Scholarlink

<p>This study aimed to evaluate the effects of using annatto oil extract in the diet of red <i>Betta splendens</i> females subjected to temperature stress. A total of 150 juveniles (initial weight 0.997 ± 0.038&#xa0;g and 3.909 ± 0.268&#xa0;cm) were used, randomly distributed in 15 aquariums (20 L). The fish were fed for 28&#xa0;days with diets containing increasing levels of annatto oil extract: 0.00; two; 4; 6- and 10-mL.kg<sup>−1</sup> diet. In the end, all individuals were submitted to a decrease in temperature and maintenance in the cold, then passed the recovery test, remaining for 6&#xa0;h at low temperatures. No differences were observed regarding animal performance and survival. The oily extract did not change digestive and liver functions and skin color. The use of 2 and 10&#xa0;mL promoted an increase in superoxide dismutase activity in the skin of fish submitted to a decrease in temperature. The use of 2 and 4&#xa0;mL decreased catalase activity in the skin. High levels of oil extract increased gill catalase activity in temperature recovery. It is concluded that 10&#xa0;ml of annatto oil extract is efficient in mitigating the effects of low-temperature stress in <i>Betta splendens</i> females.</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

Mitigation of cold stress in red female betta (Betta splendens) through dietary supplementation with annatto (Bixa orellana L.) oil extract

  • 期刊论文

  • 发表日期：

    2025年1月2日

查看全文
  • Larissa Selini Dorce,
  • Márcia Valéria Silva do Couto,
  • Weliton Vilhalba da Silva,
  • Mayara Schueroff Siqueira,
  • Erika do Carmo Ota,
  • Klaus Casaro Saturnino,
  • Marcos Paiva Scardua,
  • Dacley Hertes Neu,
  • Silvia Maria Martelli,
  • Claucia Aparecida Honorato

摘要

This study aimed to evaluate the effects of using annatto oil extract in the diet of red Betta splendens females subjected to temperature stress. A total of 150 juveniles (initial weight 0.997 ± 0.038 g and 3.909 ± 0.268 cm) were used, randomly distributed in 15 aquariums (20 L). The fish were fed for 28 days with diets containing increasing levels of annatto oil extract: 0.00; two; 4; 6- and 10-mL.kg−1 diet. In the end, all individuals were submitted to a decrease in temperature and maintenance in the cold, then passed the recovery test, remaining for 6 h at low temperatures. No differences were observed regarding animal performance and survival. The oily extract did not change digestive and liver functions and skin color. The use of 2 and 10 mL promoted an increase in superoxide dismutase activity in the skin of fish submitted to a decrease in temperature. The use of 2 and 4 mL decreased catalase activity in the skin. High levels of oil extract increased gill catalase activity in temperature recovery. It is concluded that 10 ml of annatto oil extract is efficient in mitigating the effects of low-temperature stress in Betta splendens females.