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Animals
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Crude Protein in Pig Diets
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Crude Protein in Pig Diets

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

Deadline for manuscript submissions: closed (30 November 2024) | Viewed by 4523

Special Issue Editor

Dr. Antonia Lestingi

E-Mail Website
Guest Editor
Department of Veterinary Medicine, University of Bari Aldo Moro, 70010 Bari, Italy
Interests: agronomy; plant fertilization; animal and human nutrition; soil science

Special Issue Information

Dear Colleagues,

Pork provides an important contribution to the world food production, especially in Asia. Advanced breeding and feeding strategies are needed to supply the demand for animal protein in a growing world population. The impacts of agriculture and livestock on climate change, land use and degradation, water cycle, and biodiversity as well as on food security, animal welfare, and workforce safety are essential concerns to achieve global sustainability. Modern feed strategies include beneficial feed additives such as enzymes, amino acids, gut modulation products, manure management practices, and energy use efficiency to reduce emissions related to farming. Moreover, wildlife-hunting farms can use autochthonous genotypes, such as pure wild boar or crossbreeding with domestic pigs and can provide new life to many marginal areas representing an interesting addition to traditional zootechnics. Therefore, this Special Issue plans to provide an overview of the most recent advances on the nutritional and sustainable aspects of pig farming.

Potential topics include but are not limited to:

  • Genetic, metabolism, and nutritional interactions;
  • Protein supplemented amino acid requirements;
  • Use of insect and protein plants;
  • Nutrition and environmental sustainability;
  • Pure wild boar and crossbreeds.

Dr. Antonia Lestingi
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.

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

Published Papers (2 papers)

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Research

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26 pages, 329 KiB  
Article
Impact of Reduced Dietary Crude Protein and Propionic Acid Preservation on Intestinal Health and Growth Performance in Post-Weaned Pigs
by Kathryn Ruth Connolly, Torres Sweeney, Marion T. Ryan, Stafford Vigors and John V. O’Doherty
Animals 2025, 15(5), 702; https://doi.org/10.3390/ani15050702 - 27 Feb 2025
Viewed by 500
Abstract
This study investigated whether organic acid (OA)-preserved grain could mitigate the negative effects of low crude protein (CP) diets on growth performance, intestinal health, and the coefficient of total tract digestibility (CATTD) of nutrients in weaned piglets. The grain was either conventionally dried [...] Read more.
This study investigated whether organic acid (OA)-preserved grain could mitigate the negative effects of low crude protein (CP) diets on growth performance, intestinal health, and the coefficient of total tract digestibility (CATTD) of nutrients in weaned piglets. The grain was either conventionally dried or preserved post-harvest with 4 kg of OA per tonne. Ninety-six piglets (28 days old) were assigned to one of four diets in a 2 × 2 factorial design: (1) dried standard CP diet, (2) OA-preserved standard CP diet, (3) dried low CP diet, and (4) OA-preserved low CP diet. Standard and low CP diets contained 20% and 19% CP during the first 15 days, reduced to 19% and 17% CP from days 15–35 post-weaning. Faecal scores (FS) were assessed twice a day while microbial composition, inflammatory markers, colonic volatile fatty acid concentrations, and intestinal morphology were measured on the 8th day post-weaning. Performance metrics were measured over the 35-day experimental period. Low CP diets consistently reduced FS (p < 0.05) and increased colonic molar butyrate proportions (p < 0.01) but increased duodenal IL1B expression compared to standard CP diets (p < 0.05). The OA-preserved grain enhanced beneficial microbial populations (Lactobacillus, Roseburia) while lowering pro-inflammatory cytokines (IL1A, IL17) (p < 0.05). While dried grain with low CP diets reduced average daily gain (ADG), colonic short-chain fatty acids (SCFA) concentrations, and nitrogen digestibility, OA-preserved grain with low CP maintained these parameters and improved final body weight (p < 0.05). Overall, OA-preserved grain mitigated the performance decline associated with low CP diets by enhancing gut health and nutrient digestibility and reducing inflammation, thus presenting a promising alternative nutritional strategy for post-weaned piglets. Full article
(This article belongs to the Special Issue Crude Protein in Pig Diets)

Review

Jump to: Research

21 pages, 1287 KiB  
Review
Use of Wild Boar (Sus scrofa) as a Sustainable Alternative in Pork Production
by Antonia Lestingi
Animals 2023, 13(14), 2258; https://doi.org/10.3390/ani13142258 - 10 Jul 2023
Cited by 2 | Viewed by 3478
Abstract
Pork production involves several sustainability issues. The recent increase in the natural wild boar population and the possibilities of its breeding to produce meat and for sport hunting have revived attention on this wild species. The most important factors that could account for [...] Read more.
Pork production involves several sustainability issues. The recent increase in the natural wild boar population and the possibilities of its breeding to produce meat and for sport hunting have revived attention on this wild species. The most important factors that could account for its expansion and niche invasion are briefly summarized with the scientific opinion on management strategies. The information available to date on the quantitative, nutritional, and sensory characteristics of wild boar meat is reviewed to highlight its potential, if properly managed, as a sustainable option in meat production. This review reports on the opportunity of using wild boar meat in processed products and the need for research on processing qualities and acceptability for different final products. Above all, this review suggests that wild boar can be considered a sustainable alternative to meet the animal protein demand, as it can be established in marginal areas where it is already adapted to the environment, representing an interesting addition to traditional zootechnics. Full article
(This article belongs to the Special Issue Crude Protein in Pig Diets)
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