mattrox Posted November 14, 2011 Share Posted November 14, 2011 http://www.aquacultu.../files/AC04.pdfWhile cruising through this paper after an article on garlic, I found some interesting reading.This compares feeding fish a reference diet then adding herring meal (HM) at a rate of 10, 20 30, 40, 50%. ADC it the measure of digestability.Composition(g/100 g DM)Diet Reference Diet HM10 HM20 HM30 HM40 HM50 Protein 50.64 53.96 56.91 59.95 63.28 66.53Cr2O3 1.04 0.99 0.96 0.76 0.69 0.56FecesProtein 12.67 14.80 17.15 19.66 21.05 21.39Cr2O3 5.05 5.13 5.35 4.51 4.14 3.17Protein ADC (%) 94.8 94.7 94.6 94.5 94.4 94.4It is concluded that the incorporation level of herring meal intothe reference diet does not affect the protein ADC values in juvenile haddock diets and that the two commonly used equations forcalculating protein ADC result in the same values for highly digestible feed ingredients like herring meal.- My comment While herring meal is a quality source of protein having it as opposed to other protein sources isn't as important as it is made out to be, as long as there is protien in the diet (from aquatic sources). And a diet too high in protein is a waste. Link to comment Share on other sites More sharing options...
Ducksta Posted November 15, 2011 Share Posted November 15, 2011 Same as in humans really. Over supply of protein in the body just ends up as waste.I believe in a resting human (ie. someone who hasn't had a strenuous workout, and doesn't have a lot of muscle repair occurring inside the body) the amount of protein you actually process is something like 20grams.It is why atkins diets work to drop weight, bodies can't store protein, so anything not immediately used is flushed right on through. Link to comment Share on other sites More sharing options...
mattrox Posted November 15, 2011 Author Share Posted November 15, 2011 I found it really interesting with respect to the conversation about protien sources in fish foods. It seems the total protein content is more important than protein source. Not disputing that herring meal is an outstanding protein source, but it's importance may be over emphasised. Link to comment Share on other sites More sharing options...
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