Current Challenges for Poultry Energy Utilization
A special issue of Animals (ISSN 2076-2615). This special issue belongs to the section "Poultry".
Deadline for manuscript submissions: 30 June 2024 | Viewed by 1328
Special Issue Editors
Interests: poultry nutrition; dietary energy; feed evaluation; diet formulation
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
Manuscript Submission Information
Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.
Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Animals is an international peer-reviewed open access semimonthly journal published by MDPI.
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Keywords
- poultry
- dietary energy
- feed processing
- energy evaluation
- energy metabolism
- metabolic pathway
- energy sources
Planned Papers
The below list represents only planned manuscripts. Some of these manuscripts have not been received by the Editorial Office yet. Papers submitted to MDPI journals are subject to peer-review.
Title: Metabolizable Energy and Digestible Lysine in Diets of Heat Stressed Japanese Quails
Authors: Ana Paula Silva Ton
Affiliation: Universidade Federal de Mato Grosso, Cuiaba, Brazil
Abstract: Abstract: The objective of this study was to estimate the effects of metabolizable energy (ME) and digestible lysine (DLys) on the performance, economic viability and egg quality of Japanese quail (Coturnix coturnix japonica) heat stressed. Six hundred laying Japanese quails were distributed in a completely randomized design in a 3x4 factorial (ME levels: 2,600, 2,875 and 3,150 kcal ME/kg of diet and DLys levels: 0.90, 1.05, 1.20, 1.35%), totalizing 12 treatments, five replicates and ten birds per experimental unit. The birds were reared at room temperature (mean 27°C) and fed ad libitum. The experimental period lasted 112 days divided into 4 cycles of 28 days each. There was an increase (P<0.05) in the body weight, ME and net energy intake and specific gravity of the eggs of birds supplemented with diets containing 3,150 kcal/kg ME. The highest feed intake, DLys intake, caloric increment, feed conversion (g/g and kg/dz), feed efficiency (g/g and dz/kg), laying percentage, egg mass, commercial viable eggs, hydrogen content of albumen, egg weight, gross income, operating profit and profitability index were observed with the inclusion of 2,850 and 3,150 kcal/kg ME. A linear effect was observed for DLys levels, increasing DLys intake and lysine conversion per gram of egg. It was concluded that the ME level required for better feed conversion in Japanese quail under heat stress was 2,875 kcal/kg ME with a level of 0.90% DLys in the diet.
Keywords: ambience, Coturnix coturnix japonica, egg quality, requirements.
