Application and Mechanism of Marine Bioactive Substances in Animal Nutrition

A special issue of Biology (ISSN 2079-7737). This special issue belongs to the section "Marine Biology".

Deadline for manuscript submissions: 1 November 2024 | Viewed by 2591

Special Issue Editor


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Guest Editor
College of Coastal Agricultural Sciences, Guangdong Ocean University, Zhanjiang, China
Interests: animal nutrition; heat stress; feed toxins; gut health; seaweeds; oxidative stress; immune response

Special Issue Information

Dear Colleagues,

Marine biological resources are abundant, and provide a wide variety of bioactive substances from marine organisms. Marine bioactive substances such as chitosan, marine antimicrobial peptides, seaweed products, etc. have shown great research value and application prospects in biomedicines and functional foods,  mainly due to their multiple biological functions, including antioxidant, anti-inflammatory, antibacterial, antitumor, and antiviral. However, the application and mechanism of marine bioactive substances in animals have not been systematically studied. As many countries have banned growth-promoting antibiotics in feed, the animal industry faces many challenges. In the post-antibiotic era, coupled with global warming and high-density rearing, modern animal production is suffering from various stresses (e.g., heat stress, transport stress, weanling stress, mycotoxins contamination of feed), which cause organ dysfunction and physiological disorders. In this context, there is great potential in the use of marine bioactive substances in animal nutrition, which will not only promote the health status and sustainable production of animals, but will also expand the application scope of marine biological resources. Therefore, Biology is launching a Special Issue entitled “Application and Mechanism of Marine Bioactive Substances in Animal Nutrition”.

We are pleased to invite you to submit your latest research findings or a review article to this Special Issue. We believe that this Special Issue, “Application and Mechanism of Marine Bioactive Substances in Animal Nutrition”, will help to highlight the most recent advances in all aspects of marine bioactive substances in improving modern animal production, thereby promoting the development and utilization of marine biological resources.

This Special Issue aims to exchange and highlight the recent advances in the use of diverse marine biological resources (e.g., marine polysaccharides, marine polyphenols, marine antioxidants, marine immunomodulators, antimicrobial peptides from marine sources, marine-sourced polyunsaturated fatty acids, and seaweed products) and their interplay with health and production in animals (pigs, poultry, herbivores, aquatic animals, model animals etc.). Furthermore, this collection looks to stimulate discussion regarding the recent technological advances (e.g., encapsulation, nanobiotechnology) that improve the bioactivity of marine bioactive substances in animal nutrition, as well as the molecular mechanisms underlying marine bioactive substances that benefit animals.

In this Special Issue, original research articles and reviews are welcome. Research areas may include (but are not limited to) the following:

  • Using marine bioactive substances to improve the gut barrier function of animals;
  • Application of marine bioactive substances to improve animal immune response;
  • Dietary marine bioactive substances acting as novel antioxidants to relieve oxidative stress in animals;
  • Marine bioactive substances as decontamination agents of animal feed mycotoxins in vitro and/or in vivo;
  • Incorporation of marine bioactive substances with nanotechnology-based approaches for applications in animal nutrition.

We look forward to receiving your contributions.

Dr. Wen-Chao Liu
Guest Editor

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Keywords

  • marine polysaccharides
  • marine polyphenols
  • marine antioxidants
  • marine immunomodulators
  • seaweeds
  • animals

Published Papers (2 papers)

