The effect of fasting on spawning performance, maternal, and egg nutrient composition, embryo/larval development was monitored in gilthead seabream (Sparus aurata). Two broodstocks were fasted during two consecutive years, for a period 43 54 days within the season, preliminary (year 1, 5-year-old breeders) main study 2, 6-year-old breeders), respectively. Mean daily fecundity showed declining t...

The sustainable development of the aquaculture industry relies on use alternative conventional and emergent raw materials that contributes to a circular economy reduce dependency fish meals oils coming from oceanic populations. Additionally, genetic selection farmed can display higher growth feed utilization when fed feeds, is pointed out be complementary valuable tool facilitate implementation...

owing to reduction of sturgeon stocks in various water bodies, artificial propagation has become significantly important for stock restoration and appropriate broodstock selection is vital in this process. selection of suitable broodstocks may influence the quality and quantity of obtained eggs and larva. the present study aimed to examine correlation between some morphometric and reproductive ...

the purpose of this project is the investigation of lhrha2 integrated effect with carp pituitary extract (cpe) in three stages injection on sexual indexes (fecundity, fertilization, hatch and larval survival) in artificial propagation of barbusxanthopterus. 20 fish were divided in to 4 treatment and injected interpritoneal as follows 4mgkg-1b.w.of cpe as positive control, 4 µg/kg +4 mgkg-1b.w. ...

background: hematological studies are valuable diagnostictechniques in the medical care of fish, reflecting the healthcondition and the effects of environmental factors on fish. objectives:due to the high value of sturgeon fish and necessityto recover the brood stock, this study was done to provide dataabout hematological parameters and reproduction normative ofwild brood stock beluga, huso hus...

Sampling was done using 90 post larvae which were produced by reproduction of some broodstocks of Fenneropenaeus indicus in one day and reared in the same situation for 4 months. Samples were divided into 3 groups: high, medium and low growth (based on weight and length). Genomic DNA was extracted from muscle tissue using the phenol-chloroform method. The polymerase chain reaction (PCR) was car...

Caspian trout (Salmo trutta caspius Kessler, 1877) is an endemic migratory subspecies in the Caspian Sea, possessing ecologic-economic and biodiversity greatly value. Among habitat factors, temperature and its possible effects on the Caspian trout genome were considered in this research. During Embryonic developmental stages (fertilization–hatching), genomic alterations of single cells were ass...

 Post larvae of wild and cultured spawners of the Indian white shrimp (Penaeus indicus, Milne Edwards, 1837) were reared to market size, in commercial ponds of shrimp farming site of Helleh, in Bushehr Province, during a six months period. Environmental factors, management process and the diet used to feed shrimps were almost similar for both treatments. Averages of the weight, length, specific...