Published in Scientific Papers. Series D. Animal Science, Vol. LXVI, Issue 2
Written by Nаtaliia PRYSIAZHNIUK, Anna HORCHANOK, Oksana KUZMENKO, Oksana SLOBODENIUK, Yriy FEDORUK, Olga KOLOMIITSEVA, Inna POROTIKOVA, Oleksandr MYKHALKO
A twenty-five weeks study of Black Barbus, P. nigrofasciatus fry was conducted to determine the effectiveness of various combinations of feed and its effect on growth, survival, and physiological and hematological parameters composition of fish blood. To achieve this goal, Black Barbus, P. nigrofasciatus fry were kept in three identical 120-liter aquariums, and fed different diets. The first diet included industrial feed in the form of flakes. The second diet included live microorganisms and crustaceans. The third diet was a 1:1 combination of industrial feed and live organisms. The results of the study showed a higher growth rate in Black Barbus, P. nigrofasciatus, which consumed combined feed, than peers consumed dry feed by 0.60 cm or 10.53% (p<0.05) and then peers consumed live feed by 0.20 cm or 3.28% (p<0.05). The content of hemoglobin in the blood was the same in fish of three diets. The level of erythrocytes was higher by 0.12 million×μl-1 in the blood of fry, whose diet was combined.
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