Exotics- Poultry 2

kelseyfmeyer's version from 2015-09-27 21:00

Poultry ctd

Question Answer
Avian encephalomyelitis virus is usually administered in a wing web stick along with what other virus?Pox virus (avipoxvirus)
What are the dry and wet forms of poxvirus infection?Dry form- effects skin- typical pox lesions. Wet form-effects mucous membranes- fibronecrotic tracheitis- can plug trachea --> suffocation
What is the classical histological lesion that can be used to diagnosis poxvirus infection?intracytoplasmic inclusions --> "Bollinger" bodies (i got chicken pox from a bolling ball)
How is poxvirus vaccine usually administered to chickens?SQ wing-web
What are the pathotypes of Newcastle disease? Which pathotype is widespread in U.S. poultry operations? Which pathotype is reportable to the state and federal governments?Lentogen, Mesogen, Velogen/ Lentogen is widespread in US poultry- least pathogenic. Velogen aka Exotic new castle dzis highly pathogenic and reportable.
What pathotype of Newcastle disease can closely resemble that of highly pathogenic avian influenza?Exotic New Castle/velongenic, viscerotropic
What pathotype of Newcastle disease is used to create U.S. vaccines?Lentogen
What is the hallmark histological lesion of infectious laryngotracheitis?Herpes virus- so will have epithelia syncytia w/ eosinophilic intranuclear IBs, heterophilic inflammation and necrosis
Why is it practical to vaccinate a chicken flock for infectious laryngotracheitis at the same time that the flock is experiencing a challenge with field ILT virus?Bc incubation period of the virus is 6-12 days and spread slowly. Also prevents “heating up” ie increased pathogenicity as dz spreads from bird to bird
What respiratory virus of chickens can undergo a latency phase in the trigeminal ganglion?infectious laryngotracheitis (HERPES... hanging out in nerves. And the trigeminal nerve is kinda close to the trachea)
What are two herpesviruses that infect chickens?Herpes virus- Infectious Laryngotracheitis- ILT, Mareks
What respiratory virus of chickens can also cause reduced egg production, wrinkled egg shells as well as kidney damage (urolithiasis- nephrotropic virus)?Infectious Bronchtis (cough a wrinkled egg out your bronchi) (Bronchitis Bad eggs)
What are the two routes of infection for the reovirus that causes viral arthritis?Direct contact and egg transmission (touching too many eggs in reo-de-jenero will give you arthritis)
Reovirus has been documented in 2014 to cause arthritis in what poultry species other than chickens?turkeys
What term describes the phenomenon of influenza viruses sharing genomic segments in a host cell?Antigenic shift
What types of birds have been shown to serve as a long time source and mixing vessel for avian influenza viruses?waterfowl
How do the gross lesions of HPAI resemble that of viscerotropic END?Cyanosis and edema of face, comb, wattles, visceral and internal hemorrhage (blood shit)
What form of avian influenza regularly occurs in Midwest turkey flocks?H5N2 (5 and 2 go turkey tipping)
What two hemagglutinin types of avian influenza virus, when identified, must be reported to the World Health Organization and can result in a ban on export of poultry products to other countries?H5 and H7 (five and seven are the most troubled ones)
two wing web vxs?pox and avian encephalomyelitis

Recent badges