infectious diseases on exotic birds ii
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Infectious diseases on exotic birdsTRANSCRIPT
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Infectious diseases on exotic birds II.
Winter semester 2010
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Large Birds - pet
- intestinal dysbiosis- metabolical disorders- intoxication- PBFD, Chlam, Polyo- mycosis- parasitosis
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Small birds - pet
- intestinal dysbiosis - metabolical disorders (obesity, gout)- megabacteriosis- intoxication- PBFD, Chlam, Polyo- mycotic infection- parasitic infection
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Breeded parrot – from South America, Africa, Australie
- intestinal dysbiosis - intestinal parasites- PPDD or NGD- PBFD, Chlam, Polyo,
Pacheco- mycotic infection- blood parasites
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Birds of prey- endomycosis- pododermatitis- parasitic invasion
(coccidia, round worms of digestive and respiratory systems)
- bacterial infection of digestive and respiratory systems
- fractures
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Currently Important Disease
- Neuropathic gastric dilatation (NGD)
- Endomycosis (mainly Aspergillosis)
- Intestinal dysbiosis
- Parasitic invasion
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Neurophatic gastric dilatationSynonyms
• Psittacine proventricular
dilatation syndrome (PPDS)
• Macaw wasting syndrome• Characteristics
• im medium size and great species of parrots• lymphocytic and monocytic infiltration of intrinsic and extrinsic
splanchnic nerves of the muscularis tunics of the alimentary tract and non-suppurative encephalitis
• stasis of contents gastrointestinal tract
• dilatation of crop, proventriculus, gizzard or duodenum
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Occurence of NGD in others birds species
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Neurophatic gastric dilatation
Etiology – diferent oppinion
• unclear
• viral etiology has been suggested• demonstration of intranuclear and intracytoplasmic
inclusion bodies in affected tissue of some birds
• virus → then immunity mediated disease?
• low pathogenic paramyxovirus?
• (adenovirus x polyomavirus x viruses of encefalitis?)
• New – avian bornavirus (august 2008)
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Neurophatic gastric dilatation
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Neurophatic gastric dilatation
Clinical sings
• lose weight, often in birds with intake of feed
• nondigested seeds in feaces, regurgitation
• progressively depression, inappetence and cachexy
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Neurophatic gastric dilatation
Intravital diagnostic X-ray – proventriculus full with feed
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Neurophatic gastric dilatation Intravital diagnostic X-ray– proventriculus full of gas
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Normal configuration of digestive tract
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Neurophatic gastric dilatationDiagnostics
Post mortem findings
• dilatation of crop, proventriculus, gizzard or duodenum
• wall of proventriculus thin, transparent
• sometimes thinner wall and atrophy of musculature of gizzard
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Neurophatic gastric dilatation
- dilatation of stomach with nondigested feed- thinner wall with petechial bleedings
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Wall of proventriculus
Infiltration of lymfocytoplasmocytal
cells
Erytrocyts in haemorhage
secretion glandula
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Neurophatic gastric dilatationFor histological confirmation of diagnosis :- crop- proventriculus- myocard- adrenals- CNS- peripheral nerve
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Neurophatic gastric dilatationDiagnostics - confirmation• lymphocytic and monocytic infiltration of intrinsic and extrinsic
splanchnic nerves of the muscularis tunics of the alimentary tract, in some cases, leiomyositis in organs innervated by affected nerves and non-suppurative encephalitis, myelitis and radiculoneuritis have been described
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Influence of nutrition – occurence in free living birds?
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Possible nutritional supplements
oyster mushroom
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Endomycosis
Aspergillus spp. Penicillium spp. Mucor spp.
Birds of prey and owls from northern regions.In AGPAGP (predisposition to avitaminosis vit. A) or in immunosupresive individual (peracute PBFD)
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Aspergillosis – 4 forms
1.Acute – short time exposition of organismus to the great mount of spores
2.Tracheal – formation of
lesion in bifurcation of trachea
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Aspergillosis – 4 forms
3.Chronic – granulomsin airsacs and lunges
4.Invasive – spore are haematogenic way
transmit to other systems
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Aspergillosis - therapy1.Removing of lesion (if is possible)2. Using the treatment which kill the fungus
(in granuloma), long time therapy 2 – 6 monts (necessary control of all systems)
3. Supportive therapy
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Aspergillosis - therapy
Terbinafine – high fungicidity
Amphotericin B – poor resorbtion from GIT, aplication i.v., i.os., i.t. (nefrotoxicity)
Flucytosin – combination with amphotericinEnilconazol – for deramatophytic infection,
nebulizationClotrimazol – topic aplication, nebulizationItraconazol – systemic infection, p.o.
