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Veterinary Sciences
Special Issues
Modern Genetics and Sustainable Breeding in Aquaculture and Fisheries
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Modern Genetics and Sustainable Breeding in Aquaculture and Fisheries

A special issue of Veterinary Sciences (ISSN 2306-7381).

Deadline for manuscript submissions: closed (31 December 2023) | Viewed by 6696

Special Issue Editor

Dr. Hualiang Liang

E-Mail Website
Guest Editor
Freshwater Fisheries Research Center, Chinese Academy of Fishery Sciences, Wuxi 214081, China
Interests: aquaculture; nutrient requirements; nutrient metabolism; stress regulation; immune regulation
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Global per capita fish consumption has hit a new record of 20.5kg per year and is expected to increase further in the next decade, underscoring the critical role of fish in global food and nutrition security. However, the development of aquaculture also faces the problem of sustainable development. The goal of this Special Issue, “Modern Genetics and Sustainable Breeding in Aquaculture and Fisheries” is to focus on increasing the health and nutrition metabolism status of aquaculture and maintaining the sustainability of aquaculture. Specifically, the Special Issue is interested in regulation mechanism of functional genes, research on sustainable new protein sources, new functional additives, nutrient metabolism and immune regulation, healthy breeding, etc. Research in these areas can provide new impetus for promoting the sustainable development of aquaculture. The sustainable development of aquaculture is also a concern for all countries. A large number of researchers have carried out a lot of nutrition, immunity, functional regulation and other research, and strive to promote the rapid development of aquaculture. Indeed, these studies have greatly promoted the rapid development of aquaculture.The Special Issue aim to clarify the role of gene function, novel protein sources and feed additives in promoting sustainable development of aquaculture and their potential applications in the future.

Dr. Hualiang Liang
Guest Editor

Manuscript Submission Information

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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. Veterinary Sciences 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 2100 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

  • aquatic animal
  • regulatory mechanism
  • gene function
  • nutrient metabolism
  • immunity
  • sustainable new protein source
  • functional additive
  • precise nutrition
  • healthy breeding

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Published Papers (3 papers)

