| experimental inoculation of chickens with gull-derived low pathogenic avian influenza virus subtype h16n3 causes limited infection. | the infectivity, transmission, and pathogenicity potential of avian influenza virus (aiv) subtype h16n3, isolated from the european herring gull (larus argentatus), was examined in chickens. nineteen 6-wk-old commercial lohmann white chickens were inoculated intranasally with 1 x 10(6) 50% egg infectious dose and clinical signs, humoral immune response, virus shedding, virus transmission, and pathologic changes in the respiratory tract were studied. oropharyngeal and cloacal swabs were collected ... | 2011 | 22312991 |
| oxygen isotope fractionation between bird bone phosphate and drinking water. | oxygen isotope compositions of bone phosphate (δ(18)op) were measured in broiler chickens reared in 21 farms worldwide characterized by contrasted latitudes and local climates. these sedentary birds were raised during an approximately 3 to 4-month period, and local precipitation was the ultimate source of their drinking water. this sampling strategy allowed the relationship to be determined between the bone phosphate δ(18)op values (from 9.8 to 22.5‰ v-smow) and the local rainfall δ(18)ow values ... | 2017 | 28534252 |
| characterization of ahr agonists reveals antagonistic activity in european herring gull (larus argentatus) eggs. | european herring gull (larus argentatus) eggs from two norwegian islands, musvær in the south east and reiaren in northern norway, were screened for dioxins, furans, and dioxin-like and selected non-dioxin-like polychlorinated biphenyls (pcbs), and subjected to non-target analysis to try to identify the aryl hydrocarbon receptor (ahr) agonists, responsible for elevated levels measured using the dioxin responsive chemically activated luciferase expression (dr-calux) assay. eggs from musvær contai ... | 2015 | 25666281 |
| a broad cocktail of environmental pollutants found in eggs of three seabird species from remote colonies in norway. | eggs of 3 seabird species, common eider (somateria mollisima), european shag (phalacrocorax aristotelis aristotelis), and european herring gull (larus argentatus), were surveyed for a broad range of legacy and emerging pollutants to assess chemical mixture exposure profiles of seabirds from the norwegian marine environment. in total, 201 chemical substances were targeted for analysis ranging from metals, organotin compounds, polycyclic aromatic hydrocarbons (pahs), polychlorinated biphenyls (pcb ... | 2015 | 25728907 |
| aryl hydrocarbon receptor agonists in european herring gull (larus argentatus) eggs from norway. | herring gull eggs from two locations in norway, an island situated in the north (musvær, 69.88° n, 18.55° e) and an island in the southeast (reiaren, 59.15° n, 10.46° e) of the country, were analyzed for the presence of aryl hydrocarbon receptor (ahr) agonists. ahr agonist activity was determined using the dioxin-responsive chemically activated luciferase expression (dr-calux) assay to calculate the toxic equivalent quotient (teq)calux. teqcalux ranged from 16 to 401 pg teq/g lipid in the sample ... | 2014 | 24754391 |