425 pages | 8 Color Illus. | 20 B/W Illus.
The main effects of Seaweed extracts (Ascophyllum, Fucus, Sargassum, Saccorhiza, Laminaria, Gelidium and others), when used as agricultural fertilizers, are better seed germination and higher quality fruit production, with longer shelf life; better use of soil nutrients; more productive crops and plants with greater resistance to unfavorable environmental conditions.
Algae also have a long history of use as animal feed. They have a highly variable composition depending on the species, collection season and habitat, and on external conditions such as water temperature, light intensity and nutrient concentration in water.
In relation to ruminal fermentation, a high variability of the digestibility values was found among seaweed species and cannot be attributed only to the composition of different nutrients of the algae. The role of marine algae for reduction of methane production is discussed with particular emphasis on novel algae-based feed strategies that target minimal methane emissions without affecting the functionality of the microbiota and overall animal productivity.
Historical Use of Seaweed as an Agricultural Fertilizer in the European Atlantic Area
Leonel Pereira and João Cotas
Macroalgae Polysaccharides in Plant Defense Responses
Roberta Paulert and Marciel João Stadnik
Marine Macroalgae: A Potential Source of Plant Growth Regulators
Emad A. Shalaby
Role of Secondary Metabolites from Seaweeds in The Context of Plant Development and Crop Production
Hossam S. El-Beltagi, Heba I. Mohamed and Maged M. Abou El-Enain
Seaweeds as Plant Biostimulants
Marcia Eugenia Amaral Carvalho and Paulo Roberto de Camargo e Castro
Seaweeds in the Control of Plant Diseases and Insects
Levi Pompermayer Machado, Maria Cândida de Godoy Gasparoto, Norival Alves Santos Filho and Ronaldo Pavarini
Algae as a Promising Feed Additive for Horses
Izabela Michalak and Krzysztof Marycz
Bioactive Algae and Cell Therapies – An Irreversible Perspective in Clinical Nutrition of Horses with Endocrine Disorders
Katarzyna Kornicka and Krzysztof Marycz
Seaweeds as Fish Feed Additives
Clélia Paulete Correia Neves Afonso and Teresa Margarida Lopes da Silva Mouga
Effects of Feeding with Seaweeds on Ruminal Fermentation and Methane Production
Ana Rita J. Cabrita, Inês M. Valente, Hugo M. Oliveira, António J. M. Fonseca and Margarida R. G. Maia