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Transcriptomic analysis reveals the hepatopancreas metabolic mechanisms of mud crab Scylla paramamosain fed diets with terrestrial animal fat sources replacing fish oil SCIE
期刊论文 | 2025 , 54 | COMPARATIVE BIOCHEMISTRY AND PHYSIOLOGY D-GENOMICS & PROTEOMICS
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The transcriptome analysis following an 8-week feeding trial was employed to investigate the impacts of dietary terrestrial animal fats (TAFs includes lard oil (LO), beef tallow (BT) and poultry oil (PO)) replacing fish oil (FO) on the metabolic mechanism in hepatopancreas of mud crabs (Scylla paramamosain). The fatty acid (FA) transport, biosynthesis and lipid absorption and digestion were reduced through the regulation of PPAR pathway and the mRNA expressions of monoglyceride lipases (mgls), phosphatidate phosphatase-1 (pap1), acyl-sn-glycerol-3phosphate acyltransferase delta (plcd), cAMP-dependent protein kinase catalytic (pkac), FA-binding protein 1 (fabp-1), FA transport protein 4 (fatp-4), short/branched chain specific acyl-CoA dehydrogenase (acdsb) and enoyl-CoA delta isomerase 2 (eci2), etc., after replacing FO with BT or LO. At the same time, dietary BT and LO regulated glycolysis, gluconeogenesis and insulin signals through increasing the genes of pyruvate dehydrogenase E1 (pdh), phosphoenolpyruvate carboxykinase (pepck) and phosphatidylinositol 3-kinase (pi3k) and regulated immunity status by down regulating the mRNA expressions of heat shock proteins 27 (hsp 27), cytochrome P450 (cyp 450), etc. Replacing FO with PO enhanced phospholipid storage, fat deposition, and inhibited glucose transport by up regulating pap1, mgls, lipin 1, lipin beta and down regulating glycosyl transferase (gt) and glucose transporter type 4 (glut4) expressions. The present study showed the signaling pathways and genes that were significantly regulated by TAFs replacing dietary FO, and revealed molecular mechanisms of TAFs in S. paramamosain. This would be conducive to the application of TAFs in aquatic feed.

Keyword :

Fish oil replacement Fish oil replacement Scylla paramamosain Scylla paramamosain Signaling pathway Signaling pathway Terrestrial animal fats Terrestrial animal fats Transcriptome Transcriptome

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GB/T 7714 Liu, Jinjin , Cui, Shihui , Ye, Zihao et al. Transcriptomic analysis reveals the hepatopancreas metabolic mechanisms of mud crab Scylla paramamosain fed diets with terrestrial animal fat sources replacing fish oil [J]. | COMPARATIVE BIOCHEMISTRY AND PHYSIOLOGY D-GENOMICS & PROTEOMICS , 2025 , 54 .
MLA Liu, Jinjin et al. "Transcriptomic analysis reveals the hepatopancreas metabolic mechanisms of mud crab Scylla paramamosain fed diets with terrestrial animal fat sources replacing fish oil" . | COMPARATIVE BIOCHEMISTRY AND PHYSIOLOGY D-GENOMICS & PROTEOMICS 54 (2025) .
APA Liu, Jinjin , Cui, Shihui , Ye, Zihao , Chen, Jing , Tang, Mengyao , Chen, Chaojia et al. Transcriptomic analysis reveals the hepatopancreas metabolic mechanisms of mud crab Scylla paramamosain fed diets with terrestrial animal fat sources replacing fish oil . | COMPARATIVE BIOCHEMISTRY AND PHYSIOLOGY D-GENOMICS & PROTEOMICS , 2025 , 54 .
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Eucommia ulmoides leaf extracts combined with Astragalus polysaccharides: Effects on growth, antioxidant capacity, and intestinal inflammation in juvenile large yellow croaker (Larimichthys crocea) SCIE
期刊论文 | 2025 , 161 | FISH & SHELLFISH IMMUNOLOGY
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Eucommia ulmoides leaf extract (ELE) and Astragalus polysaccharides (APS) have been widely used as immunopotentiators in aquaculture. Our prior research on large yellow croaker (Larimichthys crocea) demonstrated that dietary 1 g/kg APS bolstered fish immunity and antioxidant defense. However, the combined effect of ELE and APS in juvenile large yellow croaker remains unknown. Hence, this study aimed to investigate the synergistic effect of ELE and APS on the growth, antioxidant capacity, and intestinal inflammation in large yellow croaker. A total of 1200 fish were divided into five groups and fed diets with 1 g/kg APS and varying ELE levels: 0 g/kg (ELE0), 0.25 g/kg (ELE0.25), 0.5 g/kg (ELE0.5), 1 g/kg (ELE1), and 2 g/kg (ELE2). After an 8-week feeding period, the ELE0.5 and ELE1 groups showed superior weight gain rate, specific growth rate, and feed efficiency compared to other groups. The ELE1 group also had elevated trypsin and lipase activities in the intestine, whereas alpha-amylase activity was not influenced by ELE addition. Antioxidant enzyme activities, such as hepatopancreas superoxide dismutase (SOD) and glutathione peroxidase (GPX) in the ELE1 group were significantly enhanced, while malondialdehyde (MDA) levels decreased with increasing ELE. Intestinal morphology revealed the highest villi height in proximal and distal intestines of ELE1 group, with no significant change in mucosal thickness. In terms of cytokines, the ELE1 group showed significant down-regulation of pro-inflammatory (tnf-alpha, il-1 beta and il-6) and up-regulation of anti-inflammatory (il-4/13a, il-10 and tgf-beta) markers, modulated by MAPK and mTOR signaling. In conclusion, this study indicates that supplementing diets with 1 g/kg ELE alongside 1 g/kg APS in juvenile large yellow croaker offers the best synergistic effect on fish immunity, including enhanced growth, antioxidant capacity, and relieved intestinal inflammation through MAPK and mTOR signaling.

