Author(s): Amani K Mohammed, Zuheir N Mahmoud and Abdalla N Elawad

Abstract: Based on the current demand on fish as food, marine fishes of the Sudan have been arbitrary divided into first, second and third grade fish. Examples of these are the red emperor (Plectroponus moculates) grade I, mullet fish (Plectroponus moculates) as grade II and unicorn fish (Naso unicornis) as grade III. This subjective grading, need to be evaluated on grounds of organo-leptic tests, gross chemical and body parts analysis and inclusion in experimentally designed feeding tests. The mean value and range of moisture, protein, fat and ash was determined and compared for the three species. The highest calorific value was (232.08) in C. crisbis and the lowest (144.2) in P. maculatus. The calorific value was expressed as a calories per percent of protein content plus calories per percent of fat content. The highest calorific value was (232.08) in C. crisbis and the lowest (144.2) in P. maculatus. The gross chemical composition was comparable between the three groups in ash content, but showed significant variability within moisture, within protein and in fat. The mean body weight in each cell in a column (feed 1, 2, 3 and the control) was based on a triplicate and they were compared using the least significant difference (LSD) test. Very highly significant growth correlation (p

DOI: 10.22271/fish.2022.v10.i5b.2738

Pages: 138-146  |  358 Views  112 Downloads

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