Antioxidants in Livestock Science: From Feed to Product

A special issue of Antioxidants (ISSN 2076-3921). This special issue belongs to the section "Extraction and Industrial Applications of Antioxidants".

Deadline for manuscript submissions: closed (31 December 2022) | Viewed by 7432

Special Issue Editor


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Guest Editor
College of Food Science, Sichuan Agricultural University, Ya’an, China
Interests: meat nutrition; food control; livestock
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Special Issue Information

Dear Colleagues,

Animal production provides valuable and abundant products for human consumption. In animal organisms, oxidative reactions are typically initiated by reactive oxygen species (ROS) or reactive nitrogen species (RNS) produced because of cellular metabolism, which is the basis of numerous biochemical pathways and cell functions. Animals maintain optimal tissue redox balance through pro-oxidant and endogenous antioxidant mechanisms. Oxidative damage to cellular components occurs when the body is stressed by internal and external conditions that cause an imbalance in the antioxidant system. Meanwhile, the pro-oxidative environment created in post-mortem muscles upon animal slaughter leads to the occurrence of oxidative reactions during aging, handling, processing, and storage of muscle foods. Oxidation processes have for decades been the focus of animal and meat scientists owing to the negative impact of these reactions on animal growth, performance, and food quality, and even cause enormous economic losses. Antioxidant strategies based on nutritional manipulation or the application of phytochemicals, mineral elements, vitamins, etc. with antioxidant potential in the feeds or directly in the meat product are considered to be the current safe means by which to deal with these undesirable reactions.

We invite you to submit your latest research findings or review articles to this Special Issue, which will bring together current research concerning oxidative damage and antioxidants in livestock science from feed to product, including but not limited to the key role and/or mechanisms of antioxidants in the neutralization of oxidative stress, and improvement of growth performance, immunization, and product quality.

Dr. Zhengfeng Fang
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. Antioxidants is an international peer-reviewed open access monthly 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 2900 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

  • oxidative stress
  • antioxidant capacity
  • nutritional manipulation
  • production performance
  • health promotion
  • animality foods

Published Papers (3 papers)