Keyword :

Anti-inflammation Anti-inflammation Antioxidant capacity Antioxidant capacity Astragalus polysaccharides Astragalus polysaccharides Eucommia ulmoides leaf extracts Eucommia ulmoides leaf extracts Large yellow croaker ( Larimichthys crocea ) Large yellow croaker ( Larimichthys crocea )

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GB/T 7714 Shao, Jianchun , Wang, Xuexi , Liu, Qianqian et al. Eucommia ulmoides leaf extracts combined with Astragalus polysaccharides: Effects on growth, antioxidant capacity, and intestinal inflammation in juvenile large yellow croaker (Larimichthys crocea) [J]. | FISH & SHELLFISH IMMUNOLOGY , 2025 , 161 .
MLA Shao, Jianchun et al. "Eucommia ulmoides leaf extracts combined with Astragalus polysaccharides: Effects on growth, antioxidant capacity, and intestinal inflammation in juvenile large yellow croaker (Larimichthys crocea)" . | FISH & SHELLFISH IMMUNOLOGY 161 (2025) .
APA Shao, Jianchun , Wang, Xuexi , Liu, Qianqian , Lv, Huiyuan , Qi, Qiong , Li, Changhui et al. Eucommia ulmoides leaf extracts combined with Astragalus polysaccharides: Effects on growth, antioxidant capacity, and intestinal inflammation in juvenile large yellow croaker (Larimichthys crocea) . | FISH & SHELLFISH IMMUNOLOGY , 2025 , 161 .
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Emulsifier is beneficial for declining dietary lipid requirement of aquatic crustaceans by accelerating the absorption, transport and deposition of lipids: A case study in mud crab (Scylla paramamosain) SCIE
期刊论文 | 2025 , 326 | ANIMAL FEED SCIENCE AND TECHNOLOGY
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To investigate the potential of emulsifiers in reducing dietary lipid requirements of juvenile Scylla paramamosain and the associated physiological and biochemical responses, three isonitrogenous experimental diets (45 % crude protein content) with 10 % lipid content (FO, fish oil as the main lipid source), 5 % lipid content (LF) and 5 % lipid content with the addition of 0.2 % emulsifier (LF+EMU) were formulated. A total of 30 juveniles mud crabs (30.56 +/- 0.56 g) per treatment was cultured for 12 weeks in single crab cells. Compared to LF, the LF+EMU group had higher weight gain and specific growth rate. Crabs in the LF+EMU group had significantly lower lipid contents in muscle and hepatopancreas, along with reduced lipase activity, resorptive and blister-like cell quantity in hepatopancreas than those in FO group, while these values were higher than that in crabs from LF group. Emulsifier supplementation into LF diet elevated the activity of superoxide dismutase, glutathione peroxidase and catalase, while exhibiting a significantly decrease in malondialdehyde content in hepatopancreas. Furthermore, the addition of an emulsifier into LF diet did not only upregulate genes associated with lipid anabolism like sterol regulatory element binding protein 1, glucose-6-phosphate dehydrogenase, delta-9 fatty acyl desaturase and fatty acid synthase, but also upregulate genes related to lipid catabolism such as acyl-CoA oxidase 3, carnitine palmitoyl transferase I, and transport such as fatty acid-binding protein 1 and 3, fatty acid transport protein 4, scavenger receptor b, low-density lipoprotein receptor and low-density lipoprotein receptorrelated protein 2. The analysis of intestinal microbiota revealed that crabs fed with LF+EMU and FO had significantly higher Simpson, Shannon, Ace, and Chao 1 than those fed with LF diet. In the LF+EMU treatment, the abundances of Fusobacteria and Bacteroidetes phyla, along with the genera Photobacterium and Hypnobacterium, were significantly elevated compared to LF treatment, the abundances of Candidatus_Hepatoplasma genera presented an opposite trend. Therefore, emulsifier supplementation in low-fat diet could regulate intestinal microbiota, accelerate secretion and activities of digestive enzymes, facilitate the upregulation of genes associated with lipid metabolism, and thus improve the absorption, transport, deposition of lipid and growth performance and indicate the potential in diminishing dietary lipid requirement of S. paramamosain.

