Вірусны энтэрыт качак
Also known as: Чума качак
Вірусны энтэрыт качак (чума качак) — вострае кантагіёзнае герпесвіруснае захворванне качак, гусей і лебедзяў, якое выклікае герпесвірус качак тыпу 1 (anatid herpesvirus 1). Яно выклікае пашкоджанне сасудаў, крывацёкі ў тканках і высокую смяротнасць, з раптоўнай гібеллю і крывяністымі вылучэннямі. Вадаплаўныя птушкі здольныя станавіцца латэнтнымі носьбітамі, падтрымліваючы цыркуляцыю віруса сярод дзікіх і хатніх папуляцый.
Quick facts
- Type:
- Infectious
- Typical onset:
- Acute
- Body systems:
- Gastrointestinal, Hemolymphatic, Multisystemic
- Affected species:
- DUCK, GOOSE
Overview
Duck viral enteritis, historically known as duck plague, is a severe herpesvirus disease of waterfowl that can cause sudden, heavy losses in domestic and wild duck and goose populations.
Causes
The cause is anatid herpesvirus 1. It spreads through contaminated water, direct contact, and from latently infected carrier waterfowl that shed virus intermittently, especially around water bodies shared with wild birds.
Signs
Signs include sudden death, severe depression, ruffled feathers, watery or bloody diarrhea, nasal discharge, drooping wings, photophobia, and a marked drop in egg production. Mortality can be very high in outbreaks.
Diagnosis
Diagnosis is based on characteristic hemorrhagic and necrotic lesions of the digestive tract and tissues at necropsy, with confirmation by virus isolation or PCR.
Treatment & Management
There is no specific treatment. Outbreaks are controlled by isolation, removal of affected birds, and disinfection. Because it is reportable, suspected cases should be investigated officially.
Prevention
Vaccination of ducks in endemic or high-risk areas is effective, combined with biosecurity and separation from wild waterfowl and shared water.
Sources & references
- Merck Veterinary Manual — Describes duck viral enteritis (duck plague) herpesvirus, its hemorrhagic lesions, carrier state and vaccination control.
This content is for educational purposes and is not a substitute for professional veterinary advice. If you are worried about your pet, contact your veterinarian.