The Digestive Tract of Cephalopods: Toward Non-invasive In vivo Monitoring of Its Physiology
MetadataShow full item record
AuthorsPonte, G. (Giovanna); Sykes, A. V. (Antonio); Cooke, G. M. (Gavan); Almansa, E. (Eduardo); Andrews, P. L. R. (Paul)
Ensuring the health and welfare of animals in research is paramount, and the normal functioning of the digestive tract is essential for both. Here we critically assess non- or minimally-invasive techniques which may be used to assess a cephalopod’s digestive tract functionality to inform health monitoring. We focus on: (i) predatory response as an indication of appetitive drive; (ii) body weight assessment and interpretation of deviations (e.g., digestive gland weight loss is disproportionate to body weight loss in starvation); (iii) oro-anal transit time requiring novel, standardized techniques to facilitate comparative studies of species and diets; (iv) defecation frequency and analysis of fecal color (diet dependent) and composition (parasites, biomarkers, and cytology); (v) digestive tract endoscopy, but passage of the esophagus through the brain is a technical challenge; (vi) high resolution ultrasound that offers the possibility of imaging the morphology of the digestive ...
The following license files are associated with this item: