Effects of dietary levels of carbohydrate, lipid, phosphorus and zinc on the growth, feed conversion and protein efficiency ratio of Nile tilapia (Oreochromis niloticus)

Li Zhongjie; Lei Wu; Yang Yunxia; Ye Jun

doi:10.1007/BF02850854

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Effects of dietary levels of carbohydrate, lipid, phosphorus and zinc on the growth, feed conversion and protein efficiency ratio of Nile tilapia (Oreochromis niloticus)

Updated：2023-05-16

- Effects of dietary levels of carbohydrate, lipid, phosphorus and zinc on the growth, feed conversion and protein efficiency ratio of Nile tilapia (Oreochromis niloticus)
- Journal of Oceanology and Limnology Vol. 11, Issue 3, Pages: 229-234(1993)
- Affiliations：
  
  Institute of Hydrobiology
- Author bio：
- Funds：
- DOI：10.1007/BF02850854
  CLC：
- Published：1993
- Accepted：
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Zhongjie, L., Wu, L., Yunxia, Y. et al. Effects of dietary levels of carbohydrate, lipid, phosphorus and zinc on the growth, feed conversion and protein efficiency ratio of Nile tilapia (Oreochromis niloticus)., Chin. J. Ocean. Limnol. 11, 229–234 (1993). https://doi.org/10.1007/BF02850854
DOI：

Zhongjie, L., Wu, L., Yunxia, Y. et al. Effects of dietary levels of carbohydrate, lipid, phosphorus and zinc on the growth, feed conversion and protein efficiency ratio of Nile tilapia (Oreochromis niloticus)., Chin. J. Ocean. Limnol. 11, 229–234 (1993). https://doi.org/10.1007/BF02850854 DOI：

摘要

Abstract

A 54-day feeding experiment was conducted on juvenile Nile tilapia using isonitrogenous

isocaloric semipurified diets. The carbohydrate content in the diet was 9%

32% and 50%; the corresponding lipid content was 22.2%

12%

and 4%. The diets were supplemented with 0.85% or 1.5% phosphorus and 40 mg/kg or 100 mg/kg zinc. The experiment was carried out in flow-through aquaria using dechlorinated tap water at 23–26°C. The experiment showed that the increase of the carbohydrate content in the diets resulted in a 43–249% increase in weight gain

a 27–59% decrease in feed conversion ratio

and a 65–121% increase in protein efficiency ratio. In fish fed diets containing 36–50% carbohydrate

an increase in supplemented phosphorus to 1.5% greatly increased the weight gain. On the contrary

a high content of supplemented zinc (100 mg/kg) inhibited growth and increased feed conversion ratio.

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references

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