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  • Jewish studies  (8)
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  • Jewish studies  (8)
  • 1
    Online Resource
    Online Resource
    Effects of Live Food enrichment on Yellowtail Amberjack Seriola lalandi dorsalis (Gill 1863) Larvae
    SAABRON PRESS ; 2018
    In:  Israeli Journal of Aquaculture - Bamidgeh Vol. 70 ( 2018-1-1)
    Details
    In: Israeli Journal of Aquaculture - Bamidgeh, SAABRON PRESS, Vol. 70 ( 2018-1-1)
    Abstract: Our study examined the effect of live food enrichment on the rearing performance of yellowtail amberjack Seriola lalandi dorsalis from day 3 posthatch (DPH) to 12 DPH. Three rotifer enriched treatments, 1) Nannochloropsis sp, 2) S.presso® (INVE Aquaculture) half dose (Sp1/2), and 3) S.presso® full dose (Sp1) were administered. Growth of yellowtail amberjack larvae was not significantly affected by these enrichments (P 〉 0.05) but final survival rates were significantly affected (P 〈 0.05). Jaw malformation of fish fed with only Nannochloropsis sp. enriched rotifers was significantly higher than those fed S.presso enriched rotifers. Fatty acid composition of rotifers was significantly affected by the enrichment treatments (P 〈 0.05). Arachidonic acid (ARA, 20:4n-6) and Eicosapentaenoic acid (EPA, 20:5n-3) were highest in rotifers enriched with Nannochloropsis. Docosahexaenoic acid (DHA, 22:6n-3) level was highest in Sp1 treatment. Total saturated fatty acids in rotifers was not significantly affected (P 〉 0.05), but total polyunsaturated fatty acid content was significantly affected (P 〈 0.05) by enrichment. DHA/EPA ratio in rotifers was significantly affected by the enrichment (P 〈 0.05). Highest total polyunsaturated fatty acids were observed in rotifers enriched with Sp1. On 12 DPH, fatty acid composition in the larvae was significantly affected by the nutrient enhancement (P 〈 0.05). ARA and EPA levels were highest in the larvae fed with Nannochloropsis sp. enriched rotifers; highest DHA/EPA ratio in fish larvae was found in Sp1 treatment. Total polyunsaturated fatty acid in the larvae enriched with Sp1/2 and Sp1 was similar to the amount observed in fertilized eggs of yellowtail amberjack (P 〉 0.05). Results indicate that enriched live feed can significantly affect rearing performance of yellowtail amberjack larvae; S.presso full dose enrichment is suitable for their initial rearing stages.
    Type of Medium: Online Resource
    ISSN: 0792-156X , 0792-156X
    URL: Article
    DOI: 10.46989/001c.20943
    Language: English
    Publisher: SAABRON PRESS
    Publication Date: 2018
    detail.hit.zdb_id: 291787-7
    detail.hit.zdb_id: 2542938-3
    SSG: 21,3
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    Online Resource
  • 2
    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
    SSG: 21,3
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  • 3
    Online Resource
    Online Resource
    Effect of Acute Ammonia Stress on Antioxidant Enzymes and Digestive Enzymes in Barramundi Lates calcarifer Larvae
    SAABRON PRESS ; 2018
    In:  Israeli Journal of Aquaculture - Bamidgeh Vol. 70 ( 2018-1-1)
    Details
    In: Israeli Journal of Aquaculture - Bamidgeh, SAABRON PRESS, Vol. 70 ( 2018-1-1)
    Abstract: The acute toxicity of ammonia to barramundi Lates calcarifer larvae (15 days post-hatching, DPH) was studied with a semi-static bioassay method to understand the physical response of fish larvae to ammonia stress. In this study, 15 and 20 mg/L ammonia were tested, and 0 mg/L ammonia (control) was used as control. The activity of antioxidant enzymes including superoxide dismutase (SOD), peroxidase (POD), catalase (CAT), acid phosphatase (ACP), glutathione peroxidase (GSH-Px), and digestive enzymes lipase (LPS), amylase (AMS), trypsin (TRYP) were used as biochemical indicators. With the increase of residue time, the SOD activity in barramundi was elevated at 15 mg/L ammonia and decreased at 20 mg/L ammonia. CAT activity was lower at 20 mg/L ammonia. GSH- PX activity was elevated at the low ammonia concentration and decreased at the high ammonia concentration. ACP activity was elevated after exposure to ammonia. LPS and AMS activities in the control were significantly higher than those of the other groups (P 〈 0.05). TRYP activity was elevated after exposure to ammonia. The results indicate that acute ammonia stress significantly affects antioxidant capacity and digestive capacity, and barramundi exhibited a certain tolerance of ammonia in a short time ( 〈 6h). Results from the present study will improve our understanding of the physical response of fish to ammonia and may guide hatchery practice for Lates calcarifer.
