Available information on the advantages and limitations of the techniques of hybridization
and hormone treatment for the production of all male tilapias is summarized. The critical …

Supermale (YY–♂) Oreochromis mossambicus was produced for the first time by judiciously
combining the endocrine sex reversal technique with selective breeding or gynogenetic …

The processes of sex determination and differentiation are labile in teleosts and are
amenable for manipulations by ploidy during fertilization, hormone during hatching …

Hormonal induction of sex reversal is possible in 50 species. Dietary administration may be
avoided by adopting immersion technique. Neuropeptide Y, aromatase inhibitor and …

Due to non-visibility of egg nucleus, the established scheme of nuclear manipulation to
clone fish may prove a difficult task. However, fishes are amenable for interspecific …

0 62-92007 116 6652 0 85-1737 94-9865 45 59-17703 112-2-183 45 79-1285 92-1337 90
57-0270 109-4838 90 74-6924 91-5340 135 56-3157 109-1483 135 73-9306 91-3635 180 …

Two masculinizing hormones (17α-methyltestosterone (MT) and 17α-ethynyltestosterone
(ET) and two feminizing hormones (17β estradiol (E) and diethylstilbestrol (DES)) were …

To ensure masculinization and normal growth of the obligately air-breathing fighting fish
Betta splendens, norethindrone acetate (NE) was administered through discrete immersions …

The majority of fishes breed at a particular time of the year and the seasonal reproductive
cycle is precisely maintained by endocrine cycle. Environmental stimuli like photoperiod and …

In fishes the hormonal induction of masculinization is a more stressful process (as
evidenced by higher mortality) than that of feminization. This is further evidenced from …