Journal of Aquaculture Research & Development

Influence of exposure to magnetic field on water properties and hatchability of Artemia salina

2^nd Global Summit on Aquaculture & Fisheries

July 11-13, 2016 Kuala Lumpur, Malaysia

Sadam Mohamad Hassan

Universiti Malaysia Perlis School of Bioprocess Engineering, Malaysia

Posters & Accepted Abstracts: J Aquac Res Development

Abstract:

This study is based on earlier works which discussed the effects of magnetic field exposure on the properties of water. Magnetic water is produced when water is passed through a magnetic field with the purpose of modifying its structure. The magnetic field can cause a hierarchy of changes ranging from the dynamics of electrosolitons to the state of macromolecules of water. The changes in physical and chemical properties of magnetized water affect the biological properties of the organism that consumes the magnetic water such as the organism�??s rate of respiration, which in turn affects its entire metabolic system. Literature have already shown that exposure of water to a magnetic field has positive effects on its properties and that it makes it better for plant irrigation, livestock water-drinking , and for metabolism too. However, the application of magnetized water in aquaculture is still in its infancy. This study is a step towards gaining a better understanding of the effect of magnetism on water properties and the biology of culture organisms, such as the brine shrimp, A. Salina. The present study evaluates the effects of magnetic field exposure on water properties which in turn affect the hatchability of A. Salina. Magnetic field strengths of 0.1, 0.15 and 0.2 Tesla were applied to water for different time periods of 5 hr, 10 hr, 15 hr, and 20 hr. The dissolved oxygen (DO mg/l) was found to increase by a maximum of 8 %. pH also increased by 4.18% which is favorable for the A. Salina. The ammonium (NH4-N mg/L) and ammonia (NH3-N mg/L) levels were found to have decreased by 36.71 and 22.6 % respectively. Salinity (ppt), specific conductance (μS/cm) and total dissolved solids (mg/L) were also found to have increased after magnetization. Overall, the exposure of water to a magnetic field was found to have significantly (P �?� 0.05) increased the hatchability rate of A. Salina. A much better increase of 39.61 % in A. Salina hatchability rate (H%) was attained in water exposed to a magnetic field of 0.15 Tesla for 20 hours. This has positive implications for aquaculture because a higher A. Salina hatchability may mean that the brine shrimp can be bred at a both cheaper and higher rate, which in turn promises of a rapid growth of this industry.

Biography :

Email: saddam.iraq1@yahoo.com