interaction effect of three level of male age broodstock and three type of diluents (distilled water and diluents 1 and 2) for duration of motility and eyed egg rate in rainbow trout (oncorhynchus mykiss) have been studied. there was no significant difference in activation of sperm by control group (distilled water) in different male ages (p?0.05). diluents 1, in 3+ year male broodstock has sho...

This review briefly highlights previous studies on the gonadotropin-releasing hormone (GnRH) and its approaches to improving fish reproduction in aquaculture industry. Reproductive system dysfunction of captive is main problem that has be treated depending compatibility species. caused by non-synchronized maturation female male broodstock, low quality broodstock. As shown studies, induced breed...

study was undertaken to establish the optimum dietary indispensable amino acid (IAA) profile for yellow fin seabream broodstock based on the amino acid (AA) profile of broodstock, eggs and larvae of Acanthopagrus latus. Three isonitrogenous (40%) and isolipid (20%), named diets 1, 2 and 3 were formulated with different ratios of total essential amino acids per total non-essential amino acid...

The aim of this study was to contribute the development tilapia aquaculture in Côte d’Ivoire by increasing productivity Oreochromis niloticus fry fish hatcheries. Thus, production larvae compared between two breeding systems, earthen ponds and hapas ponds. Over 98 days, 900 broodstock were allowed reproduce 500 m2 others 20 50 m2, each installed 1200 m2. sex ratio one male for females at a dens...

Symbiodinium are responsible for the majority of primary production in coral reefs and found in a mutualistic symbiosis with multiple animal phyla. However, little is known about the molecular signals involved in the establishment of this symbiosis and whether it initiates during host larval development. To address this question, we monitored the expression of a putative symbiosis-specific gene...

  The first time the white spot disease (WSD) and IHHNV were reported in Iran was in 2004 and 2008, respectively in Bushehr Province. In Sistan and Balochestan province only the WSD was reported in 2008.The aim of this study was detecting these two viral diseases in these provinces, during December 2009 to April 2010. A total of 364 samples were collected according to suspected gross signs from...

Proximate analysis of broodstock and grow-out feeds for gamitana (Colossoma macropomum) and paco (Piaractus brachypomus) and their constituent feedstuffs was conducted. Literature values for specific nutrients known to affect fish reproduction were calculated from published sources for the broodstock diet. Fatty acid and amino acid profiles of broodstock eggs were obtained. Analytical informati...

One of the keys for an optimal Eurasian perch aquaculture broodstock management is being able to determine sex individuals. For perch, compared with other methods identification fish and according 3R principle (replacement, reduction refinement), ultrasonography a rapid, non-lethal, non-invasive accurate method. During two successive experiments, we used ultrasound identify gender immature broo...

  The first time the white spot disease (WSD) and IHHNV were reported in Iran was in 2004 and 2008, respectively in Bushehr Province. In Sistan and Balochestan province only the WSD was reported in 2008.The aim of this study was detecting these two viral diseases in these provinces, during December 2009 to April 2010. A total of 364 samples were collected according to suspected gross signs from...