Aquaculture In The World

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Aquaculture is one of the fast rising systems in the world, which has developed as an industry likely to supply protein rich food all over the world (Prasad. 1996). The demand for animal protein has gone far away beyond source as a result of the fast progression of human population in many states of the world, particularly in the emerging countries. A serious requirement is therefore essential to increase the production of protein causes. Nowadays, aquaculture is one of the fastest increasing food production sector and a progressively significant option in animal protein sources in the world (Ashraf et al., 2012). Although, fish is considered as an significant protein source in human diet. Over the previous decade, the portions of per capita…show more content…
The shortage of high quality fishmeal and the wide gap in demand and supply for this resource are enhancing its price and can ultimately hamper further growth of aquaculture (Tacon et al., 1999; Siddhuraju et al., 2001). Feed cost is considered to be the highest recurrent cost in aquaculture, frequently ranging from 30% to 60%, depending on the strength of the operation (De Silva et al., 1995). Although the proper development of fish is depending mostly upon the quantity and value of food having all the vital nutrients, there is a limit of maximum growth for fish, even if best amount of balanced nutrients is provided. Outside this physiological limit, progress may be possible either by genetic operation or by management of growth promoters (Matty, 1986). Probiotics are live bacteria, which have helpful effects on the host by adapting the host-associated or ambient microbial public of the gastrointestinal tract as a result assisting better feed utilization, enhacing the host response towards disease and improving the value of its ambient situation (Verschuere et al.,…show more content…
Possible use of baker’s yeast in fish diets has many advantages. Firstly, it can be produced rapidly, easily and reasonably and, at the same time, it is very stable. Secondly, it can be reprocessed from other industries and is also a natural substance with no negative effects both to the animals and to the environment (Tewary and Patra, 2011). The oral administration or injection of the S. cerevisiae has been revealed to increase growth indication of tilapia and carp (Korkmaz and Cakirogullari, 2011; He et al.,

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