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ISSN: 2329-888X
Advances in Dairy Research
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Timely Provision of Different Feeds in Dairy Enterprises: A Circadian Science

Akbar Nikkhah*

Chief Highly Distinguished Professor, Department of Animal Sciences, Faculty of Agricultural Sciences, University of Zanjan, Zanjan, Iran

*Corresponding Author:
Akbar Nikkhah
Chief Highly Distinguished Professor
Department of Animal Sciences, Faculty of Agricultural Sciences
University of Zanjan, Zanjan 313-45195, Iran
Tel: +98-241-5152801
Fax: +98-241-5283202
E-mail: [email protected]

Received date: January 24, 2015; Accepted date: January 26, 2015; Published date: January 28, 2015

Citation: Nikkhah A (2015) Timely Provision of Different Feeds in Dairy Enterprises: A Circadian Science. J Adv Dairy Res 3:e116. doi: 10.4172/2329-888X.1000e116

Copyright: © 2015 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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Editorial

The objective of this article was to signify the importance of providing different feed ingredients of especially forage and concentrate to dairy ruminants at right times of the 24-h period. While specifically unexplored for differing feed ingredients, timing of eating has already been discovered as a key regulator of circadian rhythms of nutrient intake, rumen fermentation and intermediary metabolism [1-4]. This article develops a foundation based upon which different feed items particularly and generally forage and concentrate possess optimum provision times.

Recent research revealed that dairy cows fed total mixed rations once daily at night vs. morning exhibit more pronounced increases in feed intake and rumen volatile fatty acids and ammonia concentrations shortly post-feeding [5,6]. As a result, peripheral levels of key metabolites increase more significantly in night-fed vs. morning-fed dairy cows [6]. However, such an increased peak in acid production and a lower nadir in rumen pH did not compromise rumen function and dairy production. Notably, milk energy production and in some cases feed intake were increased by nocturnal vs. diurnal feeding [6]. These findings suggest that rumen and the whole ruminant can effectively tolerate increased fluctuations in metabolism nocturnally. This suggestion founds a theory that those ingredients that are considered more risky to rumen and ruminant health should have optimal times of provision during the 24-h period.

Based on recent findings [7,8], rumen experiences a greater volume and fermentation rate and extent overnight vs. during day. This suggests that rumen physiology and metabolism do function under specialized circadian rhythms. Synchronizing such rhythms with the external environment including feeding timing and photoperiod should enable optimizing nutrient use efficiency and dairy farm economics. Future research on the above synchronies is a must before global guidelines on optimal circadian times of the provision of specific feed ingredients may be formulated.

Acknowledgements

The Iran’s Ministry of Science Research and Technology, National Elite Foundation, and University of Zanjan are gratefully acknowledged for supporting the author’s global programs of optimizing science edification in the new millennium.

References

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