alexa The comparative effect of fish meal and blood meal based diets on growth and survival of juvenile Tilapia (Oreochromisniloticus) in concrete tanks.
Environmental Sciences

Environmental Sciences

Journal of Ecosystem & Ecography

Author(s): DO Bekibele, EJ Ansa, OE Agokei, JY Opara, VC AlozieChidi

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Protein is the most important nutrient in fish diet. The protein in the ingredients must not only be chemically available but it must also be biologically available for the fish to utilize it. An experiment was carried out to find out the comparative effect of imported fish meal, blood meal and local fish waste based diets on the growth and survival of juvenile tilapia (O. niloticus) in concrete tank. Four diets consisting of Nigerian Institute for Oceanography and Marine Research (NIOMR) pelleted feed (40% CP) (treatment 1 and control), fresh boiled cattle blood (30% CP) (treatment 2), fresh cattle blood (30% CP) (treatment 3) and local fish waste meal (30% CP) (treatment 4) were fed to juvenile tilapia. The average initial weight of the fish was 55.24 g. The experiment was a completely randomized design in four replicates. There was no significant difference (p<0.05) in the body weight gain, average daily weight gain and average body length between the treatments. However, the relative weight gain of treatments 1 (93.69%) and 2 (80.21%) were significantly higher (p<0.05) than treatments 3 (62.37%) and 4 (64.85%). The survival was 100% in all treatments. Treatment 2 was more cost effective at 539.06 kg-1 fish, followed by 1 with 667.52. Treatments 3 and 4 had the highest at 698.20 and 718.60 kg-1 fish. The trial showed that tilapia feed processed with fresh cattle blood performed as well as imported fish meal, boiled blood and local fish waste and in addition was more cost effective.

This article was published in J Fish AquatSci and referenced in Journal of Ecosystem & Ecography

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