Zobrazeno 1 - 10
of 117
pro vyhledávání: '"Alexandra Harlander"'
Publikováno v:
Royal Society Open Science, Vol 11, Iss 3 (2024)
Individual variation in fearfulness can be modified during ontogeny, and high levels of fear can affect animal welfare. We asked whether early-life environmental complexity and genetic strain affect fear behaviour in young laying hens (pullets). Four
Externí odkaz:
https://doaj.org/article/7a2dce0e00404e24acf1bdf1e1ada83e
Autor:
Grace A.T. Hong, Bret W. Tobalske, Nienke van Staaveren, Emily M. Leishman, Tina Widowski, Donald R. Powers, Alexandra Harlander-Matauschek
Publikováno v:
Poultry Science, Vol 103, Iss 3, Pp 103375- (2024)
ABSTRACT: Domestic laying hens rely primarily on their hindlimbs for terrestrial locomotion. Although they perform flapping flight, they appear to use maximal power during descent and thus may lack control for maneuvering and avoiding injuries on lan
Externí odkaz:
https://doaj.org/article/d9d4c969ba0c4de18cb0f7cca4a5290a
Autor:
Ana K. Rentsch, Erin Ross, Alexandra Harlander, Lee Niel, Janice M. Siegford, Tina M. Widowski
Publikováno v:
Scientific Reports, Vol 13, Iss 1, Pp 1-14 (2023)
Abstract Adult laying hens are increasingly housed in spatially complex systems, e.g., non-cage aviaries, where locomotion between elevated structures can be challenging for these gallinaceous birds. This study assessed the effect of early environmen
Externí odkaz:
https://doaj.org/article/7df76c3e23494f72b875fd0ba4accf33
Autor:
Grace A. T. Hong, Bret W. Tobalske, Nienke van Staaveren, Emily M. Leishman, Tina M. Widowski, Donald R. Powers, Alexandra Harlander-Matauschek
Publikováno v:
Royal Society Open Science, Vol 10, Iss 11 (2023)
In flying birds, the pectoralis (PECT) and supracoracoideus (SUPRA) generate most of the power required for flight, while the wing feathers create the aerodynamic forces. However, in domestic laying hens, little is known about the architectural prope
Externí odkaz:
https://doaj.org/article/796649d621e8445a9a7531394ab39f86
Autor:
Emily M. Leishman, Ryley J. Vanderhout, Emhimad A. Abdalla, Nienke van Staaveren, Anna Naim, Shai Barbut, Benjamin J. Wood, Alexandra Harlander-Matauschek, Christine F. Baes
Publikováno v:
Scientific Reports, Vol 13, Iss 1, Pp 1-10 (2023)
Abstract Robustness can refer to an animal’s ability to overcome perturbations. Intense selection for production traits in livestock has resulted in reduced robustness which has negative implications for livability as well as production. There is i
Externí odkaz:
https://doaj.org/article/418664df9caa4ee3adbb60db6f988eb1
Autor:
Nienke van Staaveren, Bret W. Tobalske, Jacob Brost, Rahul Sharma, Hugues Beaufrère, Audrey Elias, Alexandra Harlander-Matauschek
Publikováno v:
Poultry Science, Vol 102, Iss 8, Pp 102794- (2023)
ABSTRACT: Birds use their legs and wings when transitioning from aerial to ground locomotion during landing. To improve our understanding of the effects of footpad dermatitis (FPD) and keel bone fracture (KBF) upon landing biomechanics in laying hens
Externí odkaz:
https://doaj.org/article/37ea22b3ebb74f7c9865fd92f653d1c6
Autor:
Ana K. Rentsch, Alexandra Harlander, Janice M. Siegford, Isabela Vitienes, Bettina M. Willie, Tina M. Widowski
Publikováno v:
Frontiers in Animal Science, Vol 4 (2023)
IntroductionTo prepare laying hens for life in cage-free aviaries, they must be reared in aviaries that accustom them to the challenges of navigating a complex three-dimensional structure. Rearing aviaries vary in design and contain a brooding compar
Externí odkaz:
https://doaj.org/article/b3f99cdafc504bcbb81a36dc0efde992
Autor:
Renée C. Garant, Bret W. Tobalske, Neila Ben Sassi, Nienke van Staaveren, Dan Tulpan, Tina Widowski, Donald R. Powers, Alexandra Harlander-Matauschek
Publikováno v:
Royal Society Open Science, Vol 10, Iss 1 (2023)
Domestic chickens may live in environments which restrict wing muscle usage. Notably, reduced wing activity and accompanying muscle weakness are hypothesized risk factors for keel bone fractures and deviations. We used radio-frequency identification
Externí odkaz:
https://doaj.org/article/ad5361f340cc4db3b2094c91a49adf49
Autor:
Claire Mindus, Nienke van Staaveren, Dietmar Fuchs, Johanna M. Gostner, Joergen B. Kjaer, Wolfgang Kunze, M. Firoz Mian, Anna K. Shoveller, Paul Forsythe, Alexandra Harlander-Matauschek
Publikováno v:
Scientific Reports, Vol 11, Iss 1, Pp 1-15 (2021)
Abstract In mammals, early-life probiotic supplementation is a promising tool for preventing unfavourable, gut microbiome-related behavioural, immunological, and aromatic amino acid alterations later in life. In laying hens, feather-pecking behaviour
Externí odkaz:
https://doaj.org/article/f182391a037a43ce94bdf3115bf5e692
Autor:
Emily M. Leishman, Benjamin J. Wood, Christine F. Baes, Alexandra Harlander-Matauschek, Nienke van Staaveren
Publikováno v:
Poultry Science, Vol 101, Iss 11, Pp 102137- (2022)
The present study investigated the prevalence and co-occurrence of integument injuries in Canadian turkeys. Participating farmers scored 30 birds in their flock for integument injuries to the head/neck (HN), back/tail (BT), and footpad (FP) using a s
Externí odkaz:
https://doaj.org/article/c3f852182666488a9761316bbfa97e14