Keyword :

Emulsifier Emulsifier Intestinal microbiota Intestinal microbiota Lipid metabolism Lipid metabolism Low-fat diet Low-fat diet Scylla paramamosain Scylla paramamosain

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GB/T 7714 Ye, Zihao , Liu, Jinjin , Cui, Shihui et al. Emulsifier is beneficial for declining dietary lipid requirement of aquatic crustaceans by accelerating the absorption, transport and deposition of lipids: A case study in mud crab (Scylla paramamosain) [J]. | ANIMAL FEED SCIENCE AND TECHNOLOGY , 2025 , 326 .
MLA Ye, Zihao et al. "Emulsifier is beneficial for declining dietary lipid requirement of aquatic crustaceans by accelerating the absorption, transport and deposition of lipids: A case study in mud crab (Scylla paramamosain)" . | ANIMAL FEED SCIENCE AND TECHNOLOGY 326 (2025) .
APA Ye, Zihao , Liu, Jinjin , Cui, Shihui , Chen, Jing , Tang, Mengyao , Chen, Chaojia et al. Emulsifier is beneficial for declining dietary lipid requirement of aquatic crustaceans by accelerating the absorption, transport and deposition of lipids: A case study in mud crab (Scylla paramamosain) . | ANIMAL FEED SCIENCE AND TECHNOLOGY , 2025 , 326 .
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The same species, different nutrients: Lipidomics analysis of muscle in mud crabs (Scylla paramamosain) fed with lard oil and fish oil SCIE
期刊论文 | 2024 , 440 | FOOD CHEMISTRY
WoS CC Cited Count: 2
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Aiming to assess the effects of lard oil (LO) and fish oil (FO) on the nutritional value of mud crabs (Scylla paramamosain), non-targeted lipidomics analysis was performed on the muscle of crabs after eight weeks of feeding trail. Compared to FO, dietary LO reduced the content of phosphatidylethanolamine (PE) and phosphatidylserine (PS) with 18:0 bound at sn-1/3 site, the content of ether phospholipids containing 20:5n-3 (EPA) and 22:6n-3 (DHA) combined at sn-2 site, and increased the content of ether PE containing 18:0 and 18:1n-9. Furthermore, the deposition of 16:0, 16:1n-7, 18:2n-6, 18:3n-3, 20:4n-6, EPA and DHA at each site of PE, PS, phosphatidylcholine and/or triacylglycerols were reduced by dietary LO, while the DHA content at the sn-2 position of PE was increased. In conclusion, the nutritional value of mud crabs was reduced by dietary LO with the manifestation of variation in FA composition and positional distribution on phospholipids.

