Genetic parameter estimation and molecular foundation of chicken beak shape [PDF]
Poultry Science: The bird beak is mainly functioned as feeding and attacking, and its shape has extremely important significance for survival and reproduction. In chickens, since beak shape could lead to some disadvantages including pecking and waste of feed, it is ...
Anqi Chen +19 more
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Determining the variation in premaxillary and dentary bone morphology that may underlie beak shape between two pure layer lines [PDF]
Poultry Science, 2021 : Beak treatment is an effective method of reducing the damage inflicted by severe feather pecking (SFP) but there is significant pressure to eliminate these treatments and rely solely on alternative strategies. Substantial variation in beak shape exists
S. Struthers +7 more
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An analysis of the maxillary beak shape variation between 2 pure layer lines and its relationship to the underlying premaxillary bone, feather cover, and mortality [PDF]
Poultry Science, 2023 : Beak shape varies considerably within and between intact-beak laying hens, and aspects of beak shape appear to be heritable. As an alternative to beak treatment (an effective method of reducing damage from severe feather pecking (SFP)), this variation ...
S. Struthers +8 more
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An analysis of beak shape variation in two ages of domestic turkeys (Meleagris gallopavo) using landmark-based geometric morphometrics. [PDF]
PLoS ONE, 2017 The objective of this study was to assess beak shape variation in domestic turkeys (Meleagris gallopavo) and determine the effects of age, sex, and beak size on beak shape variation using geometric morphometrics.
Hillary A Dalton +4 more
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Sexual Monomorphism and Size‐Related Shape Change in the Beak of the Greater Flamingo (Phoenicopterus roseus) [PDF]
Veterinary Medicine and ScienceBackground The avian beak is a functionally important structure shaped by ecological demands. In highly specialized filter‐feeders such as flamingos, subtle variation in beak size and shape may influence feeding performance.
Ebuderda Günay +8 more
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Poultry Science, 2020 Despite previous research on the impacts of beak treatment on laying hens, little information exists regarding how variation in beak morphology that can occur following beak treatment affects production, behavior, and welfare.
C. Hughes +5 more
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Poultry Science, 2022 : Controlling injurious pecking in commercial turkeys remains a significant challenge to producers and the industry. Infrared beak treatment is an effective method of controlling injurious pecking in chickens; however, the effects of infrared beak ...
S. Struthers +5 more
doaj +3 more sources
A True Bug with a True but Unique Chela in 100 Million-Year-Old Amber [PDF]
InsectsGrasping appendages in representatives of the group Insecta are usually of the sub-chelate (jackknifing) type. Only rarely do chelate appendages occur: Carcinothrips (Thysanoptera), Dryinidae (Hymenoptera), and Carcinocorini (Heteroptera).
Carolin Haug +4 more
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Fixation for calcaneal tuberosity fracture (beak fracture) using preformed “L-shape” hook plate [PDF]
Frontiers in SurgeryObjectivesSurgical management of calcaneal tuberosity fractures is challenging, as patient outcomes can be compromised by skin flap necrosis and implant failure.
Qiang Zhang, Wei Huang, Zongde Wu
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Predicting ‘sagittally unstable intertrochanteric fractures’ that require direct manipulation for reduction: a fracture morphology analysis [PDF]
Scientific ReportsSagittally unstable intertrochanteric fracture (SUITF) is the posterior displacement of the shaft fragment (posterior sagging, [PS]) which causes difficulty in achieving an acceptable closed reduction in lateral view.
Eic Ju Lim +7 more
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