| Autor: |
Huang, Xiyuan, Yu, Yushi, Tian, Ruihuan, Zhao, Zihe, Ding, Jun, Zhao, Chong |
| Předmět: |
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| Zdroj: |
Aquaculture International; Dec2024, Vol. 32 Issue 6, p8561-8573, 13p |
| Abstrakt: |
Handling stresses have detrimental effects on sea cucumbers, highlighting the importance of finding an effective solution to mitigate these challenges in aquaculture. The present study examined the effects of dietary tryptophan on fitness-related behaviors under two common handling stresses (seawater washing and air exposure) in sea cucumber aquaculture. We found that sea cucumbers that consumed a diet with 3% dietary tryptophan demonstrated significantly enhanced crawling ability, adhesion index, food choice, and feeding ability compared to those fed with diets containing 0%, 1%, or 5% tryptophan after seawater washing. Adding 3% tryptophan to the diet effectively reduces the negative impacts of seawater washing on sea cucumbers. Similarly, sea cucumbers whose diets were supplemented with fed with 3% dietary tryptophan showed significantly better crawling and feeding behaviors after air exposure, suggesting that tryptophan effectively reduces the negative effects of this stress. However, there were no significant difference in righting response time, adhesion index, and food choice among sea cucumbers fed different levels of tryptophan after air exposure. The present study suggests aqua-farmers incorporate 3% dietary tryptophan into sea cucumber feed to minimize the behavioral harms caused by handling stresses. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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