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Transsexual Tilapia



There was an interesting blog on the Washington Post about sex-reversed "Transsexual Tilapia."

I hadn't considered marketing fish to Whole Foods market, but it makes a lot of sense considering our overlapping target markets. I will have to have a conversation with someone over there. Related to this, I found an organic feed supplier. Combine the ideas and I should be able to provide chemical free organic clearwater male hybrid Tilapia. That sounds marketable to me.

Onto another note, I transferred 5 fish from the inside system to the outside system over the weekend. That night I had a hose slip off and pumped about half of the water out of the system. We caught it in time and I refilled the system from the water change barrel. The transfer stress followed by the sudden 50% water change stressed the fish, and 2 of them didn't make it. The others seem to be recovering okay, and the plants are growing well with the extra nutrients.


TTFN,
Ellie
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MIKESIPE@windstream.net said…
DEAR: I was possibly the second person to begin working with tilapia in 1963. When I read an article in Scientific America which introduced all male tilapia to the world. I wrote a letter to CF hickling, the author, in england who helped me get started by sending me names and addresses of researchers who he supplied to me and I contacted. I got breeders from Theophilis in 1973. I sold my business and with my mothers help bought an old fish farm in palmetto, Florida. In I began breeding producing all male tilapia in 1974. Ibegan developing pure gene lines in 1975 and now have 4 gene lines that I have created that have charteristics that aid people to produce inproved tilapia hybrids. I spent 35 years of my life selecting better breeders each week. My best hybrids now beat every other tilapia grown by producing pennyfish that grow to 1,000 grams each in 34 weeks for food and yield skinless boneless fillets that are 46%+ of the whole body weight, instead of 25% which is what my hybrids started at in 1975. This is be the best genetic inprovement ever developed in history, of any other animal on earth by Increasing the total amount of meat yielded per year by 100% from the begining of 25% yielded in 1963 to 50% by 2009.

Not a bad record for an guy with just a Bachelors degree. It took me only 50,000 hours over 100 generations over the last 37 years to accomplish this.

I am 69 and now supply consulting and breeder colonies to people who want to grow these improved tilapia which grow so fast and have been fed no hormones and therefore can be grown organically.

For more information see my web site at: cherrysnapper.com or call me at 386 454 2016.

Sincerely,

Mike Sipe
April 5, 2009 at 10:48 AM
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