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ISSN: 2157-7579
Journal of Veterinary Science & Technology
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Ruminant Intake Orchestration: An Inter-Science Chronophysiological Discipline

Akbar Nikkhah*

Department of Animal Sciences, Faculty of Agricultural Sciences, University of Zanjan, Iran

*Corresponding Author:
Akbar Nikkhah
Department of Animal Sciences
Faculty of Agricultural Sciences
University of Zanjan, Iran
Tel: +98-241-5152801
Fax: +98-241-5283202
E-mail: [email protected], [email protected]

Received date: July 25, 2014; Accepted date: July 26, 2014; Published date: July 29, 2014

Citation: Nikkhah A (2014) Ruminant Intake Orchestration: An Inter-Science Chronophysiological Discipline. J Veterinar Sci Technol 5:e112. doi:10.4172/2157-7579.1000e112

Copyright: © 2014 Nikkhah A. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

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Chronophysiology as an evolutionary multiscience has enabled ruminants to better cope with the changing environment from the Mother Nature towards modernity. With the recent discoveries on timing of feeding orchestrating circadian and postprandial nutrient intake and metabolic rhythms, time has already come to contemplate chronophysiology as a foundation of voluntary feed intake (VFI) regulation in ruminants as workable models for humans.

This editorial describes evolving chronophysiogenomical mediations of VFI in ruminants. Chronophysiology has been a key missing interscience in realistic modeling and understanding of VFI regulation in high-producing ruminants. The shortcoming gains increasing thoughts given that accurate and reliable nutrient intake predictions are essential to consistent meeting of nutrient requirements and, thus, to profitable human food production. With the recent chronophysiological discoveries on farm management strategies, time has already come to realize that evolutionary circadian rhythms in grazing, chewing, rumen kinetics and peripheral substrate assimilation can help develop innovative strategies to improve VFI prediction accuracy and ruminant efficiency and health [1].

Inspired by the nature, ruminants have evolved to ruminate habitually overnight and graze during day, particularly just about sunrise and sunset. Accordingly, rumen fermentation, postrumen assimilation and peripheral metabolism have developed specialized circadian rhythms [2,3]. These evolutionary rhythms in feeding behavior and metabolism have generated circannual, seasonal, and circadian rhythms in endocrinology. The drastic changes in production systems due to modernization have altered such natural eating, ruminating and rumen fermentation rhythms. Therefore, it has become vital to preserve synchronies between external cues and ruminant internal state [2,4].

Most recent findings suggest altered post feeding VFI rhythms of nongrazing cows by shifting feeding timing [1,5]. Eating rate and VFI, especially shortly post feeding, have increased by night instead of day feeding. As a result, rhythms of circadian and postprandial rumen fermentation and intermediary metabolism have changed [6,7]. Timing of feeding/eating as a key external manager, thus, determines the rate and extent of VFI, rumination, fermentation and splnachnoperipheral metabolism.

The impacts of chronophysiological management strategies (e.g., eating timing) should be quantified for inclusion in nutrient intake prediction and production estimation models to improve accuracy and practicality under varying physiological and management states. This will help optimize ruminant efficiency, food safety and security, and environmental quality interconnectedly. Such practical ruminant models greatly serve human health initiatives, particularly on overcoming challenges of obesity, diabetes, and cardiovascular diseases.

Acknowledgements

The Ministry of Science, Research and Technology and University of Zanjan are thankfully acknowledged for supporting the author’s global programs of optimizing the new millennium science edification.

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