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  1. Article: Effects of Different Phospholipid Sources on Growth and Gill Health in Atlantic Salmon in Freshwater Pre-Transfer Phase.

    Kvingedal, Renate / Vigen, Jannicke / Nanton, Dominic / Ruohonen, Kari / Kaur, Kiranpreet

    Animals : an open access journal from MDPI

    2023  Volume 13, Issue 5

    Abstract: Growth and histological parameters were evaluated in Atlantic salmon (74 g) that were fed alternative phospholipid (PL) sources in freshwater (FW) up to 158 g and were transferred to a common seawater (SW) tank with crowding stress after being fed the ... ...

    Abstract Growth and histological parameters were evaluated in Atlantic salmon (74 g) that were fed alternative phospholipid (PL) sources in freshwater (FW) up to 158 g and were transferred to a common seawater (SW) tank with crowding stress after being fed the same commercial diet up to 787 g. There were six test diets in the FW phase: three diets with different doses of krill meal (4%, 8%, and 12%), a diet with soy lecithin, a diet with marine PL (from fishmeal), and a control diet. The fish were fed a common commercial feed in the SW phase. The 12% KM diet was compared against the 2.7% fluid soy lecithin and 4.2% marine PL diets, which were formulated to provide the same level of added 1.3% PL in the diet similar to base diets with 10% fishmeal in the FW period. A trend for increased weight gain with high variability was associated with an increased KM dose in the FW period but not during the whole trial, whereas the 2.7% soy lecithin diet tended to decrease growth during the whole trial. A trend for decreased hepatosomatic index (HSI) was associated with an increased KM dose during transfer but not during the whole trial. The soy lecithin and marine PL diets showed similar HSI in relation to the control diet during the whole trial. No major differences were observed in liver histology between the control, 12% KM, soy lecithin, and marine PL diets during transfer. However, a minor positive trend in gill health (lamella inflammation and hyperplasia histology scores) was associated with the 12% KM and control diets versus the soy lecithin and marine PL diets during transfer.
    Language English
    Publishing date 2023-02-24
    Publishing country Switzerland
    Document type Journal Article
    ZDB-ID 2606558-7
    ISSN 2076-2615
    ISSN 2076-2615
    DOI 10.3390/ani13050835
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article ; Online: Effects of Different Phospholipid Sources on Growth and Gill Health in Atlantic Salmon in Freshwater Pre-Transfer Phase

    Kvingedal, Renate / Vigen, Jannicke / Nanton, Dominic / Ruohonen, Kari / Kaur, Kiranpreet

    Animals. 2023 Feb. 24, v. 13, no. 5

    2023  

    Abstract: Growth and histological parameters were evaluated in Atlantic salmon (74 g) that were fed alternative phospholipid (PL) sources in freshwater (FW) up to 158 g and were transferred to a common seawater (SW) tank with crowding stress after being fed the ... ...

    Abstract Growth and histological parameters were evaluated in Atlantic salmon (74 g) that were fed alternative phospholipid (PL) sources in freshwater (FW) up to 158 g and were transferred to a common seawater (SW) tank with crowding stress after being fed the same commercial diet up to 787 g. There were six test diets in the FW phase: three diets with different doses of krill meal (4%, 8%, and 12%), a diet with soy lecithin, a diet with marine PL (from fishmeal), and a control diet. The fish were fed a common commercial feed in the SW phase. The 12% KM diet was compared against the 2.7% fluid soy lecithin and 4.2% marine PL diets, which were formulated to provide the same level of added 1.3% PL in the diet similar to base diets with 10% fishmeal in the FW period. A trend for increased weight gain with high variability was associated with an increased KM dose in the FW period but not during the whole trial, whereas the 2.7% soy lecithin diet tended to decrease growth during the whole trial. A trend for decreased hepatosomatic index (HSI) was associated with an increased KM dose during transfer but not during the whole trial. The soy lecithin and marine PL diets showed similar HSI in relation to the control diet during the whole trial. No major differences were observed in liver histology between the control, 12% KM, soy lecithin, and marine PL diets during transfer. However, a minor positive trend in gill health (lamella inflammation and hyperplasia histology scores) was associated with the 12% KM and control diets versus the soy lecithin and marine PL diets during transfer.
    Keywords Salmo salar ; diet ; fish ; fish meal ; freshwater ; hepatosomatic index ; histology ; hyperplasia ; inflammation ; krill meal ; lecithins ; liver ; seawater ; weight gain
    Language English
    Dates of publication 2023-0224
    Publishing place Multidisciplinary Digital Publishing Institute
    Document type Article ; Online
    ZDB-ID 2606558-7
    ISSN 2076-2615
    ISSN 2076-2615
    DOI 10.3390/ani13050835
    Database NAL-Catalogue (AGRICOLA)

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  3. Article: A new parasite that infects eggs of the mud crab, Scylla serrata, in Australia.

