Saturday, June 19, 2021
  • time : 11:43:31
  • Date : Tue May 18, 2021
  • news code : 142525
Researchers at the International Sturgeon Research Institute have succeeded in replacing the Artemia Decapsulated cysts with live food during the feeding stages of sturgeon larvae.

According to the Public Relations and International Affairs Institute of the Sturgeon International Research Institute (ISRI); Mr. Nemat Peyran Mana, one of the researchers of this institute and the implementer of the project "Investigation of the effects of using Artemia Decapsulated cyst on increasing the growth and survival of beluga (Huso Huso) larvae" succeeded in using Decapsulated cysts from non-hatching Artemia cysts as a substitute for live food (Naplius Artemia , chironomidae and frozen biomass of Artemia) in the early stages and began to actively feed beluga (huso huso) larvae. Preliminary results of this study showed that Decapsulated cysts are a suitable alternative for Naplius artemia in initiating active feeding of beluga (huso huso) larvae and can play an important role in increasing the growth and survival of larvae.

The Artemia cysts contains a layer of indigestible brown color for aquatic animals called the chorion that encloses the fetus. In this study, the hard shell of Artemia non-hatching cysts was isolated for optimal use with special techniques and chemicals. From each Artemia cyst, a fetus without outer shell (yolk) yellow or orange with a diameter of 210 to 270 microns was obtained. Peeled cysts are dried in a greenhouse, then crushed with a mixer, graded using sieves of different sizes and Eventually will be used for feeding. This product can be stored in dry and cold conditions for up to 6 months due to the elimination of bacteria and fungi in the cyst surface.

By conducting this research project and promoting the obtained achievements, in addition to reducing production costs, increasing the added value of non-hatching cysts in feeding sturgeon larvae can be predicted. The results of this research will be introduced to the aquaculture community for exploitation after presenting the final report.

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