Download or read book Carp and Mono Sex Nile Tilapia Polyculture in a Cemented Tank written by Saurav Lamichhane and published by GRIN Verlag. This book was released on 2021-01-26 with total page 63 pages. Available in PDF, EPUB and Kindle. Book excerpt: Bachelor Thesis from the year 2020 in the subject Biology - Miscellaneous, , language: English, abstract: Carp polyculture is the most common, popular, and successful aquaculture system in Nepal. Including mono-sex Nile tilapia in carp polyculture could enhance fish productivity. This present LEE work was conducted at the Fish hatchery complex of Fisheries Program, Agriculture and Forestry University, Rampur, Chitwan, in a cemented tank of area 25 m2 for 26 days to study the carp and mono-sex Nile tilapia in a polyculture system. The pond was fertilized using urea and DAP at the rate of 4,7 g/m2/week and 3.5 g/m2/week respectively. Fishes except Grass carp were fed twice daily with the pellet made from mustard oil cake and rice bran mixed at a 1:1 ratio at the rate of 5% BW. Grass carp were fed with duckweed at a rate of 50% BW twice a day from 7:30 am to 8 am and 1:30 pm to 2 pm. Water quality parameters i.e., water temperature, transparency, water depth, dissolved oxygen, and pH and were monitored daily while total alkalinity was monitored weekly. Sampling of fish was done fortnightly to check fish growth and adjust feed quantity. All the water quality parameters were within the optimal range of fish production except for DO which was very high during the afternoon. The extrapolated GFY and NFY were 14.5 t/ha/yr and 9.6 t/ha/yr, respectively. The overall survival of fish was 87% and AFCR was 1.4. The total variable cost and the production cost was NRs. 220/kg. Fishes were transferred to the Aquaculture farm, assuming the selling rate NRs. 300/kg. This makes the total gross return was of NRs. 875, making a total net profit of NRs. 327. The B: C ratio was 1.59. From this LEE work, it was concluded that carp and mono-sex Nile tilapia polyculture is a reliable and profitable venture to carry out.
Download or read book A Retrospective Review of Carp Polyculture in Nepal written by Saurav Lamichhane and published by GRIN Verlag. This book was released on 2021-05-20 with total page 10 pages. Available in PDF, EPUB and Kindle. Book excerpt: Academic Paper from the year 2021 in the subject Agrarian Studies, grade: 3.84, , language: English, abstract: This paper is a retrospective review of Carp Polyculture in Nepal. Polyculture is an art and science of growing two or more compatible fish species in a pond to maximize production by taking advantage of different spatial distribution and feeding habits. Polyculture concepts rely on the complete utilization of various spatial niches and trophic of a pond to acquire a maximum production per unit area. Carp polyculture is the most common, popular, and successful aquaculture system in Nepal. Carp polyculture is the major aquaculture system contributing to more than 90% of total aquaculture production in Nepal. In 2018/19, total fish production, aquaculture, and productivity were 91,832 t, 70,832 t, and 4.92 t/ha, respectively, which is insufficient to fulfill the growing demand for fish in Nepal. Therefore, it is essential to increase production and productivity.
Download or read book Tilapia in Intensive Co culture written by Peter W. Perschbacher and published by John Wiley & Sons. This book was released on 2017-02-13 with total page 380 pages. Available in PDF, EPUB and Kindle. Book excerpt: Intensive tilapia co-culture is the commercial production of various species of tilapia in conjunction with one or more other marketable species. Tilapia are attractive as a co-cultured fish because of their potential to improve water quality, especially in penaeid shrimp ponds, by consuming plankton and detritus and by altering pathogenic bacterial populations while increasing marketable production. Following introductory chapters covering ecological aspects of co-culture, tilapia feeding habits, historical use, and new models, Tilapia in Intensive Co-Culture is divided into co-culture in freshwater and marine environments. Co-culture core information is presented on Vibrio control, high-rate aquaculture processes, aquaponics, tilapia nutrient profile, and tilapia niche economics and marketing in the U.S, and with carp, catfish, freshwater and marine shrimp in the Americas, the Middle East, and Asia. Tilapia in Intensive Co-Culture is the latest book in the prestigious World Aquaculture Society (WAS) Series, published for WAS by Wiley Blackwell. It will be of great use and interest to researchers, producers, investors and policy makers considering tilapia co-culture in terms of environmental and economic sustainability.
Download or read book Sahar and Mixed Sex Nile Tilapia in Polyculture written by Kamala Gharti and published by LAP Lambert Academic Publishing. This book was released on 2011-04 with total page 100 pages. Available in PDF, EPUB and Kindle. Book excerpt: Sahar (Tor putitora), king of the Himalayan fishes, is an economically high valued fish of Nepal & is the most popular & largest riverine sport fish. Similarly, Nile tilapia (Oreochromis niloticus) is an important fresh water aquaculture species around the world & can be an ideal species for rural aquaculture in Nepal too if an appropriate culture technique is developed. In this context, this study attempts to look after the effect of stocking density of Sahar on growth & production of these two species; & Sahar's relative efficiency on recruitment control of mixed sex Nile Tilapia as well, so that commercially viable culture plan can be developed. Descriptive analysis & linear regression model are used to measure these effects & describe the data. The result showed 1:33 Sahar to Nile tilapia ratio to be appropriate for fish growth & production while 1:16 Sahar to Nile tilapia ratio revealed the best for recruitment control of tilapia & seed production. This book, as it basically talks on co-cultural practices of Sahar with Nile tilapia, would be of help especially to the professionals in Aquaculture & anyone else with allied interest.