    Kvingedal, Renate / Owens, Leigh / Jerry, Dean R

    Journal of invertebrate pathology

    2006  Volume 93, Issue 1, Page(s) 54–59

    Abstract: The mud crab, Scylla serrata, is currently being evaluated for its feasibility for mass aquaculture in Australia. As part of the evaluation process, pathogens that can affect this species need to be identified. This research note describes a possible new ...

    Abstract The mud crab, Scylla serrata, is currently being evaluated for its feasibility for mass aquaculture in Australia. As part of the evaluation process, pathogens that can affect this species need to be identified. This research note describes a possible new parasite that infects the eggs of S. serrata. The parasite was discovered in two separate cases (three months apart) in a broodstock research program and appears to cause 100% egg mortality. The parasite consists of a cluster of cells with rhizoids that appear to function as an anchorage and a feeding organ. The individual cells range from 3 to 6 microm with a single nucleus. The parasite could not be classified to a phylum by morphology alone. However, BLAST analysis of the DNA sequence from a PCR amplicon generated using universal 18S ribosomal RNA gene primers indicated similarity to pathogenic thraustochytrids, Dermocystidium sp. and Rhinosporidium seeberi. All except R. seeberi are protistan parasites of fish and crustaceans. A neighbour-joining phylogenetic tree confirmed the homology with the thraustochytrids; however, further molecular techniques need to be exploited for absolute classification of this new parasite.
    MeSH term(s) Animals ; Brachyura/parasitology ; DNA, Fungal/analysis ; Female ; Fungi, Unclassified/genetics ; Fungi, Unclassified/growth & development ; Fungi, Unclassified/pathogenicity ; Ovum/parasitology ; Phylogeny ; Polymerase Chain Reaction ; RNA, Ribosomal, 18S/isolation & purification
    Chemical Substances DNA, Fungal ; RNA, Ribosomal, 18S
    Language English
    Publishing date 2006-09
    Publishing country United States
    Document type Journal Article
    ZDB-ID 390885-9
    ISSN 1096-0805 ; 0022-2011
    ISSN (online) 1096-0805
    ISSN 0022-2011
    DOI 10.1016/j.jip.2006.06.002
    Database MEDical Literature Analysis and Retrieval System OnLINE

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    In stock of ZB MED Cologne/Königswinter

    Zs.B 958: Show issues Location:
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    bis Jg. 2021: Bestellungen von Artikeln über das Online-Bestellformular
    ab Jg. 2022: Lesesaal (EG)

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  4. Article: Donor-oyster derived heritability estimates and the effect of genotype×environment interaction on the production of pearl quality traits in the silver-lip pearl oyster, Pinctada maxima

    Jerry, Dean R / Kvingedal, Renate / Lind, Curtis E / Evans, Brad S / Taylor, Joseph J.U / Safari, Alex E

    Aquaculture. 2012 Mar. 29, v. 338-341

    2012  

    Abstract: The silver-lip pearl oyster, Pinctada maxima, produces the largest and most valuable pearls in the world. Despite the importance of this species very little is known about genetic parameters of commercially important pearl traits. As an initial step ... ...

    Abstract The silver-lip pearl oyster, Pinctada maxima, produces the largest and most valuable pearls in the world. Despite the importance of this species very little is known about genetic parameters of commercially important pearl traits. As an initial step towards developing a selective breeding program, site selection effects, donor oyster derived genetic parameters and genotype by environment (G×E)interactions were estimated for pearl quality traits of P. maxima, originating from three populations (Aru, Bali, West Papua), reared at two commercial grow-out locations in Indonesia (Bali and Lombok). Microsatellite-based DNA parentage analyses were used to assign oysters to families and population of origin. Six pearl traits that are together the major determinants of pearl value (pearl weight (g), size (mm), shape, colour, complexion and lustre) were recorded at harvest. Pearls produced at the Lombok site were bigger and more valuable compared to pearls produced at the Bali site (P<0.05). G×E interactions were present for size (rg=−0.22), colour (rg=0.28), weight (rg=0.38), shape (rg=0.56) and lustre (rg=0.59) due to re-ranking of relative family performances at the two sites, although there were large standard errors associated with these estimates. Complexion was the only trait that showed little evidence for re-ranking (rg=0.85). Donor related-heritability estimates for size (h²=0.13), lustre (h²=0.14), weight (h²=0.15), colour (h²=0.15) and shape (h²=0.06) were low, while for complexion estimates were moderate (h²=0.25). A positive and high genetic correlation was found between pearl size and weight (rg=0.99), shape and complexion (rg=0.65) and shape and colour (rg=0.62); however, interestingly pearl weight was negatively genetically correlated with shape (rg=−0.46), complexion (rg=−0.11), colour (rg=−0.03) and lustre (rg=−0.15). Given the complex relationship amongst pearl quality traits and the likelihood for G×E interaction effects care should be executed when designing breeding objectives for the genetic improvement of these traits in P. maxima.
    Keywords DNA ; Pinctada maxima ; breeding ; color ; genetic correlation ; genetic traits ; genotype-environment interaction ; heritability ; oysters ; parentage ; pearls ; rearing ; Indonesia
    Language English
    Dates of publication 2012-0329
    Size p. 66-71.
    Publishing place Elsevier B.V.
    Document type Article
    ZDB-ID 185380-6
    ISSN 0044-8486 ; 0044-8516
    ISSN 0044-8486 ; 0044-8516
    DOI 10.1016/j.aquaculture.2012.02.001
    Database NAL-Catalogue (AGRICOLA)

