publication . Thesis . 2009

Physiological and biochemical study of over-ripened oocyte in the cultivated Caspian brown trout (Salmo trutta caspius) and determination of egg quality markers

Bahre Kazemi, Masoumeh;
Open Access Persian
  • Published: 01 Jan 2009
  • Publisher: Islamic Azad University, Science and Research Branch, Tehran, Fisheries
Abstract
To determine the best time for egg stripping after ovulation and over-ripened oocyte in the Caspian brown trout (Salmo trutta caspius), the eggs were retained in theparental abdominal cavity for 40 days post-ovulation (DPO) at 7±0.6°C. Eggs were stripped every 10-day interval in 4 treatment and were fertilized with a pool of semen obtained from 8 males. Also, the physiology and biochemistry of the eggs and ovarian fluids were studied. Results showed that the level of eyed eggs and hatched alevins declined with over-ripening time: that is, the expected amounts (90.65 ± 6.28% for eyeing and 86.33 ± 6.82% for hatching) in newly ovulated eggs (0–10 DPO) decreased to...
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Subjects
Medical Subject Headings: embryonic structures
free text keywords: Aquaculture, Biology, Fisheries, Aquaculture, Biology, Fisheries
Communities
Fisheries and Aquaculture Management

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