Keyword :

Ether phospholipids Ether phospholipids Fatty acid composition Fatty acid composition Lipid molecules Lipid molecules Positional distribution Positional distribution Scylla paramamosain Scylla paramamosain Untargeted lipidomics Untargeted lipidomics

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GB/T 7714 Wang, Xuexi , Cui, Shihui , Liu, Jinjin et al. The same species, different nutrients: Lipidomics analysis of muscle in mud crabs (Scylla paramamosain) fed with lard oil and fish oil [J]. | FOOD CHEMISTRY , 2024 , 440 .
MLA Wang, Xuexi et al. "The same species, different nutrients: Lipidomics analysis of muscle in mud crabs (Scylla paramamosain) fed with lard oil and fish oil" . | FOOD CHEMISTRY 440 (2024) .
APA Wang, Xuexi , Cui, Shihui , Liu, Jinjin , Ye, Zihao , Xu, Yifang , Wang, Ziyi et al. The same species, different nutrients: Lipidomics analysis of muscle in mud crabs (Scylla paramamosain) fed with lard oil and fish oil . | FOOD CHEMISTRY , 2024 , 440 .
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Effects of terrestrial animal fats replacing dietary fish oil on the growth performance, antioxidant capacity and lipid metabolism in juvenile Scylla paramamosain SCIE
期刊论文 | 2024 , 35 | AQUACULTURE REPORTS
WoS CC Cited Count: 3
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Four experimental diets containing 45% crude protein and 11% crude lipid were formulated by replacing total fish oil (FO) with poultry oil (PO), beef tallow (BT) and lard oil (LO) to evaluate the effects of terrestrial animal fats (TAFs) replacing dietary FO in juvenile green mud crabs (Scylla paramamosain). A total of 120 female juveniles (initial body weight 43.23 +/- 0.21 g) was randomly assigned to four diet (three replicates per diet) and stocked into single crab cells (0.23 m x 0.15 m x 0.33 m, width x height x length) with circulating seawater (25-29 degrees C) for 8 weeks. Compared to FO, crabs fed BT and LO group had about 20% lower weight gain, and significantly lower specific growth rate, feed efficiency and molting ratio, hepatopancreas and muscle lipid, hemolymph total triglyceride contents, and lipase activity, but had approximately 400% higher hepatopancreas aspartate aminotransferase and 100% higher alanine aminotransferase activities. There was no difference in growth performance and feed utilization between PO and other groups. The contents of linoleic acids (18:2n-6) in hepatopancreas and muscle were higher in PO group. TAFs groups had significantly lower docosahexaenoic acids (22:6n-3) and total n-3 polyunsaturated fatty acids contents, as well as lower elongase of very long-chain fatty acids 4, acyl-CoA oxidase 3 and fatty acid transport protein 4 mRNA levels. BT and LO groups had lower mRNA levels of delta -6 fatty acyl desaturase, sterol regulatory element binding protein -1, fatty acid synthase, 6-phosphogluconate dehydrogenase and acetyl-CoA carboxylase. Therefore, dietary BT and LO could reduce the health status and lipid content via decreasing lipase activity, upregulating fatty acid beta-oxidation, downregulating lipogenesis and inhibiting the transporting and metabolizing of long chain polyunsaturated fatty acids, thus decrease the growth performance of mud crab. Moreover, PO could be a potential FO substitute for juvenile S. paramamosain.

Keyword :

Beef tallow Beef tallow Fish oil replacement Fish oil replacement Lard oil Lard oil Long-chain polyunsaturated fatty acid Long-chain polyunsaturated fatty acid Poultry oil Poultry oil