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Research

11 pages, 1551 KiB  
Communication
Combination of Host-Associated Rummeliibacillus sp. and Microbacterium sp. Positively Modulated the Growth, Feed Utilization, and Intestinal Microbial Population of Olive Flounder (Paralichthys olivaceus)
by Su-Jeong Lee, So Hee Kim, Da-In Noh, Young-Sun Lee, Tae-Rim Kim, Md Tawheed Hasan, Eun-Woo Lee and Won Je Jang
Biology 2023, 12(11), 1443; https://doi.org/10.3390/biology12111443 - 17 Nov 2023
Cited by 1 | Viewed by 982
Abstract
Two novel strains of Rummeliibacillus sp. and Microbacterium sp. were identified from the intestine of olive flounder (Paralichthys olivaceus) and characterized in vitro as potential probiotics. Feeds without probiotic and with a 50:50 mixture of these two strains (1 × 10 [...] Read more.
Two novel strains of Rummeliibacillus sp. and Microbacterium sp. were identified from the intestine of olive flounder (Paralichthys olivaceus) and characterized in vitro as potential probiotics. Feeds without probiotic and with a 50:50 mixture of these two strains (1 × 108 CFU/g feed) were denoted as the control and Pro diets, respectively. Three randomly selected tanks (20 flounders/tank, ~11.4 g each) were used for each diet replication. After 8 weeks of feeding, the growth and feed utilization of the flounder in the Pro group improved (p < 0.05) compared to the control. Among four immune parameters, only myeloperoxidase activity was elevated in the Pro group. Serum biochemistry, intestinal microbial richness (Chao1), and diversity (Shannon index) remained unchanged (p ≥ 0.05), but phylogenetic diversity was enriched in the Pro fish intestine. Significantly lower Firmicutes and higher Proteobacteria were found in the Pro diet; the genus abundance in the control and Pro was as follows: Staphylococcus > Lactobacillus > Corynebacterium and Lactobacillus > Staphylococcus > Corynebacterium, respectively. Microbial linear discriminant scores and a cladogram analysis showed significant modulation. Therefore, the combination of two host-associated probiotics improved the growth and intestinal microbial population of flounder and could be supplemented in the Korean flounder industry. Full article
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12 pages, 659 KiB  
Article
Dietary Canthaxanthin Supplementation Promotes the Laying Rate and Follicular Development of Huaixiang Hens
by Zhuangzhi Zhao, Jiang Wu, Yuan Liu, Yijie Zhuang, Haoguo Yan, Mei Xiao, Li Zhang and Lilong An
Biology 2023, 12(11), 1375; https://doi.org/10.3390/biology12111375 - 27 Oct 2023
Cited by 1 | Viewed by 1099
Abstract
Canthaxanthin(CX) is a ketocarotenoid, which is widely used in poultry production as a lipophilic antioxidant. Huaixiang chickens are a local breed in China famous for their excellent meat quality; improving their laying rate via nutritional regulation has attracted extensive attention. The aim of [...] Read more.
Canthaxanthin(CX) is a ketocarotenoid, which is widely used in poultry production as a lipophilic antioxidant. Huaixiang chickens are a local breed in China famous for their excellent meat quality; improving their laying rate via nutritional regulation has attracted extensive attention. The aim of this study was to evaluate the effects of dietary CX on the laying rate and follicular development in Huaixiang hens. A total of 180 Huaixiang hens were randomly divided into five groups with six replicates, and six chickens per replication. The control group (CON) were fed a basal diet, and the treatment group (NT) were fed a basal diet supplemented with 4, 6, 8 and 10 mg/kg CX. All chickens were 26 weeks old, living at an average environmental temperature of 25 ± 2 °C with a relative humidity of 65–75%. The results showed that supplementing the CX improved the laying rate and large white follicles (LWF) number (p < 0.05) and increased the concentration of reproductive hormones (LH, FSH, E2 and Prog) (p < 0.05), and the basal diet supplemented with 6 mg/kg CX worked best. Moreover, CX could increase the activities of antioxidant enzymes SOD and GSH-Px (p < 0.05) and reduce the content of the lipid peroxidation product MDA in Huaixiang chickens (p < 0.05); again, 6 mg/kg CX was best. In conclusion, dietary CX had positive effects on the laying rate, ovarian structure, reproductive hormone secretion, follicle development, and the antioxidant capacity of Huaixiang hens, and 6 mg/kg CX was recommended to be added to the diet of Huaixiang chickens. Full article
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