    Type of Medium: Online Resource
    ISSN: 0792-156X , 0792-156X
    URL: Article
    DOI: 10.46989/001c.20930
    Language: English
    Publisher: SAABRON PRESS
    Publication Date: 2018
    detail.hit.zdb_id: 291787-7
    detail.hit.zdb_id: 2542938-3
    SSG: 21,3
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    Online Resource
  • 4
    Online Resource
    Online Resource
    Advanced Functional Materials Constructed from Pillar[n]arenes
    Wiley ; 2018
    In:  Israel Journal of Chemistry Vol. 58, No. 11 ( 2018-11), p. 1219-1229
    Details
    In: Israel Journal of Chemistry, Wiley, Vol. 58, No. 11 ( 2018-11), p. 1219-1229
    Abstract: Pillar[n]arenes are new generation of supramolecular macrocyclic host, which exhibit excellent host−guest recognition properties. In the last decade, functional materials constructed from pillar[n] arenes have been attracted more and more attention and displayed outstanding characteristics, such as stimuli‐responsiveness, self‐healing and adaptability. In this mini‐review, we provide a survey of the pillar[n]arene‐based literatures covering light‐harvesting systems, functional hydrogels, and solid materials. It is anticipated that more and more pillar[n] arenes‐based advanced materials with multi‐functional properties will appear in the near future.
    Type of Medium: Online Resource
    ISSN: 0021-2148 , 1869-5868
    URL: Issue
    URL: Article
    DOI: 10.1002/ijch.v58.11
    DOI: 10.1002/ijch.201800026
    Language: English
    Publisher: Wiley
    Publication Date: 2018
    detail.hit.zdb_id: 2066481-3
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  • 5
    Online Resource
    Online Resource
    Trigonal Prismatic Cu 6 L 3 Coordination Cage: Encapsulation of Aromatic Molecules and Tuned Photoluminescence
    Wiley ; 2019
    In:  Israel Journal of Chemistry Vol. 59, No. 3-4 ( 2019-03), p. 317-322
    Details
    In: Israel Journal of Chemistry, Wiley, Vol. 59, No. 3-4 ( 2019-03), p. 317-322
    Abstract: A trigonal prismatic Cu 6 L 3 coordination cage has been assembled from Cu(I) and semi‐rigid bipyrazolyl ligand. The X‐ray crystallography demonstrates that the cage has a cavity and can encapsulate the toluene as a guest, exhibiting thermochromism phenomenon. Empty cage can be obtained by expulsion of the guest through single crystal to single crystal transformation. After removed the guest, the empty cage shows a blue‐shifted emission (580 nm), in comparison to its parent cage (615 nm). The empty cage could further serve as a host to encapsulate other aromatic molecules (e. g. mesitylene), which shows new emission band. The trigonal prismatic Cu 6 L 3 coordination cage provides a platform to make advanced luminescent materials.
    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.201900006
    Language: English
    Publisher: Wiley
    Publication Date: 2019
    detail.hit.zdb_id: 2066481-3
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  • 6
    Online Resource
    Online Resource
    Physical Responses of Lates calcarifer to Acute Nitrite Stress
    SAABRON PRESS ; 2019
    In:  Israeli Journal of Aquaculture - Bamidgeh Vol. 71 ( 2019-1-1)
    Details
    In: Israeli Journal of Aquaculture - Bamidgeh, SAABRON PRESS, Vol. 71 ( 2019-1-1)
    Abstract: Abstract_The acute toxicity of nitrite (133.33, 266.66, 399.99mg/L) to 15 days posthatched Lates calcarifer (barramundi) was studied by semi-static bioassay method; 0 mg/L nitrite was used as control. Samples were obtained at 0, 6, 12, 24, 36, 48, 72 and 96 h respectively to measure and analyze the activity of antioxidant, digestive enzymes, and concentration of serum cortisol. Nitrite concentration and exposure time significantly affected the antioxidant and digestive enzymes activities. By the end of the experiment, superoxide dismutase (SOD) and glutathione peroxidase (GSH-Px) activities in the experimental group were significantly higher than in the control group, while peroxidase (POD) and catalase activities were significantly lower than in the control group except for in higher concentrations. Differing from POD and catalase, the acid phosphatase (ACP) activity of sub-concentration treatment was significantly higher than in the control group. Amylase activity in the nitrite stressed group was significantly lower than the control group, while the results of protease and lipase activity were reversed. Cortisol activity was delayed because of acute nitrite stress in the barramundi. Lates calcarifer showed certain short-term tolerance to nitrite stress. Results from the present study indicate that nitrite stress stimulates the responses of antioxidant and digestive enzyme activity and cortisol in fish, and these parameters can be used as physical indicators of stress.
