Download or read book Reproductive Performance of Channel Catfish Ictalurus Punctatus Broodstock Fed Four Experimental Diets written by Shengjie Wu and published by . This book was released on 1997 with total page 142 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Effect of Broodstock Feeds on Reproductive Performance of Channel Catfish Ictalurus Punctatus written by Carlos Alberto Aceituno and published by . This book was released on 1993 with total page 174 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Growth of Channel Catfish Ictalurus Punctatus Rafinesque Fed Artificial Diets in Ponds Near Corvallis Oregon written by Plodprasop Suraswadi and published by . This book was released on 1970 with total page 144 pages. Available in PDF, EPUB and Kindle. Book excerpt: The experiment was conducted at the Soap Creek farm ponds near Corvallis, Oregon. Oregon Moist Pellet and Purina Trout Chow at three different rates of feeding for each diet were used to feed fingerling channel catfish stocked at the rate of 1,000 per acre. A complete random design and Fisher's least significant differences tests of the means were employed to compare the growths of fish from six treatments which were sampled at three separate times. The growth rates of fish from all treatments were quite similar and the differences of the mean length and weight of fish from each period of rearing were not consistent, which suggests that their growth rate was not dependent upon the diets or the feeding rate but rather upon some factor such as temperature. The standard deviations of the mean weights of fish were extremely high, which indicates that not all fish relied on the supplemental foods. Positive values of the amount of skewness in the weight frequency distributions indicates that the majority of fish were small. The mean conversion factors for both diets at any feeding level were quite similar, which suggests that the fish did not respond well to an increase in the amount of food available. And since the fish in this experiment did not rely completely on the artificial diets, the conversion factors are of little value from a nutritional standpoint. The production of fish in this experiment was in the neighborhood of 66 kg. per surface acre over a period of 151 days. This figures indicates that rearing channel catfish with supplementary feeding in the Willamette Valley might hold promise.
Download or read book Vitamins Essential for Growth of Channel Catfish written by Harry K. Dupree and published by . This book was released on 1966 with total page 12 pages. Available in PDF, EPUB and Kindle. Book excerpt: Symptoms were identified in channel catfish fed diets deficient in the water-soluble vitamins pyridoxine, pantothenic acid. riboflavin, thiamine, folic acid, nicotinic acid, B-12, or Choline. Fat-soluble vitamin A and vitamin K deficiency systems were observed after feeding diets which contained beta-carotene and 4.0 milligrams of menadione (synthetic vitamin K) per 100 grams of food (dry weight). These deficiencies were eliminated by substituting vitamin A palmitate for beta-carotene and doubling the content of menadione. No dietary need was observed for the water-soluble vitamins biotin, inositol, ascorbic acid, and para-aminobenzoic acid.
Download or read book Larval Fish Nutrition written by G. Joan Holt and published by John Wiley & Sons. This book was released on 2011-02-25 with total page 446 pages. Available in PDF, EPUB and Kindle. Book excerpt: Nutrition is particularly important in the healthy development of fish during their early-life stages. Understanding the unique nutritional needs of larval fish can improve the efficiency and quality of fish reared in a culture setting. Larval Fish Nutrition comprehensively explores the nutritional requirements, developmental physiology, and feeding and weaning strategies that will allow aquaculture researchers and professionals to develop and implement improved culture practices. Larval Fish Nutrition is logically divided into three sections. The first section looks at the role of specific nutrient requirements in the healthy digestive development of fish. The second section looks at the impacts if nutritional physiology on fish through several early-life stages. The final section looks at feeding behaviors and the benefits and drawbacks to both live feed and microparticulate diets in developing fish. Written by a team of leading global researchers, Larval Fish Nutrition will be an indispensible resource for aquaculture researchers, professionals, and advanced students. Key Features: Reviews the latest research on larval fish nutritional requirements, developmental physiology, and feeding and weaning strategies Extensively covers nutritional needs of various early-life stages in fish development Weighs the benefits and drawbacks to both live feeds and microparticulate diets Written by a global team of experts in fish nutrition and physiology
Download or read book Rearing of Channel Catfish Ictalurus Punctatus Rafinesque and Brown Bullheads I Nebulosus Lesuer in Floating Cages in a Pond Near Corvallis Oregon written by James Robert Nielsen and published by . This book was released on 1972 with total page 130 pages. Available in PDF, EPUB and Kindle. Book excerpt: A study designed to evaluate the use of floating cages for rearing fingerling and subadult channel catfish (Ictalurus punctatus) and fingerling brown bullheads (I. nebulosus) on a commercial basis in Oregon's Willamette Valley was conducted at a pond seven miles north of Corvallis, Oregon, from May 23 to October 17, 1970. Fish were stocked in 1.4 m3 floating cages at the rate of 150 fish/cage (110 fish/m3) and fed either a dry, floating feed (Purina Trout Chow) or a moist, sinking feed (Oregon Moist Pellet). Channel catfish were fed 3.0% of body weight/day. Brown bullheads were fed either 3.0 or 4.5% of body weight/day. Water temperature in the experimental pond was above 21 C for approximately 90 days in 1970. A season of 160-210 days of water temperatures over 21 C is usually required to grow catfish from fingerlings to a commercially-usable size of 340-570 g in one season. The fingerling channel catfish had an average weight of 96.4 g and an average fork. length of 195.3 mm at the termination of the experiment. Yield at the end of the experiment averaged 11.8 kg/cage and food conversion ratios averaged 1.9:1. There were no differences among the cages of fingerlings in yield, conversion ratio, or average weight and fork length. There were more small fish in cages where the fingerlings were fed the sinking diet than in the cages where the floating diet was fed. This was probably due to the restricted feeding area required for the sinking diet (a metal tray with a surface area of 0.4 m2), which caused more competition among the fish fed the sinking diet than probably occurred among the fish fed the floating diet. Losses among the fingerling channel catfish averaged 17% of the fish in each cage. Handling was considered to be the chief factor of mortality. Twenty percent of the subadult channel catfish were grown to a commercially-usable size (340 g or more) by the end of their second growing season in Oregon. Yields for the subadults were 31.4 kg for the fish fed the sinking diet and 35.8 kg for the fish fed the floating diet. Conversion ratios were 1.5:1 for the floating diet and 1.8:l for the sinking diet. Losses averaged 4% of the fish in each cage, all of which were attributed to poisoning from tarichatoxin exuded from the skin of the rough-skinned newt (Taricha granulosa granulosa) that was common in the pond. Apparently, the catfish were poisoned when they attacked the newts and bit them. Ninety-five percent of the brown bullhead fingerlings died as a result of severe columnariasis outbreaks in May and June, following handling. Growth data obtained from brown bullheads collected from lakes and reservoirs in central and western Oregon showed that growth under natural conditions in these areas may be sufficient to enable this species of catfish to be used in low-intensity cultural operations. Yields resulting from the use of floating cages for rearing fingerling channel catfish were greater than those observed in previous experiments at the same ponds in which fingerling channel catfish were raised free in the ponds, both with and without artificial feeding. High-intensity culture of channel catfish in ponds in Oregon's Willamette Valley does not appear to be economically feasible. The factor limiting the growth of catfish in this area appears to be low water temperatures.
Download or read book The Effects of Density Multipass Water Use and Diet on Channel Catfish Cultured in Power Plant Recirculating Cooling Water written by John G. Woiwode and published by . This book was released on 1984 with total page 52 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Effects of Feeding Regime on Reproductive Performance of Female Channel Catfish in Ponds written by Alfredo C. Santiago and published by . This book was released on 1979 with total page 148 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Growth Performance and Disease Resistance of Channel Catfish Ictalurus Punctatus Fed Diets Containing Natural Gossypol and Gossypol acetic Acid written by Mediha Yildirim-Aksoy and published by . This book was released on 2003 with total page 282 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Biology and Culture of Channel Catfish written by C.S. Tucker and published by Elsevier. This book was released on 2004-09-30 with total page 686 pages. Available in PDF, EPUB and Kindle. Book excerpt: The history of channel catfish farming in the United States serves as a model for the development of pond-based aquaculture industries worldwide. Channel catfish farming is the largest and economically most important aquaculture industry in the United States. In 2003, over 300,000 metric tons (662 million pounds) of channel catfish were processed, representing about half the total United States aquaculture production. Demand for farm-raised catfish is strong, with record processing years in 2002 and 2003. In 22 chapters written by active scientists in the field, Biology and Culture of Channel Catfish comprehensively synthesizes over 30 years of research on this American icon. Throughout the book, fundamental biological aspects of channel catfish are linked to practical culture techniques. Topics include: • Latest information on reproductive physiology, genetics, and breeding • Comprehensive treatment of catfish nutrition, feeds, and feeding practices • Water quality management and pond dynamics • In-depth review of immunology in channel catfish • Practical information on diseases and health management • Techniques for commercial culture, including innovative techniques such as raceways, recirculating systems, and partitioned aquaculture systems • Catfish economics and marketing • Exploration of environmental concerns, including recommended Best Management Practices
