Feed Evaluation and Management for Ruminant Nutrition

A special issue of Agriculture (ISSN 2077-0472). This special issue belongs to the section "Farm Animal Production".

Deadline for manuscript submissions: 10 March 2026 | Viewed by 763

Special Issue Editor


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Guest Editor
Department of Animal Sciences, R.H. Smith Faculty of Agriculture, Food and Environment, The Hebrew University of Jerusalem, P.O. Box 12, Rehovot 7610001, Israel
Interests: ruminant nutrition; ruminant health; feed intake and behavior; ruminant feed evaluations
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Special Issue Information

Dear Colleagues,

To address the increasing global demand for food, intensive farming systems have been developed, which require precision in every aspect of farm management. The quality of feed, whether as individual components or as a total mixed ration (TMR), has become a fundamental element of precision and intensive farming practices for ruminants. In the past, assessing feed and monitoring its consumption required labor-intensive laboratory techniques, but technological advancements have transformed this process.

This Special Issue is dedicated to examining the latest methodologies and technologies used in the evaluation and management of feed for ruminant nutrition. It aims to tackle the pressing need for precise, swift, and consistent feed assessment techniques that can be utilized in both specialized facilities and farm environments. Innovative strategies for analyzing feed quality range from more traditional laboratory methods to contemporary solutions such as near-infrared spectroscopy (NIRS) systems.

Our focus is on cutting-edge technologies and methods that improve accuracy in the evaluation and consumption feed, such as the following:

  • Advanced NIRS applications for real-time feed analysis;
  • Innovative external and internal markers for measuring feed intake, digestibility, and utilization;
  • Precision feeding strategies that use state-of-the-art methods to manage and assess the quality and consumption of TMRs.

We welcome original research articles and reviews that explore the following:

  • New techniques for feed sampling and analysis and the development and validation of quick on-farm feed evaluation methods.
  • Comparative studies of traditional versus modern feed evaluation methods.

This Special Issue aims to offer a thorough overview of the latest progress in feed evaluation and management, aiding the advancement of precision ruminant nutrition.

Dr. Sameer J. Mabjeesh
Guest Editor

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Keywords

  • feedstuffs
  • feed evaluation
  • feed management
  • precision feeding
  • ruminant nutrition
  • feed quality
  • NIRS
  • precision farming

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Published Papers (1 paper)

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Research

19 pages, 1567 KB  
Article
Pelleted Total Mixed Rations as a Feeding Strategy for High-Yielding Dairy Ewes
by Sonia Andrés, Secundino López, Alexey Díaz Reyes, Alba Martín, Lara Morán, Raúl Bodas and F. Javier Giráldez
Agriculture 2026, 16(2), 225; https://doi.org/10.3390/agriculture16020225 - 15 Jan 2026
Viewed by 269
Abstract
The effects of pelleting a total mixed ration (TMR) for dairy sheep were investigated in an experiment involving 24 lactating Assaf ewes, which were assigned to two groups and fed the same TMR ad libitum, offered either in pelleted (PTMR group, n = [...] Read more.
The effects of pelleting a total mixed ration (TMR) for dairy sheep were investigated in an experiment involving 24 lactating Assaf ewes, which were assigned to two groups and fed the same TMR ad libitum, offered either in pelleted (PTMR group, n = 12) or in unpelleted form (CTMR group, n = 12). The experiment lasted 28 days, during which feed intake, eating behavior (including meal frequency and size, meal duration, eating rate, between-meal interval), and milk yield were recorded daily. Body weight (BW) was recorded on days 1 and 28 and milk samples were collected on days 1, 8, 15, 22 and 28 for milk composition analysis. Blood acid-base status was determined at the beginning and at the end of the trial. Ewes fed the CTMR diet exhibited (p < 0.05) a higher meal frequency and longer meal duration, along with a smaller meal size and slower eating rate. However, feed intake in this group was less than that in ewes fed PTMR only during the final two weeks of the experimental period. Total eating time was also longer (p < 0.001) in the CTMR group, whereas the average time between meals was shorter (p < 0.002). No differences (p > 0.05) were observed between dietary treatments in blood acid-base status, milk yield or milk composition. However, a diet x day interaction (p < 0.05) was detected for milk yield, as during the last 2 weeks of the experimental period the ewes fed the PTMR yielded more milk than those fed the CTMR. Feed conversion ratio did not differ between groups (p > 0.05), but body weight loss was greater in ewes fed the CTMR diet (−3.00 vs. −0.58 kg; p < 0.05). A trend toward improved feed efficiency was observed in the PTMR group when calculated based on milk yield corrected for that theoretically derived from the mobilization of body reserves (1.98 vs. 1.41 g DMI/kg milk; p = 0.077), with estimated contributions from body reserves of 485 g/day in the CTMR group and 70 g/day in the PTMR group. In conclusion, the use of pelleted total mixed rations in high-yielding dairy ewes enhances feed intake, feed efficiency, milk yield, and energy balance without adversely affecting milk composition or animal health in the short term. Full article
(This article belongs to the Special Issue Feed Evaluation and Management for Ruminant Nutrition)
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