Catfish Breeding - A "Do-it-Yourself" Guide on Catfish Seed Production PDF Download
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Author: Anthony Adefarakan
Publisher: Anthony Adefarakan
ISBN:
Category : Technology & Engineering
Languages : en
Pages : 26
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Book Description
Many farmers have in times past fallen victim to procuring bad fish seeds, leading to failure as they either died or refused to grow. This could be attributed to bad parent stocks, poor water management, poor stocking density, poor feeding, etc. on the producers’ part. To solve this problem once and for all, fish farmers must start producing their fish seeds (with all the needed care) for effective production, and this is what this handbook offers. It is written so that the farmer interested in hatching their fish can do so without necessarily being monitored or supervised, hence the name “Do-It-Yourself” guide. The pictures used are deliberately included to make it easy to perceive the whole process. With this guide, you are fully armed for catfish seed production.
Author: Anthony Adefarakan
Publisher: Anthony Adefarakan
ISBN:
Category : Technology & Engineering
Languages : en
Pages : 26
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Book Description
Many farmers have in times past fallen victim to procuring bad fish seeds, leading to failure as they either died or refused to grow. This could be attributed to bad parent stocks, poor water management, poor stocking density, poor feeding, etc. on the producers’ part. To solve this problem once and for all, fish farmers must start producing their fish seeds (with all the needed care) for effective production, and this is what this handbook offers. It is written so that the farmer interested in hatching their fish can do so without necessarily being monitored or supervised, hence the name “Do-It-Yourself” guide. The pictures used are deliberately included to make it easy to perceive the whole process. With this guide, you are fully armed for catfish seed production.
Author: Nihar Ranjan Chattopadhyay
Publisher: Academic Press
ISBN: 012801847X
Category : Technology & Engineering
Languages : en
Pages : 376
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Book Description
Induced Fish Breeding: A Practical Guide for Hatcheries takes a successive approach to explaining the use of breeding technology with proven scientific methods. It provides real-life examples for the purpose of maximizing fish and seed production to support overall sustainability in aquaculture. It is a concise reference to understanding the latest developments in the field, useful for anyone who is involved in fisheries or hatchery management as well as researchers and students who need to understand the technology. A practice originally developed to produce quality seed in captivity, induced breeding has made great strides in fish populations for India. The book offers a practical and succinct overview—from existing methods and operations to recent trends and their impacts on aquaculture for the future. - Provides detailed information about empirical breeding practices like mixed spawning and indiscriminate hybridization - Presents the environmental and hormonal influence on maturation and spawning of fish with real-life fish breeding examples from around the world - Includes step-by-step scientific measures to help solve problems arising from common fish-farming mistakes - Provides real-life examples for the purpose of maximizing fish and seed production to support overall sustainability in aquaculture
Author: Anthony O Adefarakan
Publisher:
ISBN: 9781989969137
Category : Pets
Languages : en
Pages : 28
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Book Description
About the Book Many fish farmers have in times past fallen victim of procuring bad fish seeds, leading to failure as they either died or refused to grow. This could be attributed to bad parent stocks, poor water management, poor stocking density, poor feeding etc. on the producers' part except for those from farms with credibility which perform well and grow to good sizes. In solving this problem once and for all, it is necessary for fish farmers to start producing their own fish seeds (with all the needed care) for effective production, and this is what this handbook offers. It is written in such a way that the farmer who is interested in hatching their own fishes can do so without necessarily being monitored or supervised, the reason for the name "Do-It-Yourself" guide. The pictures used are deliberately included for easy perception of the whole process. With this guide at your disposal, you are fully armed for catfish seed production.
Author: Food and Agriculture Organization of the United Nations
Publisher: Food & Agriculture Org.
ISBN: 9789251058954
Category : Business & Economics
Languages : en
Pages : 670
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Book Description
This publication is presented in two parts.
Author: Gertjan de Graaf
Publisher: Conran Octopus
ISBN:
Category : Catfish fisheries
Languages : en
Pages : 84
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Book Description
The manual is based on the practical experiences of the authors on the artificial reproduction and pond rearing of the African catfish Clarias gariepinus within FAO field projects in the Central African Republic, the Republic of the Congo, Kenya and Nigeria. The manual is divided into five major sections dealing with: 1) general biology, including natural feeding habits and reproduction; 2) artificial reproduction, including induced propagation without and through hormone injection; 3) fry nursing in earthen ponds, including pond preparation, fertilization, feeding and management; 4) monoculture, including feeding methods; and 5) polyculture with Tilapia. In addition, information is provided concerning the economics of different fingerling and grow-out farming practices in Africa, and concerning diseases and hybridization.
Author: Christopher Somerville
Publisher: Fao
ISBN: 9789251085325
Category : Aquaponics
Languages : en
Pages : 0
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Book Description
This technical paper begins by introducing the concept of aquaponics, including a brief history of its development and its place within the larger category of soil-less culture and modern agriculture. It discusses the main theoretical concepts of aquaponics, including the nitrogen cycle and the nitrification process, the role of bacteria, and the concept of balancing an aquaponic unit. It then moves on to cover important considerations of water quality parameters, water testing, and water sourcing for aquaponics, as well as methods and theories of unit design, including the three main methods of aquaponic systems: media beds, nutrient film technique, and deep water culture. The publication discusses in detail the three groups of living organisms (bacteria, plants and fish) that make up the aquaponic ecosystem. It also presents management strategies and troubleshooting practices, as well as related topics, specifically highlighting local and sustainable sources of aquaponic inputs. The publication also includes nine appendixes that present other key topics: ideal conditions for common plants grown in aquaponics; chemical and biological controls of common pests and diseases including a compatible planting guide; common fish diseases and related symptoms, causes and remedies; tools to calculate the ammonia produced and biofiltration media required for a certain fish stocking density and amount of fish feed added; production of homemade fish feed; guidelines and considerations for establishing aquaponic units; a cost-benefit analysis of a small-scale, media bed aquaponic unit; a comprehensive guide to building small-scale versions of each of the three aquaponic methods; and a brief summary of this publication designed as a supplemental handout for outreach, extension and education.
