Scholarlink

Abstract <p>The expression of genes encoding transcriptional myogenic regulatory factors (MRF) in muscles and the activity of enzymes involved in energy and carbohydrate metabolism in the liver and muscles of the rainbow trout <i>Oncorhynchus mykiss</i> Walb., grown under 24-hour lighting and fed at night in aquaculture conditions in one of the southern regions of the Russian Federation for seven months, were studied. The results of this study showed that this regime, introduced into the standard technology of trout growing, had a beneficial effect on its condition and growth. By the end of the study, trout individuals grown under the experimental regime differed from the control variants in having higher expression levels of the MRF genes (<i>myod1, myf5, mlc2,</i> and <i>mstn1a</i>) and increased activity of pyruvate kinase and cytochrome <i>c</i> oxidase in the liver. It can be assumed that the introduction of additional lighting and feeding at night into the technology of trout cultivation stimulates aerobic metabolism, promotes the intensification of muscle growth processes in trout individuals, and, in general, has a positive effect on the condition of the fish organism.</p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Biochemical and Molecular–Genetic Growth Indices of Rainbow Trout (Oncorhynchus mykiss Walb.) under the Conditions of the Southern Region of the Russian Federation in a Long-Term Study

  • 期刊论文

  • 发表日期：

    2025年6月9日

查看全文
  • M. A. Rodin,
  • M. V. Kuznetsova,
  • M. Yu. Krupnova,
  • A. E. Kuritsyn,
  • N. N. Nemova

摘要

Abstract

The expression of genes encoding transcriptional myogenic regulatory factors (MRF) in muscles and the activity of enzymes involved in energy and carbohydrate metabolism in the liver and muscles of the rainbow trout Oncorhynchus mykiss Walb., grown under 24-hour lighting and fed at night in aquaculture conditions in one of the southern regions of the Russian Federation for seven months, were studied. The results of this study showed that this regime, introduced into the standard technology of trout growing, had a beneficial effect on its condition and growth. By the end of the study, trout individuals grown under the experimental regime differed from the control variants in having higher expression levels of the MRF genes (myod1, myf5, mlc2, and mstn1a) and increased activity of pyruvate kinase and cytochrome c oxidase in the liver. It can be assumed that the introduction of additional lighting and feeding at night into the technology of trout cultivation stimulates aerobic metabolism, promotes the intensification of muscle growth processes in trout individuals, and, in general, has a positive effect on the condition of the fish organism.