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13 Cards in this Set

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Trichostrongyloidea Superfamily --- 8 Genus learned in this course
HOT
Haemonchus (Rums/Cams **Sheep+Goats)
Ostertagia (Rums/Cams **Cattle)
Trichostrongylus (Rums, Cams, Eq, Swine)
Nematodirus (Sheep)
Cooperia (Rums)
Hyostrongylus
Ollulanus (**Cat, (pig))
Dictocaulus (Rums, Eq)
LIFE: Trichostrongylus spp

1. Exit?
2. Outside?
3. Entrance?
4. Predilection?
1. EiF
2. L1-L3
3. Ingestion
4. Colubriformis = Small Intestine (Rums, Cams))
Axei = Abomasum, Stomach (Rums, Eq, Swine)
Dz: Trichostrongylus spp

1. PPP?
2. Path?
3. Clinical Signs?
4. Tx?
1. 2-3 Weeks
2. L3 may Arrest -- L4 -- Adult all in Predilection
3. Fatal if in a HOT combo
Colubriformis = Mucosal disruption, protein loss, diarrhea
Axei = Erosion of glandular epi, nodules, hyperemic gastritis in horses
LIFE: Haemonchus contortus

1. Exit?
2. Outside?
3. Entrance?
4. Predilection?
1. EiF
2. L1-L3
3. Ingestion
4. Abomasum
Dz: Haemonchus contortus

1. PPP?
2. Path?
3. Clinical Signs?
4. Tx?
1. 2-3 weeks
2. L3 (PPR in ewes) -- L4 -- Adult in Abomasum
3. Anemia, Hypoproteinemia (edema, weight loss), diarrhea, hemorrhagic gastritis
4. No Vax, Rotational Graze.... maybe Levamisole can help
LIFE: Ostertagia spp

1. Exit?
2. Outside?
3. Entrance?
4. Predilection?
1. EiF
2. L1-L3
3. Ingestion
4. Abomasum and Duodenum
Dz: Ostertagia spp

1. PPP?
2. Path?
3. Clinical Signs?
4. Tx?
1.
2. L3 -- L4 (Temp Arresters) -- L5 -- Adult all at Predilection = Erosion of secretory epi, change in abomasal pH (raises, unable to cleave pepsinogen), hypoalbuminemia
3. Osmotic diarrhea, anorexia, dehydration, bottle jaw, anemia
4. Remove from pasture and Treat! Time is of the essence!
HOT specialties:
Who hits what the hardest?
Size order?
Barber-Poles hit Sheep and Goats
*use FAMACHA card to see how bad
Ostertagia hit Cattle

Haemonchus > Ostertagia > Trichostrongylus
(2-3cm ... 1cm ... <1cm)
LIFE: Nematodirus spp

1. Exit?
2. Outside?
3. Entrance?
4. Predilection?
5. Special??
1. EiF
2. L1-L2 in Egg - L3 in/out of Egg
3. Ingestion
4. Small Intestine
5. Large Spicule and Enormous Eggs
LIFE: Cooperia spp

1. Exit?
2. Outside?
3. Entrance?
4. Predilection?
5. Special??
1. EiF
2. L1-L3
3. Ingestion
4. Small Intestine
5. Watchspring Worm
Temperate = mild, poor appetite, weight
Tropical = serious, diarrhea, wt loss, edema, villous atrophy
LIFE: Dictyocaulus *viviparous

1. Exit?
2. Outside?
3. Entrance?
4. Predilection?
1. L1 in Feces (viviparous)
2. L1-L3 (L3 may use paratenic Pilobolus)
3. Ingestion
4. Bronchi
Dz: Dictyocaulus viviparous

3. Clinical Signs?
4. Tx?
3. Cough, Tachypnea, Dyspnea (whoops)
4. Europe uses Vax, USA uses drugs
LIFE: Ollulanus tricuspis
Stomach worm in CATS (and pigs)

No eggs in feces. Gastric Ulcers form, cats throw up - Vomit containing worms is ingested.