the main objective of this study was assessment of hormonal treatments effects on sperm quality improvement in barbus sharpeyi. results showed differences in effects of treatments with lhrha2, lhrha2 combined with a dopamine antagonist (met), and cpe (carp pituitary extract) on parameters of sperm volume, motility, spermatocrit, biochemical indices of seminal plasma and sperm efficiency on arti...

Spermiation was stimulated in the mature grass puffer, Takifugu niphobles, with an injection of human chorionic gonadotropin (HCG) or carp pituitary extract (CPE). Spermatocrit and sperm density were reduced, but milt production was increased in both the HCG and CPE treatment groups relative to those in the control group (P <0.05). These results should be useful for increasing the fertilization...

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. ...

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. ...

Commonly, female European eels are injected weekly with pituitary extract (PE) from carp (CPE) or salmon (SPE) to induce sexual maturation. However, a PE is mixture of gonadotropins and other hormones that not specific for eel rapidly cleared circulation. The aim this study was therefore test the effects highly stable eel-specific recombinant (rGTHs) on oocyte development in vitro vivo eels. Fo...

To induce oocyte development, eels are weekly injected with salmon or carp pituitary extract (CPE). The handling and hormone peaks result in inferior quality; therefore, alternative treatments that improve quality reproductive success require investigation. enhancement of early sexual maturation by a single injection human chorionic gonadotropin (hCG), administered prior to CPE treatment, was i...

The effectiveness of two kinds of dopamine antagonist (DA), metoclopramide (Met) and domperidone (Dom) combined with the gonadotropin releasing hormone analogue (D-Ala6, Des Gly10 ethylamide) GnRHa was assayed on the ovulation success, latency period, ovulation index (OI) and fertilization success of kutum, Rutilus frisii kutum (Kamenskii, 1901). Brood fish were injected intra-peritoneally as f...

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...