The Effect of Egg Laying on Feather and Plasma Corticosterone Concentrations in Turkey (Meleagris gallopavo) Hens
| Autor: | Amy E. M. Newman, Christine F. Baes, Benjamin J. Wood, Jeff Mohr, Emily M. Leishman, Alexandra Harlander-Matauschek, Nienke van Staaveren, Nikole E. Freeman |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
0106 biological sciences
High energy Veterinary medicine Biology 010603 evolutionary biology 01 natural sciences Egg laying chemistry.chemical_compound stress Animal science Corticosterone SF600-1100 Energy demand General Veterinary 630 Agriculture avian poultry 0402 animal and dairy science 04 agricultural and veterinary sciences biology.organism_classification 040201 dairy & animal science welfare chemistry QL1-991 Feather visual_art breeding visual_art.visual_art_medium 590 Animals (Zoology) biomarker Animal Science and Zoology Plasma corticosterone glucocorticoid Purebred Meleagris gallopavo Zoology |
| Zdroj: | Animals Volume 11 Issue 7 Animals, Vol 11, Iss 1892, p 1892 (2021) Leishman, Emily M; van Staaveren, Nienke; Mohr, Jeff; Wood, Benjamin J; Freeman, Nikole E; Newman, Amy E M; Harlander-Matauschek, Alexandra; Baes, Christine F (2021). The Effect of Egg Laying on Feather and Plasma Corticosterone Concentrations in Turkey (Meleagris gallopavo) Hens. Animals, 11(7) MDPI 10.3390/ani11071892 |
| ISSN: | 2076-2615 |
| DOI: | 10.3390/ani11071892 |
| Popis: | Phenological differences in energy demand (i.e., reproductive status) might influence the measurement of corticosterone. The objective of this study was to compare corticosterone concentrations in feathers (FCORT) and plasma (PCORT) for turkey hens before and during egg laying. Secondary feathers 1 and 3, and a plasma sample were collected from 50 hens at 30 weeks (before egg laying) from two purebred lines. The hens were reexamined during lay (45 weeks) to collect regrown feathers and plasma samples. Corticosterone concentrations were measured using an ELISA. Linear mixed models were used to assess the effect of genetic line (A vs. B) and period (pre-lay vs. lay) on FCORT and PCORT levels. An increase in FCORT during lay was detected for line B (p < 0.0001), but not line A (p = 0.3076). An increase in FCORT during lay was detectable in both feather types, but there was a difference between secondary 1 and 3 in FCORT concentration within each line studied. Conversely, PCORT decreased between the pre-lay and lay periods for both lines, although the decrease was more substantial for line A (p < 0.0001). Differences in metabolic investment in egg production between the two genetic lines may explain the different FCORT response during lay. The results from this study provide insight into how periods of high energy demand may influence corticosterone which should be considered when interpreting results. |
| Databáze: | OpenAIRE |
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