IMPROVEMENT OF THE REPRODUCTIVE EFFICIENCY OF NILE TILAPIA (OREOCHROMIS NILOTICUS) AFTER FED WITH (MORINGA OLIFERA) LEAVES EXTRACTS
Adel M. Shalaby1; Ahmed A. AbdEl-Rahman1;
Emad M. Gad2 and Shimaa M. Metwally1
1Fish physiology and hatchery Department, central Laboratory for Aquaculture Research, Agriculture Research Center, Ministry of Agriculture, Egypt.
2Chemistry Department, faculty of science, Suez Canal University.
Received 10/ 7/ 2018
Accepted 28/ 8/ 2018
After 70 days of feeding Nile Tilapia (O. niloticus) with moringa leaves extracts (MLEs); the reproductive performance and physiological parameters were studied. The experiment was divided into 5 treatments, these treatments were T1 (control without any moringa extract), T2 and T3 were fed on 0.5 and 1 gm of moringa leaves ethanol extract (MLEE)/kg respectively and T4, T5 were fed on 0.5 and 1 gm of moringa leaves petroleum ether extract (MLPEE)/kg respectively. The results showed that the highest value for fry production and ovaries weights were obtained with T2 and T3. The hematological parameters red blood cell (RBC), hemoglobin (Hb) and hematocrite (Hct) in the blood of Nile Tilapia were increased significantly in all treatments compared with control group. There no significant changes in AST and ALT activities in T2 and T3 (diet contain 0.5 and 1gm of MLEE/kg) and there are significant increase in total protein all treatments as compared with control group. The results of this study showed significant increase in estradiol hormone, ovary weight and gonad somatic index in females Nile tilapia in all treatments and showed significant increases in testosterone hormone level in serum of blood of male Nile tilapia.