Download or read book Tilapia Culture written by Abdel-Fattah M. El-Sayed and published by CABI. This book was released on 2006 with total page 295 pages. Available in PDF, EPUB and Kindle. Book excerpt: Tilapia culture is currently practised in 95 countries all over the world and the number is expected to increase. This book discusses in detail the principles and practices of tilapia culture in the world. It covers all the vital issues of farmed tilapia including: the biology, environmental requirements, semi-intensive culture, intensive culture systems, feed and feeding, reproduction and breeding, spawning and larval rearing, stress and diseases, harvesting and marketing and the role of tilapia culture in rural development. It also highlights and presents the experiences of leading countries in tilapia culture.
Download or read book The Third International Symposium on Tilapia in Aquaculture written by Roger S. V. Pullin and published by WorldFish. This book was released on 1996-01-01 with total page 586 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Tilapia Aquaculture in the Americas written by Barry A. Costa-Pierce and published by . This book was released on 2000 with total page 284 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Culture of Fish in Rice Fields written by Matthias Halwart and published by WorldFish. This book was released on 2004 with total page 84 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Tilapias Biology and Exploitation written by M.C.M Beveridge and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 517 pages. Available in PDF, EPUB and Kindle. Book excerpt: Referred to in the Bible, pictured on the wall-friezes of ancient Egyptian tombs, and a subject of fascination for generations of scientists, the tilapias (Cichlidae: Tilapiini) have featured in the diet and culture of humankind for thousands of years. The present century has seen their spread from Africa throughout the tropics and sub-tropics, largely for food and fisheries purposes. This book attempts to pull together our knowledge of this important group - their biology and fisheries and aquaculture - in a single volume, something that has not been done comprehensively for nearly two decades. A succession of chapters by acknowledged authorities covers evolution, phylogenetic relationships and biogeography, reproductive biology, mating systems and parental care, diet, feeding and digestive physiology, environmental physiology and energetics, the role of tilapias in ecosystems, population dynamics and management, genetics, seed production, nutrition, farming, economics and marketing. The book is aimed at biologists, fisheries scientists, aquaculturists, and all interested in aquatic ecology.
Download or read book Aquaculture Pond Fertilization written by Charles C. Mischke and published by John Wiley & Sons. This book was released on 2012-04-12 with total page 312 pages. Available in PDF, EPUB and Kindle. Book excerpt: Ponds are a primary production system to a wide variety of freshwater fish species. Each species have specific and unique nutrient needs and successful pond fertilization is critical to a successful aquaculture enterprise. Aquaculture Pond Fertilization: Impacts of Nutrient Input on Production provides state-of-the-art information for successful fertilization strategies for a broad range of pond-raised species. Aquaculture Pond Fertilization attempts to rectify the seemingly contradictory nutrient recommendations by clearly defining the goals of specific types of aquaculture. Chapters are divided into three sections: The first reviews basic concepts in fertilization applicable to all pond-based production. The second looks at specific nutrient management approaches. The third and final section of chapters looks specifically at key freshwater pond species ranging from tilapia to perch and discusses specific fertilization needs for the successful rearing of these in-demand fish. Looking across species with chapters contributed by leaders in the field Aquaculture Pond Fertilization provides succinct single-volume coverage of an oft-neglected, but vitally important topic in aquaculture production.
Download or read book A Hatchery Manual for the Common Chinese and Indian Major Carps written by V. G. Jhingran and published by WorldFish. This book was released on 1985 with total page 203 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Philippine Tilapia Economics written by Ian R. Smith and published by WorldFish. This book was released on 1985-01-01 with total page 268 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Dynamics of Pond Aquaculture written by Hillary S. Egna and published by CRC Press. This book was released on 2017-12-14 with total page 476 pages. Available in PDF, EPUB and Kindle. Book excerpt: The culmination of over a decade's worth of research by the Pond Dynamics/Aquaculture Collaborative Research Support Program (CRSP), Dynamics of Pond Aquaculture not only explains the physical, chemical, and biological processes that interact in pond culture systems, but also presents real-world research findings and considers the people who depend on these systems. This book uses data from CRSP field research sites in East Africa, Southeast Asia, Central America, and North America to present a complete picture of the pond system and the environment in which it exists. A thorough study of the principles and practices of aquaculture, the book reflects the state of the art in pond aquaculture and incorporates recent advances that have changed the science in the last decade or so. It provides a thorough review of the many methods, techniques, and ideas that comprise this complex and fascinating area of study.
Download or read book Freshwater Fish Pond Culture and Management written by Marilyn Chakroff and published by . This book was released on 1984 with total page 210 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Multivariate Methods in Aquaculture Research written by Mark Prein and published by WorldFish. This book was released on 1993 with total page 222 pages. Available in PDF, EPUB and Kindle. Book excerpt: Papers in this book discuss the emphasis on tilapia, modelling of pond aquaculture, exploratory and confirmatory methods for multivariate analysis, the relationships between multiple regression and analysis of variance and the rationale for sharing and analyzing "old", public domain data, all with emphasis on tropical/subtropical aquaculture systems.
Download or read book Small scale Aquaponic Food Production written by Christopher Somerville and published by Fao. This book was released on 2015 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Download or read book Tilapia Feeds and Feeding written by Kim Jauncey and published by . This book was released on 1998 with total page 240 pages. Available in PDF, EPUB and Kindle. Book excerpt:
