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Melatonin circadian rhythm in three livestock species maintained in the same housed conditions

Carcangiu, Vincenzo and Luridiana, Sebastiano and Mura, Maria Consuelo and Parmeggiani, Albamaria and Giannetto, Claudia and Congiu, Francesco and Piccione, Giuseppe (2014) Melatonin circadian rhythm in three livestock species maintained in the same housed conditions. Biological Rhythm Research, Vol. 45 (6), p. 909-914. ISSN 0929-1016. eISSN 1744-4179. Article.

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DOI: 10.1080/09291016.2014.929855


The aim of this study was to evaluate the circadian rhythm of melatonin in horses, sheep, and goats, and to compare this rhythmicity under the same conditions. Five female thoroughbred, five female Sarda sheep, and five female Sarda goats were housed in boxes equipped with an opening window. Animals were kept under a natural photoperiod and indoor ambient temperature (16–20 °C). Blood samples were collected every 2 h over 48 h period. Results showed a circadian melatonin rhythm with a nocturnal acrophase in the three species studied. In sheep and goats, acrophase was observed at about 2 h before respect to horses. All species studied showed a high robustness between rhythm 61.20 ± 7.57 and 83.60 ± 7.26, denoting a high percentage of stationarity of melatonin circadian rhythm. However, we can claim that each species has its own characteristics in melatonin secretion that must be considered in the exploration of circadian clock in different species.

Item Type:Article
ID Code:10045
Uncontrolled Keywords:Horses, sheep, goats, melatonin, circadian rhythm
Subjects:Area 07 - Scienze agrarie e veterinarie > VET/02 Fisiologia veterinaria
Area 07 - Scienze agrarie e veterinarie > AGR/18 Nutrizione e alimentazione animale
Area 07 - Scienze agrarie e veterinarie > AGR/17 Zootecnica generale e miglioramento genetico
Divisions:001 Università di Sassari > 01-a Nuovi Dipartimenti dal 2012 > Medicina Veterinaria
Publisher:Taylor & Francis
Deposited On:29 Aug 2014 09:55

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