Viral Respiratory Diseases of Poultry

Forum: Viral Respiratory Diseases of Poultry: A Continuos Challenge

Published on: 11/29/2011
Author/s : Dr. Guillermo Zavala, DVM, MAM, MS, PhD, DACPV (University of Georgia)
Introduction Viral respiratory diseases of significance are caused by only a handful of viruses represented by Newcastle disease virus (NDV), infectious bronchitis virus (IBV), infectious laryngotracheitis virus (ILTV), avian metapneumovirus (MPV), and avian influenza virus (AIV). Despite the relatively small number of types of viruses circulating in the fi...
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November 29, 2011
Dear Dr. Guillermo,

The article is important to me, since I do have frequent ND outbreaks with the velogenic viscerotropic form (asiatic strain) ,showing hypermia of trachea ,haemorraghes at the proventricular junction and haemorraghes in the intestine extending upto ceaca.this generally occurs in 3 week plus broiler.(cobb500)
On strategy to control we are following tylosin treatment along with live and killed vaccines, but the result has been poor.

Could you please give any suggestion?


Nitin. S.
Nadim Amarin Nadim Amarin
Technical and Marketing manager - META Area - United Animal Health
November 29, 2011

Regarding ND vaccination we found to the best combination as follow:

Broiler: ND LaSota Killed + Three time Live (two of them at least LaSota)

Layers: Three time ND LaSota Killed at Least in the rearing period.

(in addition to the live LaSota vaccines)

DR. Md.Ashiqur Rahman. DR. Md.Ashiqur Rahman.
Veterinary Doctor
November 29, 2011
Dear Sir,
Thanking you for your splendid article.
Dr. Rahul Hardas Dr. Rahul Hardas
Veterinary Doctor
November 30, 2011

ND disease prevalence in the field condition has lead to severe loss in the field and conditions even aggravate the when the seasonal change occur seen prominently in now a days. However treatment with Tiamutin and later treatment with a suitable antibiotic in between 20-25 days yield better result also the first vaccination with lasota/ ND killed with F1/ B! strain proven to be effective to control Viral respiratory problem.

Dr Jaydip Mulik Dr Jaydip Mulik
Master Of Veterinary Science & Master of Business Administration
November 30, 2011
Informative Article..
Dr. Karki Kedar Dr. Karki Kedar
Doctor of Veterinary Medicine
November 30, 2011
Thanks for information
December 1, 2011

the key of diseases control of respiratory diseases in poultry are biosecurity, and than quality of vaccine and application of vaccination. good article,... !!.

Abo Ibrahim Abo Ibrahim
December 15, 2014
viral respiratory diseases usually multifactorial . mis diagnosis , unsuitable interference with treatment constitute amajor problem . vaccinal interference must be considered
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