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  • Jewish studies  (18)
  • 1
    Online Resource
    Online Resource
    Research Progress on the Fish Complement C3 Gene
    SAABRON PRESS ; 2023
    In:  Israeli Journal of Aquaculture - Bamidgeh Vol. 75 ( 2023-3-17)
    Details
    In: Israeli Journal of Aquaculture - Bamidgeh, SAABRON PRESS, Vol. 75 ( 2023-3-17)
    Abstract: Complement (C) is a serum protein with immunity-related functions and enzymatic activities. It can induce inflammatory responses and antibody formation following activation by substances such as pathogens. Moreover, it is a crucial molecule in the congenital immune defense system. Complement manifests earlier than immunoglobulin in the evolutionary process of fish’s immune system. Therefore, the complement system of fish is vital for congenital and acquired immunities. A complement system is a polymolecule system comprising more than 30 soluble proteins, membrane-bound proteins, and complement receptors. It can be activated through three pathways for immunoregulation, the clearance of the immune complex, etc. The liver primarily produces the fish complement C3, which is a significant component of the complement system of fishes. C3 is the hub of three activation pathways. Research works concerning the structure, generation process, expression, and functions of C3 in fishes are reviewed in this study.
    Type of Medium: Online Resource
    ISSN: 0792-156X , 0792-156X
    URL: Article
    DOI: 10.46989/001c.73361
    Language: English
    Publisher: SAABRON PRESS
    Publication Date: 2023
    detail.hit.zdb_id: 291787-7
    detail.hit.zdb_id: 2542938-3
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  • 2
    Online Resource
    Online Resource
    Effects of dietary starch levels on growth, feed utilization, glucose and lipid metabolism in non-transgenic and transgenic juvenile common carp ( Cyprinus carpio L.)
    SAABRON PRESS ; 2021
    In:  Israeli Journal of Aquaculture - Bamidgeh Vol. 73 ( 2021-5-20)
    Details
    In: Israeli Journal of Aquaculture - Bamidgeh, SAABRON PRESS, Vol. 73 ( 2021-5-20)
    Abstract: This experiment investigated the effects of dietary starch on growth performance, feed utilization, glucose and lipid metabolism of non-transgenic and growth hormone (GH) transgenic juvenile common carp ( Cyprinus carpio L.). Transgenic common carp (TG fish) and non-transgenic (NT fish) were fed diets with five starch levels (0, 10%, 20%, 30%, 40%). After 41 days, TG fish showed higher growth and feed utilization at low-starch diets, while similar growth, lower feeding rate (FR) and slightly higher feed efficiency (FE) was observed at high-starch diets. Lower plasma glucose level and hepatic glycogen content were observed in TG fish, which could be related to the higher glycolysis (high gene expression of hexokinase (hk), p 〈 0.01) and gluconeogenesis (high gene expression of fructose-1,6-bisphosphatase (fbpase), p 〈 0.01; glucose-6-phosphatase (g6pase), p 〈 0.01) of TG fish. Compared to NT fish, weakened fat synthesis (lower gene expression of fatty-acid synthase (fas), p 〈 0.01; acetyl-CoA carboxylase 1 (acc1), p 〈 0.01; acyl-CoA desaturase 1 (scd1), p = 0.011) and enhanced fatty acid oxidation (high gene expression of hormone-sensitive lipase (hsl), p =0.01; carnitine palmitoyl transferase 1a (cpt-1a), p 〈 0.01), led to the decrease of body lipid content in TG fish. On the other hand, with increased dietary starch, increased body lipid and hepatic glycogen contents were observed in both TG and NT fish, suggesting that high dietary starch levels promoted glycolysis, fat synthesis and inhibited gluconeogenesis, fatty acid β-oxidation. Overall, TG fish showed higher growth performance at low starch diets, and higher ability of glycolysis, fatty acid oxidation and lower lipid synthesis than the NT fish.
    Type of Medium: Online Resource
    ISSN: 0792-156X , 0792-156X
    URL: Article
    DOI: 10.46989/001c.24282
    Language: English
    Publisher: SAABRON PRESS
    Publication Date: 2021
    detail.hit.zdb_id: 291787-7
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  • 3
    Online Resource
    Online Resource
    Synthesis, Structure and Sensing Property of Novel Zinc(II) Framework with Mixed 3,3′,5,5′‐Tetra(1H‐imidazol‐1‐yl)biphenyl and 2,6‐Naphthalenedicarboxylate Ligands
    Wiley ; 2019
    In:  Israel Journal of Chemistry Vol. 59, No. 3-4 ( 2019-03), p. 267-272
    Details
    In: Israel Journal of Chemistry, Wiley, Vol. 59, No. 3-4 ( 2019-03), p. 267-272
    Abstract: With increasing use of antibiotics, it becomes more and more important for selectively and sensitively detecting antibiotics. In this work, a new Zn(II) framework [Zn 2 (L)(NDC)(HCOO) 2 ] ⋅ 2H 2 O ( 1 ) was achieved by using organic ligands 3,3′,5,5′‐tetra(1H‐imidazol‐1‐yl)biphenyl (L) and 2,6‐naphthalenedicarboxylic acid (H 2 NDC). 1 has three‐dimensional (3D) framework structure and exhibits strong luminescence in the solid state as well as in the suspended acetonitrile solution. Furthermore, it was found that the emission of 1 can be quenched efficiently by trace amounts of nitrofuran antibiotics (NFs) including nitrofurazone (NZF), furazolidone (FZD) and nitrofurantoin (NFT) with detection limits of 184, 243 and 263 ppb for NZF, FZD and NFT, respectively, even in the presence of other antibiotics such as penicillin (PCL).
