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Poultry Digestive > Digestive: Parasitic Dss (Part 1) > Flashcards

Digestive: Parasitic Dss (Part 1) Flashcards

1
Q

Parasitic/Fungal dss affecting poultry

A

Coccidiosis
Histomoniasis/Blackhead
Hexametasis
Trichomoniasis
Candidiasis/Thrush
Hepatic Lipidosis (metabolic)

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2
Q

Obligate protoza

A

Coccidiosis: Sporozoa

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3
Q

Coccidiosis: Phylum

A

Ampicomplexa

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4
Q

Ampicomplexa (Apical complex in free stages)

A

Sporozoites, Merozoites: invades the epithelial cells

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5
Q

Host and tissue specific

A

Coccidiosis

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6
Q

Self limiting but immunity developed= partial

A

Coccidiosis

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7
Q

Thick shelled oocytes are passed in feces

A

Sporogony/Sporulation (Environment)

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8
Q

Conditions favorings sporulation

A

High humidity
Good oxygenation
Temp 27⁰ C

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9
Q

Sporogony/Sporultion (Environment):
Nucleus will divide

A

3 times

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10
Q

Sporogony/Sporultion (Environment):
Once sporozoites have been formed, oocyst become_________

A

Sporulated oocyst

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11
Q

Sporogony stages of Eimeria tenella

A

Stages of rounded sporont
Stage of knob formation
First four globe stage
Second four globe stage
Stage of sporozoites differentiation
Stage of complete sporulation

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12
Q

Coccidiosis: high morbitiy, low mortality

A

E. acervulina
E. maxima

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13
Q

Coccidiosis: Dysentery, high morbidity, high mortality

A

E. brunette
E. necatrix
E. tenella

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14
Q

Coccidiosis: anemia, light enteritis, loss of appetite

A

E. acervulina

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15
Q

Coccidiosis: Diarrhea, droppings may be flacked with blood

A

E. maxima

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16
Q

Coccidiosis: enteritis, occasionally bloody

A

E. brunetti

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17
Q

Coccidiosis: Bloody enteritis, drops in feed intake

A

E. necatrix

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18
Q

Coccidiosis: Bloody droppings, reduce in feed intake

A

E. tenella

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19
Q

Coccidiosis: transverse, white bands of oocysts

A

Light infection

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20
Q

Coccidiosis: white plaques coming together, thickened intestinal wall

A

Heavy infection

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21
Q

Coccidiosis: light and heavy infections

A

Potential precursor to necrotic enteritis

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22
Q

Coccidiosis: Thickened intestinal walls, mucous/blood-tinged exudate, blood spots on intestinal wall

A

Potential presursor to necrotic enteritis

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23
Q

Coccidiosis: Ballooning intestine, white open circles of schizonts, blood spots on intestinal wall, mucous/blood-filled exudate

A

Seen more in “longer-lived” flocks because longer life cycle

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24
Q

Coccidiosis: Mucus, blood spots arranged in bands across rectum, vertical bumps appear in rectum

A

Seen more in “longer-lived” flocks because longer life cycle

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25
Coccidiosis: High pathogenicity (high mortality) Large intestine Mucioid, bloody diarrhea
E. brunetti
26
Coccidiosis: High pathogenicity (high mortality) Middle SI Mucoid, blood diarrhea
Eimeria necatrix
27
Coccidiosis: High pathogenicity (high mortality) Caeca Clotted blood
E. tenella
28
Coccidiosis: Medium pathogenicity (low mortality) High SI Ill thrift
E. acervulina
29
Coccidiosis: Medium pathogenicity (low mortality) Middle and low SI Mucoid, blood-tinged feces
E. maxima
30
Coccidiosis: Medium pathogenicity (low mortality) High and middle SI Mucoid feces
E. mitis
31
Coccidiosis: Medium pathogenicity (low mortality) High SI Mucoid feces
E. praecox
32
Chickens: typhilitis, and hemorrhage seen thru intestinal wall
Cecal coccidiosis: E. tenella
33
Coccidiosis: Highly pathogenic: multiply in lamina propria and crypts of lieberkuhn of ceca
Cecal coccidiosis: E. tenella
34
Causes extensive hemorrhage
Cecal coccidiosis: E. tenella
35
Cecal coccidiosis diagnosis
Accumulation of blood in ceca, bloody droppings
36
SI coccidiosis: most pathogenic in chickens
E. acervulina
37
SI coccidiosis: Major lesions in anterior and middle portions of SI
E.necatrix
38
Coccidia spp in Geese
Eimeria truncate
39
Renal coccidiosis
Eimeria truncate in geese
40
Coccidia in geese susceptible
Youngerbirds
41
Coccidiosis in geese signs
Depression, weakness, diarrhea, whitish feces, anorexia, dull sunken eyes, drooped wings
42
Coccidiosis in geese diagnosis
Oocytes in kidneys and cloaca
43
Immunity to reinfection
Coccidiosis in geese
44
Intestinal coccidiosis
Eimeria anseris
45
Eimeria anseris affects
Young birds
46
Eimeria anseris: clinical signs
Anorexia, tottering gait, debility diarrhea, morbidity
47
Eimeria anseris: SI
Enlarged filled w/ reddish brown fluid
48
Eimeria anseris: Lx?
Lx in middle and lower portion of SI
49
Eimeria anseris diagnosis
Classic signs and lesions Microscopic examination of feces and intestinal contents
50
Eimeria anseris tx and prevention
Preventive use of anti-coccidials Immunizations
51
Coccidiostats
Ampolium (DOC) Amprolium-ethopabate Clopidol Clopidol-methylbenzoquate DOT (zoalene) Lasolocid monensin-sodium Narasin Micarbazin Robendin Salinomycin and sulfaquinoxaline
52
Histomoniasis synonyms
Histomoniasis Black head Infectious enterohepatitis
53
Histomoniasis etiologic agent
Histomonas melegridis
54
Histomonas meleagridis
Inhabits the lumen id cecum and parenchyma of live= extensive reactions
55
Histomoniasis: turkey
Reaches 100% mortality
56
Histomoniasis in chickens
Marked morbidity and subsequent recovery
57
Histomonas organisms are carried by eggs the cecal worm___________, enabling them to survive for long period in soil as a source of infection
Heterakis gallinarum
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Fatal infectious catarrhal enteritis in turkeys
H. meleagridis
71
73
Hexamitiasis diagnosis
Lesions, demonstration of organism from intestinal scrapping and cloacal swabs
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Poultry Digestive (5 decks)

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