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Animals
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Monogastric Livestock Nutrition: Improving Muscle Fatty Acids
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Monogastric Livestock Nutrition: Improving Muscle Fatty Acids

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

Deadline for manuscript submissions: closed (31 August 2022) | Viewed by 3425

Special Issue Editor

Prof. Dr. Beatriz Isabel

E-Mail Website
Guest Editor
Departamento de Producción Animal, Universidad Complutense de Madrid, Madrid, Spain
Interests: nutrition; monogastric; lipids; fatty acids; digestion; metabolism; feed intake; agriculture; ecosystem sustainability

Special Issue Information

Dear Colleagues,

The meat of monogastric animals contains a large number of essential nutrients, such as essential fatty acids (EFAS), iron, group B vitamins, and vitamins D and E. Today, the feeding of our animals requires great optimization to guarantee not only animal welfare but also the best composition of these nutrients to prevent degenerative diseases related to nutritional imbalances. Many studies have been carried out with the aim of increasing the content of oleic acid and omega 3 fatty acids in pork and chicken, since they are the main representatives of monogastric animals with meat aptitude. However, there are still many ways of action to be explored to improve monogastric animals’ products and production. That is the case of the combination of omega 3 with antioxidants, inclusion of various types of fatty acids or modeling growth and its relationship with the accumulation and quality of intramuscular fat, above all in sustainable production systems.

Prof. Dr. Beatriz Isabel
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

  • Monogastric animals
  • Fatty acids
  • Nutrients
  • Antioxidants
  • Meat

Published Papers (2 papers)

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Research

13 pages, 2070 KiB  
Article
Effects of Stocking Density on Fatty Acid Metabolism by Skeletal Muscle in Mice
by Qiuyan Chen, Xiaohui Li, Jiarun Cui, Caiyun Xu, Hongfei Wei, Qian Zhao, Hongli Yao, Hailong You, Dawei Zhang and Huimei Yu
Animals 2022, 12(19), 2538; https://doi.org/10.3390/ani12192538 - 22 Sep 2022
Viewed by 1198
Abstract
Specific pathogen-free (SPF) grade laboratory animals are kept in specific cages for life. The limited space could affect the characterization of colonization and dynamic changes related to gut microorganisms, and affect adipokines, even further affecting the fat synthesis and muscle quality of animals. [...] Read more.
Specific pathogen-free (SPF) grade laboratory animals are kept in specific cages for life. The limited space could affect the characterization of colonization and dynamic changes related to gut microorganisms, and affect adipokines, even further affecting the fat synthesis and muscle quality of animals. The objective of this study was to analyze the stocking density on the dynamic distribution of gut microbiota, fat synthesis and muscle quality of SPF grade Kunming mice. Three housing densities were accomplished by raising different mice per cage with the same floor size. Kunming mice were reared at low stocking density (LSD, three mice a group), medium stocking density (MSD, 5 mice a group), and high stocking density (HSD, 10 mice a group) for 12 weeks. The results demonstrated that the stocking density affected intestinal microbial flora composition. We found that compared with the MSD group, the abundance of Lactobacillus in the LSD group and the HSD group decreased, but the abundance of unclassified_Porphyromonadaceae increased. Moreover, fat synthesis and muscle quality were linked to the intestinal microbial flora and stocking density. Compared with the LSD group and the HSD group, the MSD group had a more balanced gut flora, higher fat synthesis and higher muscle quality. Overall, this study demonstrated that stocking density could affect gut microbiota composition, and reasonable stocking density could improve fat synthesis and muscle quality. Our study will provide theoretical support for the suitable stocking density of laboratory animals. Full article
(This article belongs to the Special Issue Monogastric Livestock Nutrition: Improving Muscle Fatty Acids)
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16 pages, 2257 KiB  
Article
Maternal Supplementation with Polyphenols and Omega-3 Fatty Acids during Pregnancy: Prenatal Effects on Fetal Fatty Acid Composition in the Iberian Pig
by Ana Heras-Molina, Rosa Escudero, José L. Pesántez-Pacheco, Consolación García-Contreras, Marta Vázquez-Gómez, Susana Astiz, Cristina Óvilo, Antonio González-Bulnes and Beatriz Isabel
Animals 2022, 12(16), 2140; https://doi.org/10.3390/ani12162140 - 21 Aug 2022
Cited by 2 | Viewed by 1490
Abstract
Intrauterine Growth Restriction (IUGR) is a major problem in pig production and different strategies, mainly maternal supplementation with different agents, are currently being studied. The combination of hydroxytyrosol and n3-PUFA seems to be a promising treatment to counteract IUGR, since the combination may [...] Read more.
Intrauterine Growth Restriction (IUGR) is a major problem in pig production and different strategies, mainly maternal supplementation with different agents, are currently being studied. The combination of hydroxytyrosol and n3-PUFA seems to be a promising treatment to counteract IUGR, since the combination may help improve n3-PUFA composition and lower the inflammatory status of IUGR piglets. The aim of the present study is to determine the effects of a maternal supplementation, from day 35 to day 100 of pregnancy, with linseed oil and hydroxytyrosol on the fetal FA composition. The results showed higher n3 levels, including eicosapentaenoic and docosahexaenoic FA in the offspring from treated gilts, which showed lower n6-PUFA/n3-PUFA (n6/n3) ratios. Saturated and monounsaturated fatty acids were also affected by treatment, especially in the muscle and brain. Thus, a maternal supplementation with linseed oil and hydroxytyrosol affected the fetal FA tissue composition, which could have implications in pig production due to the improvement of the piglets’ health status. Full article
(This article belongs to the Special Issue Monogastric Livestock Nutrition: Improving Muscle Fatty Acids)
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