Influence of intrinsic signals and environmental cues on the endocrine control of feeding in fish: potential application in aquaculture.

abstract：:Jawed vertebrates (Gnasthostomes) are broadly separated into cartilaginous fishes (Chondricthyes) and bony vertebrates (Osteichthyes). Cartilaginous fishes are divided into chimaeras (e.g. ratfish, rabbit fish and elephant shark) and elasmobranchs (e.g. sharks, rays and skates). Both cartilaginous fish and bony verteb...

journal_title：General and comparative endocrinology

authors： D'Souza DG,Rana K,Milley KM,MacLean HE,Zajac JD,Bell J,Brenner S,Venkatesh B,Richardson SJ,Danks JA

更新日期：2013-11-01 00:00:00

abstract：:The conversion in vitro of cholesterol (Ch) to nonpolar metabolites and ecdysteroids was studied in Y-organs of the xanthid crab, Menippe mercenaria. In one set of experiments, Y-organs were prelabeled in vivo by injecting crabs with 100 microCi of [3H]Ch, and halved glands were then incubated for 24 and 48 hr in the ...

journal_title：General and comparative endocrinology

authors： Rudolph PH,Spaziani E

更新日期：1992-11-01 00:00:00

abstract：:Fetal development is a critical period of physical development, and factors in the intrauterine environment can cause lasting effects on the growth and development of offspring. There is little research evaluating organizational effects of early androgen exposure of endogenous maternal origins on the prenatal and post...

journal_title：General and comparative endocrinology

authors： Smith AS,Birnie AK,French JA

更新日期：2010-04-01 00:00:00

abstract：:Pancreatic polypeptide (PP) has been isolated from pancreatic extracts of the herring gull (Larus argentatus) using a radioimmunoassay employing an antiserum (PP 221), generated to the conserved C-terminal hexapeptide amide of mammalian PP. Gel permeation and reverse-phase HPLC fractionation of crude pancreatic extrac...

journal_title：General and comparative endocrinology

authors： Barton CL,Shaw C,Halton DW,Thim L

更新日期：1994-02-01 00:00:00

abstract：:The role of ovarian hormones in the expression of parental behavior and in the regulation of LH secretion was investigated in incubating commercial meat-type hens. After ovariectomy, incubating hens continued to incubate eggs normally and brooded day-old chicks given to replace eggs, in a manner similar to sham-ovarie...

journal_title：General and comparative endocrinology

authors： Lea RW,Richard-Yris MA,Sharp PJ

更新日期：1996-01-01 00:00:00

abstract：:Changes in plasma cortisol and glucose concentration were studied in carp during acclimation from fresh water (FW) to 1.5% salt water and vice versa. There was an increase in cortisol and glucose concentration during acclimation from FW to salt water which lasted for several days. Reacclimation to FW did not cause cle...

journal_title：General and comparative endocrinology

authors： Abo Hegab S,Hanke W

更新日期：1984-06-01 00:00:00

abstract：:Food abundance is closely associated with reproductive readiness in vertebrates. Food scarcity can activate the hypothalamo-pituitary-adrenal axis, decrease sex steroid secretion, and dampen reproductive behavior. However, the mechanisms underlying these transient effects are unclear. Gonadotropin inhibitory hormone (...

journal_title：General and comparative endocrinology

authors： Lynn SE,Perfito N,Guardado D,Bentley GE

更新日期：2015-05-01 00:00:00

abstract：:Plasma concentrations of stress hormones [adrenaline (ADR), noradrenaline (NR)], lactate, glucose and CO2 were monitored during peak nesting period (May-October) at different phases of nesting in the green turtle, Chelonia mydas. These include, emergence from sea, excavating body and nest chambers, oviposition, coveri...

journal_title：General and comparative endocrinology

authors： Alkindi AY,Al-Habsi AA,Mahmoud IY

更新日期：2008-02-01 00:00:00

abstract：:The developmental sequence of markers for hematopoietic, hormone-producing, and folliculo-stellate cells in the chicken adenohypophysis is described using immunohistochemical staining techniques. Hematopoietic cells are detected in cryosections of the adenohypophysis starting from 10- or 12-day embryos, using chicken-...

journal_title：General and comparative endocrinology

authors： Allaerts W,Boonstra-Blom AG,Peeters K,Janse EM,Berghman LR,Jeurissen SH

更新日期：1999-05-01 00:00:00

abstract：:Three experiments were performed to determine the role of juvenile hormone (JH) in worker reproduction in queenless colonies of honey bees. In Experiment 1, egg-laying workers had low hemolymph titers of JH, as did bees engaged in brood care, while foragers had significantly higher titers. Experiment 2 confirmed these...

