12 Result(s)
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Bagher Mojazi Amiri
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Article
Physiological effects of the lunar cycle on the spawning of a coral reef fish, Abudefduf Vaigiensis: in vivo and in vitro trait
The aim of the present study was to investigate the lunar cycle effects of the spawning of Audefduf vaigiensis through in vivo and in vitro analysis. For this purpose, the indices of GSI, serum levels of sex ster...
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Article
Effect of oral administration of GnRHa+nanoparticles of chitosan in oogenesis acceleration of goldfish Carassius auratus
Several methods have been used to accelerate previtellogenesis and vitellogenesis stages in fish, including hormonal induction, sustained-release delivery systems, and oral delivery of gonadotropin-releasing h...
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Article
Fluoxetine inhibits aggressive behaviour during parental care in male fighting fish (Betta splendens, Regan)
The increasing presence of aquatic contaminants, such as the pharmaceutical fluoxetine, has raised concerns over potentially disrupting effects on several aspects of fish reproduction. However, the effects of ...
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Article
Gonadal histology and plasma sex steroid concentrations in maturing and mature spring migrants of Caspian lamprey Caspiomyzon wagneri in the Shirud River, southern Caspian Sea, Iran
Maturing degree-days, gonadal histology, and changes in serum sex steroids (progesterone, P; testosterone, T; and 17β-estradiol, E2) were examined in maturing and mature spring migrant Caspian lamprey Caspiomyzon...
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Article
Immunomodulatory effect of cimetidine in common carp (Cyprinus carpio L.)
The main indication of cimetidine is being H2-receptor antagonist, but studies suggest that cimetidine may also act as a non-specific stimulant of cell-mediated immunity and immunomodulator. In order to determine...
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Article
Effects of ghrelin on some plasma hormonal changes in juvenile Persian sturgeon (Acipenser persicus)
The functions of ghrelin, a novel weight-regulatory peptide, have not been intensively investigated in primitive fish. This experiment was conducted to determine whether ghrelin has a specific effect on growth...
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Article
Sex steroids, gonadal histology and biological indices of fall and spring Caspian lamprey (Caspiomyzon wagneri) spawning migrants in the Shirud River, Southern Caspian Sea
This study investigates sex steroids, gonadal histology and some biological indices of fall and spring spawning migrants of Caspian lamprey Caspiomyzon wagneri (Kessler, 1870). Blood and gonad samples were collec...
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Article
The study of some haematological and serum biochemical parameters of juvenile beluga (Huso huso) fed oligofructose
A study was conducted to investigate the effects of dietary oligofructose (1, 2 and 3%) on the blood profiles of beluga (Huso huso) juveniles (18.77 ± 0.76 g) compared to fish fed an un-supplemented diet. After 7...
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Article
Assessment of ability of endangered Caspian brown trout, Salmo trutta caspius (Salmonidae) in production of semen with desirable quality
To assay the effects of strip** frequency on semen characteristics of Caspian brown trout, Salmo trutta caspius, the chemical composition of seminal fluid, sperm production (semen volume, sperm density, spermat...
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Article
Threatened fishes of the world: Salmo trutta caspius (Kessler, 1877) (Salmoniforms: Salmonidae)
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Article
Effects of triploidy on the Caspian salmon Salmo trutta caspius haematology
The aim of this study was a comparison of key haematological features of diploid (2n) and triploid (3n) Caspian salmon (Salmo trutta caspius). Morphometric indices of erythrocytes were determined on blood smears ...
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Article
Correlations between circulating insulin-like growth factor-I and thyroxine and cortisol hormone levels, and some biometrical traits in female brood stocks during the late stages of sex maturation and in juvenile Persian sturgeon (Acipenser persicus)
Relationships between insulin-like growth factor-I (IGF-I) and thyroxine (T4) and cortisol hormones were studied in female brood stocks of Persian sturgeon [Acipenser persicus; caught from both sea water (SW) and...
