COMPARATIVE STUDIES OF SOLUBLE PROTEIN USING ISOELECTRIC FOCUSING (IEF) IN GONADS AND PITUITARY GLANDS OF FEMALE MUGIL CEPHALUS INNATURAL HABITAT AND CAPTIVITY DURING REPRODUCTIVE CYCLE

COMPARATIVE STUDIES OF SOLUBLE PROTEIN USING

ISOELECTRIC FOCUSING (IEF) IN GONADS AND PITUITARY

GLANDS OF FEMALE MUGIL CEPHALUS INNATURAL HABITAT

AND CAPTIVITY DURING REPRODUCTIVE CYCLE

By
8.8. ASSEM*; M.A. ABDO AND M.A. MOUSA
*National Institute ofOceanography and Fisheries, Alexandria – Egypt.
Key words: Biochemistry, Endocrinology, Grey Mullet.
ABSTRACT
Soluble protein of gonads and pituitary glands offemale Mugil
cephalus in different stages ofmaturity in both natural habitat (saline
.water) and captivity (freshwater), was investigated using isoelectric
focusing. The electrophoretic patterns of ovary: protein showed
differences between the two localities in terms ofmaturation stages.
The pituitary gland protein for both saline andfreshwater showed
dimorphism in terms of isoelectric focusing. The stages ofmaturity
differed in their protein pattern from one to another in the
arrangement and number of intensively colored band. There are
specific bands in each stage of maturity for ovaries andpituitary
glands.