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Oxygen Dynamics and Growth Performances of the Nile Tilapia Under Different Areal Feed Inputs

The determination of feed management in terms of economic efficiency and feed costs along with suitable fish growth is important in farm management (Huang et al., 2015). Moreover, supplemental feeding in algal-based pond system contributed to higher growth and larger yields than chemical fertilization alone (Green, 1992 & Diana et al., 1994). Optimal feeding rates for Nile tilapia fingerlings in intensive systems are supposed to range 4-5% of biomass during the fingerlings stage when tilapia are raised in clear water system according to (Muir et al., 2000). Robinson and Li (1999) pointed out that fish cannot be fed at optimal rates during the preharvest time when fish biomass is high since high level of feed inputs will deteriorate water quality in terms of negative oxygen budget and high toxic ammonia levels. ARTICLE INFO ABSTRACT Article History: Received: Jan. 4, 2022 Accepted: Jan. 14, 2022 Online: Jan. 28, 2022 _