Poul

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Gumboro Dz AKA

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Infectious Bursal Dz

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Etiology of Infectious Bursal Disease

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IBD virus, Birnaviridae family

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Primary target organ for IBD

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cloacal bursa

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Other organ changes with IBD and why

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Renal- dehydration

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Treatment if IBD?

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none

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Inflammed bursa of fabricius-what is your Dx

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IBD

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Round heart disease aka

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Spontaneous Cardiomyopathy

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Round heart disease found mostly in

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Turkey

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Normal shape of avian heart

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triangular

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Age of turkeys with Round heart disease

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1-4 wks

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Differential diagnosis of Round heart disease

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Furazolidine toxicity

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Infectious bronchitis affects what birds?

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Chickens and pheasants

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What is your dx? Loss of egg shell color and nephritis.

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Infectious bronchitis

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What is the tx of Infectious bronchitis?

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Vaccinate

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Encephalomalacia cause

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Vit E deficiency

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Rickets cause

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Vit D deficiency

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Necrotic enteritis caused by

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clostridium perfrigens

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Age susceptible to necrotic enteritis

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2-8 wks

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Treatment of necrotic enteritis

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Penicillin

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Mareks dz etiology

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herpes

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What is floppy chicken

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Mareks disease

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Paralysis of one or more legs or wings what is your ddx

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mareks dz

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Lymohoid tumors- what is your ddx

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Mareks dz

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Enlargement of peripheral nerves and brachial and sciatic plexus

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Marek's dz

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Controll of Mareks dz

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vaccinate 1 day old chicks

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Coccidia species seen in avian

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Eimeria spp ( E. Tenella in chickens)

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Coccidia affects what portion of GI

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cecum

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Prevention of coccidia

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Clopidol to early chicks

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Runting syndrome aka

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malabsorption syndrome, infectious stunting syndrome

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Helicopter wings

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malabsorption syndrome

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Pancreatic atrophy and fibrosis sign of

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malabsorption syndrome

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Bluecomb dz aka

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Coronoviral enteritis of turkeys

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Wet droppings a finding with what diseases

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Bluecomb, Infectious bursal disease

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Chalky eggshells

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Bluecomb dz

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Darkening of head and skin

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Bluecomb dz

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Treatment of Bluecomb dz

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Peni, tetra

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Blackhead in turkeys

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Histomonas Meleagridis

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Blackhead carried by

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ova of heterakis gallina

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Yellow diarrhea

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Blackhead

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Blackhead affects what organs

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cecum, liver

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Pale shriveled comb, spotted feathers, hepatomegally, tumors with lymphoBLASTS

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Lymphoid Leukosis

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Lymphoproliferative disease of turkeys etiology

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Retro

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Internal parasites

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•Ascaridiasis – Ascaridia galli, hermaphrodita, columba, platycerci;VLM (visceral larval migrans of CNS)

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•Gizzard and Intestinal Worms

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– Porrocecum; L found under horny lining of gizzard; may cause tumors in serosal surface of intestine (eggs look like ascarids only bigger and thick-walled)

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• Proventricular and Gizzard worms –

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Microtetrameres, Hatertia, Dispharynx, Spiroptera; Cockroach int host;

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• Signs:
a. Conjunctivitis
b. Upper tracheal obstruction
c. Gasping
d. Back yard flocks have sporadic deaths w/ tracheal plugs

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ILT

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Etilogy of ILT

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herpes

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Prevention of ILT

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eye drop

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Mycoplasmosis mc affect

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turkeys and chickens

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Etiology Mycoplasmosis

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M. gallisepticum synoviae

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Strain of mycoplasma that causes infertitily in turkeys

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M.iowae

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Can cause sinusitis, resp dz, conjunctivitis and lameness

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Mycoplasma

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Hemorrhagic enteritis etiology

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Adenovirus

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Hemorrhagic enteritis affects what systems

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reticuloendothelial system

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Intestines filled with red/brown blood and marbeled spleen?

