Bird-Specific Considerations

Paul-Murphy, Joanne R; Hawkins, Michelle G.

doi:10.1016/b978-0-323-08935-7.00026-0

Cited by 7 publications

(3 citation statements)

References 65 publications

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“…At present, it is generally accepted that birds are capable of nociception and can feel pain 1,2 . Several studies have established that birds have mechanothermal, mechanical and thermal nociceptors with high stimulus thresholds 2,3 .…”

Section: Introductionmentioning

confidence: 99%

Nociception in chicken embryos, Part III: Analysis of movements before and after application of a noxious stimulus

Suess

Werner

Saller

et al. 2023

Preprint

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Many potentially noxious interventions are performed on chicken embryos in research and in the poultry industry. It is therefore essential and in the interest of animal welfare to be able to precisely define the point at which a chicken embryo is capable of nociception in ovo. The present part III of a comprehensive study examined the movements of developing chicken embryos with the aim of identifying behavioral responses to a noxious stimulus. For this purpose, a noxious mechanical stimulus and a control stimulus were applied in a randomized order. The recorded movements of the embryos were evaluated using the markerless pose estimation software DeepLabCut and manual observations. After the application of the mechanical stimulus, a significant increase in beak movement was identified in 15- to 18-day-old embryos. In younger embryos, no behavioral changes related to the noxious stimulus were observed. The presented results results indicate that noxious mechanical stimuli at the beak base evoke a nocifensive reaction in chicken embryos starting at embryonic day 15.

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Section: Introductionmentioning

confidence: 99%

Nociception in chicken embryos, Part III: Analysis of movements before and after application of a noxious stimulus

Suess

Werner

Saller

et al. 2023

Preprint

View full text Add to dashboard Cite

show abstract

“…At present, it is generally accepted that birds are capable of nociception and can feel pain [ 1 , 2 ]. Several studies have established that birds have mechanothermal, mechanical and thermal nociceptors with high stimulus thresholds [ 2 , 3 ]. Furthermore, peripheral and central processing of a potentially noxious stimulus in birds occurs in a similar manner to that in mammals [ 4 ].…”

Section: Introductionmentioning

confidence: 99%

“…This makes it possible to assess deviations in typical behavior as a sign of pain [ 9 ]. Although pain-associated behavior is difficult to identify, its major advantage is that it can be observed immediately and noninvasively [ 3 , 9 ]. This makes behavioral observation an essential part of a comprehensive pain assessment in birds.…”

Section: Introductionmentioning

confidence: 99%

Nociception in Chicken Embryos, Part III: Analysis of Movements before and after Application of a Noxious Stimulus

Süß,

Werner,

Saller

et al. 2023

Animals

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Many potentially noxious interventions are performed on chicken embryos in research and in the poultry industry. It is therefore essential and in the interest of animal welfare to be able to precisely define the point at which a chicken embryo is capable of nociception in ovo. The present part III of a comprehensive study examined the movements of developing chicken embryos with the aim of identifying behavioral responses to a noxious stimulus. For this purpose, a noxious mechanical stimulus and a control stimulus were applied in a randomized order. The recorded movements of the embryos were evaluated using the markerless pose estimation software DeepLabCut and manual observations. After the application of the mechanical stimulus, a significant increase in beak movement was identified in 15- to 18-day-old embryos. In younger embryos, no behavioral changes related to the noxious stimulus were observed. The presented results indicate that noxious mechanical stimuli at the beak base evoke a nocifensive reaction in chicken embryos starting at embryonic day 15.

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Nervous System

Ritchison

2023

Fascinating Life Sciences

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Bird-Specific Considerations

Cited by 7 publications

References 65 publications

Nociception in chicken embryos, Part III: Analysis of movements before and after application of a noxious stimulus

Nociception in chicken embryos, Part III: Analysis of movements before and after application of a noxious stimulus

Nociception in Chicken Embryos, Part III: Analysis of Movements before and after Application of a Noxious Stimulus

Nervous System

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