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GB/T 7714 Wang, Xuexi , Liu, Jinjin , Cui, Shihui et al. Effects of terrestrial animal fats replacing dietary fish oil on the growth performance, antioxidant capacity and lipid metabolism in juvenile Scylla paramamosain [J]. | AQUACULTURE REPORTS , 2024 , 35 .
MLA Wang, Xuexi et al. "Effects of terrestrial animal fats replacing dietary fish oil on the growth performance, antioxidant capacity and lipid metabolism in juvenile Scylla paramamosain" . | AQUACULTURE REPORTS 35 (2024) .
APA Wang, Xuexi , Liu, Jinjin , Cui, Shihui , Wang, Ziyi , Ye, Zihao , Xu, Yifang et al. Effects of terrestrial animal fats replacing dietary fish oil on the growth performance, antioxidant capacity and lipid metabolism in juvenile Scylla paramamosain . | AQUACULTURE REPORTS , 2024 , 35 .
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Effects of dietary octacosanol supplementation on growth, feed utilization, and physiological and molecular responses of red claw crayfish (Cherax quadricarinatus) SCIE
期刊论文 | 2024 , 32 (5) , 5461-5494 | AQUACULTURE INTERNATIONAL
WoS CC Cited Count: 2
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Crayfish species like Cherax quadricarinatus are crucial nutrients that contribute to the world economy but face challenges in production due to dietary supplements. Octacosanol offers diverse health benefits, from immunity boosts to anti-inflammatory and anti-tumor effects. The current investigation assessed the ovarian changes, immune reaction, availability of antioxidants, gene response pattern, and entire organ performance of the red claw crayfish after supplementation with different levels of octacosanol. Two hundred twenty-five C. quadricarinatus with an initial weight of 53 +/- 1.11 (g/crayfish) were randomly stocked into fiberglass tanks (15 crayfish/tank) and fed each day with three diverse dietary octacosanols. Different levels of octacosanol (4, 8, 12, and 16 mg/kg) were tested in triplicates over 60 days, denoted as D1, D2, D3, and D4, respectively, excluding the control group. The study revealed that 8 mg/kg octacosanol effectively enhances growth and feed utilization in C. quadricarinatus, while also improving ovarian performance by increasing hepatosomatic index (HSI), gonadosomatic index (GSI), and condition factor (CF). Additionally, it decreased levels of MDA and NO in crayfish. Supplementation with 16 mg/kg octacosanol boosted antioxidant capacity by enhancing activities of T-AOC and SOD, as well as influencing nonspecific immune enzymes in the hepatopancreas at doses of D3 (12 mg/kg) and D4 (16 mg/kg). Furthermore, it positively impacted GLU and protein profiles while reducing levels of T-BIL, T-CHOL, TG, LDL-c, and VLDL-c in crayfish. These dietary interventions also regulated gene expression associated with reproduction, lipid metabolism, antioxidants, and immune response in various organs of C. quadricarinatus. Octacosanol demonstrated potential as a safe and effective feed additive. According to quadratic regression analysis, nutritional supplementation of octacosanol at 9 mg/kg diet is considered the recommended dosage in the red claw crayfish diet.

Keyword :

Antioxidant activity Antioxidant activity Growth performance Growth performance Nonspecific immunity Nonspecific immunity Nutrigenomics Nutrigenomics Octacosanol Octacosanol Ovarian development Ovarian development Red claw crayfish (Cherax quadricarinatus) Red claw crayfish (Cherax quadricarinatus)

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GB/T 7714 Alhoshy, Mayada , Shehata, Akram Ismael , Habib, Yusuf Jibril et al. Effects of dietary octacosanol supplementation on growth, feed utilization, and physiological and molecular responses of red claw crayfish (Cherax quadricarinatus) [J]. | AQUACULTURE INTERNATIONAL , 2024 , 32 (5) : 5461-5494 .
MLA Alhoshy, Mayada et al. "Effects of dietary octacosanol supplementation on growth, feed utilization, and physiological and molecular responses of red claw crayfish (Cherax quadricarinatus)" . | AQUACULTURE INTERNATIONAL 32 . 5 (2024) : 5461-5494 .
APA Alhoshy, Mayada , Shehata, Akram Ismael , Habib, Yusuf Jibril , Wang, Xuexi , Wang, Yilei , Zhang, Ziping . Effects of dietary octacosanol supplementation on growth, feed utilization, and physiological and molecular responses of red claw crayfish (Cherax quadricarinatus) . | AQUACULTURE INTERNATIONAL , 2024 , 32 (5) , 5461-5494 .
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饲料中添加黄芪多糖对刺参生长性能、肠道结构和菌群的影响
期刊论文 | 2024 , (21) , 67-73 | 饲料研究
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试验旨在研究饲料中添加不同水平的黄芪多糖(APS)对刺参生长性能、肠道结构和菌群的影响。试验选取450头初重为(62.35±4.17) g的刺参随机分为3组,每组5个重复,每个重复30头刺参。Control组、CHM1组和CHM2组分别饲喂添加0、100和200 mg/kg APS的饲料,试验期60 d。结果显示,CHM2组刺参的末重、增重率和特定生长率显著高于其他组(P<0.05)。CHM2组刺参肠道的绒毛高度和肌层厚度显著高于其他组(P<0.05);CHM1与CHM2组的绒毛宽度显著低于Control组(P<0.05),且CHM1组显著低于CHM2组(P<0.05)。16S测序结果显示,变形菌门、厚壁菌门和拟杆菌门是刺参肠道菌落的优势菌门;CHM2组肠道菌落的多样性显著高于其他组(P<0.05),其特异优势菌落为α-变形菌纲、γ-变形菌目和芽孢杆菌等。研究表明,饲料中添加200 mg/kg APS,能够提高刺参的生长性能,改善肠道形态和细菌群落结构。