    Type of Medium: Online Resource
    ISSN: 0792-156X , 0792-156X
    URL: Article
    DOI: 10.46989/001c.20993
    Language: English
    Publisher: SAABRON PRESS
    Publication Date: 2019
    detail.hit.zdb_id: 291787-7
    detail.hit.zdb_id: 2542938-3
    SSG: 21,3
    Location Call Number Limitation Availability
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  • 7
    Online Resource
    Online Resource
    Molecular Cloning and Expression of Major Histocompatibility Complex Class Iα Gene of Swamp Eel (Monopterus albus)
    SAABRON PRESS ; 2018
    In:  Israeli Journal of Aquaculture - Bamidgeh Vol. 70 ( 2018-1-1)
    Details
    In: Israeli Journal of Aquaculture - Bamidgeh, SAABRON PRESS, Vol. 70 ( 2018-1-1)
    Abstract: Major histocompatibility complex (MHC) plays an important role in the immune response of vertebrates. In this study, we isolated MHC class Iα gene from swamp eel (Monopterus albus) by rapid amplification of cDNA ends polymerase chain reaction (RACE-PCR). In order to study the function of MHC Iα in swamp eel, tissue distribution and immune response of the MHC Iα after bacterial challenge were analyzed. All the characteristic features of MHC Iα chain structure were identified by the deduced amino acid sequence, including the leader peptide, α1, α2, and α3 domains, connecting peptide, transmembrane and cytoplasmic regions, conserved cysteines, and N-glycosylation site. The deduced amino acid sequence of the MHC Iα shares 27.3% to 69.6% similarity with those of other vertebrates. Quantitative real-time PCR (qRT-PCR) demonstrated that MHC Iα gene was ubiquitously expressed in ten tissues, comparatively higher in immune related tissues, including the liver and intestine. Challenge of M. albus with the extracellular pathogen, Aeromonas hydrophila, resulted in a significant increase in the expression of MHC Iα within 72 h after infection and these high levels were maintained for 72 h in kidneys, spleen, and skin, whereas in the intestine and liver, it was found first in the form of up-regulated and then down-regulated gene. These results demonstrated that MHC Iα gene played an important role in response to bacterial infection in M.albus.
    Type of Medium: Online Resource
    ISSN: 0792-156X , 0792-156X
    URL: Article
    DOI: 10.46989/001c.20949
    Language: English
    Publisher: SAABRON PRESS
    Publication Date: 2018
    detail.hit.zdb_id: 291787-7
    detail.hit.zdb_id: 2542938-3
    SSG: 21,3
    Location Call Number Limitation Availability
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  • 8
    Online Resource
    Online Resource
    Molecular Cloning of Twist Gene and its Expression in Golden Pompano Trachinotus ovatus (Linnaeus 1758) Larvae at Different Water Temperatures
    SAABRON PRESS ; 2018
    In:  Israeli Journal of Aquaculture - Bamidgeh Vol. 70 ( 2018-1-1)
    Details
    In: Israeli Journal of Aquaculture - Bamidgeh, SAABRON PRESS, Vol. 70 ( 2018-1-1)
    Abstract: The twist gene in golden pompano Trachinotus ovatus larvae was cloned and analyzed in this study. in the first 18 days the expression of twist during larval fish ontogeny was explored, then on 18 day post hatch (DPH) the expression of twist in fish tissues was evaluated. Subsequently, the response of twist to water temperatures of 23, 26, and 29oC was compared on 12 DPH and 18 DPH. The cDNA sequence length of the twist gene in golden pompano is 880 bp with an open reading frame of 507 bp. The twist gene encodes 168 amino acids and has a calculated molecular weight of 18.93 kDa and a theoretical isoelectric point of 9.14. After hatching, the expression of twist increased with fish age, and peaked at 3 and 4 DPH. The highest expression of twist in fish tissue occurred in the spleen and stomach, followed by the brain and kidney on 18 DPH. On 12 DPH, the highest expression of twist was observed in fish reared at 26oC, and lowest expression was observed in fish reared at 29oC. On 18 DPH, the expression of twist was not significantly affected by the rearing temperatures. This study identified the gene expression of twist at the early developmental stage of golden pompano; the time dependent expression of twist in fish larvae may improve knowledge of bone ontogeny and formation in fish larvae.
    Type of Medium: Online Resource
    ISSN: 0792-156X , 0792-156X
    URL: Article
    DOI: 10.46989/001c.20948
    Language: English
    Publisher: SAABRON PRESS
    Publication Date: 2018
    detail.hit.zdb_id: 291787-7
    detail.hit.zdb_id: 2542938-3
    SSG: 21,3
    Location Call Number Limitation Availability
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    Online Resource
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