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•Penicilium spp.
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Intestinal dysbiosis
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Evaluation of feaces adspection methods
- change during seasons - color and consistency- change color and consistency start 24 to
48 hour before clinical sings- appearance on the slide
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Appearance on the slide
+
-
Quantity of nondigested fibre
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PolyuriaPolyuriaOverproduction of clear and wattery urine Feaces are formedOwner ussually say - DIARRHOEA !Etiology is verry diferent, first stress.
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Blood in urineCloacal papilomaCloacal papiloma- Herpesvirus- surgical management,
repeatedly using of Lotagen - Policresulenum
- topicaly acyclovir in Vectavir
- systemic acyklovir Herpesin
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Blood in urineIntoxication with heavy metals (Pb)
- charcoal- psyllium, Smecta, clay- Lactulosa- Duphalyte- saline- Catosal- Metalcaptase
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Diarrhoical feacesIs characterised change of color and consistence of feaces.
1. Change in microbial microflora (bacteria, yeast, flagellated protozoan)
2. Affected of others connected organs (liver, pancreas, stomach) infected and neinfected
3. Combination of 1. and 2.
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Change in microbial microflora
Sporogenous bacteria Coliform bacteria
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Change in microbial microflora
Sporogenous bacteria
- sprouted grains or so-called milky maturity
- color of feaces - dark, brown to tarry
- slimy consistence (attach around the cloaca)
- smell (feaces of healthy parrot is without smell)
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Sporogenous bacteria
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Change in microbial microflora
Coliform bacteria
- for aviary birds are allways potentially dangerous
- source – feaces from free living birds, which contaminated water or feed
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Coliform bacteria
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Changes in others connected organs
Steatosis of liver Inflamation of pancreas
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Combination of changes of microbial microflora with others infectionNGD Chlamydiosis Bacterial inflamation
of liver and intestine
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Important parasital disease
Goal - elimination of impact of parasital diseases on breed to minimum
• Ascaridia
• Capilaria
• Filaria
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Ascaridia Broad spectrum of species as formerly :
• Ascaridia hermaphrodita (macaws, amazons)
• Ascaridia sergiomeirai (conures)
• Ascaridia ornata (orange-winged parrot )
• Ascaridia nicobarensis (long-tailed parakeet)
• Ascaridia platyceri (small parrots from Australia)
• Ascaridia galli (poultry, small parrots from Australia)
• Ascaridia columbae (pigeons, poultry, small parrots from Australia)
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Ascaridia
Budgerigargranuloma in liver
in parrots and pigeon is possible partial migration of larvas
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Ascaridia, Capillaria Clinical sings
• gradual lose weight, during massive infection paradox lacking
• death loss post short period of apathy
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Ascaridia, CapillariaDiagnostics
• eggs in feaces (past 2 months past invasion)
• finding of worms during post mortem
Therapy
(number of birds and method of application)
• fenbendazol (Panacur)
• levamizol (Concurat)
• ivermectin (Ivomec)
Precaution
antiparasitic drogs kills only the larve, but the eggs be able persistent in enviroment some months
eggs are destroy only temperature over 80°C ( boiled water, steam, fire, hot air)
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Fillaria Typical for imported parrots, in
Europe is not possible transmission,
therapy is dificult
In bids of prey are in air sacs.
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Serratospiculum seuratiDiagnostics
• endoscopically
• finding of worms during post mortem
Therapy
(number of birds and method of application)
• fenbendazol (Panacur)
• levamizol (Concurat)
• ivermectin (Ivomec)
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Cyathostoma bronchialeDiagnostics
• endoscopically
• finding of worms during post mortem
Therapy
(number of birds and method of application)
• fenbendazol (Panacur)
• levamizol (Concurat)
• ivermectin (Ivomec)
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Hemosporidia – Haemoproteus spp Plasmodium spp.
Therapy Chloroquin
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Hemosporidia – Leukocytozoon spp.
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Biting lice – Mallophaga spp.
Spray Biokill,
Frontline cleaning of
enviroment
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Knemidocoptes pilae
Occurence on the beak, cere, around the eyes on the skin of the legs.
Therapy Therapy Ivomec/Propylenglykol
1 : 9 to the skin or rightside v.jugularisrepeated past one weak
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Thanks for your attention !!