Results 21 to 30 of about 137,387 (310)
Formaldehyde (FA), a ubiquitous environmental pollutant, has long been suspected to possess reproductive toxicity. Here, we investigated the histopathological alteration of male gonads following exposure to FA-contaminated feed (40% aqueous solution of ...
Mohammad Rabiul Karim +4 more
doaj +1 more source
Categories, concepts, and calls : auditory perceptual mechanisms and cognitive abilities across different types of birds. [PDF]
Although involving different animals, preparations, and objectives, our laboratories (Sturdy's and Cook's) are mutually interested in category perception and concept formation.
Cook, Robert +4 more
core +1 more source
The pigeon’s concept of pigeon [PDF]
Pigeons were trained to discriminate between the presence and absence of a pigeon in photographic displays projected on a response key. Irrelevant cues were reduced as much as possible, while the differences between the objects were of sufficient variety and complexity to ensure that mastery of the discrimination would require the use of a concept. The
Jean Poole, D. G. Lander
openaire +1 more source
Newcastle disease is an acute fatal disease of poultry. The aim of this study was to determine the dynamics of the transmission of avian avulavirus (velogenic viscerotropic Newcastle disease-genotype VIId) from either intramuscularly (IM)- or ...
Hany F. Ellakany +11 more
doaj +1 more source
The avian influenza virus (AIV) impacts poultry production, food security, livelihoods, and the risk of transmission to humans. Poultry, like pigeons and quail farming, is a growing sector in Bangladesh.
Ariful Islam +11 more
doaj +1 more source
Molecular characterization of Trichomonas gallinae isolates recovered from the Canadian Maritime provinces’ wild avifauna reveals the presence of the genotype responsible for the European finch trichomonosis epidemic and additional strains [PDF]
Finch trichomonosis, caused by Trichomonas gallinae, emerged in the Canadian Maritime provinces in 2007 and has since caused ongoing mortality in regional purple finch (Carpodacus purpureus) and American goldfinch (Carduelis tristis) populations ...
BECKI LAWSON +10 more
core +2 more sources
Extrachromosomal circular DNA (eccDNA) elements of chromosomal origin are known to be common in a number of eukaryotic species. However, it remains to be addressed whether genomic features such as genome size, the load of repetitive elements within a ...
Henrik D. Møller +4 more
semanticscholar +1 more source
Osteological characters for the identification of Caribbean columbids
Columbid remains are commonly recovered from Caribbean archaeological and paleontological sites. Identifying specimens to species level is therefore likely to yield a wealth of information concerning species diversity and changes in their distribution ...
Monica Gala +2 more
doaj +1 more source
Pigeons discriminate continuous versus discontinuous line segments [PDF]
Three experiments examined various facets of the perception of continuous and discontinuous line segments in pigeons. Pigeons were presented with 2 straight lines that were interrupted by a gap.
Johnston, Siobhan +2 more
core +1 more source
Pigeon breeders’ lung: pigeon intestinal mucin, an antigen distinct from pigeon IgA [PDF]
SUMMARY Antigens identified by indirect immunofluorescence staining and specific for sera from patients with pigeon breeders’ lung or healthy pigeon breeders, have been isolated from pigeon intestinal mucus. Two antigenic peaks, one pigeon intestinal mucin and the other IgA, were separated by equilibrium centrifugation of water-soluble ...
A, Todd, R M, Coan, A, Allen
openaire +2 more sources

