Results 61 to 70 of about 11,770 (213)
The Bursa of Fabricius and Homograft Immunity
Poultry Science, 1965 Abstract Hieronymus Fabricius (1621) reported the existence of a sac in the podex of the hen which he believed served as a semen receptable. (Apparently he didn’t notice its presence in cocks). Named the Bursa of Fabricius in his honour, the function of this organ was unknown until the discovery of its role in antibody production by a remarkable ...
openaire +2 more sources
Phylogeny, systematics and evolution of mimicry patterns in Neotropical limenitidine butterflies
Systematic Entomology, Volume 51, Issue 1, January‐March 2026.The most comprehensive phylogeny for Adelpha reveals that it is not monophyletic, supporting the description of the new genus Adelphina for the alala‐group. The rate of mimicry evolution increases towards the tropics, consistent with the hypothesis of stronger biotic interactions near the equator.
Erika Páez V. +17 more
wiley +1 more source
Histomorphology of bursa of Fabricius: effects of stock densities on commercial broilers
Brazilian Journal of Poultry Science, 2006 During the past few years, there has been considerable interest on the effects of stocking density on broiler behavior and immunity. Stress may cause immunodeficiency by affecting cell and humoral responses, as well as body weight decrease, and foot-pad ...
EC Muniz +4 more
doaj +1 more source
Female plumage spottiness signals parasite resistance in the barn owl (Tyto alba) [PDF]
, 2017 The hypothesis that extravagant ornaments signal parasite resistance has received support in several species for ornamented males but more rarely for ornamented females.
Dijkstra, Cor +3 more
core
Systematic Entomology, Volume 51, Issue 1, January‐March 2026.First comprehensive phylogenomic study of subtribe Eurynotina using a combined dataset of 499 nuclear loci, 12 mitochondrial loci and 91 morphological characters covering all genera and species groups is presented. Eurynotina is monophyletic and genera within are redefined based on reassessment of old characters, generation of new characters, and ...
Ryan Lumen +3 more
wiley +1 more source
Molecular Characteristics and Pathogemcity Of The Infectious Bursal Disease Virus Isolated In Malaysia [PDF]
, 2006 Infectious bursa1 disease (IBD) is an acute viral disease of young chicken and causes serious treat in poultry industry worldwide due to high mortality and immunosuppression.
Rachmat, Roosevien Farida Nilawati
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Advanced Gut &Microbiome Research, Volume 2026, Issue 1, 2026.The avian gut microbiota constitutes a complex, multiphyla ecosystem that critically shapes host physiology, immune function, disease resistance, and antimicrobial resistance dynamics. Bacteria, archaea, fungi, and viruses collectively regulate nutrient metabolism, mucosal barrier integrity, and immunological maturation, whereas dysbiosis increases ...
Adetolase Azizat Bakre +3 more
wiley +1 more source
Molecular Characterisation Of Infectious Bursal Disease Virus And Expression Of Vp2 Protein For The Development Of Diagnostic Kit And Recombinant Vaccine [PDF]
, 2008 Outbreak of infectious bursal disease (IBD) in chickens due to highly pathogenic strain of IBD virus (vvIBDV) was first reported in Europe in late 1980’s and in Malaysia in 1991.
Mat Isa, Nurulfiza
core
The Transcriptional Landscape of Marek’s Disease Virus in Primary Chicken B Cells Reveals Novel Splice Variants and Genes [PDF]
, 2019 Marek’s disease virus (MDV) is an oncogenic alphaherpesvirus that infects chickens and poses a serious threat to poultry health. In infected animals, MDV efficiently replicates in B cells in various lymphoid organs.
Bertzbach, Luca D. +7 more
core +2 more sources
A transmissible disease of the bursa of Fabricius of ducks [PDF]
Avian Pathology, 1994 Longitudinal surveys of commercial Pekin ducks from four farms with a history of poor flock performance and high mortality rate showed that there was lymphoid depletion of the bursa of Fabricius in most ducks selected from 7 days of age onward. Such lesions were not present in Pekin ducks from a farm with a history of good flock performance and low ...
J A, Smyth, M S, McNulty
openaire +2 more sources