ALBERT

All Library Books, journals and Electronic Records Telegrafenberg

X
feed icon rss

Your email was sent successfully. Check your inbox.

An error occurred while sending the email. Please try again.

Proceed reservation?

Export
  • 1
    facet.materialart.
    Unknown
    The effects of glucan on hematological parameters, immune response and intestinal microbiota of Rutilus frisii kutum fry (2017)
    Details
    Publication Date: 2021-05-19
    Description: The purpose of this study was to determine the effect of dietary glucan on some haematological parameters, immune response and intestinal microbiota of Rutilus frisii kutum. In the present study, various levels of ingredient so called Hoplit (0, 0.5, 1.0, 1.5, and 2.0%) containing glucan was added to a basal formulated diet. Twenty and five kutum fry with a mean (±SD) weight of 1.15±0.06g were stocked in each experimental tank (100 l capacity) filled with 80 liter of water. Fish were fed on experimental diet for 56 days and biometry was performed every 15 days. At the end of the trial blood samples were collected for measurement of haematological parameters including: Red and white blood cells count, differential count of white blood cells, hematocrit and hemoglobin, and innate immune factors (Immunoglobulin and Lysozyme). Fries in 1.5% treatment had highest serum immunoglobins (Ig) and eosinophil, although when compared with control but with no significant differences. Highest MCHC, hematocrit and hemoglobin were observed in the 0.5 and 1% treatments and the highest MCV and red blood cell count were in 0.5 percent treatment. The highest white blood cells count and neutrophils was observed in 2% treatment. The highest and lowest levels of lysozyme activity were observed in 1% and control treatments, respectively. Evaluation of the total bacteria and LAB counts revealed significant increase in 0.5% treatment. According to these results administration of dietary glucan can be considered for stimulation of innate immune response of white fish fry.
    Description: Published
    Keywords: Rutilus frisii kutum ; Hematological ; Parameters ; Immune ; Responses ; Blood ; Fish
    Repository Name: AquaDocs
    Type: Journal Contribution , Refereed
    Format: pp.73-84
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    PAPER (OA)
  • 2
    facet.materialart.
    Unknown
    Summer and winter feeding behavior in Acipenser persicus and Acipenser stellatus in the south Caspian Sea (2018)
    Details
    Publication Date: 2021-05-19
    Description: Feeding behavior in Acipenser persicus and Acipenser stellatus in summer and winter was studied from 2004 to 2006 simultaneously with the marine survey for sturgeon stock assessment. Bottom trawls (9m) on board the research vessel Sisara 2 (50 hsp) were used to collect specimens at depth below 10m, while specimens at depths more than 10m were collected using bottom trawls (24.7m) on board the Guilan Research Vessel (1000 hsp). Examination of stomach contents of 135 A. persicus and 80 A. stellatus specimens revealed that the food spectrum was composed of bony fishes (Neogobius sp., Atherina sp., Clupeonella cultriventris), invertebrates belonging to the family Ampharitidae (polychaeta worms including Hypanai sp. and Nereis diversicolor), various crustaceans (Gammarus sp. and Paramysis sp.) and the bivalved mollusc, (Abra ovate). Significant differences were detected in the frequency of prey items in the different seasons studied. Also significant differences (P0.05).
    Description: Published
    Keywords: Food organisms ; Stomach content ; Anadromous species ; Bottom trawls ; Stock assessment ; Trawl nets ; Neogobius ; Polychaeta ; Nereis diversicolor ; Acipenser stellatus ; Paramysis ; Acipenser ; Acipenser persicus ; Abra ; Atherina ; Brackish ; Feeding behaviour ; Marine molluscs ; Taxonomy ; Marine crustaceans ; Winter ; New species
    Repository Name: AquaDocs
    Type: Journal Contribution , Refereed
    Format: pp.13-26
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    PAPER (OA)
  • 3
    facet.materialart.
