Mahmoud Hafezieh
Iranian Fisheries Sciences Research Institute(IFSRI)
Title: Water Stability and Floatation Test of Shrimp (Litopenaeus vannameii) Pellets Using Brown Seaweed Powder (Sargassum ilicifolium)
Biography
Biography: Mahmoud Hafezieh
Abstract
Statement of the Problem: Shrimp food factory in Iran used high amounts of chemical binders which is not environment friendly.
The purpose of this study is binding effect of Sargassum ilicifolium on Litopenaeus vannamei pellets.
Methodology & Theoretical Orientation: Shrimp feed bound with a brown seaweed, Sargassum ilicifolium powder replaced at three level with protein resources in laboratory. Treatments were incorporated at zero (used 2% formaldohyde sorbate=FS), 5, 10 and 15% level of seaweed while in the commercial feed(CF) pellet which used a chemical binders routine in shrimp feed factory. After 30 minutes of exposure to sea water (equal to the Oman Sea water, 33 ppt salinity).
Findings: 15% treatment maintained a 25% pellets afloat while zero treatment had the least. There was a difference in the percentage number of pellets afloat between 5 minutes and 30 minutes of exposure to water (P<0.05). There was also a difference in the water stability of the different levels seaweed used (P<0.05).
Conclusion & Significance: 15% treatment had the highest water stability (57.70±1.60) after 50 minutes of exposure to water.
