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Animals
Special Issues
Sanitation and Waste Control in Poultry Farming
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Sanitation and Waste Control in Poultry Farming

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

Deadline for manuscript submissions: 15 August 2025 | Viewed by 687

Special Issue Editor

Prof. Dr. Yan Wang

E-Mail Website
Guest Editor
Guangdong Laboratory for Lingnan Modern Agriculture, College of Animal Science, South China Agricultural University, Guangzhou 510642, China
Interests: sanitation technologies and strategies in poultry farming; waste management and odor control in livestock systems; environmental impacts of poultry farming and mitigation approaches

Special Issue Information

Dear Colleagues,

Poultry farming plays a crucial role in global food production, but it also presents significant challenges in terms of waste management and environmental control. The efficient management of poultry waste, including manure, bedding, and wastewater, is essential not only for maintaining farm productivity but also for minimizing environmental impacts. Effective waste control strategies can improve poultry health, enhance productivity, and reduce the negative consequences of pollution on surrounding ecosystems.

This Special Issue aims to explore the latest advances in sanitation and waste control within poultry farming, with a particular focus on sustainable, innovative approaches. We invite contributions from a wide range of disciplines that address the diverse aspects of waste management, including the following:

  • Waste treatment technologies;
  • Environmental monitoring and pollution control in poultry farms;
  • Regulatory frameworks and policies surrounding waste management in poultry farming;
  • Impact of waste management on poultry health and farm productivity;
  • Innovative practices and technologies for reducing waste generation at the source.

We welcome interdisciplinary research that bridges the gap between environmental sustainability and farm efficiency. By collating cutting-edge research and practical solutions, this Special Issue aims to provide valuable insights to poultry farmers, researchers, policymakers, and industry professionals working towards more sustainable and efficient poultry farming practices.

Prof. Dr. Yan Wang
Guest Editor

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.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2400 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • poultry
  • order
  • waste management
  • environmental sustainability
  • sanitation technologies

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Further information on MDPI's Special Issue policies can be found here.

Published Papers (1 paper)

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Research

16 pages, 1203 KiB  
Article
Influence of Astragalus extract on Gut Microbiome Regulation and Ammonia Emission Mitigation in Laying Hens
by Shasha Xiao, Kunxian Feng, Shikai Li, Miao Li, Xiliang Yan, Yinbao Wu, Jiandui Mi, Xindi Liao and Yan Wang
Animals 2025, 15(5), 620; https://doi.org/10.3390/ani15050620 - 20 Feb 2025
Viewed by 539
Abstract
Astragalus extract plays a dual role in gut microbiome regulation and ammonia (NH3) emission mitigation in laying hens. This study explored its effects through feeding experiments, with a focus on gut microbial metabolic pathways and NH3 reduction mechanisms. To achieve [...] Read more.
Astragalus extract plays a dual role in gut microbiome regulation and ammonia (NH3) emission mitigation in laying hens. This study explored its effects through feeding experiments, with a focus on gut microbial metabolic pathways and NH3 reduction mechanisms. To achieve this, both in vitro fermentation experiments and in vivo feeding trials were conducted. In the in vitro study, cecal contents from laying hens were incubated with different concentrations of AE and Yucca extract (YE) to evaluate NH3 production, while in the feeding trial, 58-week-old Lohmann Pink laying hens were allocated into three groups (control, 0.1% YE, and 0.1% AE) and housed in controlled-environment respiration chambers for 21 days. Measurements included NH3 emissions, serum biochemical indices, immune parameters, gut physicochemical properties, and 16S rRNA-based microbiota analysis. Results showed that Astragalus extract reduced NH3 emissions by 29.3%, achieved by lowering urease and uricase activities and promoting the conversion of ammonium nitrogen to nitrate nitrogen. Additionally, it significantly enhanced gut immune function by increasing intestinal immunoglobulin levels. Microbial community analysis revealed an increased relative abundance of Bacteroides, Muribaculaceae, and Faecalibacterium, which are negatively correlated with NH3 emissions. These microbial shifts improved ammonium nitrogen utilization via the upregulation of CTP synthase and GMP synthase activities, contributing to higher NH3 reduction efficiency. This study highlights Astragalus extract as a cost-effective and sustainable strategy to regulate gut microbiota, optimize nitrogen metabolism, and mitigate NH3 emissions in laying hens. Full article
(This article belongs to the Special Issue Sanitation and Waste Control in Poultry Farming)
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