Author: John E. Bardach
Publisher: John Wiley & Sons
ISBN: 0471048267
Category : Technology & Engineering
Languages : en
Pages : 902
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Book Description
Captive Seawater Fishes: Science and Technology Stephen Spotte "The book is clearly a labor of love, and one must admire the author's boundless enthusiasm and breadth of scholarship." —New Scientist A seamlessly clear treatise on the science and technology of maintaining seawater fishes for purposes of aquaculture and public exhibition. Captive Seawater Fishes is the first book to bring together in one volume the disciplines of seawater chemistry, process engineering, and fish physiology, behavior, nutrition, and health. Richly illustrating the interplay between living fishes and the chemical and sensory stimuli of their environment, the book details: chemical processes controlling carbonate stability in seawater; the effect of captivity on physiological processes; sensory processes of fishes, including vision, hearing, and electroreception; diseases of seawater fishes and treatment methods; and more. 1991 (0-471-54554-6) 976 pp. Surveys of Fisheries Resources Donald R. Gunderson The intensive exploitation of fisheries resources has heightened the reliance in the industry on statistical surveying as a means of monitoring the abundance and age composition of existing fish reserves. Here is the first comprehensive look at the unique challenges and problems of fisheries surveying. Covering everything from survey design, bottom trawl surveys, acoustic surveys, to egg and larval surveys and direct counts, as well as the assumptions and limitations surrounding each method, the book is an exhaustive, yet practical guide to designing accurate, cost-effective fisheries surveys. 1993 (0-471-54735-2) 256 pp. Aquatic Pollution: An Introductory Text, Second Edition Edward A. Laws Regarded as the most complete introduction available on the subject, Aquatic Pollution details the ecological principles and toxicological fundamentals behind the phenomenon as well as the latest information on the factors affecting our polluted aquatic environment. Featuring case studies and specific examples, the book systematically examines such problems as urban runoff, sewage disposal, thermal pollution, nutrient loading, industrial wastewater discharges, and oil pollution. The new Second Edition includes three new chapters on groundwater pollution. acid rain, and plastics in the sea, as well as updated and expanded information on eutrophication, pathogens in water supplies, radioactive waste disposal, toxic metals, and pesticide use. 1993 (0-471-58883-0) 611 pp.
Author: Carol Deppe
Publisher: Chelsea Green Publishing
ISBN: 1890132721
Category : Gardening
Languages : en
Pages : 386
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Book Description
"[Book title] is the definitive guide to plant breeding and seed saving for the serious home gardener and the small-scale farmer or commercial grower. Discover: how to breed for a wide range of different traits (flavor, size, shape, or color; cold or heat tolerance; pest and disease resistance; and regional adaptation); how to save seed and maintain varieties; how to conduct your own variety trials and other farm- or garden-based research; how to breed for performance under organic or sustainable growing methods."--Back cover.
Author: Trygve Gjedrem
Publisher: Springer Science & Business Media
ISBN: 9048127734
Category : Science
Languages : en
Pages : 221
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Book Description
The foundation of quantitative genetics theory was developed during the last century and facilitated many successful breeding programs for cultivated plants and t- restrial livestock. The results have been almost universally impressive, and today nearly all agricultural production utilises genetically improved seed and animals. The aquaculture industry can learn a great deal from these experiences, because the basic theory behind selective breeding is the same for all species. The ?rst published selection experiments in aquaculture started in 1920 s to improve disease resistance in ?sh, but it was not before the 1970 s that the ?rst family based breeding program was initiated for Atlantic salmon in Norway by AKVAFORSK. Unfortunately, the subsequent implementation of selective breeding on a wider scale in aquaculture has been slow, and despite the dramatic gains that have been demonstrated in a number of species, less than 10% of world aquaculture production is currently based on improved stocks. For the long-term sustainability of aquaculture production, there is an urgent need to develop and implement e- cient breeding programs for all species under commercial production. The ability for aquaculture to successfully meet the demands of an ever increasing human p- ulation, will rely on genetically improved stocks that utilise feed, water and land resources in an ef?cient way. Technological advances like genome sequences of aquaculture species, and advanced molecular methods means that there are new and exciting prospects for building on these well-established methods into the future.
Author: Pam Dawling
Publisher: New Society Publishers
ISBN: 1550925121
Category : Gardening
Languages : en
Pages : 459
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Book Description
Growing for 100 - the complete year-round guide for the small-scale market grower. Across North America, an agricultural renaissance is unfolding. A growing number of market gardeners are emerging to feed our appetite for organic, regional produce. But most of the available resources on food production are aimed at the backyard or hobby gardener who wants to supplement their family's diet with a few homegrown fruits and vegetables. Targeted at serious growers in every climate zone, Sustainable Market Farming is a comprehensive manual for small-scale farmers raising organic crops sustainably on a few acres. Informed by the author's extensive experience growing a wide variety of fresh, organic vegetables and fruit to feed the approximately one hundred members of Twin Oaks Community in central Virginia, this practical guide provides: Detailed profiles of a full range of crops, addressing sowing, cultivation, rotation, succession, common pests and diseases, and harvest and storage Information about new, efficient techniques, season extension, and disease resistant varieties Farm-specific business skills to help ensure a successful, profitable enterprise Whether you are a beginning market grower or an established enterprise seeking to improve your skills, Sustainable Market Farming is an invaluable resource and a timely book for the maturing local agriculture movement.
