By Cheng-Sheng Lee
Fish meals should be the finding out issue among a powerful and fit farmed fish inhabitants and occasional aquaculture construction. In an age the place chemical substances and antibiotics are lower than better scrutiny than ever, a robust realizing of the position of food and feed ingredients is key within the aquaculture undefined.
Dietary food, ingredients and Fish Health is a complete overview of nutritional meals, antinutritional components and pollutants, and non-nutrient nutritional ingredients, and their results on fish functionality and immune procedure functionality, in addition to total health.
The ebook opens with an outline of fish immune structures and well-being. next chapters delve into proteins and amino acids, lipids and fatty acids, carbohydrates, beta glucans, supplements, minerals, antinutrients, mycotoxins, nucleotides, prebiotics, probiotics, natural acids and their salts, and plant extracts and their affects on fish healthiness, development, and improvement. The textual content then concludes with a bankruptcy on feeding practices.
Authored by way of leaders in aquaculture, Dietary meals, ingredients and Fish Health should be a useful source to graduate scholars, researchers and execs alike.
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Additional info for Dietary nutrients, additives, and fish health
2007; Martins et al. 2011). Protozoan Diseases Diseases caused by protozoans are among the most significant of all parasitic diseases. Cultured fish losses due to parasites are mainly caused by protozoan Overview of Fish Immune System and Infectious Diseases parasites (Rogers 1985). In freshwater fish, white spot disease caused by Ichthyophthirius multifiliis (Ich), whirling disease, and proliferative gill disease caused by Myxozoan protozoan are some of the severe parasitic diseases that often lead to significant losses of cultured fish.
The spread of the whirling disease parasite has been attributed to transfer of live fish (Hoffman 1990; Bartholomew and Reno 2002). Myxobolus cerebralis has a two-host life cycle that involves fish and an alternate host: a common bottom-dwelling tubifex worm. Myxobolus cerebralis mainly infects farmed salmonid fish, but is also found in wild fish populations. When an infected fish dies, large numbers of spores are released into the water and become myxospores. The myxospores are then ingested by the tubifex worm and develop into infective triactinomyxon (TAM).
Five bryozoan species belonging to the genera Fredericella and Plumatella have been found to develop infection with T. bryosalmonae, resulting in the development of spherical sacs that release spores (Anderson et al. 1999). These spores are released into the surrounding water where they can infect salmonid fish. PKD primarily occurs during summer (April–June), and mortalities may range from 10% to 95% in infected populations (Noga 1996). T. bryosalmonae affects mainly the kidney and spleen but can become systemic in most susceptible fish hosts.
Dietary nutrients, additives, and fish health by Cheng-Sheng Lee