Fungal diseases - aspergillosis, Biology

Fungal diseases

Aspergillosis

Aspergillosis is mycotic disease of poultry and all other species of birds caused by a fungus known as Aspergillus fumigatus. Feed or litter contaminated with the fungus particularly in damp environment is responsible when a large number of spores are inhaled by the birds. Immunologically compromised or stressed birds are more susceptible. Aspergillus can penetrate egg shells under ideal conditions and infect the embryo. Such eggs may appear green when candled. Infected embryos may hatch with well developed lesions.

Symptoms and lesions: Young, brooding chicks are more susceptible (hence brooder's pneumonia). The clinical signs seen are dyspnoea, gasping, accelerated breathing, diarrhoea, anorexia, progressive loss of weight and increased thirst. In certain cases, nervous signs also appear.

Small whitish or yellowish nodules and plaques are seen in the lungs and air sacs, cheesy mass deposited in trachea; mycelial growth may be apparent as fuzzy green material on the air sacs.

Diagnosis: Clinical picture and PM lesions are indicative of the disease. Microscopic examination of crushed nodules from lungs and air sacs on glass slides would demonstrate fungal hyphae of A. fumigatus as a confirmation.

Prevention and control: Aspergillus is a common contaminant of environment. Healthy chicks, balanced nutrition, good management with dry and good quality litter along with necessary sanitary measures would keep the infection away from the poultry.

Posted Date: 9/18/2012 8:40:55 AM | Location : United States







Related Discussions:- Fungal diseases - aspergillosis, Assignment Help, Ask Question on Fungal diseases - aspergillosis, Get Answer, Expert's Help, Fungal diseases - aspergillosis Discussions

Write discussion on Fungal diseases - aspergillosis
Your posts are moderated
Related Questions
Q. What do you mean by Monographs? A monograph is defined as "the complete account as can be made at a given time of any one family, tribe or genus, nothing being neglected of

Vegetative Development - Development The process of growth and differentiation of cells into organs and organisms is often termed development. For example, the development of

Q. Explain Diseases of pericardium? Pericardium is the sac covering the heart. Pericardium consists of two layers-the visceral pericardium (epicardium) and the parietal pericar

Q. Implementation of the Plan in diabetes mellitus? You have helped the client to find out an alternative solution and to develop a plan to solve the problem. Now, it has to be

Congenital Heart Diseases   Congenital heart diseases are classified in many ways. One set of classification is cyanotic and acynotic conditions. Morphological classification

classification of all organisms under d phylum protozoa

Blastomycosis Blastomyces dermatidis is a dimorphic fungus existing as a mold in the soil (saprophytic stage) and as a yeast in tissues (parasitic stage). It causes systemic fu

Blood Vessels There are three types of blood vessels. They are: 1) Arteries: Arteries carry blood from heart to different organs. They have thick wall. 2) Veins: Vein

Amoebae - Protozoan Amoebae may be naked or enclosed in tests or shells. The marine, freshwater and parasitic naked amoebae have large commonly tubular lobopodia or fine strap

Q. What are the major types of lipids? The main types of lipids are phospholipids, triglycerides (fats and oils), waxes and steroids.