Partitioning Dynamics of Nutrients in Transition Dairy Cows: Metabolic, Hormonal, and Cellular Mechanisms Affecting Lactation and Fertility

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This is an unedited manuscript accepted for publication and provided as an Article in Press for early access at the author’s request. The article will undergo copyediting, typesetting, and galley proof review before final publication. Please be aware that errors may be identified during production that could affect the content. All legal disclaimers of the journal apply.

Year : 2026 | Volume : 3 | 01 | Page :
    By

    Md. Emran Hossain,

  1. Professor, Department of Animal Science and Nutrition, Faculty of Veterinary Medicine, Chattogram Veterinary and Animal Sciences University, Chattogram, Bangladesh

Abstract

This review critically examines nutrient partitioning dynamics in dairy cows during the transition phase, a period that profoundly affects lactation and reproductive performance. During this phase, cows experience extensive physiological changes that alter nutrient requirements and utilization, making effective management essential for health and productivity. The review synthesizes current research on mechanisms of nutrient partitioning, with particular attention to energy, protein, and mineral balance, which are crucial for optimizing milk yield, milk composition, and reproductive success. Proper nutrient management helps prevent negative energy balance, a common issue that can reduce milk production and impair reproductive efficiency. Metabolic disorders, including ketosis and milk fever, are discussed to highlight the importance of adequate nutrient provision in mitigating health risks. Environmental and management factors, such as housing, feeding strategies, and stress, are also examined, demonstrating the need for integrated approaches that address both nutrition and welfare. The review identifies gaps in existing knowledge, emphasizing opportunities for developing more precise feeding strategies and alternative feed resources to improve nutrient availability and utilization. Future research directions include the application of precision nutrition and the evaluation of novel feed ingredients to enhance transition-phase outcomes. By improving understanding of nutrient partitioning, dairy producers can implement strategies that support sustainable production, promote animal welfare, and increase economic efficiency. This comprehensive overview provides a foundation for advancing both scientific research and practical approaches in dairy cow nutrition and management, offering insights that are vital for optimizing performance during the critical transition period.

Keywords: Cellular signaling, endocrine regulation, fertility disorders, lactation performance, metabolic adaptation, nutrient partitioning, transition dairy cows.

How to cite this article:
Md. Emran Hossain. Partitioning Dynamics of Nutrients in Transition Dairy Cows: Metabolic, Hormonal, and Cellular Mechanisms Affecting Lactation and Fertility. International Journal of Nutritions. 2026; 03(01):-.
How to cite this URL:
Md. Emran Hossain. Partitioning Dynamics of Nutrients in Transition Dairy Cows: Metabolic, Hormonal, and Cellular Mechanisms Affecting Lactation and Fertility. International Journal of Nutritions. 2026; 03(01):-. Available from: https://journals.stmjournals.com/ijn/article=2026/view=240270


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Ahead of Print Subscription Review Article
Volume 03
01
Received 16/02/2026
Accepted 07/03/2026
Published 18/03/2026
Publication Time 30 Days
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