Download or read book The Effects of the Soy Isoflavone Genistein on the Reproductive Development of Striped Bass Morone Saxatilis written by Sara Jane Pollack and published by . This book was released on 2001 with total page 162 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book North American Journal of Aquaculture written by and published by . This book was released on 2003 with total page 400 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Studies on the GnRH GtH System of Female Striped Bass Morone Saxatilis written by Colin Robert Steven and published by . This book was released on 1999 with total page 196 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Program for the Annual Meeting of the Society for the Study of Reproduction written by Society for the Study of Reproduction and published by . This book was released on 2000 with total page 1142 pages. Available in PDF, EPUB and Kindle. Book excerpt: Includes "Abstracts of papers presented at the annual meeting."

Download or read book Transgenerational Effects of Early Exposure to Soy Isoflavones on Reproductive Health and Bone Development in CD 1 Mice written by Elsa C. Dinsdale and published by . This book was released on 2011 with total page 248 pages. Available in PDF, EPUB and Kindle. Book excerpt: Previous studies showed that early exposure to soy isoflavones resulted in improved bone mineral density (BMD) and bone quality that resulted in stronger bones in CD-1 mice. This study investigated whether the benefits to bone health are transferred to second generation (F2) females and if there are any adverse effects on reproductive health. First generation (F1) female CD-1 mice received subcutaneous injections of the isoflavones daidzein (DAI) and genistein (GEN) or corn oil from postnatal day (PND) 1 to 10 or 21. F1 and F2 treated-females experienced earlier pubertal onset and lengthened anogenital distance but only F1 had reduced fertility, histological abnormalities in the uterus and ovaries, and altered estrous cycling. F2 had higher BMD and stronger bones at 4 months of age. In conclusion, early life exposure to soy isoflavones compromise reproductive function but confer a transgenerational benefit to bone development in CD-1 mice.

Download or read book The Soy Isoflavone Genistein as a Modulator of Intestinal Development written by An-Chain Chen and published by . This book was released on 2004 with total page 318 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Characterization of Compensatory Growth in Hybrid Striped Bass Morone Chrysops X Morone Saxatilis Hormones and Mechanisms written by and published by . This book was released on 2004 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Compensatory growth (CG) is a period of growth acceleration that exceeds normal rates after animals are alleviated of certain growth-stunting conditions. While the endocrine control of growth in fishes and other vertebrates is regulated primarily through the growth hormone (GH) D insulin-like growth factor (IGF) axis, the hormonal dynamics regulating accelerated (compensatory) phases of growth are poorly understood. We assessed whether CG responses could be induced in hybrid striped bass (HSB; Morone chrysops X Morone saxatilis) through feeding and/or temperature manipulation, and then examined whether components of the GH/IGF endocrine growth axis could be contributing to the response. We found that CG responses can be elicited in HSB following periods of 1) partial feed restriction, 2) complete feed restriction and 3) a combination of low water temperatures and complete feed restriction, with full catch-up growth being achieved in the latter. The most dramatic periods of CG were preceded by a catabolic state marked by body weight loss, hepatic steatosis, depressed hepatosomatic index values and an endocrine state of GH resistance. Upon alleviation of the growth-stunting condition, HSB displayed significant elevations in growth rate that exceeded controls by as much as 4 times. This CG response was accompanied by increases in feed intake (hyperphagia), improved feed conversion and a reversal of steatotsis and GH resistance. The onset of CG in feed manipulation studies was marked by significant elevations in total hepatic IGF-I mRNA and plasma IGF-I, indicating that elevated synthesis and secretion of the growth factor may mediate rapid growth responses. Strong correlations between systemic IGF-I and SGR suggest that circulating levels of IGF-I may serve as a biomarker of growth in HSB and perhaps other fishes. The 40kDa IGF binding protein (IGFBP) may also contribute to CG, since plasma levels increased in concordance with IGF-I and growth. Although little is.

Download or read book Growth Hormone and Prolactin producing Cells in the Pituitary Gland of Striped Bass Morone Saxatilis written by Liyue Huang and published by . This book was released on 1992 with total page 174 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Multiple Vitellogenin System of the Striped Bass Morone Saxatilis written by Valerie Nicole Williams and published by . This book was released on 2013 with total page 131 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Development of Microsatellite Loci for Discrimination Among Hatchery sustained and Wild Assemblages of Striped Bass Morone Saxatilis in the Roanoke River Basin and Albermarle Sound written by Angela K. Toombs and published by . This book was released on 2000 with total page 44 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Exploring Soy derived Alternatives to Fish Meal written by Patrick C. Blaufuss and published by . This book was released on 2010 with total page 59 pages. Available in PDF, EPUB and Kindle. Book excerpt: Many sources of protein have been investigated to reduce the use of fish meal (FM) in aquaculture feeds, including soybean meal (SBM). However, FM replacement in feeds for carnivorous species is limited by problems with feed intake, growth rate, and overall health associated with reduced digestibility and anti-nutritional factors found in SBM. However, soy processing strategies can reduce the effects of anti-nutritional factors and improve utilization. Therefore, we examined the possibility of further FM replacement in SBM maximized feeds for hybrid striped bass using refined soy products, soy protein concentrate (SPC) and soy protein isolate (SPI).