Keyword :

刺参 刺参 生长性能 生长性能 肠道结构 肠道结构 肠道菌群 肠道菌群 黄芪多糖 黄芪多糖

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GB/T 7714 王德娟 , 郑清寅 , 邵建春 et al. 饲料中添加黄芪多糖对刺参生长性能、肠道结构和菌群的影响 [J]. | 饲料研究 , 2024 , (21) : 67-73 .
MLA 王德娟 et al. "饲料中添加黄芪多糖对刺参生长性能、肠道结构和菌群的影响" . | 饲料研究 21 (2024) : 67-73 .
APA 王德娟 , 郑清寅 , 邵建春 , 覃盼 , 陈新华 , 王学习 . 饲料中添加黄芪多糖对刺参生长性能、肠道结构和菌群的影响 . | 饲料研究 , 2024 , (21) , 67-73 .
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鸡肝粉部分替代鱼粉对凡纳滨对虾生长性能、饲料利用、消化、抗氧化和免疫能力的影响
期刊论文 | 2023 , (20) , 57-62 | 饲料研究
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试验旨在研究鸡肝粉部分替代鱼粉对凡纳滨对虾生长性能、饲料利用、消化、抗氧化和免疫能力的影响。选取360尾初重(1.20±0.10) g幼虾,随机分为4组,每组3个重复,每个重复30尾虾,FM组、CLM20组、CLM40组、CLM80组分别使用鸡肝粉替代0、20%、40%和80%的鱼粉,各组饲料均等氮、等脂。试验期8 w。结果表明,CLM20组幼虾的增重率(WG)、特定生长率(SGR)、饲料系数(FCR)均显著高于CLM80组(P<0.05)。CLM20组全虾的粗蛋白含量显著高于FM组和CLM80组(P<0.05)。CLM20组幼虾肠道的蛋白酶和脂肪酶活性显著高于CLM80组(P<0.05)。与FM组相比,各CLM组幼虾血清中的超氧化物歧化酶活性显著升高(P<0.05)。凡纳滨对虾血清酸性磷酸酶、碱性磷酸酶和酚氧化酶活性均随鸡肝粉替代鱼粉水平的升高呈现先升高后降低的趋势,分别在CLM40组、CLM20组和CLM20组达到最高(P<0.05),与其肝胰腺中的表达量变化趋势相似。研究表明,鸡肝粉最多能够替代凡纳滨对虾饲料中40%的鱼粉。

Keyword :

