Innovative Approaches and Current Challenges in Poultry Energy Utilization

A special issue of Animals (ISSN 2076-2615). This special issue belongs to the section "Poultry".

Deadline for manuscript submissions: 30 April 2025 | Viewed by 1995

Special Issue Editors


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Guest Editor
Animal Production Department, Faculty of Agriculture, Benha University, Benha, Egypt
Interests: poultry nutrition; dietary energy; feed evaluation; diet formulation

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Guest Editor
Monogastric Research Centre, School of Agriculture and Environment, Massey University, Palmerston North 4442, New Zealand
Interests: poultry nutrition; calcium digestibility; digestible calcium requirement; acid binding capacity

Special Issue Information

Dear Colleagues,

In commercial poultry production, feed represents about 70% of the total production cost, with energy contributing to two-thirds of the feed cost. Dietary energy is the first item to consider while formulating poultry feeds, as it is required for maintenance, physiological functions, metabolism and growth. The economic importance and effects of energy on poultry performance have led to the development of different systems to express the energy value of feed and the energy requirements of birds. Energy systems used in poultry nutrition are still a matter of discussion amongst poultry nutritionists. The apparent metabolizable energy has been the most commonly used tool in poultry nutrition to describe the energy requirements and dietary energy content of feed ingredients for poultry. However, this system is far from being perfect, considering the fact that it holds various limitations and shortcomings, with several aspects of practical relevance remaining unexplored. In recent years, novel approaches have attracted poultry scientists’ attention towards refining energy evaluation methods for poultry. This Special Issue aims to raise our current awareness of the challenges associated with poultry dietary energy utilization, in addition to fostering comprehensive insights about factors influencing energy utilisation, innovative solutions, and practical strategies to improve energy utilisation efficiency for an efficient poultry production.

Dr. Mahmoud Mohamed Khalil
Dr. Laura S. David
Guest Editors

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Keywords

  • poultry
  • dietary energy
  • feed processing
  • energy evaluation
  • energy metabolism
  • metabolic pathway
  • energy sources

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Published Papers (1 paper)

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Research

9 pages, 458 KiB  
Communication
Age-Related Variations in the Apparent Metabolizable Energy of Meat and Bone Meal for Broilers
by Mahmoud M. Khalil, M. Reza Abdollahi, Faegheh Zaefarian and Velmurugu Ravindran
Animals 2024, 14(4), 530; https://doi.org/10.3390/ani14040530 - 6 Feb 2024
Viewed by 1199
Abstract
The influence of broiler age on the apparent metabolizable energy (AME) and nitrogen-corrected AME (AMEn) of meat and bone meal (MBM) was investigated. A corn–soy basal diet and an experimental diet wherein 300 g/kg of the basal diet was replaced (w/ [...] Read more.
The influence of broiler age on the apparent metabolizable energy (AME) and nitrogen-corrected AME (AMEn) of meat and bone meal (MBM) was investigated. A corn–soy basal diet and an experimental diet wherein 300 g/kg of the basal diet was replaced (w/w) with MBM were developed. The diets, in pellet form, were fed to six replicate cages across six age groups, namely d 1 to 7, 8 to 14, 15 to 21, 22 to 28, 29 to 35 or 36 to 42 d post-hatch. Birds were fed either a starter diet from d 1–21 or a finisher diet from d 22–35. Basal and experimental diets were introduced on d 1, 8, 15, 22, 29 and 36 with 10 (d 1–7), 8 (d 8–14) and 6 (d 15–42) birds per replicate. Total collection of excreta was carried out during the last 4 d of each age period. A linear decrease (p < 0.001) in the retention of dry matter and nitrogen was observed with advancing age. The AMEn of MBM showed a linear increase (p < 0.05), rising from 12.56 MJ/kg during d 1–7 to 13.90 MJ/kg during d 29–35, followed by a decline to 13.41 MJ/kg during d 36–42. The current findings showed that the energy utilization of MBM increased with the advancing age of broilers. Age-dependent AMEn values of MBM may need to be considered when MBM is included in feed formulations. Full article
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