Effect of housing conditions and owner’s schedule on daily total locomotor activity in dogs (<i>Canis familiaris</i>)

Piccione, Giuseppe; Arfuso, Francesca; Giannetto, Claudia; Faggio, Caterina; Panzera, Michele

doi:10.1080/09291016.2012.756254

Cited by 13 publications

(8 citation statements)

References 25 publications

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“…Significantly higher activity for female dogs, compared to male dogs, was seen during the evening peak and shorter periods overnight. This has not been previously reported, as many previous studies did not specify the sex of the dogs included 37 or did not evaluate for sex differences 7,8,22 .…”

Section: Discussionmentioning

confidence: 72%

A functional linear modeling approach to sleep–wake cycles in dogs

Woods

Patel

et al. 2020

Sci Rep

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The study of companion (pet) dogs is an area of great translational potential, as they share a risk for many conditions that afflict humans. Among these are conditions that affect sleep, including chronic pain and cognitive dysfunction. Significant advancements have occurred in the ability to study sleep in dogs, including development of non-invasive polysomnography; however, basic understanding of dog sleep patterns remains poorly characterized. The purpose of this study was to establish baseline sleep–wake cycle and activity patterns using actigraphy and functional linear modeling (FLM), for healthy, adult companion dogs. Forty-two dogs were enrolled and wore activity monitors for 14 days. FLM demonstrated a bimodal pattern of activity with significant effects of sex, body mass, and age; the effect of age was particularly evident during the times of peak activity. This study demonstrated that FLM can be used to describe normal sleep–wake cycles of healthy adult dogs and the effects of physiologic traits on these patterns of activity. This foundation makes it possible to characterize deviations from normal patterns, including those associated with chronic pain and cognitive dysfunction syndrome. This can improve detection of these conditions in dogs, benefitting them and their potential as models for human disease.

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Section: Discussionmentioning

confidence: 72%

A functional linear modeling approach to sleep–wake cycles in dogs

Woods

Patel

et al. 2020

Sci Rep

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“…Probably, the differences in the acrophase of the STT‐1 readings among cats and other mammalian species could be attributed to the behavioral rhythms of a species as part of its evolutionary adaptation. In particular, cats have been reported to have their main locomotor activity during the scotophase, contrary to dogs and horses that are diurnal species 30–32 …”

Section: Discussionmentioning

confidence: 99%

“…In particular, cats have been reported to have their main locomotor activity during the scotophase, contrary to dogs and horses that are diurnal species. [30][31][32] When abrupt loss of rhythmicity occurs, it generally is observed only in constant darkness in diurnal organisms and in constant light in nocturnal organisms, although the gradual loss of rhythmicity may occur in constant darkness and in constant light. When animals kept under different L/D cycles are transferred to constant light and constant darkness the reduction of rhythm robustness is due to impairment of the overt rhythm and not to deterioration of the circadian pacemaker.…”

Section: Groupsmentioning

confidence: 99%

Hospitalization disrupts the daily rhythm of tear production in cats

Pietro

Tabbì

Falcone

et al. 2022

Veterinary Ophthalmology

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Objective:The exposure to constant light during the hospitalization was investigated to verify its influence on the daily rhythmicity of Schirmer tear test I (STT I) in the Felis catus.Animal studied: One group (HG-hospitalized group) was consisted of 10 owned-cats hospitalized to perform a sterilization procedure and was exposed to a 24/0 light/dark (L/D) cycle; the cat control group (CG) was consisted of 10 staffowned cats living in an indoor environment (12/12 L/D cycle). Procedure:The STT I values was performed at 4 h intervals over a 48 h period (starting at 8:00 a.m. on Day 1 and finishing at 8:00 a.m. on Day 3) on the left (LE) and right (RE) eyes into two cat groups. A 35 x 5 mm commercial tear test strip was used to record tear production in millimeters wetting per minute (mm/min).Results: Multivariate for repeated measure analysis of variance (ANOVA) showed a statistically significant effect of time. No difference was found between LE and RE tear production, and between the two experimental conditions. Robust daily rhythmicity was exhibited by the STT I in both eyes during the entire monitoring period in control cats and only during the Day 1 in hospitalized cats.Conclusions: These data are a starting point for evaluating the imbalance of ocular physiology observed in hospitalized cats. Further studies on larger sample size and exposing the animals to various hospitalization procedures are needed to establish whether these alterations are caused by hospitalization procedures or by the light/dark schedules.

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“…The fact that the two evaluators scoring obtained identical rhythms exhibits a low inter-evaluators CV. On the other hand, the obtained LA rhythm has been validated by using an accurate accelerometer device (the Actiwatch-Mini ® ), previously used in different species including the goat, sheep, horse, rabbit, cow and dog (Bertolucci et al., 2008; Giannetto et al., 2010, 2018; Piccione et al., 2010, 2013). The Spearman Rank Correlation test also demonstrates the existence of a strong correlation between the two methods and the paired t-test confirmed the existence of the same period and acrophase.…”

Section: Discussionmentioning

confidence: 99%

Validation of locomotion scoring as a new and inexpensive technique to record circadian locomotor activity in large mammals

Farsi

Harti

Achaâban

et al. 2018

Heliyon

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BackgroundThe locomotor activity (LA) rhythm, widely studied in rodents, has not been fully investigated in large mammals. This is due to the high cost and the brittleness of the required devices. Alternatively, the locomotion scoring method (SM), consisting of attribution of a score to various levels of activity would be a consistent method to assess the circadian LA rhythm in such species.New methodTo test this, a SM with a score ranging from 0 to 5 has been developed and used in two domestic large mammals, the camel and the goat. One minute interval scoring was performed using visual screening and monitoring of infra-red camera recording videos and carried out by two evaluators.ResultsThe SM provides a clear daily LA rhythm that has been validated using an automate device, the Actiwatch-Mini. The obtained curves and actograms were indeed highly similar to those acquired from the Actiwatch-Mini. Moreover, there were no statistical differences in the period and acrophase. The period was exactly of 24.0h and the acrophases occurred at 12h05 ± 00h03 and 12h14 ± 00h07 for the camel and at 13h13 ± 00h09 and 12h57 ± 00h09 for the goat using SM and Actiwatch-Mini respectively.Comparison with existing methodsCompared to the automatic system, the SM is inexpensive and has the advantage of describing all types of performed movements.ConclusionsThe new developed SM is highly reliable and sufficiently accurate to assess conveniently the LA rhythm and specific behaviors in large mammals. This opens new perspectives to study chronobiology in animal models of desert, tropical and equatorial zones.

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Effect of housing conditions and owner’s schedule on daily total locomotor activity in dogs (Canis familiaris)

Cited by 13 publications

References 25 publications

A functional linear modeling approach to sleep–wake cycles in dogs

A functional linear modeling approach to sleep–wake cycles in dogs

Hospitalization disrupts the daily rhythm of tear production in cats

Validation of locomotion scoring as a new and inexpensive technique to record circadian locomotor activity in large mammals

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