Surrogate Broodstock
 

An interesting article on transplanting reproductive cells into sterile
broodstock: http://www.the-scientist.com/news/home/53586/

Not sure if you have to register to read this.

Tim Lysyk

Surrogate Broodstock
 

On 14 Sep, 00:14, Tim Lysyk wrote:
An interesting article on transplanting reproductive cells into sterile
broodstock:http://www.the-scientist.com/news/home/53586/

Not sure if you have to register to read this.

Tim Lysyk

That is very interesting indeed. Thanks for the link.

We did some experiments fertilising sea trout and salmon eggs with
brown trout milt, and vice versa, ( when we couldn´t catch an
appropriate partner within the desired time limit) the results were
sometimes quite surprising. There appear to be a number of mechanisms
which allow for cross breeding like this, and appear at least to
produce viable offspring. Difficult to say how often it happens in the
wild, or whether many of the resulting fish are indeed then viable, or
fertile, but we got quite a few to fingerling stage. They were
released after that, and as we had no way of tracking them, we don´t
know what happened to them.

I don´t think we would be able to actually use surrogates in that way,
lacking appropriate knowledge and equipment, but it would be very
interesting indeed.

TL
MC

Surrogate Broodstock
 

On Thu, 13 Sep 2007 15:29:37 -0700, Mike
wrote:

On 14 Sep, 00:14, Tim Lysyk wrote:
An interesting article on transplanting reproductive cells into sterile
broodstock:http://www.the-scientist.com/news/home/53586/

Not sure if you have to register to read this.

Tim Lysyk

That is very interesting indeed. Thanks for the link.

We did some experiments fertilising sea trout and salmon eggs with
brown trout milt, and vice versa, ( when we couldn´t catch an
appropriate partner within the desired time limit) the results were
sometimes quite surprising. There appear to be a number of mechanisms
which allow for cross breeding like this, and appear at least to
produce viable offspring. Difficult to say how often it happens in the
wild, or whether many of the resulting fish are indeed then viable, or
fertile, but we got quite a few to fingerling stage. They were
released after that, and as we had no way of tracking them, we don´t
know what happened to them.

I don´t think we would be able to actually use surrogates in that way,
lacking appropriate knowledge and equipment, but it would be very
interesting indeed.

This reminds me of the episode of "South Park" in which the fifth
graders teach Cartman how to jack off a dog...

Oh, this ain't gonna help...just watch...,
R

Surrogate Broodstock
 

Surrogate Broodstock
 

It seems this research is being carried out in order to eventually
allow surrogate breeding of tuna, which are now endangered by
overfishing. The idea being to implant tuna eggs in mackerel, and farm
the result. Nobody has as yet addressed the matter of what these fish
will be fed on. More massive quantities of wild marine protein in the
form of fishmeal, which is already causing severe environmental
problems.

One suggestion I heard is that dead human bodies might be used as
feed, as they do contain a lot of the required material, although
there are problems with this. Many fish can not assimilate some things
very well, or even at all.

One is also bound to wonder what PSE ( Piscine spongiform
encephalopathy) will eventually look like? Or even consider the
pleasant pastel shades of Soylent Green waiting for the remains of the
human race.

TL
MC