Dataset Information

Genome Sequence of Vibrio nigripulchritudo Strain TUMSAT-TG-2018, Isolated from Diseased Pacific White Shrimp, Litopenaeus vannamei.

ABSTRACT: The Gram-negative bacterium Vibrio nigripulchritudo is an important shrimp pathogen. Here, we present the genome sequence of Vibrio nigripulchritudo TUMSAT-TG-2018, which was isolated from a diseased Pacific white shrimp (Litopenaeus vannamei). The assembly totaled 6.8 Mbp, consisting of two chromosomes and four plasmids.

SUBMITTER: Kawato S

PROVIDER: S-EPMC7714859 | biostudies-literature | 2020 Dec

REPOSITORIES: biostudies-literature

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Genome Sequence of Vibrio nigripulchritudo Strain TUMSAT-TG-2018, Isolated from Diseased Pacific White Shrimp, Litopenaeus vannamei.

Kawato Satoshi S Lu Jian J Nozaki Reiko R Kondo Hidehiro H Hirono Ikuo I

Microbiology resource announcements 20201203 49

The Gram-negative bacterium Vibrio nigripulchritudo is an important shrimp pathogen. Here, we present the genome sequence of Vibrio nigripulchritudo TUMSAT-TG-2018, which was isolated from a diseased Pacific white shrimp (Litopenaeus vannamei). The assembly totaled 6.8 Mbp, consisting of two chromosomes and four plasmids. ...[more]

PMID: 33273004

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Project description:A simple bioassay that quantifies feed intake as an estimation of relative attractability of feeds containing different ingredients in the Pacific white shrimp Litopenaeus vannamei is described. Fish meal (FM), fish protein hydrolysate (FPH), squid meal (SqM) and casein (CN) were assessed at the same dietary level for their relative influence on feed intake rates of Litopenaeus vannamei. A bland diet containing 92% whole wheat grain meal, 6% diatomaceous earth and 2% alginate with a known low attractability was used as the standard control or base diet. Ingredients were added to the bland base control diet at a level of 3% as fed. Shrimp were stocked into 80 L glass tanks (n= 20 per tank) in a recirculating aquaculture system. Tanks were randomly assigned to one of five diet treatments (3tanks/treatment). Experiments measuring the attractability of each feed were conducted twice daily at 0900 hours and 1330 hours over a five day period. For each experiment, 40 feed pellets (ca. 1 g) corresponding to the assigned treatment were provided to each tank. To calculate the rate of feed intake, pellets remaining in each tank were counted at six minute intervals for a seventy-two minute period. Differences in rate of feed intake among diets were evaluated using Cox Regression Analysis. This attractability assay required only small amounts of ingredients and incorporated ingredients into a bland feed, which significantly reduces the influence from other ingredients or compound in the pellets. All of the test protein ingredients, especially SqM, in the feeds significantly increased the feed consumption rate. The diet containing SqM was consumed at a significantly higher rate than those containing casein and FM but not FPH. FPH and CN containing diets were not significantly different but consumed at a higher rate than the diet containing FM. Results of these trials indicate that the presence of certain ingredients can increase feed intake, thereby increasing nutrient availability of the diets. This reported method to determine consumption of diets containing certain ingredients can be considered as a valid method to estimate attractability.

Dataset Information

Genome Sequence of Vibrio nigripulchritudo Strain TUMSAT-TG-2018, Isolated from Diseased Pacific White Shrimp, Litopenaeus vannamei.

Publications

Genome Sequence of Vibrio nigripulchritudo Strain TUMSAT-TG-2018, Isolated from Diseased Pacific White Shrimp, <i>Litopenaeus vannamei</i>.

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