    Type of Medium: Online Resource
    ISSN: 0021-2148 , 1869-5868
    URL: Issue
    URL: Article
    DOI: 10.1002/ijch.v59.3-4
    DOI: 10.1002/ijch.201800138
    Language: English
    Publisher: Wiley
    Publication Date: 2019
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  • 4
    Online Resource
    Online Resource
    Efficacy of Alfalfa Saponins on Promoting Pigmentation by Astaxanthin in Blood Parrot Fish (Vieja synspila♀× Amphilophus citrinellus♂)
    SAABRON PRESS ; 2016
    In:  Israeli Journal of Aquaculture - Bamidgeh Vol. 68 ( 2016-1-1)
    Details
    In: Israeli Journal of Aquaculture - Bamidgeh, SAABRON PRESS, Vol. 68 ( 2016-1-1)
    Abstract: This study was conducted to evaluate the effect of alfalfa saponins on pigmentation induced by astaxanthin in 540 blood parrot fish (Vieja synspila ♀ × Amphilophus citrinellus ♂). The fish were divided into six treatment groups: basal diet; a diet supplemented with 3‰ astaxanthin; three diets with 3‰ astaxanthin plus 3‰, 6‰ or 12‰ alfalfa saponins respectively; and a diet supplemented with 4‰ alfalfa saponins alone. The fish were maintained in three aquaria per treatment. At 20, 40, 60, and 80 days, 6 blood parrot fish per aquarium were sampled. At the end of the experiment, the carotenoid content of scales, skin, and caudal fin in groups supplied with 3‰ astaxanthin plus alfalfa saponins were significantly higher than the control. The redness values, a*, of the body and caudal fins in these groups increased significantly. Conversely, the cholesterol and triglyceride content decreased significantly. Non-esterified fatty acid content and lysozyme activity were significantly higher in the three groups fed supplemented astaxanthin diets with the addition of alfalfa saponins, than the group fed a diet supplemented with 3‰ astaxanthin alone (P 〈 0.05). The results show that the addition of alfalfa saponins to diets supplemented with astaxanthin, improves astaxanthin absorption and utilization.
    Type of Medium: Online Resource
    ISSN: 0792-156X , 0792-156X
    URL: Article
    DOI: 10.46989/001c.20821
    Language: English
    Publisher: SAABRON PRESS
    Publication Date: 2016
    detail.hit.zdb_id: 291787-7
    detail.hit.zdb_id: 2542938-3
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  • 5
    Online Resource
    Online Resource
    Study a natural co-infection case of Largemouth bass ranavirus, Aeromonas vickert , and Aeromonas hydrophila in Micropterus salmoides
    SAABRON PRESS ; 2023
    In:  Israeli Journal of Aquaculture - Bamidgeh Vol. 75, No. 2 ( 2023-10-9)
    Details
    In: Israeli Journal of Aquaculture - Bamidgeh, SAABRON PRESS, Vol. 75, No. 2 ( 2023-10-9)
    Abstract: The largemouth bass (LMB) is a significant aquaculture species widely cultivated in China. High-density culture has led to an increased susceptibility of LMB to infection by the opportunistic bacterium Aeromonas. This study investigates a case of natural co-infection with the Largemouth bass ranavirus (LMBV), Aeromonas veronii , and Aeromonas hydrophila in Sichuan Province, China. To identify the causative agents of the infection, two bacterial strains were isolated from diseased LMB specimens and identified through 16S rRNA sequencing as Aeromonas vickert and Aeromonas hydrophila , both of which are gram-negative bacteria. The infection of LMBV was confirmed through polymerase chain reaction (PCR) analysis of tissue samples from the infected fish. After two blind passes of the virus fluid, the typical cytopathological effect (CPE) can be observed. Phylogenetic analysis of the virus sequences showed the highest similarity with LMBV isolates (ON418985 and MW630113) from Guangdong Province, China. This study offers important insights into diagnosing mixed infections in LMB and provides a reference for future research.
