Embryonic development of common dentex (Dentex dentex L.) eggs


SAKA S. , Firat K. , COBAN D.

TURKISH JOURNAL OF VETERINARY & ANIMAL SCIENCES, cilt.30, ss.35-40, 2006

  • Cilt numarası: 30 Konu: 1
  • Basım Tarihi: 2006
  • Dergi Adı: TURKISH JOURNAL OF VETERINARY & ANIMAL SCIENCES
  • Sayfa Sayısı: ss.35-40

Özet

The embryonic development of common dentex eggs was investigated in detail in aquacultural conditions at constant temperature. The experiments were carried out at 18 +/- 0.2 degrees C. The average diameters of the eggs and oil globule were 1.032 +/- 0.008 mm and 0.233 +/- 0.002 mm, respectively. Embryonic development was observed every 15 min until the morula stage and then at hourly intervals, The morula stage, gastrula stage, neurula stage and formation of somite and kupffer's vesicle were determined 04:15 h, 10:00 h, 17:00 h and 23:00 h after fertilization, respectively. The hatching rates were 82%-86% at 18 +/- 0.2 degrees C. Hatching of the larvae took 56.30 h at 18 +/- 0.2 degrees C.