Aquaculture has become of the fastest growing segments of agriculture around the world, but until recently many people have been unaware of its existence. The practice of raising fish is centuries old with a rich history of techniques and scientific advances. The History of Aquaculture traces the development of fish farming from its ancient roots to the technologically advanced methods of today.
Aquaculture is the farming of aquatic organisms, principally fish, molluscs, crustaceans and marine algae. It has seen phenomenal worldwide growth in the past fifty years and many people view it as the best solution for the provision of high quality protein to feed the world's growing population, particularly with the rapid decline in wild marine fish populations.
This opening up of the future of agriculture encourages rural actors to experiment with new farming systems, using imagination, creativity and determination to replace dominant models. At the same time, low-cost mass-production systems continue on their way, with promises of a future based on green technologies. In this discussion it is important to consider what kind of sustainable development societies really want. Which innovations will help in achieving these developments?
Like the Green Revolution of the 1960s, a “Blue Revolution” has taken place in global aquaculture. Geared towards quenching the appetite of privileged consumers in the global North, it has come at a high price for the South: ecological devastation, displacement of rural subsistence farmers, and labour exploitation. The uncomfortable truth is that food security for affluent consumers depends on a foundation of social and ecological devastation in the producing countries.
Il n'est pas surprenant que les Québécois se classent dans le top 10 mondial des grands consommateurs de lait : nous en consommons en moyenne 84 litres par année. Nous avons réellement pris à cœur le slogan « Un verre de lait, c'est bien, mais deux, c'est mieux ». Mais à qui profite le second verre de lait ? À nous ou au producteur ?
Written as a stand-alone textbook for students and a useful reference for professionals in government and private agencies, academic institutions, and consultants, Ecology and Conservation of Fishes provides broad, comprehensive, and systematic coverage of all aquatic systems from the mountains to the oceans. The book begins with overview discussions on the ecology, evolution, and diversity of fishes.
This comprehensive book integrates new technology and concepts that have been developed in recent years to manage dairy farms in a profitable manner. The approach to the production of livestock and quality milk is multidisciplinary, involving nutrition, reproduction, clinical medicine, genetics, pathology, epidemiology, human resource management and economics. The book is structured by the production cycle of the dairy cow covering critical points in cow management.