Zobrazeno 1 - 10
of 30
pro vyhledávání: '"Christopher J Byrd"'
Autor:
Javiera Calderón-Amor, Belén Zuleta, Maria Camila Ceballos, Daniel Cartes, Christopher J. Byrd, Benjamin Lecorps, Rocío Palomo, Sergio A. Guzmán-Pino, Daniela Siel, Daniela Luna
Publikováno v:
Animals, Vol 14, Iss 15, p 2217 (2024)
The human–animal relationship is crucial for animal welfare. Gentle handling enhances pigs’ comfort while rough handling causes fear and stress. This study examined how different human–animal relationship qualities affect the behavior and heart
Externí odkaz:
https://doaj.org/article/d46bd063cc3a4a59b9405281b5ced972
Autor:
Christopher J. Byrd, Jennifer M. Young
Publikováno v:
Frontiers in Animal Science, Vol 4 (2023)
This study evaluated whether leukocyte coping capacity (LCC) could be an effective method for detecting physiological stress in growing pigs who are exposed to a mild cycling heating period. We hypothesized that whole blood samples collected from pig
Externí odkaz:
https://doaj.org/article/1c1618b604a24c58a4e4776574798b72
Autor:
Jacob M. Maskal, Luiz F. Brito, Alan W. Duttlinger, Kouassi R. Kpodo, Betty R. McConn, Christopher J. Byrd, Brian T. Richert, Jeremy N. Marchant, Donald C. Lay, Shelbi D. Perry, Matthew C. Lucy, Tim J. Safranski, Jay S. Johnson
Publikováno v:
Scientific Reports, Vol 11, Iss 1, Pp 1-9 (2021)
Abstract In utero heat stress alters postnatal physiological and behavioral stress responses in pigs. However, the mechanisms underlying these alterations have not been determined. The study objective was to characterize the postnatal hypothalamic–
Externí odkaz:
https://doaj.org/article/529bd7c954bf4fdfb64d89e7ec3aeeb5
Autor:
Daniela Luna, Catalina González, Christopher J. Byrd, Rocío Palomo, Elizabeth Huenul, Jaime Figueroa
Publikováno v:
Animals, Vol 11, Iss 7, p 2140 (2021)
In this study, we addressed the social attentiveness, as well as the phenomenon of social facilitation and inhibition in the context of a positive human–pig relationship. Specifically, we investigated whether the social rank of an experienced pig (
Externí odkaz:
https://doaj.org/article/31ae53a0fe0a4bf78a377afcb9fc1aa3
Autor:
Daniela Luna, Catalina González, Christopher J. Byrd, Rocío Palomo, Elizabeth Huenul, Jaime Figueroa
Publikováno v:
Animals, Vol 11, Iss 1, p 127 (2021)
Farm animals can perceive humans positively by observing another animal being positively handled. This study evaluated whether pigs acquire a positive perception of humans after observing either a high or low socially ranked conspecific receiving gen
Externí odkaz:
https://doaj.org/article/f276fe17cbba4aa69ef7b6b0a6781e05
Publikováno v:
Journal of Animal Science. 101
Group gestation housing is quickly becoming standard practice in commercial swine production. However, poor performance and welfare in group housed sows may result from the formation and maintenance of the social hierarchy within the pen. In the futu
Autor:
Weilin L. Shelver, Shubhashis Chakrabarty, Jennifer M. Young, Christopher J. Byrd, David J. Smith
Publikováno v:
Food Additives & Contaminants: Part A. 39:462-474
Antemortem bodily fluids can serve as an indicator of veterinary medicine exposure prior to food animal slaughter. A multi-residue, rapid screen electrospray ionisation mass spectrometric (RS-ESI-MS) method was developed to analyse 10 veterinary drug
Autor:
Christopher J. Byrd, Nichole Chapel Anderson, Drew W. Lugar, Timothy J. Safranski, Matthew C. Lucy, Jay S. Johnson
Publikováno v:
Animals, Vol 9, Iss 4, p 191 (2019)
The study objective was to determine whether in utero heat stress (IUHS) affects piglet physiology and behavior following common production practices. A total of 12 gilts were confirmed pregnant and allocated to either heat stress (HS; n = 6) or ther
Externí odkaz:
https://doaj.org/article/704a9bcea768402eaca271652bf76bb9
Publikováno v:
Animal Welfare. 29:257-269
The purpose of this study was to evaluate whether linear and non-linear measures of heart rate variability (HRV) could be used as indicators of piglet castration pain. Thirty piglets were allocated to 1 of 4 treatments: i) sham castrated HRV (SHRV; n
Autor:
Christopher J Byrd, Betty R McConn, Brianna N Gaskill, Allan P Schinckel, Angela R Green-Miller, Donald C Lay, Jay S Johnson
Publikováno v:
J Anim Sci
Characterizing the sow physiological response to an increased heat load is essential for effective heat stress mitigation. The study objective was to characterize the effects of a 400-min heating episode on sow heart rate variability (HRV) at differe