'Chrono-functional milk': The difference between melatonin concentrations in night-milk versus day-milk under different night illumination conditions
| Autor: | Miri Cohen-Zinder, Harel Eitam, Rotem Agmon, Abraham Haim, Arieh Brosh, Abed E. Zubidat, A. Shabtay, Aviv Asher |
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| Rok vydání: | 2015 |
| Předmět: |
medicine.medical_specialty
Light Physiology Photoperiod Biology Pineal Gland Milking Melatonin Pineal gland Animal science Rhythm Physiology (medical) Internal medicine Heart rate medicine Animals Circadian rhythm Lighting photoperiodism Behavior Animal food and beverages Circadian Rhythm Milk Endocrinology medicine.anatomical_structure Cattle Female Somatic cell count medicine.drug |
| Zdroj: | Chronobiology International. 32:1409-1416 |
| ISSN: | 1525-6073 0742-0528 |
| DOI: | 10.3109/07420528.2015.1102149 |
| Popis: | Pineal melatonin (MLT) is produced at highest levels during the night, under dark conditions. We evaluated differences in MLT-concentration by comparing daytime versus night time milk samples, from two dairy farms with different night illumination conditions: (1) natural dark (Dark-Night); (2) short wavelength Artificial Light at Night (ALAN, Night-Illuminated). Samples were collected from 14 Israeli Holstein cows from each commercial dairy farm at 04:30 h ("Night-milk") 12:30 h ("Day-milk") and analyzed for MLT-concentration. In order to study the effects of night illumination conditions on cows circadian rhythms, Heart Rate (HR) daily rhythms were recorded. MLT-concentrations of Night-milk samples from the dark-night group were significantly (p |
| Databáze: | OpenAIRE |
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