Circadian rhythms entrainment (CR) to the 24 hour day and night cycle has been described under different conditions.The objective of this study was to measure different blood metabolites in female Awassi sheep in regard to daily and seasonal fluctuations under normal pastoral conditions.A total of 6 blood samples were collected from each female sheep in the period from 20/12/2019 to 20/6/2020,the blood samples were analyzed for calcium,cholesterol,triglycerides,and chloride and magnesium contents.A significant difference was noticed in the measured parameters between the samples in one day and after six months in the same animal.
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