Research and development in agriculture is a very relevant topic in today’s society, especially given the evolution of land ownership structures and resources exploitation. These transformations have paved the way for new approaches in the allocation and management of agricultural systems. Agricultural Management Strategies in a Changing Economy brings together emergent research and best practices in the area of agricultural management, policy, and structures. Highlighting theoretical concepts and empirical research, this book will be an all-encompassing reference source for professionals, researchers, academicians, practitioners, and students in the field of agricultural economics and sustainable development, as well as in related disciplines.

In aquaculture, the provision of high quality aquafeeds that satisfy the nutritional requirements of the culture species and optimize growth are a prerequisite to improving production yields, lowering production costs, and improving economic returns to farmers. Under semi-intensive and intensive carp and trout culture, aquafeed costs usually account for the highest single production cost, typically accounting for 50 – 60 percent of total production costs. The aquafeeds available to farmers vary widely with respect to quality, nutritional value and cost. Depending on the feed type, production system and farmer preferences, there are multiple feed management strategies that can be adopted by farmers. In order to optimise feed use and minimise feed production costs, it is essential that farmers select appropriate feeds and optimise their on farm feed management practices. These guidelines are designed to provide farmers with practical guidance on how to select feeds and to optimise their use by implementing appropriate on-farm feed management practices. The guidelines provide an introduction to fish nutrition with a focus on the dietary nutritional requirements of commercially cultured carps and trout. The types of aquafeeds (live feeds, supplementary, farm-made and commercially manufactured feeds), their composition and nutritional value, manufacture and use are discussed. On-farm feed management practices focus on feeding methods, feed storage, and methods to optimise feed consumption (calculating feed rations, feeding frequency, assessing appetite and the feeding response).

This document provides technical information on broodstock management and identifies the main problems and challenges for the application of modern techniques for breeding management of the broodstock of common carp and Chinese herbivorous fish in the Central Asia and the Caucuses.

The Sixth International Carp Conference was organized in Szarvas, Hungary, on 31 August–1 September 2023. The conference was attended by 114 participants from 14 countries, representing a range of carp value chain stakeholders. The conference aimed to strengthen the “carp segment” within European aquaculture, improve the image of carp pond aquaculture as common European heritage, and to explore the opportunities for carp within “blue aquaculture”. The conference also aimed to inform carp producers about the latest research findings and European policies. The Sixth International Carp Conference approved the “Szarvas Declaration”. The declaration recognizes the contribution of carp pond aquaculture to sustainable and healthy food production, its role in maintaining and protecting complex socio-economic and environmental values, and that carp farming is a unique segment within European aquaculture. To increase carp production in Europe, policy and decision makers are urged to simplify administrative procedures, provide access to water and suitable locations for aquaculture, and arrange for compensation of damage to sustainable fish farming caused by cormorants and otters. Innovation is necessary for the sub-sector to maintain its economic viability and to attract youth to a career in aquaculture.

Following a short introduction to the species and its closest commercially viable related species, namely pirapatinga (Piaractus brachypomus) and pacu (Piaractus mesopotamicus), this field guide provides practical information on the culture and reproduction of tambaqui (Colossoma macropomum). As a field guide it aims to support the understanding and dissemination of applicable technologies for the culture and reproduction of tambaqui, i.e. what should be done – as well as when and how it should be done – in order to achieve success in the artificial propagation as well as the fingerling and table fish production stages. The concise technical descriptions in this guide are accompanied by self-explanatory illustrations and a reader-friendly glossary of technical terms, which is important for tambaqui aquaculture farmers.

Aquatic Food Security explores a range of issues related to this subject using global examples to illustrate both strengths and weaknesses within the existing aquatic food supply chain. This is already an area of vital importance and it will increase in importance as the aquaculture industry grows for the foreseeable future. The book covers topics such as the role of intensification in global aquaculture production, the importance of nutrition and selective breeding, diseases and public health considerations, the role of markets and of processing and retail sectors and quality issues in our global seafood. 5m Books

This field guide provides practical information on the field monitoring of the physical, chemical and biological properties of inland waters exploited by fisheries and aquaculture. After introducing the concept and topics, it discusses the qualities of inland waters in detail. Water properties are grouped by chapter, based on abiotic or biotic factor, or indeed both. Chapters and sections are supported by illustrations and practical explanations of how to discover, understand and solve water-quality-related problems. The practical guides presented at the end of each chapter discuss the different water properties important for fisheries and pond fish culture. As climate change is a problem of increasing importance, an additional chapter on climate and climate change implications, together with the application of meteorology to inland fisheries and aquaculture, is also included. The annexes provide a guide to identifying water types and the main organisms which live in them. Annex 4 systematically presents equipment, kits and instruments which could be used to check the physical, chemical and biological properties of inland waters used for fisheries and aquaculture. This richly illustrated guide also includes a glossary where simple and clear definitions and explanations, together with substantial science-based background information, can be found. Terms included in the glossary are asterisked and italicized.