Using fermented mixture of macrophytes in the technology of compound feed for industrial cultivation of juvenile sea cucumber Apostichopus japonicus
https://doi.org/10.26428/1606-9919-2023-203-676-685
Abstract
Enzymatic hydrolysis of seaweed and seagrass (anfeltia Ahnfeltia tobuchiensis, laminaria Saccharina japonica, and eelgrass Zostera marina) is investigated. The enzyme preparation Viskoferm was the most effective for the mixture of these macrophytes, with high content of laminaria and eelgrass, under conditions of temperature 65 оC and pH 6.0. The hydrolysis in 16 hours reduced content of high-molecular polysaccharides and increased the portion of easily hydrolysable carbohydrates. Feeding of the sea cucumber juveniles by compound feeds with this fermented mixture of macrophytes had a positive effect on their physiological state; the food was easily digested by the animals and provided good gains. The average daily weight gain of juvenile sea cucumber in hatchery conditions had increased by 1.2 times in case of using the starter compound feed and by 1.5 times — for breeding with the productional compound feed.
Keywords
macrophyte,
laminaria,
anfeltia,
eelgrass,
enzyme preparation,
hydrolysis,
compound feed,
sea cucumber,
weight gain
Supporting agencies: The authors are grateful to the reviewers, whose constructive comments have contributed greatly to improvement of the article.
About the Authors
I. A. Kadnikova
Pacific branch of VNIRO (TINRO)
Russian Federation
Russian Federation
Irina A. Kadnikova, D.Biol., principal researcher
4, Shevchenko Alley, Vladivostok, 690091
N. M. Aminina
Pacific branch of VNIRO (TINRO)
Russian Federation
Russian Federation
Natalia M. Aminina, Ph.D., head of laboratory
4, Shevchenko Alley, Vladivostok, 690091
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Review
For citations:
Kadnikova I.A., Aminina N.M. Using fermented mixture of macrophytes in the technology of compound feed for industrial cultivation of juvenile sea cucumber Apostichopus japonicus. Izvestiya TINRO. 2023;203(3):676-685. (In Russ.) https://doi.org/10.26428/1606-9919-2023-203-676-685
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