Nutritional value of "fish weed" from the natural ponds
2016
Kormanjoš, Šandor (Institute of Food Technology, Novi Sad (Serbia)) | Popović, Sanja (Institute of Food Technology, Novi Sad (Serbia)) | Ristić, Milutin (Institute of Food Technology, Novi Sad (Serbia)) | Okanović, Đorđe (Institute of Food Technology, Novi Sad (Serbia)) | Tasić, Tatjana (Institute of Food Technology, Novi Sad (Serbia)) | Ikonić, Predrag (Institute of Food Technology, Novi Sad (Serbia)) | Šojić, Branislav (Faculty of Technology, Novi Sad (Serbia))
Since animal production systems are important contributors in global food chain with emphasis on the production of healthy and high quality food for humans, animal nutrition have become increasingly critical component in this chain. The main problem in animal nutrition is providing high-quality protein feed. Therefore, finding new sources of proteins is a goal of scientists from around the world. In fish naturally-breeding systems, significant amounts of waste materials, so called "fish weed", remains after fish production and could be considered as a potential nutrient in animal feed. The aim of the present study was to investigate the chemical and nutritional characteristics of byproduct which stands out after fish production. It has been found that these potential nutrient contain significant amount of proteins (60.22% DM) which have high biological value, due to the high level of protein digestibility (95.80%), and high content of essential and semi-essential amino acids. Based on the obtained results, it could be concluded that fish unsuitable for human consumption presents high valuable protein nutrient convenient for the preparation of animal feed. However, the high content of water (76.42%) in "fish weed" indicates that investigated raw material needs to be treated by drying or extrusion in order to obtain feedstuff favorable for storage
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