Balık üretiminden kaynaklanan kirlilik ve çözüm yolları
Loading...
Date
2006
Journal Title
Journal ISSN
Volume Title
Publisher
Ege Üniversitesi Su Ürünleri Fakültesi Dergisi
Abstract
Aquaculture pollution mainly originates from the physical and chemical
characteristics of feed and the applied feeding management. The production of fish feed by using the extruder technology prevents
the dust and broken particles formation by enhancing the water stability of feed. Feed loss is prevented by controlling the sinking
rates of feed. By using the appropriate mechanical equipment during feed production, the feed density can be adjusted according to
the freshwater and marine environment. Instead of oil spraying, the use of vacuum coating for oil addition of feed prevents oil
leakage into the aquatic environment. The choice of highly digestible feed ingredients with low cellulose content and the application
of heat treatment (85 – 90 °C) for an appropriate period of time to feed in the preconditioner decreases fecal waste production by
increasing carbohydrate digestibility. The balancing of the Nitrogen: Phosphorus and Protein: Energy ratios in the feed formulations
provide the decreasing of the amount of dissolved ammonium, and phosphorus released to the environment. The pollution, due to
fish feeding, may be also minimized through developing feeding tables according to the Thermal Growth Coefficient (TGC) of fish
based on the characteristics of the fish farms
Description
Keywords
Pollution, aquaculture, fish feed, feeding management.