</p><p class="MsoListParagraphCxSpMiddle"><span style="font-family: Calibri, sans-serif;"><span>- </span></span>Diarrhoea</p><p class="MsoListParagraphCxSpMiddle"><span style="font-family: Calibri, sans-serif;"><span>- </span></span>Cerebral babesiosis (hyperaesth, aggr, coma, convulsion, paralysis)</p><p class="MsoListParagraphCxSpMiddle"><span style="font-family: Calibri, sans-serif;"><span>- </span></span>Clinpath: anaemia, 5g/L haemoglobinaemia, proteinuria</p><p class="MsoListParagraphCxSpLast"><span style="font-family: Calibri, sans-serif;"><span>- </span></span>PM: organs swollen, congested, anaemic, jaundiced, thin blood, enlarged spleen, enlarged liver, brain grey matter characteristic pink, dilated brain capillaries, watery blood</p><p class="MsoListParagraphCxSpLast"></p><p class="MsoListParagraphCxSpLast"><span style="font-family: Calibri, sans-serif;"><span>- </span></span>Dx: Giema stain</p><p class="MsoListParagraphCxSpLast"><span style="font-family: Calibri, sans-serif;"><span>- </span></span>Tx: Imidocarb</p>

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What is this parasite

Anaplasma Marginale

- Fever, depression, inappetence, anaemia, jaundice, weakness, mm tremor

- Appear 1 mos after exposure

- Both taurus and indicus are suscept

- More in animals >1-2yo

PM: anaemia, watery blood, jaundice, spleen/liver enlarged

<p>Anaplasma Marginale</p><p><span style="font-family: Calibri, sans-serif;"><span>- </span></span>Fever, depression, inappetence, anaemia, jaundice, weakness, mm tremor</p><p class="MsoListParagraphCxSpMiddle"><span style="font-family: Calibri, sans-serif;"><span>- </span></span>Appear 1 mos after exposure</p><p class="MsoListParagraphCxSpMiddle"><span style="font-family: Calibri, sans-serif;"><span>- </span></span>Both taurus and indicus are suscept</p><p class="MsoListParagraphCxSpLast"><span style="font-family: Calibri, sans-serif;"><span>- </span></span>More in animals >1-2yo</p><p><span style="font-family: Aptos, sans-serif; line-height: 115%;"><span>PM: anaemia, watery blood, jaundice, spleen/liver enlarged</span></span></p>

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What is this parasite

Theileria orientalis

- Comma/rod-shaped P in RBC

Lymphocyte destruction
Leukopenia, anaemia

NO haemolobinuria

Dx: Exclusion, blood smears

Tx: Oxytetracycline, imidocarb

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What is this parasite

Linognathus vituli

Alopecia, Anaemia

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What is this parasite

Haematobia exigua (buffalo fly)

- Esp withers, shoulders, flanks

Tx: SP, diazinon, ML

<p><span style="line-height: 115%;"><span>Haematobia exigua (buffalo fly)</span></span></p><p><span style="font-family: Calibri, sans-serif;"><span>- </span></span>Esp withers, shoulders, flanks</p><p>Tx: SP, diazinon, ML</p>

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What is this parasite

Ostertagia ostertagi

- Reddish brown, may have vulvular flap

- Male spicules are relatively short, divided distally into 2/3 process

- Type 1 (spring) vs Type 2 (autumn)

- Anorex, watery diarr, wt loss, anaemia, hypoalbuminaemia, bottle jaw

- Incr blood pepsinogen

<p><span style="line-height: 115%;"><span>Ostertagia ostertagi</span></span></p><p><span style="font-family: Calibri, sans-serif;"><span>- </span></span>Reddish brown, may have vulvular flap</p><p class="MsoListParagraphCxSpLast"><span style="font-family: Calibri, sans-serif;"><span>- </span></span>Male spicules are relatively short, divided distally into 2/3 process</p><p class="MsoListParagraphCxSpLast"><span style="font-family: Calibri, sans-serif;"><span>- </span></span>Type 1 (spring) vs Type 2 (autumn)</p><p class="MsoListParagraphCxSpMiddle"><span style="font-family: Calibri, sans-serif;"><span>- </span></span>Anorex, watery diarr, wt loss, anaemia, hypoalbuminaemia, bottle jaw</p><p class="MsoListParagraphCxSpLast"><span style="font-family: Calibri, sans-serif;"><span>- </span></span>Incr blood pepsinogen</p>

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What is this parasite

Bunostomum phlebotum

- Anaemia, weakness, anorexia, black scour/diarr, wt loss, bottle jaw

- Esp dairy calves 5-12 mos old

PM: intestinal mucosa becomes inflamed & thickened with punctiform haemorr and haemorr enteritis

<table style="min-width: 25px;"><colgroup><col style="min-width: 25px;"></colgroup><tbody><tr><td colspan="1" rowspan="1" style="border-width: 0.5pt; border-style: solid; border-color: rgb(0, 0, 0); vertical-align: top; padding: 0pt 5.4pt; overflow: hidden; overflow-wrap: break-word;"><p><span style="background-color: transparent;"><span>Bunostomum phlebotum</span></span></p></td></tr></tbody></table><p><span style="font-family: Calibri, sans-serif;"><span>- </span></span>Anaemia, weakness, anorexia, black scour/diarr, wt loss, bottle jaw</p><p class="MsoListParagraphCxSpLast"><span style="font-family: Calibri, sans-serif;"><span>- </span></span>Esp dairy calves 5-12 mos old</p><p class="MsoListParagraphCxSpLast"><span style="line-height: 115%;"><span>PM: intestinal mucosa becomes inflamed & thickened with punctiform haemorr and haemorr enteritis</span></span></p><p class="MsoListParagraphCxSpLast"></p>

