Vocalisations as a potential indicator of parturition in C57BL/6J mice.
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| Titel: | Vocalisations as a potential indicator of parturition in C57BL/6J mice. |
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| Autoren: | Capas-Peneda, Sara1,2 sara.capas@i3s.up.pt, Ferreira, Ana1, Gilbert, Colin3, Prins, Jan-Bas4, Vanderplank, Ashley5, Rosati, Giorgio6, Garzola, Marco6, Olsson, Ingrid Anna Sofia1, Morello, Gabriela Munhoz1 |
| Quelle: | Animal Welfare. 2025, Vol. 34, p1-11. 11p. |
| Publikationsart: | Article |
| Schlagworte: | Parturition, Laboratory mice, Animal breeding, Detection algorithms, Sounds, Laboratory rodents |
| Author-Supplied Keywords: | Animal welfare breeding C57BL/6J home cage monitoring system laboratory mouse parturition vocal communication |
| Abstract: | Breeding management in laboratory rodents is challenging, particularly around parturition and the neonatal period, where cage disturbance is often avoided in an attempt to limit neonatal mortality. Nevertheless, cage-side observations and single daily checks frequently underestimate pup numbers born and miss parturition complications. Home Cage Monitoring (HCM) systems are gaining popularity in animal facilities, detecting critical events such as food availability and activity levels. Parturition is a complex event involving specific patterns of behaviour, activity and vocalisations. In this study, audio and video data were collected from parturition events of single-housed C57BL/6J females and breeding pairs housed in a prototype rack with integrated microphones. Vocalisations were detected during parturition in both housing conditions, with minimal vocalisations observed prior to parturition, except for ultrasonic sounds in pair-housed mice (Mus musculus). After parturition, all vocalisations gradually decreased. Despite limitations such as the need for post-event analysis and the focus on a single mouse strain, this study suggests that detecting vocalisations can be a promising basis for developing automated parturition detection. This highlights the potential of HCM systems for improving breeding management and welfare in laboratory rodent colonies. [ABSTRACT FROM AUTHOR] |
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| Author Affiliations: | 1i3S – Instituto de Investigação e Inovação em Saúde da Universidade do Porto, Porto, Portugal. 2ICBAS – School of Medicine and Biomedical Sciences, Universidade do Porto, Porto, Portugal. 3The Babraham Institute, Cambridge, UK. 4Leiden University Medical Center, Leiden, The Netherlands. 5The Francis Crick Institute, London, UK. 6Tecniplast S. p. A., Buguggiate, Italy. |
| ISSN: | 0962-7286 |
| DOI: | 10.1017/awf.2025.10022 |
| Dokumentencode: | 190421140 |
| Datenbank: | Veterinary Source |
| Abstract: | Breeding management in laboratory rodents is challenging, particularly around parturition and the neonatal period, where cage disturbance is often avoided in an attempt to limit neonatal mortality. Nevertheless, cage-side observations and single daily checks frequently underestimate pup numbers born and miss parturition complications. Home Cage Monitoring (HCM) systems are gaining popularity in animal facilities, detecting critical events such as food availability and activity levels. Parturition is a complex event involving specific patterns of behaviour, activity and vocalisations. In this study, audio and video data were collected from parturition events of single-housed C57BL/6J females and breeding pairs housed in a prototype rack with integrated microphones. Vocalisations were detected during parturition in both housing conditions, with minimal vocalisations observed prior to parturition, except for ultrasonic sounds in pair-housed mice (Mus musculus). After parturition, all vocalisations gradually decreased. Despite limitations such as the need for post-event analysis and the focus on a single mouse strain, this study suggests that detecting vocalisations can be a promising basis for developing automated parturition detection. This highlights the potential of HCM systems for improving breeding management and welfare in laboratory rodent colonies. [ABSTRACT FROM AUTHOR] |
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| ISSN: | 09627286 |
| DOI: | 10.1017/awf.2025.10022 |