Circadian rhythm in the cardiovascular system of domestic animals

Piccione, Giuseppe; Grasso, Fortunata; Giudice, Elisabetta

doi:10.1016/j.rvsc.2004.11.010

Cited by 23 publications

(15 citation statements)

References 40 publications

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“…IBI samples used for the calculation of baseline HRV parameters represented cardiac activity throughout the day on each farm, including the dark period. Samples chosen for analysis were balanced for three observation periods (09:00 a.m. to 16:00 p.m., 19:00 to 23:00 p.m., and 02:00 to 05:00 a.m.) for each animal on every investigated farm, since the time of the day influences cardiac activity [ 28 ].…”

Section: Methodsmentioning

confidence: 99%

Heart Rate and Heart Rate Variability in Dairy Cows with Different Temperament and Behavioural Reactivity to Humans

et al. 2015

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From the 1990s, extensive research was started on the physiological aspects of individual traits in animals. Previous research has established two extreme (proactive and reactive) coping styles in several animal species, but the means of reactivity with the autonomic nervous system (ANS) activity has not yet been investigated in cattle. The aim of this study was the characterization of cardiac autonomic activity under different conditions in cows with different individual characteristics. For this purpose, we investigated heart rate and ANS-related heart rate variability (HRV) parameters of dairy cows (N = 282) on smaller- and larger-scale farms grouped by (1) temperament and (2) behavioural reactivity to humans (BRH). Animals with high BRH scores were defined as impulsive, while animals with low BRH scores were defined as reserved. Cardiac parameters were calculated for undisturbed lying (baseline) and for milking bouts, the latter with the presence of an unfamiliar person (stressful situation). Sympathetic tone was higher, while vagal activity was lower in temperamental cows than in calm animals during rest both on smaller- and larger-scale farms. During milking, HRV parameters were indicative of a higher sympathetic and a lower vagal activity of temperamental cows as compared to calm ones in farms of both sizes. Basal heart rate did not differ between BRH groups either on smaller- or larger-scale farms. Differences between basal ANS activity of impulsive and reserved cows reflected a higher resting vagal and lower sympathetic activity of reserved animals compared to impulsive ones both on smaller- and larger-scale farms. There was no difference either in heart rate or in HRV parameters between groups during milking neither in smaller- nor in larger-scale farms. These two groupings allowed to draw possible parallels between personality and cardiac autonomic activity during both rest and milking in dairy cows. Heart rate and HRV seem to be useful for characterisation of physiological differences related to temperament and BRH.

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Section: Methodsmentioning

confidence: 99%

Heart Rate and Heart Rate Variability in Dairy Cows with Different Temperament and Behavioural Reactivity to Humans

et al. 2015

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“…In horses, the electrical activity of the heart showed daily rhythmicity. In particular daily fluctuations were observed in P-Q interval duration, QRS duration, Q wave amplitude, T wave duration and amplitude, S-T segment duration and Q-T duration (Piccione et al 2005d).…”

Section: Daily Rhythms Of Behaviour and Physiological Variables In Homentioning

confidence: 98%

State of the art on daily rhythms of physiology and behaviour in horses

Piccione

Giannetto

2011

Biological Rhythm Research

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This article reviews the literature on the daily rhythm in horses. Many physiological processes have been studied in horses to investigate their daily rhythmicity. In horses many rhythms are driven by an endogenous pacemaker, some of them endogenously generated, others influenced by external stimuli. It then addresses the influence of maturation and ageing, physical exercise and jet lag on these rhythms. The study of daily rhythms in horses is of considerable importance in all aspects of horse management to maintain the natural physiological behaviours of this species, necessary to guarantee the good welfare in breeding and athlete horses. Chronophysiology in horses also has clinical implications, it can influence disease occurrence, diagnostic tests and the effect of medical treatments.

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“…Animals are affected by diurnal and seasonal fluctuations of many physical factors of their environment (Piccione et al 2003;Chan et al 2016;Davimes et al 2016Davimes et al , 2017. Diurnal and seasonal rhythms in biochemical, metabolic, endocrine, physiological, and behavioral processes are a fundamental feature of all living organisms (Piccione et al 2005a). Adaptation capacity of mammals to the environmental changes resides in a master circadian clock located in the suprachiasmatic nuclei (SCN) of the anterior hypothalamus that serves as a relay between the environment and the body, regulating the oscillators in peripheral tissues (Silver and Kriegsfeld 2014).…”

Section: Introductionmentioning

confidence: 99%

Diurnal rhythms of heart and respiratory rates in donkeys of different age groups during the cold-dry and hot-dry seasons in a tropical savannah

et al. 2018

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The aim of this study was to determine the effect of season on diurnal rhythms of heart (HR) and respiratory rates (RespR) in the adult, yearling, and foal donkeys during the cold‐dry and hot‐dry seasons under natural light/dark cycle. The resting HR and RespR were recorded bihourly for 24 consecutive hours from 06:00 to 06:00 h (GMT +1) in 30, clinically healthy donkeys (10 adults,10 yearlings, and 10 foals). Dry‐bulb temperature (DBT), relative humidity (RH), temperature‐humidity index (THI) and wet‐bulb globe temperature index (WBGT) inside the pen were recorded bihourly from 06:00 to 06:00 h. Values of DBT, THI, and WBGT obtained during the hot‐dry season were significantly (P < 0.05) higher than corresponding values recorded during the cold‐dry season. Application of single‐cosinor procedure showed that HR and RespR exhibited daily rhythmicity in both seasons. The mesors of the HR in adult (41.51 ± 0.34 beats/min [bpm]), yearling (40.80 ± 0.43 bpm), and foal (47.55 ± 0.40 bpm) donkeys during the cold‐dry season were significantly (P < 0.01) lower, compared to the corresponding values of 48.4 ± 0.40 bpm, 50.42 ± 0.52 bpm and 58.10 ± 0.50 bpm, respectively during the hot‐dry season. The mesors of RespR in adult, yearling, and foal donkeys during the hot‐dry season were higher (P < 0.05), when compared to the corresponding values recorded in the cold‐dry season. The HR and RespR of foals were significantly (P < 0.05) higher than those of the adult and yearling donkeys. Amplitudes of HR and RespR were higher during the hot‐dry season than the cold‐dry season. In conclusion, seasonal changes affect diurnal rhythmicity of HR and RespR of adult, yearling, and foal donkeys during the cold‐dry and hot‐dry seasons. The HR and RespR of donkeys vary with age, with higher values in the foals than the adult and yearling donkeys in both seasons.

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Circadian rhythm in the cardiovascular system of domestic animals

Cited by 23 publications

References 40 publications

Heart Rate and Heart Rate Variability in Dairy Cows with Different Temperament and Behavioural Reactivity to Humans

Heart Rate and Heart Rate Variability in Dairy Cows with Different Temperament and Behavioural Reactivity to Humans

State of the art on daily rhythms of physiology and behaviour in horses

Diurnal rhythms of heart and respiratory rates in donkeys of different age groups during the cold-dry and hot-dry seasons in a tropical savannah

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