Scholarlink

<p>The development of efficient and sustainable diets for sea cucumber aquaculture is critical to support the growth of this emerging sector. This study evaluated the effects of four experimental diets (D1 to D4) on juvenile <i>Apostichopus parvimensis</i> during a 4-week feeding trial conducted in triplicate. The experimental diets differed in their main ingredient profiles: D1 was based on fish organic residues (FOR); D2 used a fishmeal–soybean meal–wheat meal mixture; D3 included a brown seaweed meal mix as a wheat meal substitute; and D4 combined higher fishmeal inclusion with the same brown seaweed meal mix. Sea cucumber performance parameters (final weight, weight gain, and specific growth rate), survival, dry body weight, feed conversion ratio (FCR), and digestive enzyme activities (trypsin, lipase, amylase) were measured and analyzed using one-way ANOVA and Tukey’s test. The D4 diet led to the highest FW and SGR, yet exhibited significantly lower dry body weight and a tendency to a lower FCR. Diets D2 and D3 resulted in significant trypsin activity compared to D1 and D4. Diet D2 showed the highest lipase activity but the lowest trypsin activity. Amylase activity was significantly reduced in D4, likely related to the presence of complex seaweed polysaccharides. Overall, these findings provide insight into the effects of dietary ingredients such as FOR, brown seaweeds, and spirulina on growth and digestive physiology of juvenile sea cucumbers, contributing to the development of sustainable diet formulations. Highlights. The study evaluates different feed formulations for juvenile <i>Apostichopus parvimensis</i>. A diet combining fishmeal and brown seaweed (D4) yielded the highest growth performance. Spirulina inclusion enhanced dry matter deposition and trypsin activity. Wheat meal–based diet (D2) led to higher lipase but the lowest trypsin activity. Fish organic residues and spirulina show promising potential for juvenile <i>A. parvimensis</i> diets.</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

Growth performance and digestive enzyme activity in sea cucumber Apostichopus parvimensis fed diets formulated with alternative ingredients

  • 期刊论文

  • 发表日期：

    2026年3月10日

查看全文
  • Alexia Omont,
  • Milton Spanopoulos-Zarco,
  • Gabriel Robles-Villegas,
  • Dariel Tovar-Ramírez,
  • Alberto Peña-Rodríguez

摘要

The development of efficient and sustainable diets for sea cucumber aquaculture is critical to support the growth of this emerging sector. This study evaluated the effects of four experimental diets (D1 to D4) on juvenile Apostichopus parvimensis during a 4-week feeding trial conducted in triplicate. The experimental diets differed in their main ingredient profiles: D1 was based on fish organic residues (FOR); D2 used a fishmeal–soybean meal–wheat meal mixture; D3 included a brown seaweed meal mix as a wheat meal substitute; and D4 combined higher fishmeal inclusion with the same brown seaweed meal mix. Sea cucumber performance parameters (final weight, weight gain, and specific growth rate), survival, dry body weight, feed conversion ratio (FCR), and digestive enzyme activities (trypsin, lipase, amylase) were measured and analyzed using one-way ANOVA and Tukey’s test. The D4 diet led to the highest FW and SGR, yet exhibited significantly lower dry body weight and a tendency to a lower FCR. Diets D2 and D3 resulted in significant trypsin activity compared to D1 and D4. Diet D2 showed the highest lipase activity but the lowest trypsin activity. Amylase activity was significantly reduced in D4, likely related to the presence of complex seaweed polysaccharides. Overall, these findings provide insight into the effects of dietary ingredients such as FOR, brown seaweeds, and spirulina on growth and digestive physiology of juvenile sea cucumbers, contributing to the development of sustainable diet formulations. Highlights. The study evaluates different feed formulations for juvenile Apostichopus parvimensis. A diet combining fishmeal and brown seaweed (D4) yielded the highest growth performance. Spirulina inclusion enhanced dry matter deposition and trypsin activity. Wheat meal–based diet (D2) led to higher lipase but the lowest trypsin activity. Fish organic residues and spirulina show promising potential for juvenile A. parvimensis diets.