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畜牧学 > 动物营养与饲料科学

 

DOI：10.31220/agriRxiv.2021.00083
声明：预印本系统所发表的论文仅用于最新科研成果的交流与共享，未经同行评议，因此不建议直接应用于指导生产实验。

Chromium picolinate supplementation improves growth and resistance ability in the sea cucumber Apostichopus japonicus .

  • Qixia Chan , 
  • Fuqiang Wang , 
  • Yuzhe Han , 
  • Tongjun Ren , 
  • Lidong Shi , 
  • Xue Ren , 
  • Fanshuang Zeng , 
  • Mu-zi Li , 
  • Wenbo Che

  • 1. Key Laboratory of Mariculture & 

  • 2.  Stock Enhancement in North China's Sea Ministry of Agriculture and Rural Affairs Dalian Ocean University Dalian 116023 China; 

  • 3. Key Laboratory of Mariculture & 

  • 4.  Stock Enhancement in North China's Sea Ministry of Agriculture and Rural Affairs Dalian Ocean University Dalian 116023 China; 

  • 5. Key Laboratory of Mariculture & 

  • 6.  Stock Enhancement in North China's Sea Ministry of Agriculture and Rural Affairs Dalian Ocean University Dalian 116023 China; 

  • 7. Key Laboratory of Mariculture & 

  • 8.  Stock Enhancement in North China's Sea Ministry of Agriculture and Rural Affairs Dalian Ocean University Dalian 116023 China; 

  • 9. Key Laboratory of Mariculture & 

  • 10.  Stock Enhancement in North China's Sea Ministry of Agriculture and Rural Affairs Dalian Ocean University Dalian 116023 China; 

  • 11. Key Laboratory of Mariculture & 

  • 12.  Stock Enhancement in North China's Sea Ministry of Agriculture and Rural Affairs Dalian Ocean University Dalian 116023 China; 

  • 13. Key Laboratory of Mariculture & 

  • 14.  Stock Enhancement in North China's Sea Ministry of Agriculture and Rural Affairs Dalian Ocean University Dalian 116023 China; 

  • 15. Key Laboratory of Mariculture & 

  • 16.  Stock Enhancement in North China's Sea Ministry of Agriculture and Rural Affairs Dalian Ocean University Dalian 116023 China; 

  • 17. Dalian Modern Agricultural Production Development Service Center Dalian 116023 Chin; 

  •  

    Abstract: Abstract Poor performances in growth and resistance ability greatly hamper the aquaculture of the sea cucumber Apostichopus japonicus . Here, sea cucumbers were fed artificial diets with four concentrations of dietary Cr-Pic supplementation (0, 0.3, 0.6, 0.9 mg/kg) for 56 days. The growth, digestive enzyme activities (LPS, AMS and pepsin), expression of growth-related genes ( MAPK-7 , FGFR-1 and c-myc ) and resistance ability (immune responses and antioxidant system) were subsequently assessed. The present study found that the SGR and BWG in 0.6 mg/kg group were significantly higher than those in control group. Significantly better activities of LPS and AMS and higher expressions of genes MAPK-7 and c-myc were consistently detected in 0.6 mg/kg group than those in control group, suggesting that dietary Cr-Pic supplementation greatly improves the food utilization and genes expression and consequently promotes the growth performances in sea cucumbers. Further, the activities of immune enzymes (AKP, ACP and LZM) and antioxidant enzymes (SOD and T-AOC) in 0.6 mg/kg group were significantly higher than those in control group, indicating that dietary Cr-Pic supplementation significantly enhances the resistance ability of sea cucumbers. The present study provides valuable information for improving the production efficiency of sea cucumbers A. japonicus .

    Key words: supplementation; sea cucumbers; resistance ability; pic; control group; dietar

    提交时间：2021-01-01

    版权声明：作者本人独立拥有该论文的版权，预印本系统仅拥有论文的永久保存权利。任何人未经允许不得重复使用。

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Qixia Chan, Fuqiang Wang, Yuzhe Han, Tongjun Ren, Lidong Shi, Xue Ren, Fanshuang Zeng, Mu-zi Li, Wenbo Che. Chromium picolinate supplementation improves growth and resistance ability in the sea cucumber Apostichopus japonicus .. 2021. agriXiv.2021.00083

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