    Type of Medium: Online Resource
    ISSN: 0792-156X , 0792-156X
    URL: Article
    DOI: 10.46989/001c.88364
    Language: English
    Publisher: SAABRON PRESS
    Publication Date: 2023
    detail.hit.zdb_id: 291787-7
    detail.hit.zdb_id: 2542938-3
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  • 6
    Online Resource
    Online Resource
    Effects of Dietary Quercetin on the Growth Performance, Digestive Enzymes and Antioxidant potential in the Hepatopancreas of Tilapia (Oreochromis niloticus)
    SAABRON PRESS ; 2014
    In:  Israeli Journal of Aquaculture - Bamidgeh Vol. 66 ( 2014-1-1)
    Details
    In: Israeli Journal of Aquaculture - Bamidgeh, SAABRON PRESS, Vol. 66 ( 2014-1-1)
    Abstract: This trial was conducted to investigate the effects of Quercetin on the growth performance, activities of digestive enzymes, and antioxidant potential in the hepatopancreas of tilapia. Four hundred tilapia (Oreochromis niloticus), were randomly divided into five treatment groups with four replicates in each group/ 20 fish per replicate. The dietary Quercetin levels of the five treatment groups were 0, 200, 400, 800, and 1600 mg/kg, respectively. The trial period was 49 days. Rates of weight gain, special growth, feed conversion, and protein efficiency ratio of the Quercetin diet groups improved significantly (P 〈 0.05) compared with the control group. No significant difference in survival rates were found between the control group and all Quercetin diet groups (P 〉 0.05). The activity of protease, lipase, and amylase, in the stomach and intestine significantly increased when the dietary Quercetin level was above 400 mg/kg. The malondialdehyde level, and total antioxidant capacity in the hepatopancreas of Quercetin diet groups decreased significantly while catalase activity of Quercetin diet groups (apart from the group fed 1600 mg/kg Quercetin) increased significantly (P 〈 0.05) with no significant differences between all Quercetin groups. Superoxide dismutase activity was not affected by Quercetin supplementation. The results of the present study suggested that Quercetin supplementation in a tilapia diet could have beneficial effects on digestive enzyme activity, antioxidant potential in the hepatopancreas, and improve growth performance.
    Type of Medium: Online Resource
    ISSN: 0792-156X , 0792-156X
    URL: Article
    DOI: 10.46989/001c.20770
    Language: English
    Publisher: SAABRON PRESS
    Publication Date: 2014
    detail.hit.zdb_id: 291787-7
    detail.hit.zdb_id: 2542938-3
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  • 7
    Online Resource
    Online Resource
    Effects of Dietary Lipid and Carbohydrate and Their Interaction on Growth Performance and Body Composition of Juvenile Blunt Snout bream, Megalobrama amblycephala
    SAABRON PRESS ; 2014
    In:  Israeli Journal of Aquaculture - Bamidgeh Vol. 66 ( 2014-1-1)
    Details
    In: Israeli Journal of Aquaculture - Bamidgeh, SAABRON PRESS, Vol. 66 ( 2014-1-1)
    Abstract: The effects of dietary lipid and carbohydrate, and their interaction, on growth performance and body composition of juvenileblunt snout bream Megalobrama amblycephala were investigated. Fish were fed one of eight isonitrogenous (32% crude protein) diets containing 4% or 7% lipids and 25%, 30%, 35%, or 40% carbohydrate for nine weeks. Weight gain, feed conversion ratio, protein efficiency ratio, and nitrogen and energy retention improved significantly as the dietary lipid level increased, while there were no significant differences in these parameters within the tested range of carbohydrate levels. The interaction between the lipid and carbohydrate levels had positive effects on weight gain, feed conversion ratio, and protein efficiency ratio when fish were fed increased carbohydrates and 7% lipid. The intraperitoneal fat ratio and liver lipid content were significantly affected by the dietary carbohydrate level and reached maximum values in fish fed 40% and 30% carbohydrates, respectively. Further, the dietary lipid and carbohydrate levels significantly affected body moisture and lipid content while there were no significant differences in body protein, ash, energy, or muscle and liver glycogen contents. Results indicate that the optimal dietary carbohydrate content for juvenile M. amblycephala is approximately 30% when dietary lipid is 4%. However, juvenile M. amblycephala can efficiently utilize 40% dietary carbohydrate with a dietary lipid content of 7%.