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Research

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21 pages, 4062 KiB  
Article
Impact of Omega-3 Fatty Acids Nano-Formulation on Growth, Antioxidant Potential, Fillet Quality, Immunity, Autophagy-Related Genes and Aeromonas hydrophila Resistance in Nile Tilapia (Oreochromis niloticus)
by Doaa Ibrahim, Ahmed H. Arisha, Safaa I. Khater, Wafaa M. Gad, Zeinab Hassan, Sally H. Abou-Khadra, Dalia Ibrahim Mohamed, Tamer Ahmed Ismail, Sara A. Gad, Salwa A. M. Eid, Reham A. Abd El-Wahab and Asmaa T. Y. Kishawy
Antioxidants 2022, 11(8), 1523; https://doi.org/10.3390/antiox11081523 - 04 Aug 2022
Cited by 11 | Viewed by 2382
Abstract
In modern aquaculture, enriching Nile tilapia’s diet with omega-3 poly-unsaturated fatty acids (PUFAs) not only plays an important role in its general health but also fortifies its fillet with omega-3-PUFAs. However, the major challenge affecting their delivery is their high instability due to [...] Read more.
In modern aquaculture, enriching Nile tilapia’s diet with omega-3 poly-unsaturated fatty acids (PUFAs) not only plays an important role in its general health but also fortifies its fillet with omega-3-PUFAs. However, the major challenge affecting their delivery is their high instability due to oxidative deterioration. Thus, the prospective incorporation of omega-3-PUFAs into nanocarriers can enhance their stability and bioactivity. In this regard, the effect of reformulated omega-3-NPs was investigated on Nile tilapia’s performance, flesh antioxidant stability, immunity, and disease resistance. Four fish groups supplemented with omega-3-PUFAs-loaded nanoparticles (omega-3 NPs) at levels of 0, 1, 2, and 3 g/kg diet and at the end of feeding trial fish challenged with Aeromonas hydrophila. Fish performance (weight gain and feed conversion) was improved in groups supplemented with omega-3-NPs (2 and 3 g/kg diet). The deposition of omega-3-PUFAs in fish flesh elevated with increasing dietary omega-3-NPs. Simultaneously the oxidative markers (H2O2, MDA, and reactive oxygen species) in fish flesh were reduced, especially with higher omega-3-NPs. Post-challenge, downregulation of IL-1β, IL-6, IL-8, TNF-α, and caspase-1 were noticed after dietary supplementation of omega-3-NPs. Moreover, mRNA expression of autophagy-related genes was upregulated while the mTOR gene was downregulated with higher omega-3 NPs levels. Lower expression of A. hydrophila ahyI and ahyR genes were detected with omega-3 NPs supplementation. In conclusion, omega-3-NPs application can fortify tilapia flesh with omega-3-PUFAs and augment its performance, immunity, and disease resistance against Aeromonas hydrophila. Full article
(This article belongs to the Special Issue Antioxidants in Livestock Science: From Feed to Product)
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15 pages, 1537 KiB  
Article
The Effect of Dietary Leucine Supplementation on Antioxidant Capacity and Meat Quality of Finishing Pigs under Heat Stress
by Yunju Yin, Yating Liu, Geyan Duan, Mengmeng Han, Saiming Gong, Zhikang Yang, Yehui Duan, Qiuping Guo, Qinghua Chen and Fengna Li
Antioxidants 2022, 11(7), 1373; https://doi.org/10.3390/antiox11071373 - 15 Jul 2022
Cited by 11 | Viewed by 2208
Abstract
This study examined the effects of dietary leucine supplements on antioxidant capacity and meat quality in growing-finishing pigs. A total of 24 crossbred (Duroc × Landrace × Yorkshire) pigs with an average initial weight of 68.33 ± 0.97 kg were randomly allotted to [...] Read more.
This study examined the effects of dietary leucine supplements on antioxidant capacity and meat quality in growing-finishing pigs. A total of 24 crossbred (Duroc × Landrace × Yorkshire) pigs with an average initial weight of 68.33 ± 0.97 kg were randomly allotted to three treatment groups. All pigs were exposed to constant heat stress. Each group of pigs was fed a basal diet, or a diet supplemented with increasing levels of leucine (0.25% or 0.50%). The results showed that leucine intake could improve average daily gain and reduce feed/gain of finishing pigs under heat stress (p < 0.05). The supplementation of leucine could improve the carcass slant length (p = 0.09), and dramatically increased loin-eye area of the finishing pigs (p < 0.05) but had no significant effect on other carcass traits. Compared with the control group, 0.50% leucine markedly reduced drip loss and shear force of longissimus dorsi muscle, and increased pH value at 24 h after slaughter (p < 0.05). Dietary supplementation of 0.25% leucine increased the contents of inosine monophosphate and intramuscular fat in biceps femoris muscle (p < 0.05). Supplementation of 0.25% or 0.50% leucine significantly stimulated the activities of antioxidant enzymes while reduced the level of MDA in serum, liver and longissimus dorsi muscle (p < 0.05). Compared with the control group, 0.50% leucine supplementation markedly modulated the relative mRNA expression levels of genes related to muscle fiber type and mitochondrial function in longissimus dorsi muscle and the gene relative antioxidant in the liver (p < 0.05). In conclusion, dietary leucine supplementation could improve the growth performance and meat quality of the finishing pigs under heat stress, and the pathway of Keap1-NRF2 and PGC-1α-TFAM might be involved. Full article
(This article belongs to the Special Issue Antioxidants in Livestock Science: From Feed to Product)
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Review

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12 pages, 566 KiB  
Review
Placental Malfunction, Fetal Survival and Development Caused by Sow Metabolic Disorder: The Impact of Maternal Oxidative Stress
by Xizi Yang, Ruizhi Hu, Mingkun Shi, Long Wang, Jiahao Yan, Jiatai Gong, Qianjin Zhang, Jianhua He and Shusong Wu
Antioxidants 2023, 12(2), 360; https://doi.org/10.3390/antiox12020360 - 02 Feb 2023
Cited by 6 | Viewed by 2058
Abstract
The energy and metabolic state of sows will alter considerably over different phases of gestation. Maternal metabolism increases dramatically, particularly in late pregnancy. This is accompanied by the development of an increase in oxidative stress, which has a considerable negative effect on the [...] Read more.
The energy and metabolic state of sows will alter considerably over different phases of gestation. Maternal metabolism increases dramatically, particularly in late pregnancy. This is accompanied by the development of an increase in oxidative stress, which has a considerable negative effect on the maternal and the placenta. As the only link between the maternal and the fetus, the placenta is critical for the maternal to deliver nutrients to the fetus and for the fetus’ survival and development. This review aimed to clarify the changes in energy and metabolism in sows during different pregnancy periods, as well as the impact of maternal oxidative stress on the placenta, which affects the fetus’ survival and development. Full article
(This article belongs to the Special Issue Antioxidants in Livestock Science: From Feed to Product)
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