Innovation and development of the aquaculture nutrition research and feed industry in China

Bu, Xianyong; Li, Yueru; Lai, Wencong; Yao, Chuanwei; Liu, Yongtao; Wang, Zhen; Zhao, Zengqi; Han, Shangzhe; Du, Jianlong; Yao, Xin; Mai, Kangsen; Ai, Qinghui

doi:10.1111/raq.12865

Cited by 7 publications

(3 citation statements)

References 151 publications

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“…With the rapid intensive development of aquaculture industry, increasing lipid utilization for saving dietary protein and reducing the negative effects of abnormal lipid deposition have become the needs for the healthy development of the industry (Bu et al, 2023). Therefore, the study of lipid metabolism in aquatic animals, especially lipid catabolism, is a research hotspot of nutritional physiology at present.…”

Section: Discussionmentioning

confidence: 99%

Molecular cloning and characterization of three carnitine palmitoyltransferase (cpt) isoforms from mud crab (Scylla paramamosain) and their roles in respond to fasting and ambient salinity stress

Lin,

Huang,

Zhuo

et al. 2024

Front. Mar. Sci.

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As rate-limiting enzymes of β-oxidation of fatty acids in mitochondria, the carnitine palmitoyltransferase (CPT) played an important role in regulating energy homeostasis of aquatic animals. However, there was very little research on β-oxidation of fatty acids in crustaceans. In the present study, the full-length cDNA sequences of cpt-1a, cpt-1b and cpt-2 were isolated from the hepatopancreas of Scylla paramamosain, and contained 4206, 5303 and 3486 bp respectively. Sequence analysis showed that the CPT-1A, CPT-1B and CPT-2 encoded proteins with 777, 775 and 672 amino acids respectively, and only the CPT-1A possessed a transmembrane region. In addition, both the CPT-1B and CPT-2 contained conservative functional domains like N-terminal domain and acyltransferases choActase 2, while the CPT-1A lacked. The results of phylogenetic tree indicated that the CPT-1A, CPT-1B and CPT-2 of S. paramamosain gathered together with their corresponding orthologues from crustaceans. The tissue distribution exhibited that the cpt-1a was highly expressed in hepatopancreas, followed by muscle, eyestalk and cranial ganglia, and the muscle, eyestalk and heart were main expressed tissues of cpt-1b. Furthermore, the high expression levels of cpt-2 were mainly detected in hepatopancreas, muscle and heart. The transcriptional levels of cpt-1a, cpt-1b and cpt-2 were significantly up-regulated under chronic low salinity stress. Besides, at the acute low salinity stress condition, the expression levels of cpt-1a, cpt-1b and cpt-2 in hepatopancreas were dramatically increased in 14‰ and 4‰ salinity groups at the 6h and 48h, while the transcriptional levels of cpt-1a, cpt-1b and cpt-2 in muscle were signally up-regulated in 14‰ and 4‰ salinity groups at the 12h and 24h, showing an alternate response pattern. Similarly, the present study found that fasting could markedly increase the expression levels of cpt-1a, cpt-1b and cpt-2 in hepatopancreas and muscle, especially cpt-1a in hepatopancreas as well as cpt-1a and cpt-1b in muscle. The results above indicated that the cpt-1a, cpt-1b and cpt-2 played a crucial part in providing energy for coping with fasting and salinity stress. These results would contribute to enhancing the knowledge of cpt phylogenetic evolution and their roles in energy metabolism of crustaceans.

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Section: Discussionmentioning

confidence: 99%

Molecular cloning and characterization of three carnitine palmitoyltransferase (cpt) isoforms from mud crab (Scylla paramamosain) and their roles in respond to fasting and ambient salinity stress

Lin,

Huang,

Zhuo

et al. 2024

Front. Mar. Sci.

