Navratil S.: Parasitoses in the Fry of Selected Freshwater Fish Species under the Conditions of Stripping and Rearing. Acta vet. Bmo. 60. 1991: 357-366. During the period from 1984 to 1989. the problem of parasitic invasion into the artificially reproduced and reared fry of the freshwater fish species (Barbus barbus, Chondrostoma nasus. Leuciscus cephalus, Aspius aspius) wereinvestigated at a s...

This study investigates the effects of dietary lipid sources on the growth and reproductive performance of Nile tilapia over three consecutive spawnings. Fish were reared using three experimental diets, with the goal of replacing dietary fish oil with palm oil. Three experimental diets and a commercial   trout diet was used as the control. The effect of dietary lipid on the growth performance, ...

abstract reproductive biology of female shemaya (alburnus chalcoides) studied with examination of histology, egg diameter and value of sex steroid hormones during spawning phase in the anzali wetland from march 2013 to jun 2014. finally 42 numbers of female fish were examined. the result of sex steroid hormones showed the rate of testosterone hormone in gravid fish was 7.93±1.18 ng/ml; but in r...

Fish consumption is associated with both health benefits from high-quality proteins, minerals, vitamins, and fatty acids and risks from contaminants in fish. Fish consumption advisories are issued by many government agencies to keep exposure to contaminants at a safe level. Such advisories are typically based on fillets and neglect consumption of other fish parts such as eggs by certain subpopu...

  The aims of the present study were to determine the best time for egg stripping after ovulation and to study oocyte over-ripening in the Caspian brown trout (Salmo trutta caspius). Eggs were retained in the female abdominal cavity for 40 days post ovulation (DPO). Partial volumes of eggs stripped from 10 individually identified females at 10 days intervals and fertilized with a pool of semen ...

The aim of this study was to establish an experimental protocol for the artificial reproduction royal carp ‘Cyprinus carpio’ with hormonal induction spawning. For purpose, we conducted at aquaculture farm in Khemis Meliana (Ain Defla, Algeria). included six broodstock, 4 females and 2 males. Hormone injection performed dorsal muscle under fin. done successively by GnRH a dose 3 mg/kg males hCG ...

the effectiveness of pituitary extract from crucian carp (carassius auratus linnaes 1758) in inducing ovulation in veil tail gold fish (carassius auratus gibelio bloch 1783), was examined and the effect of maternal hormone treatment on egg quality in two types of fertilization (fertilization in aquarium and artificial fertilization), were evaluated in 22·c temperature. fish were injected intrap...

Dispersal of Eriocheir sinensis from its native habitat is a worldwide concern. As one of the most invasive species known, this crab causes significant disruption to foreign ecosystems. In particular, populations in the United Kingdom (UK) are increasing in number and E. sinensis has been reported from many river catchments (www.mittencrabs.org.uk). The ecological implications of this invasion ...