SciELO - Scientific Electronic Library Online

 
vol.84 issue2The functional roles of herbivores in the rocky intertidal systems in Chile: A review of food preferences and consumptive effectsEffects of light availability and growth rate on leaf lifespan of four temperate rainforest Proteaceae author indexsubject indexarticles search
Home Pagealphabetic serial listing  

Services on Demand

Journal

Article

Indicators

Related links

Share


Revista chilena de historia natural

Print version ISSN 0716-078X

Abstract

PICCIONE, GIUSEPPE et al. Comparison between circadian motor activity in pony and horse. Rev. chil. hist. nat. [online]. 2011, vol.84, n.2, pp.263-268. ISSN 0716-078X.  http://dx.doi.org/10.4067/S0716-078X2011000200010.

In this study we investigated the influence of body mass on the daily rhythm of total motor activity in ponies and horses. Six clinically healthy Shetland pony breed with a body mass of 180 ± 30 kg and six healthy horses Sella Italiana breed with a body mass of 530 ± 20 kg were used. Animals were equipped with actigraphy-based data loggers, Actiwatch-Mini® to record total activity. The application of two-way ANOVA showed a highly significant effect of time of day and body mass on motor activity. Cosinor analysis identified the periodic parameters and their acrophases during the two days of monitoring. Mesor and amplitude were statistically higher in horses than in ponies and no statistically significant differences was found about acrophases and robustness. In conclusion we suppose that the difference in the amount of total motor activity, in animals that differ in breed, as pony and horse, may lie in physical differences.

Keywords : body mass; daily rhythm; Equus caballus; locomotor activity.

        · abstract in Spanish     · text in English     · English ( pdf )

 

Creative Commons License All the contents of this journal, except where otherwise noted, is licensed under a Creative Commons Attribution License