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Research

18 pages, 2937 KiB  
Article
Study of Dietary Emodin on Immune Defense in Megalobrama amblycephala against Aeromonas hydrophila
by Yuan-Yuan Zhang, Peng Xu, Xiao-Li Wang, Li-Ping Song, Jun Wu, Bing-Li Wang, Bin Hu, Shu-Quan Mao, Bo Liu and Xian-Ping Ge
Vet. Sci. 2023, 10(9), 588; https://doi.org/10.3390/vetsci10090588 - 21 Sep 2023
Cited by 1 | Viewed by 1733
Abstract
This experiment aimed to investigate the effects of emodin on the total bacterial count and immune response in various tissues of Wuchang bream infected with A. hydrophila. The experimental diets were made by supplementing emodin at 0, 30, 100, and 150 mg [...] Read more.
This experiment aimed to investigate the effects of emodin on the total bacterial count and immune response in various tissues of Wuchang bream infected with A. hydrophila. The experimental diets were made by supplementing emodin at 0, 30, 100, and 150 mg kg−1 to basal (control) diet, respectively, and fed to fish with an initial weight of 50.4 ± 2.35 g. All fish were divided into five experimental groups: uninfected fish fed with basal control diet (negative control, NC), infected fish fed with the diet supplemented with 0 (positive control group, PC), 30 (30), 100 (100), and 150 mg/kg (150) of emodin. The fish were reared for 14 days and sampled at different time points. The results showed that the total bacterial count in the kidney, blood, and liver tissues of Wuchang bream infected with A. hydrophila was significantly affected by the supplementation and feeding time of emodin. At the beginning of the experiment, the difference in total bacterial count among the groups was not significant. On day 1, the total bacterial count in all groups was significantly higher (p < 0.05) than that in the negative control group. On day 4, the total bacterial count in all the emodin groups was significantly reduced, and the best bactericidal effect was observed in the 100 mg kg−1 group. In addition, emodin had a significant effect on the immune response of Wuchang bream after infection with A. hydrophila (p < 0.05). Compared with the other groups, the respiratory burst activity, tumor necrosis factor-α (TNF-α), interleukin-1 (IL-1) content, and white blood cell count (WBC) in the 100 and 150 mg kg−1 groups could be restored to normal levels in the shortest time (p < 0.05). Furthermore, this study also measured the complement alternative pathway activity (ACH50), plasma superoxide dismutase (SOD) activity, and malondialdehyde (MDA) content of the fish. The results showed that supplying 100 mg kg−1 emodin to the diet could significantly (p < 0.05) increase the ACH50 activity of the fish. Compared with the positive control (PC) group, the addition of emodin to the diet can inhibit the decrease in SOD activity and the increase in MDA content in the plasma of infected Wuchang bream. In conclusion, supplying 100 mg kg−1 emodin to the diet can enhance the ability of Wuchang bream to resist A. hydrophila infection by reducing the total bacterial count in tissues, increasing the activity of related immune enzymes, and promoting the secretion of cytokines. This provides a theoretical basis for production practice. Full article
(This article belongs to the Special Issue Modern Genetics and Sustainable Breeding in Aquaculture and Fisheries)
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12 pages, 308 KiB  
Article
The Role of Algae Extract (Ulva lactuca and Solieria chordalis) in Fishmeal Substitution in Gibel Carp (Carrassius auratus gibeilo)
by Hualiang Liang, Hopeson Chisomo Kasiya, Dongyu Huang, Mingchun Ren, Lin Zhang, Heng Yin and Haifeng Mi
Vet. Sci. 2023, 10(8), 501; https://doi.org/10.3390/vetsci10080501 - 3 Aug 2023
Cited by 1 | Viewed by 1809
Abstract
The function of algae extract (AE) in fishmeal (FM) substitution with plant proteins in the diets of Gibel carp (Carrassius auratus gibeilo) was investigated during a 56-day trial. Diets 1 and 2 contained 10% FM, Diets 3 and 4 contained 5% [...] Read more.
The function of algae extract (AE) in fishmeal (FM) substitution with plant proteins in the diets of Gibel carp (Carrassius auratus gibeilo) was investigated during a 56-day trial. Diets 1 and 2 contained 10% FM, Diets 3 and 4 contained 5% FM, and Diet 5 and 6 contained 0% FM. In contrast, Diets 2, 4, and 6 were supplemented with 0.2% AE. The results showed that FM reduction inhibited growth performance, while AE supplementation alleviated growth inhibition. FM reduction significantly decreased the crude protein levels of the whole body, while the contents of whole-body lipids were significantly decreased with AE supplementation. There were no significant changes in ALB, ALP, ALT, AST, TP, GLU, GLU, and TC in plasma. FM reduction with AE supplementation mitigated the decrease in antioxidant capacity by heightening the activity of antioxidant enzymes and related gene expressions, which mitigated the decrease in immune capacity by affecting the expression of inflammatory factors. In summary, AE supplementation could alleviate the negative effects of FM reduction in Gibel carp. Full article
(This article belongs to the Special Issue Modern Genetics and Sustainable Breeding in Aquaculture and Fisheries)
16 pages, 3375 KiB  
Article
Transcriptomic Analysis of Large Yellow Croaker (Larimichthys crocea) during Early Development under Hypoxia and Acidification Stress
by Yabing Wang, Run Chen, Qian Wang, Yanfeng Yue, Quanxin Gao, Cuihua Wang, Hanfeng Zheng and Shiming Peng
Vet. Sci. 2022, 9(11), 632; https://doi.org/10.3390/vetsci9110632 - 12 Nov 2022
Cited by 7 | Viewed by 2227
Abstract
Fishes live in aquatic environments and several aquatic environmental factors have undergone recent alterations. The molecular mechanisms underlying fish responses to hypoxia and acidification stress have become a serious concern in recent years. This study revealed that hypoxia and acidification stress suppressed the [...] Read more.
Fishes live in aquatic environments and several aquatic environmental factors have undergone recent alterations. The molecular mechanisms underlying fish responses to hypoxia and acidification stress have become a serious concern in recent years. This study revealed that hypoxia and acidification stress suppressed the growth of body length and height of the large yellow croaker (Larimichthys crocea). Subsequent transcriptome analyses of L. crocea juveniles under hypoxia, acidification, and hypoxia–acidification stress led to the identification of 5897 differentially expressed genes (DEGs) in the five groups. Gene Ontology and Kyoto Encyclopedia of Genes and Genomes enrichment analyses revealed that several DEGs were enriched in the ‘protein digestion and absorption’ pathway. Enrichment analysis revealed that this pathway was closely related to hypoxia and acidification stress in the five groups, and we found that genes of the collagen family may play a key role in this pathway. The zf-C2H2 transcription factor may play an important role in the hypoxia and acidification stress response, and novel genes were additionally identified. The results provide new clues for further research on the molecular mechanisms underlying hypoxia–acidification tolerance in L. crocea and provides a basic understanding of the potential combined effects of reduced pH and dissolved oxygen on Sciaenidae fishes. Full article
(This article belongs to the Special Issue Modern Genetics and Sustainable Breeding in Aquaculture and Fisheries)
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