    Unknown
    Effects of enriched Freshwater Rotifer with vitamin C, On Growth indices of Persian sturgeon (Acipenser persicus) larvae rearing. (2017)
    Details
    Publication Date: 2021-05-19
    Description: Acipenser persicus is the most important sturgeon species in the south Caspian Sea, showing high mortality during larval culture. The aim of this study was to use the freshwater rotifer, Brachionus calyciflorus to feed A. persicus larvae to improve survival rates and enhance resistance. Three experimental treatments were used in this study; Treatment 1, similar to the feeding protocol of the hatchery was initially fed decapsulated cysts of artemia and then fed daphnia; Treatment 2, was fed a mixed diet of decapsulated artemia cysts, daphnia and freshwater rotifers and Treatment 3, was fed freshwater rotifers enriched with vitamin C (ascorbic acid 6- palmitate). A total of 45 larvae were stocked in each experimental tank (100 l capacity) filled with 30 l of water. Three replicates were used for each experimental group. Larvae were fed at the rate of 30% of body weight per day for 8 days. Mean dissolved oxygen, pH and water temperature throughout the experimental period were 9.58±0.2 mg/l, 8.5±0.1 and 22.5±0.5 ºC, respectively. Results showed significant differences in specific growth rate (SGR), percentage weight gain (WG), feed conversion ratio (FCR), and condition factor (CF) of experiment treatment 1 and treatment 3 and survival ratio were significantly different among treatment 3 and other treatments .This study demonstrated that Brachionus calyciflorus is a suitable live food for larval feeding.
    Description: Published
    Keywords: Acipenser persicus ; Persian sturgeon ; Brachionus calyciflorus ; Enrichement ; Vitamin C ; Freshwater ; Growth ; Larvae ; Fed
    Repository Name: AquaDocs
    Type: Journal Contribution , Refereed
    Format: pp.139-144
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    PAPER (OA)
  • 4
    facet.materialart.
    Unknown
    Effects of enriched freshwater Rotifer with vitamin C, on growth indices of Persian sturgeon (Acipenser persicus) larval rearing (2021)
    In:  http://aquaticcommons.org/id/eprint/22046 | 18721 | 2018-01-25 08:35:45 | 22046 | Iranian Fisheries Science Research Institute
    Details
    Publication Date: 2021-07-06
    Description: Acipenser persicus is the most important sturgeon species in the south Caspian Sea, showing high mortality during larval culture. The aim of this study was to use the freshwater rotifer, Brachionus calyciflorus to feed A. persicus larvae to improve survival rates and enhance resistance. Three experimental treatments were used in this study; Treatment 1, similar to the feeding protocol of the hatchery was initially fed decapsulated cysts of artemia and then fed daphnia; Treatment 2, was fed a mixed diet of decapsulated artemia cysts, daphnia and freshwater rotifers and Treatment 3, was fed freshwater rotifers enriched with vitamin C (ascorbic acid 6- palmitate). A total of 45 larvae were stocked in each experimental tank (100 l capacity) filled with 30 l of water. Three replicates were used for each experimental group. Larvae were fed at the rate of 30% of body weight per day for 8 days. Mean dissolved oxygen, pH and water temperature throughout the experimental period were 9.58±0.2 mg/l, 8.5±0.1 and 22.5±0.5 ºC, respectively. Results showed significant differences in specific growth rate (SGR), percentage weight gain (WG), feed conversion ratio (FCR), and condition factor (CF) of experiment treatment 1 and treatment 3 and survival ratio were significantly different among treatment 3 and other treatments .This study demonstrated that Brachionus calyciflorus is a suitable live food for larval feeding.
    Keywords: Aquaculture ; Biology ; Acipenser persicus ; Brachionus calyciflorus ; Vitamin C ; Enrichement ; Persian sturgeon ; Growth ; Freshwater ; larval ; survival rates ; feeding ; fed
    Repository Name: AquaDocs
    Type: article , TRUE
    Format: application/pdf
    Format: application/pdf
    Format: 139-144