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What is this parasite

Oesophagostomum radiatum

- Anorexia, intermitt diarr, illthrift, emaciation

- L4 feed on small plugs of tissue  small intestinal mucosa ulcers

<p><span style="line-height: 115%;"><span>Oesophagostomum radiatum</span></span></p><p><span style="font-family: Calibri, sans-serif;"><span>- </span></span>Anorexia, intermitt diarr, illthrift, emaciation</p><p class="MsoListParagraphCxSpLast"><span style="font-family: Calibri, sans-serif;"><span>- </span></span>L4 feed on small plugs of tissue <span><span></span></span> small intestinal mucosa ulcers</p>

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What is this parasite

Paramphistomes ichikawai

- Feed on tissue/blood

- Posterior sucker causes vlli trauma

- Anorexia, polydipsia, wt loss, fluid/foul diarr, dehydrated, weakness, anaemia, bottlejaw death

- PM: oedema, congestive enteritis, erosion, petechiae, villi atrophy, mature in rumen, reticulum

Dx: CS, hx

Tx: Nilzan

<p><span style="line-height: 115%;"><span>Paramphistomes ichikawai</span></span></p><p><span style="font-family: Calibri, sans-serif;"><span>- </span></span>Feed on tissue/blood</p><p class="MsoListParagraphCxSpMiddle"><span style="font-family: Calibri, sans-serif;"><span>- </span></span>Posterior sucker causes vlli trauma</p><p class="MsoListParagraphCxSpMiddle"><span style="font-family: Calibri, sans-serif;"><span>- </span></span>Anorexia, polydipsia, wt loss, fluid/foul diarr, dehydrated, weakness, anaemia, bottlejaw death</p><p class="MsoListParagraphCxSpLast"><span style="font-family: Calibri, sans-serif;"><span>- </span></span>PM: oedema, congestive enteritis, erosion, petechiae, villi atrophy, mature in rumen, reticulum</p><p class="MsoListParagraphCxSpLast">Dx: CS, hx</p><p class="MsoNormal">Tx: Nilzan</p>

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What is this parasite

Monieza expansa/benedeni

- 3-5m long

- Scolex with 4 suckers

Diarr, constip, neuro sns, anaemia, wt loss

Dx: eggs in poo

Tx: praziquantel

<p><span style="line-height: 115%;"><span>Monieza expansa/benedeni</span></span></p><p><span style="font-family: Calibri, sans-serif;"><span>- </span></span>3-5m long</p><p class="MsoListParagraphCxSpLast"><span style="font-family: Calibri, sans-serif;"><span>- </span></span>Scolex with 4 suckers</p><p class="MsoListParagraphCxSpLast"><span style="line-height: 115%;"><span>Diarr, constip, neuro sns, anaemia, wt loss</span></span></p><p class="MsoListParagraphCxSpLast">Dx: eggs in poo </p><p class="MsoNormal">Tx: praziquantel</p>

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What is this parasite

Eimeria bovis/zurnii

Severe diarr, dehydration, anaemia, wt loss, anorexia, weakness, tenesmus, rectal prolapse, perineum, tail stained with faeces

- PM: congested intestinal mucosa, catarrhal enteritis, petechial haemorr

Dx: oocysts in diarrhoea

Tx: toltrazuril (tx all)

<p><span style="line-height: 115%;"><span>Eimeria bovis/zurnii</span></span></p><p>Severe diarr, dehydration, anaemia, wt loss, anorexia, weakness, tenesmus, rectal prolapse, perineum, tail stained with faeces</p><p class="MsoNormal">- PM: congested intestinal mucosa, catarrhal enteritis, petechial haemorr</p><p class="MsoNormal">Dx: oocysts in diarrhoea </p><p class="MsoNormal">Tx: toltrazuril (tx all)</p>

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What is this parasite

Cryptosporidium parvum

Small oocysts, have 4 sporozoites

- Zoonotic

- Severe diarr, severe dehydration, pale yellow diarr with mucous, lethargy anorex, death

Dx: oocysts in poo

Tx: halofuginone

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What is this parasite

Dictyocaulus viviparous

- Brown, bent spicules

Tachypnoea, dyspnea, dry cough, ‘air hunger’, wt loss

Dx: CS, hx

Tx: BZD, leva, ML

<p><span style="line-height: 115%;"><span>Dictyocaulus viviparous</span></span></p><p><span style="font-family: Calibri, sans-serif;"><span>- </span></span>Brown, bent spicules</p><p class="MsoListParagraphCxSpLast"><span style="line-height: 115%;"><span>Tachypnoea, dyspnea, dry cough, ‘air hunger’, wt loss</span></span></p><p class="MsoListParagraphCxSpLast">Dx: CS, hx</p><p class="MsoNormal">Tx: BZD, leva, ML</p>

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What is this parasite

Trichomonas foetus

- Pyriform shape

- 4 flagella (3 anterior, 1 posterior)

- Males are asymp carriers

Vaginitis, endometritis, abortions

Dx: CS, wet prep

Tx: 5-nitroimidazole

<p><span style="line-height: 115%;"><span>Trichomonas foetus</span></span></p><p><span style="font-family: Calibri, sans-serif;"><span>- </span></span>Pyriform shape</p><p class="MsoListParagraphCxSpLast"><span style="font-family: Calibri, sans-serif;"><span>- </span></span>4 flagella (3 anterior, 1 posterior)</p><p class="MsoListParagraphCxSpLast"><span style="font-family: Calibri, sans-serif;"><span>- </span></span>Males are asymp carriers</p><p><span style="font-family: Aptos, sans-serif; line-height: 115%;"><span>Vaginitis, endometritis, abortions</span></span></p><p>Dx: CS, wet prep</p><p class="MsoNormal">Tx: 5-nitroimidazole</p>