http://www.abc.net.au/news/2016-03-12/marking-male-embroys-a-solution-to-egg-industry-dilemma/7236322

Marking male embryos could hold solution to chick culling ‘ethical dilemma’ in global egg industry

Keith Emerson, co-founder of Emerson, Lake, and Palmer, has died aged 72.

<sigh> And that was meant to be in the other thread. Sorry.

btm said:

<sigh> And that was meant to be in the other thread. Sorry.

Not to worry.

With the eggs that are removed perhaps the eggs if partially developed could be transformed into a protein pellet for livestock?

No culling and no waste of resources that way , cost effective and potentially lucritive add on market product for the industry to fund the implementation of the research findings.

monkey skipper said:

http://www.abc.net.au/news/2016-03-12/marking-male-embroys-a-solution-to-egg-industry-dilemma/7236322

Marking male embryos could hold solution to chick culling ‘ethical dilemma’ in global egg industry

Dr Tizard said an embryo could be micro-injected and a green fluorescent protein (GFP) gene placed on the male chromosome.

That would work. How many embryos would need to be micro-injected? You’d need two generations of males wouldn’t you? First generation of males the embryo is microinjected leading to some cells with GFP. Some of the male offspring of the second generation will then have all cells containing GFP. Then you use those marked second generation males to create marked eggs, where all of the males in the eggs will be marked.

GFP has been used for generating transgenic species since 1994, it’s surprising that it’s taken so long. From wikipedia:

“Alba, a green-fluorescent rabbit, was created by a French laboratory commissioned by Eduardo Kac using GFP for purposes of art and social commentary. The US company Yorktown Technologies markets to aquarium shops green fluorescent zebrafish (GloFish) that were initially developed in 1999 to detect pollution in waterways. NeonPets, a US-based company has marketed green fluorescent mice to the pet industry as NeonMice. Green fluorescent pigs, known as Noels, were bred by a group of researchers led by Wu Shinn-Chih at the Department of Animal Science and Technology at National Taiwan University. A Japanese-American Team created green-fluorescent cats as proof of concept to use them potentially as model organisms for diseases, particularly HIV. In 2009 a South Korean team from Seoul National University bred the first transgenic beagles with fibroblast cells from sea anemones. The dogs give off a red fluorescent light, and they are meant to allow scientists to study the genes that cause human diseases like narcolepsy and blindness.”