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    In stock of ZB MED Bonn / Germany

    Z 3275: Show issues

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  5. Article: Family by environment interactions in shell size of 43-day old silver-lip pearl oyster (Pinctada maxima), five families reared under different nursery conditions

    Kvingedal, Renate / Evans, Brad S / Taylor, Joseph J.U / Knauer, Jens / Jerry, Dean R

    Aquaculture. 2008 July 2, v. 279, no. 1-4

    2008  

    Abstract: To understand the influence the environment and associated genotype by environment interactions will exert on future silver-lip pearl oyster (Pinctada maxima) selective breeding programs, this study assessed the relative performance in four shell growth ... ...

    Abstract To understand the influence the environment and associated genotype by environment interactions will exert on future silver-lip pearl oyster (Pinctada maxima) selective breeding programs, this study assessed the relative performance in four shell growth traits of spat from five full-sib families, when spat were communally reared at different salinities (29, 34 and 40 ppt), food availability (high, medium and low), food quality (high, medium and low), and in a hatchery vs. ocean environment for 43 days. Rearing environment was found to influence growth expression, with significant differences evident when oysters were grown at different salinities in the ocean instead of hatchery, or when fed algae of differing nutritional quality. As indicated by MANOVA, family comparative growth performances were also altered when the environment changed, with significant environment by family interactions apparent in the food quality, food availability and hatchery vs. ocean rearing treatments. Changes in salinity, however, did not affect relevant family performances. These results indicate that growth and relative family performance in P. maxima may change dependent on local environmental conditions and that genotype by environment effects may need to be considered in breeding programs for this species.
    Keywords Bivalvia ; oysters ; oyster culture ; genotype-environment interaction ; feeds ; growth traits ; Pteriidae ; Pinctada maxima
    Language English
    Dates of publication 2008-0702
    Size p. 23-28.
    Publishing place Amsterdam: Elsevier Science
    Document type Article
    ZDB-ID 185380-6
    ISSN 0044-8486 ; 0044-8516
    ISSN 0044-8486 ; 0044-8516
    DOI 10.1016/j.aquaculture.2008.04.022
    Database NAL-Catalogue (AGRICOLA)

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    In stock of ZB MED Bonn / Germany

    Z 3275: Show issues

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  6. Article: Population and family growth response to different rearing location, heritability estimates and genotype×environment interaction in the silver-lip pearl oyster (Pinctada maxima)

    Kvingedal, Renate / Evans, Brad S / Lind, Curtis E / Taylor, Joseph J.U / Dupont-Nivet, Mathilde / Jerry, Dean R

    Aquaculture. 2010 June 15, v. 304, no. 1-4

    2010  

    Abstract: Genetic parameters and genotype by environment interactions were estimated from the growth responses of silver-lip pearl oyster (Pinctada maxima) families originating from three populations (Aru, Bali, West Papua) reared at two Indonesian commercial ... ...

    Abstract Genetic parameters and genotype by environment interactions were estimated from the growth responses of silver-lip pearl oyster (Pinctada maxima) families originating from three populations (Aru, Bali, West Papua) reared at two Indonesian commercial sites (Bali and Lombok). Microsatellite-based DNA parentage analyses were used to assign oysters to their family and population of origin and four shell growth traits (anterior-posterior measurement (APM), dorsal-ventral measurement (DVM), shell width (SW) and wet weight (WW)) recorded at 14 and 18months of age. Significant size differences were observed in all shell growth traits between oyster populations, and between oysters cultured at the different locations. Oysters from Bali and West Papua grew faster than those sourced from Aru at both culture sites, whilst the Lombok site produced the fastest growing oysters overall. Significant size differences were also present in shell traits among families, indicating a large amount of genetic variability present for potential breeding programs. Although there were significant familial size differences for shell traits, genetic correlation analyses showed little evidence for re-ranking of family performance among the two culture sites (r g =0.89-0.99), suggesting low genotype by environment deviations among sites. Heritability of the shell traits DVM, APM and WW was moderate (0.15±0.003 (DVM), 0.23±0.030 (APM)) and as a consequence should respond to targeted selection.
    Keywords oysters ; oyster culture ; population genetics ; Pinctada ; population size ; heritability ; genotype-environment interaction ; microsatellite repeats ; growth traits ; genetic variation ; Pinctada maxima ; Indonesia
    Language English
    Dates of publication 2010-0615
    Size p. 1-6.
    Publishing place Amsterdam: Elsevier Science
    Document type Article
    ZDB-ID 185380-6
    ISSN 0044-8486 ; 0044-8516
    ISSN 0044-8486 ; 0044-8516
    DOI 10.1016/j.aquaculture.2010.02.035
    Database NAL-Catalogue (AGRICOLA)

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    In stock of ZB MED Bonn / Germany

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