Publicação
Seaweeds as fish feed additives
| Resumo: | Aquaculture is becoming increasingly important to feed the growing world population. Yet, the production of fish in aquaculture systems faces several challenges, namely the vulnerability to disease outbreaks, being this one of the major problems associated with this activity. Factors such as the high density of individuals in the tanks, frequent handling and changes in temperature, water quality, poor hygiene and poor nutritional status all contribute to raising stress levels and decreasing the welfare of fish, leading to adverse effects on animal health and welfare. With increasing demand for environment friendly aquaculture, the use of prophylactic compounds in aquaculture is now widely accepted. The naturally diversity of the chemical compounds existing in marine environments is demonstrated by several examples of compounds extracted from seaweeds that are already in commercial use. The effects and benefits for the health and well-being of aquaculture fish associated with the use of additives such as immune-stimulators, and antimicrobial and antioxidant compounds is nowadays of uttermost importance. The nutritional and prebiotic effects namely due to the presence of proteins, vitamins and minerals, polysaccharides, polyunsaturated fatty acids (PUFA) and polyphenols, will also be also addressed, as well as the toxicological and potential inhibition and detrimental effects in fish. |
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| Autores principais: | Afonso, Clélia |
| Outros Autores: | Mouga, Teresa |
| Assunto: | Seaweeds Bioestimulantes |
| Ano: | 2020 |
| País: | Portugal |
| Tipo de documento: | capítulo de livro |
| Tipo de acesso: | acesso restrito |
| Instituição associada: | Instituto Politécnico de Leiria |
| Idioma: | inglês |
| Origem: | IC-online |
| Resumo: | Aquaculture is becoming increasingly important to feed the growing world population. Yet, the production of fish in aquaculture systems faces several challenges, namely the vulnerability to disease outbreaks, being this one of the major problems associated with this activity. Factors such as the high density of individuals in the tanks, frequent handling and changes in temperature, water quality, poor hygiene and poor nutritional status all contribute to raising stress levels and decreasing the welfare of fish, leading to adverse effects on animal health and welfare. With increasing demand for environment friendly aquaculture, the use of prophylactic compounds in aquaculture is now widely accepted. The naturally diversity of the chemical compounds existing in marine environments is demonstrated by several examples of compounds extracted from seaweeds that are already in commercial use. The effects and benefits for the health and well-being of aquaculture fish associated with the use of additives such as immune-stimulators, and antimicrobial and antioxidant compounds is nowadays of uttermost importance. The nutritional and prebiotic effects namely due to the presence of proteins, vitamins and minerals, polysaccharides, polyunsaturated fatty acids (PUFA) and polyphenols, will also be also addressed, as well as the toxicological and potential inhibition and detrimental effects in fish. |
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