Effect of adding Eruca sativa in common carp on growth criteria, feed utilization and chemical composition

Abstract

To examine the effects of adding seeds powder and rocket Eruca sativa leaves to the diets of common carp Cyprinus carpio L. fish with percentages of 1, 2, and 3% of the total diet (the first, second, and third treatments), as well as the addition of rocket leaf powder to the fourth, fifth, and sixth diets, respectively, While the control diet, was empty of these additions (the seventh diet). Each treatment was replicated three times. These diets were used to feed common carp for 56 days. According to the statistical analysis's research results, the fish fed the fourth diet significantly superior surpassed the control diet and all other experimental diets in terms of growth criteria represented by the final weight, total weight gain, daily growth rate, relative, specific growth rate, and in terms of feed utilization: feed conversion ratio, feeding efficiency ratio and protein efficiency ratio. Except for the sixth treatment, the fed fish outperformed all other experimental treatments, and the second and fourth treatments regarding retained protein and protein production value. Fish were fed as the fifth treatment, significantly superior to the control diet. These results in the highest percentage of dry matter and crude protein for the edible portion of the body. Feeding fish on the fourth treatment resulted in the lowest proportion of ether extract, much lower than all the experimental diets.