Authors
Abstract
This study was done for ontogeny of tissue of vertebral column and dorsal fin inPersian sturgeon. So 70 Persian sturgeon in 1389 year include of before atractive yolk sac(2 and 6 days old), afteratractive yolk sac(9 day old), before release(40 day old), release(70 day olds), one and four years old after preperation from, Dr. Dadman international sturgeon research institute of Rasht, fixed in bouen fixative.Then rutin histological stages were done and parafin blocks were cut at 6 microne.For histological studies slides were stained with H&E, Safranin-O and Verhoff. Samples of larval stage fixed in fixative completely but 5 mm cartilage of dorsal fin and vertebral column cut in upper age. After preperation of Necessary photomicrographs, index of morphocytology, changes in number of isogenic groups Was recorded with use of Biocon soft ware in 10 microscopic squars.Microscopic studies showed in Persian sturgeon cartilage tissue was made of Perichondrium, Chondroblast and Chondrocyte.In numeration and measurement of area of cartilage cells, decrease in area but number of cells redused. Determining of chondroblasts, chondrocytes and isogenous groups showed that in Persian sturgeon cartilage of vertebral column was hyaline, but elastic in dorsal fin.
Keywords
)