Download or read book Mitochondrial DNA Variation in Striped Bass Morone Saxatilis from the Rappahannock River Virginia written by Carol Furman and published by . This book was released on 1989 with total page 140 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Effect of Isoflavones and Estradiol 17 on Growth and Reproductive Function in Yellow Perch Perca Flavescens written by Kinarm Ko and published by . This book was released on 1997 with total page 194 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Evaluation of Various Dietary Supplements and Strategies to Enhance Growth and Disease Management of Hybrid Striped Bass Morone Chrysops X M Saxatilis written by Peng Li and published by . This book was released on 2006 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The US hybrid striped bass (Morone chrysops x M. saxatilis) industry has been negatively impacted by infectious diseases because there are very few approved drugs and vaccines. Therefore, a series of experiments was conducted to explore the potential use of various dietary supplements including autolyzed brewers yeast, the commercial prebiotic GroBiotic®-A, oligonucleotides and levamisole for improvement of hybrid striped bass growth, immunity and resistance to disease caused by various pathogenic bacteria. In two trials with brewers yeast, fish fed diets supplemented with yeast at 2% generally showed enhanced weight gain and feed efficiency compared with those fed a basal diet. Brewers yeast also positively influenced resistance to S. iniae infection. In addition, results of immune response assays demonstrated that brewers yeast can be administered for relatively long periods without causing immunosuppression. GroBiotic®-A (Grobiotic [superscript]TM AE) also resulted in significantly enhanced weight gain, innate immune responses and resistance of juvenile hybrid striped bass to S. iniae infection. An additional experiment with sub-adult fish showed significantly reduced mortality of fish fed a diet supplemented with GroBiotic®-A at 2% when subjected to an in-situ Mycobacterium marinum challenge. This is the first report of positive effects from dietary prebiotics for fish health management, although many fundamental questions should be pursued further. Dietary supplementation of a commercial oligonucleotide product (Ascogen P®) at 0.5% of the diet was shown to enhance resistance of hybrid striped bass against S. iniae infection and increased their neutrophil oxidative radical production. However, the effect on growth was marginal. Dietary levamisole supplementation at a low level (100 mg/kg) enhanced the growth and feed efficiency of juvenile hybrid striped bass. However, an elevated dosage(1000 mg/kg diet) strongly suppressed growth, feed intake and feed efficiency. Hypothesized beneficial influences, including antibody production and resistance to S.iniae and A. hydrophila were not substantiated. Although dietary levamisole increased fish macrophage respiratory burst, an in vitro study failed to show a direct effect on cultured macrophages. This suite of studies demonstrated the potential use of some dietary supplements to enhance hybrid striped bass production. Thus, immunonutrition represents a valuable strategy to apply in aquaculture.

Download or read book DNA Sequence Analysis and Characterization of Morone Saxatilis striped Bass Genomic Clone Containing the HoxB2 and HoxB3 Genes written by Jeffrey Borden McCallum and published by . This book was released on 1997 with total page 214 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Quantification of Fatty Acids Over the Gametogenic Cycle of Striped Bass Morone Saxatilis with Varying Dietary Levels of DHA EPA and AA written by Lisa Ann Dickey and published by . This book was released on 2000 with total page 152 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Evaluation of Amino Acid Supplementation of Soybean meal based Diets for Hybrid Striped Bass written by Lea Christine Savolainen and published by . This book was released on 2010 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Hybrid striped bass (Morone chrysops x M. saxatilis) aquaculture is a major commercial enterprise in the United States and internationally. Efforts to decrease diet costs and limit dependence on fishmeal, have led to the development of plant-based diets as an alternative aquafeed. Due to limiting concentrations of amino acids such as methionine, cystine, and taurine in plant meals such as soybean meal, supplementation of these plant-based diets with methionine or other sulfur amino acid compounds is typically required. Therefore, the current study was conducted to evaluate different amino acid supplements in soybean-meal-based diets for hybrid striped bass for possible refinement of diets and reduction of production costs. One feeding trial evaluated methionine hydroxy analog (MHA) and Mintrex® which is MHA containing chelated zinc relative to L-methionine. The second trial evaluated the effects of supplemental taurine or arginine on fish performance and potential health benefits. In the first feeding trial, a basal soybean-meal-based diet (56% soybean meal and 15% fishmeal) marginally deficient in total sulfur amino acids (TSSA) (1.10% methionine and cystine) was supplemented with either L-methionine, Mintrex® or MHA calcium salt and fed to triplicate groups of juvenile hybrid striped bass for 10 weeks. The different methionine supplements provided similar weight gain, feed efficiency ratio (FER) and protein efficiency ratio (PER) values that tended to be greater than observed in fish fed the basal diet. Mintrex® supplementation provided much higher plasma zinc concentrations compared to fish fed the other methionine supplements. In the second feeding trial, soybean-meal based diets which satisfied the requirement for TSAA were supplemented with either taurine or arginine at 1.5% of dry weight. Supplemental taurine or arginine did not provide any improvements in weight gain, FER, PER or survival compared to the basal diet. Thus, taurine or arginine supplementation of soybean-meal-based diets does not appear warranted. However, sulfur amino acid supplementation of plant-based diets is critical, and Mintrex® appears to be an effective supplement to meet the methionine and zinc needs of hybrid striped bass.