journal_title：General and comparative endocrinology

authors： Robinson GE,Strambi C,Strambi A,Huang ZY

更新日期：1992-09-01 00:00:00

abstract：:This study was designed to examine the relationship among ovulation rate, inhibin alpha-subunit gene expression, and plasma immunoreactive inhibin levels between hens laying at a high ovulation rate and hens laying at a low ovulation rate. A porcine inhibin alpha-subunit cDNA was used to examine the expression of inhi...

journal_title：General and comparative endocrinology

authors： Wang SY,Johnson PA

更新日期：1993-07-01 00:00:00

abstract：:Vertebrate eggs are surrounded by an extracellular glycoprotein coat termed zona pellucida (ZP). Integrity of ZP is critical for a correct embryo development. Two zona pellucida protein genes (zpb and zpc) from European eel were characterized, specific qPCR assays developed and their expression in immature males and f...

journal_title：General and comparative endocrinology

authors： Mazzeo I,Peñaranda DS,Gallego V,Hildahl J,Nourizadeh-Lillabadi R,Asturiano JF,Pérez L,Weltzien FA

更新日期：2012-09-01 00:00:00

abstract：:In gravid female goldfish held at 10-12 degrees, a single injection of des Gly10,[D-Ala6]luteinizing hormone-releasing hormone ethylamide (LHRH-A), or 2 injections of LHRH-A given 12 hr apart, increased serum gonadotropin (GtH) concentrations, but did not stimulate germinal vesicle migration or ovulation. Injection of...

journal_title：General and comparative endocrinology

authors： Chang JP,Peter RE

更新日期：1983-10-01 00:00:00

abstract：:A technique is described for the measurement of cytoplasmic free calcium concentration ([Ca2+]c) in a suspension of goby intestinal epithelial cells using the fluorescent probe quin2. For 18 cell suspensions, [Ca2+]c was determined to be 142 +/- 14 nM. The caudal neurosecretory peptide urotensin II at 10(-7) to 10(-6)...

journal_title：General and comparative endocrinology

authors： Loretz CA,Assad JA

更新日期：1986-12-01 00:00:00

abstract：:The binding characteristics of sex steroid binding protein (SBP) were investigated in vitellogenic and nonreproductive female rainbow trout (Oncorhynchus mykiss), black bream (Acanthopagrus butcheri), and greenback flounder (Rhombosolea tapirina). The binding capacity of rainbow trout and black bream SBP was significa...

journal_title：General and comparative endocrinology

authors： Hobby AC,Geraghty DP,Pankhurst NW

更新日期：2000-12-01 00:00:00

abstract：:The effects of somatostatin-14 (SS-14) and salmon somatostatin-25 (sSS-25) on hepatic glycogenolysis were studied by incubating rainbow trout liver pieces in vitro. Glycogen content in untreated liver pieces cultured for 3 and 5 hr was 28.6 +/- 7.6 mg/g fresh wt. and 21.5 +/- 6.6 U, respectively. Treatment of liver pi...

journal_title：General and comparative endocrinology

authors： Eilertson CD,O'Connor PK,Sheridan MA

更新日期：1991-05-01 00:00:00

abstract：:Dopamine (DA) has a pivotal role in avian prolactin (PRL) secretion, acting centrally through D(1) DA receptors to stimulate PRL secretion by operating through vasoactive intestinal peptide (VIP). DA also inhibits PRL secretion by activating D(2) DA receptors at the pituitary level. This study was designed to investig...

journal_title：General and comparative endocrinology

authors： Sartsoongnoen N,Kosonsiriluk S,Prakobsaeng N,Songserm T,Rozenboim I,Halawani ME,Chaiseha Y

更新日期：2008-10-01 00:00:00

abstract：:A protein with insulin-like effects was isolated from the hepatopancreas of the lobster Panulirus argus following a classic method for mammalian insulin purification from the pancreas. After acid-alcoholic extraction and ethanol-ether precipitation followed by molecular filtration chromatography, a protein with an app...

journal_title：General and comparative endocrinology

authors： Gallardo N,Carrillo O,Moltó E,Deás M,González-Suárez R,Carrascosa JM,Ros M,Andrés A

更新日期：2003-05-01 00:00:00

abstract：:This study investigated the role of gonadotrophin and steroids in the induction of in vitro oocyte maturation in dab (Limanda limanda) and plaice (Pleuronectes platessa), two marine flatfish (Pleuronectiformes) in which the oocytes mature and ovulate in groups (or batches). Clusters of folliculated oocytes were incuba...

journal_title：General and comparative endocrinology

authors： Canario AV,Scott AP

更新日期：1990-02-01 00:00:00

abstract：:In dairy cows, heat stress depresses appetite, leading to decreased food intake, a negative energy balance, and modifies ghrelin levels. Ghrelin is a gut-brain peptide with two major forms: acylated, with an O-n-octanoylated serine in position 3, and nonacylated. To date, the effect of heat stress and estrous cycle on...