凡纳滨对虾 凡纳滨对虾 替代鱼粉 替代鱼粉 生长性能 生长性能 非特异性免疫 非特异性免疫 鸡肝粉 鸡肝粉

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GB/T 7714 王学习 , 陈友 , 王德娟 et al. 鸡肝粉部分替代鱼粉对凡纳滨对虾生长性能、饲料利用、消化、抗氧化和免疫能力的影响 [J]. | 饲料研究 , 2023 , (20) : 57-62 .
MLA 王学习 et al. "鸡肝粉部分替代鱼粉对凡纳滨对虾生长性能、饲料利用、消化、抗氧化和免疫能力的影响" . | 饲料研究 20 (2023) : 57-62 .
APA 王学习 , 陈友 , 王德娟 , 郑运宗 , 陈政榜 , 王余鑫 et al. 鸡肝粉部分替代鱼粉对凡纳滨对虾生长性能、饲料利用、消化、抗氧化和免疫能力的影响 . | 饲料研究 , 2023 , (20) , 57-62 .
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饲料中添加酵母提取物对大口黑鲈生长性能、抗氧化能力和免疫力的影响
期刊论文 | 2023 , (17) , 33-39 | 饲料研究
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试验旨在研究饲料中添加酵母提取物(YE)对大口黑鲈幼鱼生长性能、抗氧化能力和免疫力的影响。选取360尾初重为(14.05±0.28)g的幼鱼,随机分为4组,每组3个重复,每个重复30尾。CON组、YE2组、YE4组、YE6组分别配制YE水平为0、2 000、4 000、6 000 mg/kg的4组等氮(约49%)等脂(约11%)饲料。试验期60 d。结果显示,YE6组大口黑鲈的增重率和特定生长率显著高于CON组(P<0.05),饲料效率和蛋白质效率显著高于CON组和YE2组(P<0.05)。YE4组和YE6组大口黑鲈肠道中蛋白酶和超氧化物歧化酶(SOD)活性显著高于CON组与YE2组(P<0.05)。YE6组大口黑鲈前肠的肌层厚度和绒毛高度显著高于CON组(P<0.05)。YE4组和YE6组大口黑鲈肠道中白细胞介素-1β(IL-1β)、白细胞介素-15(IL-15)和肿瘤坏死因子-α(TNF-α)的表达量显著低于CON组(P<0.05);所有YE组大口黑鲈肠道中转化生长因子-β (TGF-β)和雷帕霉素靶蛋白(TOR)的表达量显著高于CON组(P<0.05);YE2组和YE4组大口黑鲈肠道中的白细胞介素-10 (IL-10)与热休克蛋白70 (HSP70)表达量显著高于CON组(P<0.05),显著低于YE6组(P<0.05)。研究表明,饲料中添加6 000 mg/kg YE能够提高大口黑鲈幼鱼肠道的免疫力和抗氧化能力,增加肠道的吸收面积,提高消化酶活性,进而提高饲料利用率和生长性能。

Keyword :

免疫 免疫 大口黑鲈 大口黑鲈 抗氧化 抗氧化 生长性能 生长性能 酵母提取物 酵母提取物

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GB/T 7714 王学习 , 胡兵 , 张坤 et al. 饲料中添加酵母提取物对大口黑鲈生长性能、抗氧化能力和免疫力的影响 [J]. | 饲料研究 , 2023 , (17) : 33-39 .
MLA 王学习 et al. "饲料中添加酵母提取物对大口黑鲈生长性能、抗氧化能力和免疫力的影响" . | 饲料研究 17 (2023) : 33-39 .
APA 王学习 , 胡兵 , 张坤 , 郑运宗 , 王德娟 , 张蕉南 et al. 饲料中添加酵母提取物对大口黑鲈生长性能、抗氧化能力和免疫力的影响 . | 饲料研究 , 2023 , (17) , 33-39 .
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Beneficial effects of functional ingredients in feed on immunity improvement and growth promotion of aquaculture animals SCIE
期刊论文 | 2023 , 10 | FRONTIERS IN MARINE SCIENCE
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additives additives antioxidant capacity antioxidant capacity growth performance growth performance inflammatory response inflammatory response intestinal morphology intestinal morphology low fish meal diet low fish meal diet

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GB/T 7714 Wang, Xuexi , Shao, Jianchun . Beneficial effects of functional ingredients in feed on immunity improvement and growth promotion of aquaculture animals [J]. | FRONTIERS IN MARINE SCIENCE , 2023 , 10 .
MLA Wang, Xuexi et al. "Beneficial effects of functional ingredients in feed on immunity improvement and growth promotion of aquaculture animals" . | FRONTIERS IN MARINE SCIENCE 10 (2023) .
APA Wang, Xuexi , Shao, Jianchun . Beneficial effects of functional ingredients in feed on immunity improvement and growth promotion of aquaculture animals . | FRONTIERS IN MARINE SCIENCE , 2023 , 10 .
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