Results 31 to 40 of about 3,636 (171)
Feather corticosterone reveals stress associated with dietary changes in a breeding seabird. [PDF]
Ecol Evol, 2015 AbstractChanges in climate and anthropogenic pressures might affect the composition and abundance of forage fish in the world's oceans. The junk‐food hypothesis posits that dietary shifts that affect the quality (e.g., energy content) of food available to marine predators may impact their physiological state and consequently affect their fitness ...
Will A +11 more
europepmc +5 more sources
Elevated corticosterone in feathers correlates with corticosterone‐induced decreased feather quality: a validation study [PDF]
Journal of Avian Biology, 2011 The newly described technique of extracting corticosterone (CORT) from bird feathers may serve as a less invasive, more integrated measure of a bird's stress response. Previous work indicated that elevated plasma CORT resulted in poorer quality feathers during molt.
Christine R. Lattin +3 more
openaire +1 more source
Feather corticosterone reveals developmental stress in seabirds [PDF]
Journal of Experimental Biology, 2014 Abstract In nest-bound avian offspring food shortages typically trigger a release of the stress hormone corticosterone (CORT). Recent studies indicate that CORT is passively deposited in the tissue of growing feathers and thus may provide an integrated measure of stress incurred during development in the nest.
Alexis P, Will +5 more
openaire +2 more sources
Animals, 2022 The scientific community needs objective measures to appropriately assess animal welfare. The study objective was to assess the impact of housing system on novel physiological and behavioral measurements of animal welfare for laying hens, including ...
Andrew M. Campbell +3 more
doaj +1 more source
Phenotypic signatures of urbanization are scale-dependent : a multi-trait study on a classic urban exploiter [PDF]
, 2020 Understanding at which spatial scales anthropogenic selection pressures operate most strongly is a prerequisite for efficient conservation and management of urban biodiversity.
Aerts, Johan +5 more
core +2 more sources
Poultry Science, 2022 : Noninvasive biomarkers of stress that are predictive of poultry health are needed. Feather pulp is highly vascularized and represents a potential source of biomarkers that has not been extensively explored.
Catherine L.J. Brown +2 more
doaj +1 more source
Quantifying corticosterone in feathers: validations for an emerging technique [PDF]
Conservation Physiology, 2018 Feather corticosterone measurement is becoming a widespread tool for assessing avian physiology. Corticosterone is deposited into feathers during growth and provides integrative and retrospective measures of an individual's hypothalamic-pituitary-adrenal (HPA) axis function.
Freeman, Nikole E, Newman, Amy E M
openaire +2 more sources
Journal of Applied Poultry Research, 2020 SUMMARY: Physiological stress is known to promote economic losses by causing immunosuppression. Various factors induce stress, including non-optimal management and infection with various pathogens. The concentration of the stress hormone, corticosterone,
I. Davidson +6 more
doaj +1 more source
Poultry Science, 2020 Studies indicate that the evaluation of animal welfare in birds may be carried out with the measurement of the stress-related hormone corticosterone in feathers.
K.E. Häffelin +8 more
doaj +1 more source
Tracking stress: localisation, deposition and stability of corticosterone in feathers [PDF]
Journal of Experimental Biology, 2009 SUMMARY How animals cope with stressors is an important determinant of their well being and fitness. Understanding what environmental perturbations are perceived as stressors, and quantifying how they are responded to, how often they occur and the negative consequences of exposure to glucocorticoids, has been problematic and limited to ...
Bortolotti, Gary R. +3 more
openaire +3 more sources