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This is a summary of what most of the written material I have seen says.
Re algae - yes some algae are a good source - what fish eat - the beginings of the food chain. I have heard varying reports about how commercially effective algae is, and how easily it can be produced and in what quantity. I have seen reports there are several companies looking at the subject. Yes I think there would be a market for it and foods enhanced with it. I have not seen it commonly available in health food stores. I would be interested in any information as to how commercially possible it would be to produce it in sufficient quantity as a human food supplement.
Eyes and brain - it is commonly reported that omega three and particularly DHA is essential to foetal and ongoing developement of brain and sight amongst other things. Both are reported as essential but DHA is probably the more important and commonly found as a consitutent element of several human tissues particularly the brain and eye.
Ratio - the raio selected for feeding pigs I would image is determined by economics v production weight. I would imagagine a wild pig would have a raition closer to 1:1 because of its wide range of food but that is only a guess.
RB
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