In this investigation, serum steroid hormones such as testosterone (T), 17β-estradiol (E2) and progesterone (P) in 12 female of the migratory population of Common carp (Cyprinus carpio) in southeast of Caspian Sea during a year from May 2011 to May 2012 were studied. The results of present study revealed that changes in levels of steroid hormones, (E2) and (T) were closely correlated to ovarian...

background & aim: marshmallow (althaea officinalis) is one of the most popular medicinal plants used in traditional medicine with antibacterial and antioxidant properties. this study was conducted to evaluate the effects of marshmallow extract (althaea officinalis l.) administration on blood cells and biochemical parameters of carp liver. experimental: 150 carp (weighing 37.65 ± 4.40 g) wer...

The production of betok fish has experienced overfishing and resulted in a decrease productivity, therefore one the efforts made to help success spawning can be done by stimulating factors related reproductive system, namely work hormones gonadal maturation artificial with hypophysation method. This study aims look at response goat pituitary extract fecundity (A. testudineus, Bloch). research w...

To evaluate the effects of anesthesia with different concentrations of clove extract (0, 50, 200, 400 and 600 mg) on sperm function and some hematological parameters in Prussian carp, Carassius gibelio (Bloch, 1782), 30 mature male were examined. In this purpose, sperm motility traits and some hematological parameters ( Red blood cell count (RBC), hemoglobin concentration (Hb), hematocrit (PCV)...

The present study correlates the profiles of certain ovarian steroid hormones with stages of oocyte maturation in common carp induced to spawn by classic hypophysation. Sixteen females were injected at midday with a calibrated homologous pituitary extract (cPE) containing 0.07 mg immunoreactive cGTH/kg body wt, as a priming dose. Ten of those females were injected 11 hr later with cPE containin...

Background & Aim: Marshmallow (Althaea officinalis) is one of the most popular medicinal plants used in traditional medicine with antibacterial and antioxidant properties. This study was conducted to evaluate the effects of marshmallow extract (Althaea officinalis L.) administration on blood cells and biochemical parameters of carp liver. Experimental: 150 carp (weighing 37.6...

Pro-opiomelanocortin (POMC) is the precursor of a number of biologically active peptides, including adrenocorticotropic hormone, alpha-melanocyte-stimulating hormone and beta-endorphin, which are released by the pituitary glands of fish as well as mammals. To quantify the levels of expression of the two POMC mRNAs relative to one another during the response of the common carp to temperature-ind...

background: asparagus is a plant with high nutritional, pharmaceutical, and industrial values. objective: the present study aimed to evaluate the effect of aqueous extract of asparagus roots on the hypothalamic-pituitary-gonadal axis hormones and oogenesis in female rats. materials and methods: in this experimental study, 40 adult female wistar rats were divided into five groups, which consist ...

School of Environment and Natural Resources Ohio State University Extension Columbus, Ohio, USA Leonardo et al. (2004) obtained 100% ovulation in females of P. fasciatum maintained in ponds in Sao Paulo State, Brazil, following hormonal injections of carp pituitary extract (CPE) or human chorionic gonadotropin (hCG). In that study, the most detailed thus far, females released between 17 and 20%...