Early development of eye structure in Beluga (Huso huso)

Document Type : Physiology (Animal)

Authors

1 Department of Fisheries, Faculty of Natural Resources, University of Tehran, P.O. Box: 4111, Karaj, Iran

2 Agricultural Research, Education and Promotion Organization (AREEO), Caspian Sea Sturgeon Research Institute, Rasht, Iran

Abstract

This study aimed to survey development of eye Beluga (Huso huso) from hatching time to 32 days after hatching and also determine the structure and organization of the various layers of development of eye and it was at this stage. At hatching, Great sturgeon larvae possess an undifferentiated  lens  and  retina  and  the  eye  begins  to  differentiate  at  2  days  post-hatch.  The most  obvious  changes  of  eye  structural  Beluga  occurred  between  hatching  time  and  4  days after  hatching  when  At  this  age,  the  eye  wall  has  a  developed  and  organized  location,  lens, iris,  choroid,  sclera,  cornea  and  the  vitreous  cavity  and  at  8  days  after  hatching,  all  retinal layers observed quite distinct. 

Keywords

Journal of Animal Environment
Volume 5, Issue 2
September 2012
Pages 43-50

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