Research Article Open Access

Effect of Dietary Inositol on Growth, Feed Utilization and Blood Biochemical Parameters for Juvenile Barramundi (Lates calcarifer Bloch)

Shi-Qiang Diao1, Zhong Huang1, Shui-Sheng Chen1, Jin Niu1, Zhuo-Jia Li1, Xian Ding1 and Hei-Zhao Lin1
  • 1 South China Sea Fisheries Research Institute of CAFS, 231 Xingang Road Western, Guangzhou 510300, PR, China

Abstract

Problem statement: The utilization of inositol was detected for growth performance and erum biochemical parameters of juvenile barramundi (Lates calcarifer). Approach: A 56 day feeding trial was conducted to evaluate the effect of inositol on growth, feed utilization and serum biochemical parameters for juvenile barramundi Lates calcarifer (initial size 5.51±0.07g). Six experimental fish meal-based isonitrogenous (42% crude protein) and isolipidic (10% crude lipid) diets containing levels of inositol (350, 364, 458, 507, 720, 1050 mg kg-1 diet) were formulated. Results: Fish fed diet containing inositol 507 mg kg-1 diet had the significantly highest weight gain (WG, %) among all the groups (p<0.05) and had significantly lower Feed Conversion Ratio (FCR) than fish fed the diet containing inositol 458 mg kg-1 diet (p<0.05). Survival and Hepatosomatic Index (HSI) were not significantly affected by graded levels of dietary inositol (p>0.05). However, significantly lower Viscerasomatic Index (VSI) was found in fish fed diet without supplemental inositol (p<0.05). Dietary inositol levels did not affect whole body moisture, crude protein and lipid contents (p>0.05). Total protein and triacylglycerol in serum increased with increasing dietary inositol levels up to 507 mg kg-1 diet (p<0.05). The significantly lowest blood urea nitrogen was found in fish fed dietary inositol 458 mg kg-1 diet among all groups except for 720 mg kg-1 diet. Total Cholesterol (TC) of fish fed dietary inositol 507-1050 mg kg-1 diet was higher than those of fish fed dietary inositol 350-458 mg kg-1 diet. Conclusion: Results of the present investigation demonstrated significant improvement of growth and feed utilization of juvenile barramundi can be achieved by inositol supplementation at 507 mg kg-1 diet.

American Journal of Agricultural and Biological Sciences
Volume 5 No. 3, 2010, 370-375

DOI: https://doi.org/10.3844/ajabssp.2010.370.375

Submitted On: 26 August 2010 Published On: 30 September 2010

How to Cite: Diao, S., Huang, Z., Chen, S., Niu, J., Li, Z., Ding, X. & Lin, H. (2010). Effect of Dietary Inositol on Growth, Feed Utilization and Blood Biochemical Parameters for Juvenile Barramundi (Lates calcarifer Bloch). American Journal of Agricultural and Biological Sciences, 5(3), 370-375. https://doi.org/10.3844/ajabssp.2010.370.375

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Keywords

  • Lates calcarifer bloch
  • inositol
  • growth
  • blood biochemical index