PMID: 8053122Jan 1, 1994Paper

Epizootiology and pathogenesis of avian mycobacteriosis in the field rook (Corvus frugilegus)

Veterinární medicína
K HejlicekL Cerný


The occurrence of avian mycobacteriosis in the rook (C. frugilegus) was investigated in the years 1966-1985. A total of 188 birds captured at three localities of the Czech Republic were subjected to patho-morphological examination and to culture examination. Patho-anatomic lesions were observed in five rooks (2.6%), M. avium was isolated from 10 rooks (5.3%). Positive findings occurred in each examined locality. Rook sensitivity to M. avium infection was tested by experimental infections. After intramuscular infection with M. avium suspension macroscopic tuberculosis lesions were found out at the place of puncture, histological lesions in liver and spleen at the beginning of the trial (days 12-35). Mycobacteria were isolated from particular organs and tissues, more frequently at the beginning of the trial. Peroral infection by feed contaminated with liver of tuberculous fowl failed to induce tuberculous lesions, while a proof of M. avium from the organs was the only one after 157 days. The contact of the rook with the tuberculous fowl did not lead to the origin of tuberculous lesions after 238 days nor were the mycobacteria proved in the rook tissues. In comparison with e.g. the house sparrow, tree sparrow and pheasant, the roo...Continue Reading

Related Concepts

Trending Feeds


Coronaviruses encompass a large family of viruses that cause the common cold as well as more serious diseases, such as the ongoing outbreak of coronavirus disease 2019 (COVID-19; formally known as 2019-nCoV). Coronaviruses can spread from animals to humans; symptoms include fever, cough, shortness of breath, and breathing difficulties; in more severe cases, infection can lead to death. This feed covers recent research on COVID-19.


Blastomycosis fungal infections spread through inhaling Blastomyces dermatitidis spores. Discover the latest research on blastomycosis fungal infections here.

Nuclear Pore Complex in ALS/FTD

Alterations in nucleocytoplasmic transport, controlled by the nuclear pore complex, may be involved in the pathomechanism underlying multiple neurodegenerative diseases including Amyotrophic Lateral Sclerosis and Frontotemporal Dementia. Here is the latest research on the nuclear pore complex in ALS and FTD.

Applications of Molecular Barcoding

The concept of molecular barcoding is that each original DNA or RNA molecule is attached to a unique sequence barcode. Sequence reads having different barcodes represent different original molecules, while sequence reads having the same barcode are results of PCR duplication from one original molecule. Discover the latest research on molecular barcoding here.

Chronic Fatigue Syndrome

Chronic fatigue syndrome is a disease characterized by unexplained disabling fatigue; the pathology of which is incompletely understood. Discover the latest research on chronic fatigue syndrome here.

Evolution of Pluripotency

Pluripotency refers to the ability of a cell to develop into three primary germ cell layers of the embryo. This feed focuses on the mechanisms that underlie the evolution of pluripotency. Here is the latest research.

Position Effect Variegation

Position Effect Variagation occurs when a gene is inactivated due to its positioning near heterochromatic regions within a chromosome. Discover the latest research on Position Effect Variagation here.

STING Receptor Agonists

Stimulator of IFN genes (STING) are a group of transmembrane proteins that are involved in the induction of type I interferon that is important in the innate immune response. The stimulation of STING has been an active area of research in the treatment of cancer and infectious diseases. Here is the latest research on STING receptor agonists.


Microbicides are products that can be applied to vaginal or rectal mucosal surfaces with the goal of preventing, or at least significantly reducing, the transmission of sexually transmitted infections. Here is the latest research on microbicides.