| 摘要: |
| 于1990年7－9月用不同维生素D水平的饵料饲喂中国对虾，研究饵料中维生素D的适宜添加量及对对虾的营养作用。结果表明，每百克饵料中添加6000IU维生素D，其体长增长率和增重率最大，蛋白质消化吸收率最好，饵料系数最低；VD对对虾存活率无明显影响；投喂适量的维生素D时，有助于钙、磷在虾体中的吸收、虾壳中的沉积、虾壳的硬化。 |
| 关键词: 中国对虾 维生素D 营养需要 |
| DOI： |
| 分类号: |
| 基金项目:国家自然科学基金资助项目，3880641号 |
附件 |
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| STUDIES ON THE NUTRITIONAL REQUIREMENT OF VITAMIN D FOR SHRIMP |
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Chen Siqing, Li Aijie
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Fisheries Department, Ocean University of Qingdao, Qingdao 266003
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| Abstract: |
| To study the proper addition and the nutritional function of VD, different concentrations of VD (0—240 IU/g) were used to feed P. chinensis in this experiment. The test shrimps were 8cm length and 7g weight in average and were cultured for 35 days.
It was found that by addition of 6 000IU of VD per 100g to diets, the rates of increase of shrimp length and weight were the largest, the digestion of protein was the best, and the feed coefficient was the lowest. It was also found that VD had no obvious effect on the survival rate of shrimps.
The experiment showed that different levels of VD affected the amount of some mineral absorbed and deposited by the shrimp. Higher VD concentration helped absorption of phosphorus, lower concentration helped absorption of calcium, so proper VD content in the diets can help the shrimps to absorb calcium and phosphorus and promote hardening of shrimp shells. |
| Key words: Penaeus chinensis, Vitamin D, Nutritient requirement |
