MUSCLE PROTEIN AND LIVER ESTERASES BANDING PATTERNS AS BIOCHEMICAL MARKERS TO DETERMINE GENETIC DIVERSITY IN EGYPTIAN POPULATIONS OF Tilapia SPECIES

Abstract

ilapia is the most species for fresh water aquaculture and its original habitat is Africa and the southwestern Middle East, even spread in worldwide. It is known as one of the main sources of animal protein in the future. Usually live in fresh water, also can live in different salt content of the water. It has a strong adaptability, in the waters of an area of narrow also can breed Badawy (1998), even in the rice fields to grow and have strong adaptability to less dissolved oxygen in the water. The vast majority of tilapia is omnivorous, eating water plants and debris (