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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
Q

Coccidiosis:
High pathogenicity (high mortality)
Large intestine
Mucioid, bloody diarrhea

A

E. brunetti

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26
Q

Coccidiosis:
High pathogenicity (high mortality)
Middle SI
Mucoid, blood diarrhea

A

Eimeria necatrix

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27
Q

Coccidiosis:
High pathogenicity (high mortality)
Caeca
Clotted blood

A

E. tenella

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28
Q

Coccidiosis:
Medium pathogenicity (low mortality)
High SI
Ill thrift

A

E. acervulina

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29
Q

Coccidiosis:
Medium pathogenicity (low mortality)
Middle and low SI
Mucoid, blood-tinged feces

A

E. maxima

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30
Q

Coccidiosis:
Medium pathogenicity (low mortality)
High and middle SI
Mucoid feces

31
Q

Coccidiosis:
Medium pathogenicity (low mortality)
High SI
Mucoid feces

A

E. praecox

32
Q

Chickens: typhilitis, and hemorrhage seen thru intestinal wall

A

Cecal coccidiosis: E. tenella

33
Q

Coccidiosis:
Highly pathogenic: multiply in lamina propria and crypts of lieberkuhn of ceca

A

Cecal coccidiosis: E. tenella

34
Q

Causes extensive hemorrhage

A

Cecal coccidiosis: E. tenella

35
Q

Cecal coccidiosis diagnosis

A

Accumulation of blood in ceca, bloody droppings

36
Q

SI coccidiosis: most pathogenic in chickens

A

E. acervulina

37
Q

SI coccidiosis: Major lesions in anterior and middle portions of SI

A

E.necatrix

38
Q

Coccidia spp in Geese

A

Eimeria truncate

39
Q

Renal coccidiosis

A

Eimeria truncate in geese

40
Q

Coccidia in geese susceptible

A

Youngerbirds

41
Q

Coccidiosis in geese signs

A

Depression, weakness, diarrhea, whitish feces, anorexia, dull sunken eyes, drooped wings

42
Q

Coccidiosis in geese diagnosis

A

Oocytes in kidneys and cloaca

43
Q

Immunity to reinfection

A

Coccidiosis in geese

44
Q

Intestinal coccidiosis

A

Eimeria anseris

45
Q

Eimeria anseris affects

A

Young birds

46
Q

Eimeria anseris: clinical signs

A

Anorexia, tottering gait, debility diarrhea, morbidity

47
Q

Eimeria anseris: SI

A

Enlarged filled w/ reddish brown fluid

48
Q

Eimeria anseris: Lx?

A

Lx in middle and lower portion of SI

49
Q

Eimeria anseris diagnosis

A

Classic signs and lesions
Microscopic examination of feces and intestinal contents

50
Q

Eimeria anseris tx and prevention

A

Preventive use of anti-coccidials
Immunizations

51
Q

Coccidiostats

A

Ampolium (DOC)
Amprolium-ethopabate
Clopidol
Clopidol-methylbenzoquate
DOT (zoalene)
Lasolocid monensin-sodium
Narasin
Micarbazin
Robendin
Salinomycin and sulfaquinoxaline

52
Q

Histomoniasis synonyms

A

Histomoniasis
Black head
Infectious enterohepatitis

53
Q

Histomoniasis etiologic agent

A

Histomonas melegridis

54
Q

Histomonas meleagridis

A

Inhabits the lumen id cecum and parenchyma of live= extensive reactions

55
Q

Histomoniasis: turkey

A

Reaches 100% mortality

56
Q

Histomoniasis in chickens

A

Marked morbidity and subsequent recovery

57
Q

Histomonas organisms are carried by eggs the cecal worm___________, enabling them to survive for long period in soil as a source of infection

A

Heterakis gallinarum

70
Q

Fatal infectious catarrhal enteritis in turkeys

A

H. meleagridis

73
Q

Hexamitiasis diagnosis

A

Lesions, demonstration of organism from intestinal scrapping and cloacal swabs

Poultry Digestive (5 decks)

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