Effects of Exogenous Hormone Injection on Growth and Maturation of Mugil Cephalus Oocytes in Captivity
Mugil cephalus (gray mullet) is a euryhaline fish that is cultured successfully in fresh water, brackish water and sea water. However, the culture of this fish is closely dependent on the availability of wild fry. The fluctuating amounts and capricious nature of the fry supply in the last few years has prompted investigation of artificial spawning of broodstock in captivity and mass propagation of the larvae (Shehadeh and Ellis, 1970; Kraul, 1983; Lee et al., 1987; Tamaru et al., 1989; Lee et al., 1992). Most investigations have concentrated on the induction of spawning under natural conditions at the peak of the fish’s normal breeding season (Kuo et al., 1973; Kulikova and Gnatchenko, 1987; Suzuki et al., 1991).
KeywordsHuman Chorionic Gonadotropin Round Goby Oocyte Growth Oocyte Diameter Grey Mullet
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- Kulikova, N.I. (1985): The effect of chorionic gonadotropin on growth and maturation of the oocytes of the round goby, Neogobius melanostomus. J. Ichthyology, 25:(2): 86–98.Google Scholar
- Kulikova, N.I. and Gnatchenko, L.G. (1987): Response of prespawning female black sea striped mullet, Mugil cephalus, to chorionic gonadotropin. J. Ichthyology, 27(3): 44–53.Google Scholar
- Mallory, F.B. (1938): “Pathological Technique”. W.B. Saunders Company, Philadelphia.Google Scholar
- Mousa, MA.ELW. (1994): Biological studies on the reproduction of mullet (Mugil cephalus L.) in Egypt. Ph.D thesis submitted to Faculty of science, Ain shams University, 278 pp.Google Scholar
- Sokal, R.R. and Rohlf, F.J. (1969): Biometry. Freeman and Company, San Francisco, CA, 776 pp.Google Scholar
- Suzuki, K; Asahina, K; Tamaru, C.S.; Lee, C.S. and Inano, H. (1991): Biosynthesis of 17α,-20β-Dihydroxy-4-pregnen-3-one in the ovaries of grey mullet (Mugil cephalus) during induced ovulation by carp pituitary homogenates and an LHRH analogue. Gen. Comp. Endocrinol., 84: 215–221.CrossRefGoogle Scholar