M. F. Barrett

CONFLICT OF INTEREST STATEMENT The authors declare no conflicts of interest. REFERENCES & (2019) Recent advances in anesthesia. In: Equine Surgery. St. Louis, Missouri: Elsevier, pp. 301–306. , & (2011) Supracoronary approach for keratoma removal in horses: two cases. Equine Veterinary Education, 23, 489–493. , , , & (2011) Computed tomography or magnetic resonance imaging-assisted partial hoof wall resection for keratoma removal. Veterinary Surgery, 40, 708–714.

CONFLICT OF INTEREST STATEMENT The authors declare no conflicts of interest. Supporting Information Filename Description een13272-sup-0001-Figures.docxWord 2007 document , 31.1 KB Supplemental Figure 1. Distribution of ages for female Centris pallida bees. Age was determined by giving bees a score between 0 and 3 for qualitative assessments of mandible, wing and thorax hair wear (summing to values between 0 and 9, with 9 indicating maximum wear, and thus maximum relative age). Supplemental Figure 2.

Under a Creative Commons license open access Key words pullet chicken prenatal maladaptive behavior stress INTRODUCTION Worldwide, over seven billion laying hens are kept annually for egg production (Fernyhough et al., 2020). These hens are often kept under conditions that prevent opportunities to express species-specific behaviors like foraging. This lack of behavioral opportunities can lead to welfare problems and maladaptive behavior, such as feather pecking (FP).