1.2 BIOCHEMIACL POLYMORPHYSM INVESTIGATION
These investigation are aimed at finding and using genetic markers for character and identification of fish populations and individuals. Such markers are the enzyme and proteins, including transferrins.the instrucment foer this method is th polyyacrilanad gel – electrophoretic equipment which was ordered.
2.8 BETTER TOLERANCE OF WATER SALINITY FOR BRACKISH WATER FISH CULTURE
Good results have been achieved so far such as;
- Analysis of chromosome sets and karyotypes
- Crossing the species, using artificial propagation
- Studying the fish species character, behaviour and genetic structures.
- Rearing the hybrids in the most suitable environment for their expected habit.
- Describing the new hybrids morphological, biological and economic characteristics.
- Stabilizing the new character with inbreeding or back- crossing with the closer parental species which are similar in their main characteristics to the new hybrids.
3.0 CONCLUSION /RECOMMENDATION
The birth of genetics brought to the understanding of human resemblance, population, hereditary issues and their connectivity from generation to generation. Genetics findings have no doubt, solved and answered so many questions such as nutrition, biology and physiology of cretures. It has helped in identifying and improving the biology of human, animal and plant nature. Advances in fish genetics has led to the enhancement and achievement of desired characters in fish such as production of quality fish for consumption, breeding and resistance purposes, hybridization, controlled characters, mono sex cryopreservation of gametes etc. with this, one is able to understand the rudiments and principle of genetics.
I recommend that more incentives should be provided especially in the area of funding for more sophisticated genetic researches and instrumentations .
Bahacharyas; Dasgupta, S, Daha, M, and Basyd,2002 Biotechnology input in Fish
Breeding. Indian Journal of biotechnology, 1:29-38.
Gardner J.E ,Michael J.S. and Sunstad P.D, (1984) principles of genetics eigth
edition, P.8-17,P625-635, Wiley India Pvt Ltd.
Hew, C. Fletcher, G. and Davies, P.L,1995. Transgenic salmon, tailoring the genome
for food production. J. fish Biol, 47:1-9.
Ibe S.N,(1998).Introduction to genetics and Animal Breeding Longman P.1-2,P.129-
134.Bencod press limited Lagos.
Karunasagar, I, and Karunasagar, I, 1999-Dianosis treatment and prevent of
microbial disease of fish and shell fish. Curorsc,76:387-399.
Monaghan, F. and Corcos, A. (1984) On The Origins Of The Mendelian Laws. The
Journal of Heredity, 75:PP 67-69.
Pandian, T. J. and Sheela, S.G. 1995. Hormonal induction of sex reversal
Sakai, M, 1999.Current research status of fish immuonostimulants, Aquaculture,
Southern, E.M.(1975) Detection of Specific Sequences among DNA fragments
separated by gel electrophoresis. J.mol.Biol.98:PP 503-517.
Wright, S.(1931) Evolution in Mendelian Populations. Genetics, 16:PP97-159.
[zotpressInTextBib style=”apa” sortby=”