کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
4931128 | 1432747 | 2017 | 12 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
The importance of hormonal circadian rhythms in daily feeding patterns: An illustration with simulated pigs
ترجمه فارسی عنوان
اهمیت ریتم روزانه هورمونی در الگوهای تغذیه روزانه: یک تصویر با خوک های شبیه سازی شده
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کلمات کلیدی
الگوی جایگزین، رفتار تغذیه، انگیزه، ریتم شبانه روزی، تعادل انرژی، خوک، ملاتونین، کورتیزول، تصمیم سازی، مدل سازی،
موضوعات مرتبط
علوم زیستی و بیوفناوری
بیوشیمی، ژنتیک و زیست شناسی مولکولی
علوم غدد
چکیده انگلیسی
The interaction between hormonal circadian rhythms and feeding behaviour is not well understood. This study aimed to deepen our understanding of mechanisms underlying circadian feeding behaviour in animals, using pigs, Sus scrofa, as a case study. Pigs show an alternans feeding pattern, that is, a small peak of feed intake at the beginning of the day and a larger peak at the end of the day. We simulated the feeding behaviour of pigs over a 24Â h period. The simulation model contained mechanisms that regulate feeding behaviour of animals, including: processing of feed in the gastrointestinal tract, fluctuation in energy balance, circadian rhythms of melatonin and cortisol and motivational decision-making. From the interactions between these various processes, feeding patterns (e.g. feed intake, meal frequency, feeding rate) emerge. These feeding patterns, as well as patterns for the underlying mechanisms (e.g. energy expenditure), fitted empirical data well, indicating that our model contains relevant mechanisms. The circadian rhythms of cortisol and melatonin explained the alternans pattern of feeding in pigs. Additionally, the timing and amplitude of cortisol peaks affected the diurnal and nocturnal peaks in feed intake. Furthermore, our results suggest that circadian rhythms of other hormones, such as leptin and ghrelin, are less important in circadian regulation of feeding behaviour than previously thought. These results are relevant to animal species with a metabolic and endocrine system similar to that of pigs, such as humans. Moreover, the modelling approach to understand feeding behaviour can be applied to other animal species.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Hormones and Behavior - Volume 93, July 2017, Pages 82-93
Journal: Hormones and Behavior - Volume 93, July 2017, Pages 82-93
نویسندگان
Iris J.M.M. Boumans, Imke J.M. de Boer, Gert Jan Hofstede, Susanne E. la Fleur, Eddie A.M. Bokkers,