journal_title：General and comparative endocrinology

authors： Honig H,Ofer L,Elbaz M,Kaim M,Shinder D,Gershon E

更新日期：2016-09-01 00:00:00

abstract：:The development and dynamics of TSH and GTH cells were studied immunohisto- and immunocytochemically in the salamander Hynobius retardatus, which had been reported to show neoteny in a specific environment and a precocious development and maturation of testis in goitrogen-treated larvae. Pituitary glands from normally...

journal_title：General and comparative endocrinology

authors： Yamaguchi M,Tanaka S,Wakahara M

更新日期：1996-12-01 00:00:00

abstract：:The expression of the preproglucagon gene in vertebrates is markedly species- and tissue-dependent. Three peptides derived from the posttranslational processing of preproglucagon were isolated from an extract of the pancreas of the urodele Amphiuma tridactylum (threetoed amphiuma). The primary structures of the peptid...

journal_title：General and comparative endocrinology

authors： Cavanaugh ES,Nielsen PF,Conlon JM

更新日期：1996-01-01 00:00:00

abstract：:Estrogen signalling is critical for ovarian differentiation in reptiles with temperature-dependent sex determination (TSD). To elucidate the involvement of estrogen in this process, adrenal-kidney-gonadal (AKG) expression of estrogen receptor (ERα) was studied at female-producing temperature (FPT) in the developing em...

journal_title：General and comparative endocrinology

authors： Inamdar LS,Khodnapur BS,Nindi RS,Dasari S,Seshagiri PB

更新日期：2015-09-01 00:00:00

abstract：:The binding of 125I-labeled ovine prolactin (oPRL) to membrane preparations of several tissues from the male green frog, Rana esculenta, collected during the year is reported. PRL binding to kidney fractions was generally high (range 5-45%). A maximum was observed in the month of October, whereas the lowest value was ...

journal_title：General and comparative endocrinology

authors： d'Istria M,Fasano S,Delrio G

更新日期：1987-10-01 00:00:00

abstract：:Many marine invertebrate larvae undergo a dramatic morphological and physiological transition from a planktonic larva to a benthic juvenile. The mechanisms of this metamorphosis in bivalves are mainly unknown. The recent identification in bivalves of a thyroid hormone receptor (TR) gene raises the possibility that as ...

journal_title：General and comparative endocrinology

authors： Li YF,Cheng YL,Chen K,Cheng ZY,Zhu X,C R Cardoso J,Liang X,Zhu YT,Power DM,Yang JL

更新日期：2020-02-01 00:00:00

abstract：:The oocytes of the freshwater catfish Heteropneustes fossilis hydrate during hormone-induced meiotic maturation. To investigate if this process may be mediated by aquaporins (AQPs), as it occurs in marine fish producing highly hydrated eggs, the cloning of ovarian AQPs in catfish was carried out. Using degenerate prim...

journal_title：General and comparative endocrinology

authors： Chaube R,Chauvigné F,Tingaud-Sequeira A,Joy KP,Acharjee A,Singh V,Cerdà J

更新日期：2011-01-01 00:00:00

abstract：:Songbirds possess a specialized network of brain nuclei mediating song learning and production, the song system. In many species, the nuclei in this circuit are larger in volume in males housed on long photoperiods than in males housed on short photoperiods. Exposure to long days initially leads to increases in circul...

journal_title：General and comparative endocrinology

authors： Bernard DJ,Ball GF

更新日期：1997-02-01 00:00:00

abstract：:A clone encoding thyroid hormone receptor-beta (TR-beta) was isolated from a sea bream (Sparus aurata) ovary cDNA library. Sea bream (sb)TR-beta is closely related to its counterparts from other vertebrates and, like them, preferentially binds T3 rather than T4. However, the putative sbTR-beta protein contains a nine-...

journal_title：General and comparative endocrinology

authors： Nowell MA,Power DM,Canario AV,Llewellyn L,Sweeney GE

更新日期：2001-07-01 00:00:00

abstract：:The investigation of calcitonin-like immunoreactivity performed in whole extracts of the terrestrial crustacean Orchestia cavimana using radioimmunoassay revealed large amounts of these peptides varying in concentration according to the stages of the molt cycle. Their level is maximum at the time of the exuviation. Th...

journal_title：General and comparative endocrinology

authors： Graf F,Fouchereau-Peron M,Van-Wormhoudt A,Meyran JC

更新日期：1989-01-01 00:00:00

abstract：:The melanotrope cell in the amphibian pituitary pars intermedia is a model to study fundamental aspects of neuroendocrine integration. They release alpha-melanophore-stimulating hormone (alphaMSH), under the control of a large number of neurochemical signals derived from various brain centers. In Xenopus laevis, most ...

journal_title：General and comparative endocrinology

authors： van Wijk DC,Meijer KH,Roubos EW

更新日期：2010-09-01 00:00:00