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Hemorrhagic enteritis

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Green Muscle Disease aka

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Deep pectoral myopathy

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Green Muscle Disease caused by

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ischemia following heavy exercise

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This can be caused by intense handling during AI

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Green Muscle Disease

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Circular white green lesions in air sacs and resp tract

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Asp fumigatus

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Comment

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not horses, are good sentinels for human cases (in EEE, horses are good sentinels for human cases)

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Highest incidence of west nile during what months

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**Hights incidence in August and September – important for vaccination schedule
altered consciousness

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Dx west nile

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Dx
Viral isolation from cold brain
High titer

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• Eyeworms – Thelazia; nicitating membrane
• Gizzard worms of ducks and geese – Amidostonum anseris;
• Capillariasis – Threadworms, Hairworms; Capillaria spp; Earthworm; Bipolar plugged eggs

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• Cecal worms – Heterakis gallinarum carries Histomonas (see above)
• Proventricular worm – Acuaria; Water flea is intermediate host; very high mortality
• Trichostrongyles – Trichostrongylus tenuis;cecum
• Syngamiasis – Gapes; Earthworms, slugs, snails and beetles; in trachea; causes dysnpnea

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• Cyanthostomiasis – Cyanthostoma spp;Earthworm; orbit and nasal cavity
• Filiariasis – Serratospiculum;biting arthropods; L in blood stream (lung, intestine, SQ, metatarsal, eye); CNS signs
• Thorny headed worm – Acanthocephalis; mucosa of intestine causing enteritis
• Tapeworms – Cestoda; fish secondary host; not often pathogenic
• Flukes – Anemia; signs depend on location in body

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External parasites
• Red mite – Dermanyssus gallina;Anemia and death; lives in buildings
• Northern Fowl Mite – Ornythonyssus sylviarum;
• Cnemidocoptes mutans – scaly leg, very common in backyard chickens;

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What is a disease transmisable to birds that is carried by rodents and pigs

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erysipelas

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Etiology of erysipelas

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rhusiopatha and insidiosa

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Sudden death in fattening turkeys

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erysipelothrix insidiosa

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conjunctivitis and bruising of non pigmented skin

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erysipelas

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Disease spread by aerosol and from blood sucking mites

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Fowl/avian cholera

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Etiology of Avian cholera

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Past multocida

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mucoid oral discharge, swollen joints/wattles, septicemia

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Avian cholera

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In humans this bird disease is manifested as meningitis

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cryptococcus

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In pigeon droppings

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Cryptococcus

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Yeast like zoonotic disease

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crypto

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Stain for cryptococcus

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Mucicarmine

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Public health concern, i n Mississippi river, looks like white/brown bread mold

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Histoplasma capsulatum

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Avian tuberculosis affects what age birds

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older

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Etiology avium TB

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mycobacterium avium

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Can remain in environment for 7 years

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Avian TB

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Persistant ulceration or granuloma on head

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Avian TB

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Major turkey salmonella

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S. arizona

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Salmonella zoonotic to all species

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S. typhimurium

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Avian Bordetella

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Turkey Coryza

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Leucocytozoonosis transmitted by

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biting flies (simulium)and midgies(culicoides)

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Damage from Leucocytozoonosis seen where

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liver, spleen

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Fowl pox transmitted by

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mites, ticks,mosquitos

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Bolliinger bodies on histo

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Fowl pox

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Ornithosis aka

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chlamydiosis

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psittacosis aka

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chlamydiosis

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Is chlamydia a bacteria?

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Rickettsia-like organism

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One eyed cold in pigeons aka

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chlamydiosis

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Canker aka

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Trichomoniasis

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Etiology of Trichomoniasis

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Trichhomonas gallinae

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Lesions of Trichomoniasis

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Mouth, trachea

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Infectious coryza etiology

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Hemophilus paragallinarum

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Infectious coryza causes

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acute respiratory disease

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Tx of Infectious coryza

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sulfa drugs( gram -)

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Swollen wattles especially in males

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Infectious coryza

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Botulism aka

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limberneck

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Botulism etiology

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Botulinum toxin C

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Mechanical vector of Botulism

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maggots

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Botulinum toxin found in

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rotting carcasses and vegetables

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Greenish diarrhea

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Botulism

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Samples to submit with Botulism

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Frozen liver and kidney

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Type of paralysis w/ Botulism

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A progressive flaccid paralysis of the neck, tongue, legs and wings

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Newcastle Dz etiology

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Paramyxovirus

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Drop in egg production, soft shelled eggs, torticollis

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NCD