Khalid William Farnar^*(1)

(1). Department of Marine Vertebrate, Marine Science Center, University of Basrah, Basrah, Iraq.

(*Corresponding author: khaled_msc62@yahoo.com).

Received: 12/06/2019                                Accepted: 03/08/2019

Abstract

The replacement effect of soybeans by potatoes peels and eggplant peels was studied to feed the common carp Cyprinus carpio L. Juveniles under laboratory conditions in Marine Science Center, University of Basrah, with an initial length and weight of 2.2 ± 0.1405 cm and 1.819 ± 0.0753 g respectively, the experiment continued for a period of 60 days starting from April 2017. The aquariums were equipped with air pumps for 24 hours throughout the day, and the fishes were fed two meals daily. The environmental parameters within the limits appropriate for the growth of carp, the results showed a significant statistical difference in growth rates between fishes in experiment aquariums where the highest weight recorded at the end of the experiment for the Juveniles in the aquarium B which was 26.471 g, followed by Juveniles in the aquarium D was 21.453 g then the fishes in the aquarium C amounted to 18.186 g and finally the Juveniles in the aquarium A which recorded 16.984 g. The study showed that the replacement of soybeans by potatoes peels gave the best increase in weight at the end of the experiment as in the aquarium B which was 8.642 g/week compared with the aquarium D, C and A, that gave 7.371 and 5.731 and 5.367 g/week respectively, and with a daily weight increase during the experiment period amounted to 0.253, 0.409, 0.275 and 0.327g/day of experiment aquariums A, B, C and D respectively.

Key words: Soybeans, Potatoes peels, Eggplant peels, C. carpio.

Full paper in English: PDF