Download or read book Role of Dietary Ingredients on Fish Performance and Genes Associated with Appetite Growth Metabolism and Intestinal Inflammation in Channel Catfish Ictalurus Punctatus written by Julie C. Schroeter and published by . This book was released on 2015 with total page 164 pages. Available in PDF, EPUB and Kindle. Book excerpt: In commercial channel catfish production, feed costs are the largest variable expense. In recent years, the use of fishmeal in catfish feeds has raised sustainability and cost concerns, and as such, a notable amount of research has been dedicated to the exploration of alternatively-sourced ingredients for use in channel catfish diets. The present research evaluated the effects of alternatively-sourced dietary ingredients on production indices, gut health, and genes involved in the regulation of appetite, growth, metabolism, and intestinal inflammation. In Objective 1, 45 sets of oligo primers were designed based on sequences in the Genbank database. PCR products from primers designed using teleost sequences outside of the genus Ictaluridae were cloned, transformed, and sequenced to verify gene identity. The entire set of designed primers was then validated for use in real-time PCR and used to validate a high-throughput, microfluidic, dynamic, qPCR array for measuring gene expression in the previously mentioned pathways. Thresholds for efficiency were set at R2 ? 0.9 and 0.65 for quality, using a baseline correction and auto detectors for the Ct threshold method. Of the 45 genes analyzed using a Fluidigm qPCR System, eigth genes failed due to early or late amplification, low PCR efficiency, or a low quality score. Of the potential reference genes evaluated, ?-tubulin had the highest PCR efficiency (0.9989), a high quality score (0.92±0.03) acceptable Ct values. Based these results, 40 genes from four tissues (hypothalamus/pituitary, liver, stomach, proximal intestine) were evaluated in Objective 2 in response to three alternative dietary treatments, relative to a control diet, using the Fluidigm qPCR System. Changes in dietary formulations were primarily based on alternative protein feedstuffs, with the following feedstuffs as the distinguishing protein sources: (A) fish meal (control), (B) porcine meat and bone meal, (C) soybean meal, and (D) corn germ meal/cottonseed meal. All diets were isonitrogenous and isolipidic. Dietary treatments were fed to three tanks of 20 channel catfish each for a duration of 12 weeks. Differences in feed conversion ratio (FCR), specific growth rate, feed intake, body condition, weight gain, proximal intestine histology, and quantitative gene expression were analyzed. FCR was significantly (P
Download or read book Channel Catfish Culture written by Craig S. Tucker and published by Elsevier Publishing Company. This book was released on 1985 with total page 684 pages. Available in PDF, EPUB and Kindle. Book excerpt: The commercial culture of channel catfish in the south eastern part of the United States has grown at such an amazing rate in the last decade that more research efforts have been introduced to meet the need for additional technology. Although some of this research has been summarized within particular disciplines, there is no comprehensive treatise available that provides an overall summary of the current information available on the culture of this fish. This book has been written to try and cater for this need. However although researchers and commercial catfish producers will find much practical information in it, it is not intended to be only a fish culture manual. The material presented deals primarily with culture as practiced in the south eastern United States, but the principles should apply wherever this species is cultured.
Download or read book Masters Abstracts International written by and published by . This book was released on 1994 with total page 1192 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Fish Nutrition written by Ronald W. Hardy and published by Academic Press. This book was released on 2021-10-19 with total page 924 pages. Available in PDF, EPUB and Kindle. Book excerpt: Fish Nutrition, Fourth Edition is an up-to-date, authoritative presentation of all key elements of the nutrition of fish and crustaceans. As aquaculture is rapidly expanding, more than 200 herbivorous and carnivorous species occupy a diverse range of ecological niches, and have therefore evolved to utilize a wide array of food sources. This new edition highlights these differences and covers the complexity and challenges associated with fish nutrition, addressing nutrient requirements to produce high-quality, healthful and sustainable resources, the essential nutrients for fish species, including proteins and amino acids, vitamins, minerals and essential fatty acids, a feed quality assessment, and fish pathology. Led by a team of international experts, this edition provides readers with new information on the use of high-throughput technologies in fish nutrition research, the role of feeds on the community structure of the microbiome, and advances in essential nutrient requirements. Features expansive updates to the previous edition, including a new chapter dedicated to diet analysis and evaluation Addresses the roles of fish nutrition and feeds on sustainability and the environmental impacts of aquaculture Covers basic nutritional biochemistry and applied nutritional topics
Download or read book Effects of Temperature and Dietary Energy protein Ratio on Growth of Channel Catfish Ictalurus Punctatus written by Michael Paul Masser and published by . This book was released on 1986 with total page 224 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Aquatic Sciences and Fisheries Abstracts written by and published by . This book was released on 1995-05 with total page 814 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Feed Ingredients and Fertilizers for Farmed Aquatic Animals written by Albert G. J. Tacon and published by Food & Agriculture Organization of the UN (FAO). This book was released on 2009 with total page 224 pages. Available in PDF, EPUB and Kindle. Book excerpt: The main body of the document deals with the nutritional composition and usage of major feed ingredient sources in compound aquafeeds, as well as the use of fertilizers and manures in aquaculture operations.