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“…In intensive and high-density aquaculture, the amount of residual bait and excreta exceeds the decomposition capacity of microorganisms, resulting in increased nitrogen in water, deterioration of water quality, and eutrophication [10]. Excessive nitrogen is one of the most significant pollutants in aquaculture water due to its toxicity to aquatic animals and its disruption of various physiological functions [11].…”

Section: Introductionmentioning

confidence: 99%

Gemmobacter denitrificans sp. nov., a denitrifying bacterium, isolated from pond water for Litopenaeus vannamei

Zhang,

Yang

et al. 2024

International Journal of Systematic and Evolutionary Microbiology

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A novel Gram-stain-negative strain, designated JM10B15T, was isolated from pond water for Litopenaeus vannamei collected from Jiangmen City, Guangdong province, south PR China. Cells of the strain were aerobic, rod-shaped, and motile by lateral flagella. JM10B15T could grow at 15–40 °C, pH 6.0–9.5, and in 0–3.0 % NaCl, with optimal growth at 25–35 °C, pH 7.5–8.5, and in 0 % NaCl, respectively. Furthermore, this strain grew well on Reasoner's 2A agar but not on nutrient broth agar or Luria–Bertani agar. JM10B15T was a denitrifying bacterium capable of removing nitrites and nitrates, and three key functional genes, nasA, nirS, and nosZ, were identified in its genome. The results of phylogenetic analyses based on the 16S rRNA gene and genome sequences indicated that JM10B15T belonged to the genus Gemmobacter. JM10B15T showed the highest 16S rRNA sequence similarity to Gemmobacter lutimaris YJ-T1-11T (98.8 %), followed by Gemmobacter aquatilis IFAM 1031T (98.6 %) and Gemmobacter serpentinus HB-1T (98.1 %). The average nucleotide identity and digital DNA–DNA hybridization values between JM10B15T and the other type strains of genus Gemmobacter were 78.1–82.1 % and 18.4–22.1 %, respectively. The major fatty acids of strain JM10B15T were summed feature 8 (C18 : 1 ω6c and/or C18 : 1 ω7c) and C18 : 1 ω7c 11-methyl. In addition, the major respiratory quinone of this novel strain was Q-10, and the predominant polar lipids were phosphatidylglycerol, phosphatidylethanolamine, four unidentified phospholipids, three unidentified lipids, and an unidentified aminophospholipid. Results of analyses of the phylogenetic, genomic, physiological, and biochemical characteristics indicated that JM10B15T represents a novel species of the genus Gemmobacter, for which the name Gemmobacter denitrificans sp. nov. is proposed. The type strain is JM10B15T (=GDMCC 1.4148T=KCTC 8140T).

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“…Nutrient utilisation is also a key determinant in aquaculture efficiency, which needs fundamental and further research and requires the exploration of new feed materials including microalgae. In this issue, Bu et al 5 gave an overview on the history and achievements in aquaculture nutrition research and feed industry in China. Importantly, these authors proposed the direction for the development of feed industry towards environmental friendliness, safety, intelligence and cost‐effectiveness.…”

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confidence: 99%

Novel and continuous scientific and technical breakthroughs increase value and efficiency in aquaculture

Wang,

Nie

2024

Reviews in Aquaculture

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The efficiency of aquaculture in producing high-quality fishery or aquatic products can be significantly improved with methodological breakthroughs and conceptual innovations. 1 The increasing exchanges and cooperations among aquaculture scientists and enterprisers since 2022 should further provoke the idea and technical innovation for the sustainable development of aquaculture. During a visit to Australia in 2023, Dr. Qingchao Wang, a junior editorial board member of this journal and one of the two authors of this editorial, visited functional food exhibitions with aquatic products and discussed about offshore aquaculture and gene editing development with Australian scientists.Coincidently, in this issue, it is found that these topics are well reflected, with articles also covering aquatic animal diseases, immunity, genetics and breeding, nutrition utilisation and feed sources, microbiome and homeostasis, fish exercise and deformities, bioflocs, and sustainability.

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Innovation and development of the aquaculture nutrition research and feed industry in China

Cited by 7 publications

References 151 publications

Molecular cloning and characterization of three carnitine palmitoyltransferase (cpt) isoforms from mud crab (Scylla paramamosain) and their roles in respond to fasting and ambient salinity stress

Molecular cloning and characterization of three carnitine palmitoyltransferase (cpt) isoforms from mud crab (Scylla paramamosain) and their roles in respond to fasting and ambient salinity stress

Gemmobacter denitrificans sp. nov., a denitrifying bacterium, isolated from pond water for Litopenaeus vannamei

Novel and continuous scientific and technical breakthroughs increase value and efficiency in aquaculture

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