    Type of Medium: Online Resource
    ISSN: 0792-156X , 0792-156X
    URL: Article
    DOI: 10.46989/001c.20762
    Language: English
    Publisher: SAABRON PRESS
    Publication Date: 2014
    detail.hit.zdb_id: 291787-7
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  • 8
    Online Resource
    Online Resource
    Study of Photoluminescence Excitation Spectra of Tris(8‐hydroxyquinoline)aluminum(III) (Alq 3 ) in Solutions and Films
    Wiley ; 2014
    In:  Israel Journal of Chemistry Vol. 54, No. 7 ( 2014-07), p. 927-930
    Details
    In: Israel Journal of Chemistry, Wiley, Vol. 54, No. 7 ( 2014-07), p. 927-930
    Abstract: Absorption, photoluminescence, and photoluminescence excitation (PLE) spectra have been investigated for tris(8‐hydroxyquinoline)aluminum(III) (Alq 3 ) in solution at various Alq 3 concentrations and in doped and neat films. The redshifted PLE spectra, with respect to the absorption spectra, are obtained, together with a dip located near the absorption band peak. The dip becomes deeper with increasing concentration. It is found that the unusual PLE spectra are caused by the penetration depth effect, not by previously suggested microcrystallites of Alq 3 .
    Type of Medium: Online Resource
    ISSN: 0021-2148 , 1869-5868
    URL: Issue
    URL: Article
    DOI: 10.1002/ijch.v54.7
    DOI: 10.1002/ijch.201400053
    Language: English
    Publisher: Wiley
    Publication Date: 2014
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  • 9
    Online Resource
    Online Resource
    Natural Products from Diaporthe arecae with Anti‐Angiogenic Activity
    Wiley ; 2019
    In:  Israel Journal of Chemistry Vol. 59, No. 5 ( 2019-05), p. 439-445
    Details
    In: Israel Journal of Chemistry, Wiley, Vol. 59, No. 5 ( 2019-05), p. 439-445
    Abstract: A new indoleglycerol, designated as arecine ( 1 ), and twenty‐three known diketopiperazines 2 – 24 were isolated from the endophytic fungus Diaporthe arecae associated with mangrove Kandelia obovate . Structures of all secondary metabolites 1 – 24 were identified on the basis of their spectrometric data, especially the nuclear magnetic resonance, optical rotation, and mass data. The absolute stereochemistry of compound 1 was determined by comparing its experimental electronic circular dichroism spectrum to those of in silico generated. Moreover, the 1 H and 13 C NMR spectroscopic data of isolated diketopiperazines 3 – 24 were measured in dimethyl sulfoxide‐ d 6 and presented in Table 2 for a convenient comparison. Pharmacological study showed cordysinin A ( 2 ) possessed mild anti‐angiogenic activity, which suppressed tube formation with an IC 50 value of 15.1±0.2 μg/mL.
    Type of Medium: Online Resource
    ISSN: 0021-2148 , 1869-5868
    URL: Issue
    URL: Article
    DOI: 10.1002/ijch.v59.5
    DOI: 10.1002/ijch.201800158
    Language: English
    Publisher: Wiley
    Publication Date: 2019
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  • 10
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    Online Resource
    Effects of dietary xylan on growth performance, digestive enzyme activity and intestinal morphology of juvenile turbot (Scophthalmus maximus L.)
    SAABRON PRESS ; 2015
    In:  Israeli Journal of Aquaculture - Bamidgeh Vol. 67 ( 2015-1-1)
    Details
    In: Israeli Journal of Aquaculture - Bamidgeh, SAABRON PRESS, Vol. 67 ( 2015-1-1)
    Abstract: A 12-week feeding trial was conducted to evaluate the effects of dietary xylan on growth performance, digestive enzyme activity, and intestinal morphology of juvenile turbot (Scophthalmus maximus L.) with a mean initial body weight of 4.63 ± 0.01 g. Five isonitrogenous and isolipidic diets were formulated to contain 0%, 0.625%, 1.25%, 2.5% and 5% xylan, respectively. The dietary supplementation of 5% xylan significantly decreased (P 〈 0.05) fish feed intake, growth performance and feed utilization, but these parameters were significantly improved (P 〈 0.05) by 1.25% dietary xylan supplement. Similar trends were observed in whole-body protein and lipid contents of experimental fish. The activity of intestinal caseinolytic, trypsin, and intestinal amylase were inversely related to the supplemented dietary xylan (P 〈 0.05). The integrity of the distal intestine was impaired and the length of intestinal epithelium (lIE) significantly declined (P 〈 0.05) when 5% xylan was added to the diet. Results of the present study suggest that dietary xylan affected the growth performance and feed utilization of juvenile turbot, with beneficial effects at an intermediate supplemental level of 1.25% but with adverse effects at higher supplemental levels (5%).
    Type of Medium: Online Resource
    ISSN: 0792-156X , 0792-156X
    URL: Article
    DOI: 10.46989/001c.20730
    Language: English
    Publisher: SAABRON PRESS
    Publication Date: 2015
    detail.hit.zdb_id: 291787-7
    detail.hit.zdb_id: 2542938-3
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