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    PAPER (OA)
  • 5
    facet.materialart.
    Unknown
    The effects of glucan on hematological parameters, immune response and intestinal microbiota of Rutilus frisii kutum fry (2021)
    In:  http://aquaticcommons.org/id/eprint/21911 | 18721 | 2018-01-16 10:51:28 | 21911 | Iranian Fisheries Science Research Institute
    Details
    Publication Date: 2021-07-04
    Description: The purpose of this study was to determine the effect of dietary glucan on some haematological parameters, immune response and intestinal microbiota of Rutilus frisii kutum. In the present study, various levels of ingredient so called Hoplit (0, 0.5, 1.0, 1.5, and 2.0%) containing glucan was added to a basal formulated diet. Twenty and five kutum fry with a mean (±SD) weight of 1.15±0.06g were stocked in each experimental tank (100 l capacity) filled with 80 liter of water. Fish were fed on experimental diet for 56 days and biometry was performed every 15 days. At the end of the trial blood samples were collected for measurement of haematological parameters including: Red and white blood cells count, differential count of white blood cells, hematocrit and hemoglobin, and innate immune factors (Immunoglobulin and Lysozyme). Fries in 1.5% treatment had highest serum immunoglobins (Ig) and eosinophil, although when compared with control but with no significant differences. Highest MCHC, hematocrit and hemoglobin were observed in the 0.5 and 1% treatments and the highest MCV and red blood cell count were in 0.5 percent treatment. The highest white blood cells count and neutrophils was observed in 2% treatment. The highest and lowest levels of lysozyme activity were observed in 1% and control treatments, respectively. Evaluation of the total bacteria and LAB counts revealed significant increase in 0.5% treatment. According to these results administration of dietary glucan can be considered for stimulation of innate immune response of white fish fry.
    Keywords: Aquaculture ; Biology ; Heamatological parameters ; Fish physiology ; Nutrition ; Iran ; Rutilus frisii kutum ; immune
    Repository Name: AquaDocs
    Type: article , TRUE
    Format: application/pdf
    Format: application/pdf
    Format: 73-84
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    PAPER (OA)
  • 6
    facet.materialart.
    Unknown
    Summer and winter feeding behavior in Acipenser persicus and Acipenser stellatus in the south Caspian Sea (2021)
    In:  http://aquaticcommons.org/id/eprint/23780 | 18721 | 2018-07-27 13:40:02 | 23780 | Iranian Fisheries Science Research Institute
    Details
    Publication Date: 2021-07-15
    Description: Feeding behavior in Acipenser persicus and Acipenser stellatus in summer and winter was studied from 2004 to 2006 simultaneously with the marine survey for sturgeon stock assessment. Bottom trawls (9m) on board the research vessel Sisara 2 (50 hsp) were used to collect specimens at depth below 10m, while specimens at depths more than 10m were collected using bottom trawls (24.7m) on board the Guilan Research Vessel (1000 hsp). Examination of stomach contents of 135 A. persicus and 80 A. stellatus specimens revealed that the food spectrum was composed of bony fishes (Neogobius sp., Atherina sp., Clupeonella cultriventris), invertebrates belonging to the family Ampharitidae (polychaeta worms including Hypanai sp. and Nereis diversicolor), various crustaceans (Gammarus sp. and Paramysis sp.) and the bivalved mollusc, (Abra ovate). Significant differences were detected in the frequency of prey items in the different seasons studied. Also significant differences (P〈0.05).
    Keywords: Biology ; Acipenser persicus ; Acipenser stellatus ; Feeding behaviour ; Caspian Sea ; Caspian Sea Eurasia ; Iran
    Repository Name: AquaDocs
    Type: article , TRUE
    Format: application/pdf
    Format: application/pdf
    Format: 13-26
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    PAPER (OA)
Close ⊗
This website uses cookies and the analysis tool Matomo. More information can be found here...