Recent content by U_Stormcrow

  1. U_Stormcrow

    new research debunks trad views on nutrition

    And sadly, even US feed labels don't often disclose the energy density of the feed, whether AME, AMEn, MKe, or some other measure.
  2. U_Stormcrow

    new research debunks trad views on nutrition

    I'll have to watch the videos. I'm a proponent of certain AAs at levels normally associated with above minimum recommended CP levels and I'd readily agree that focusing solely on CP is both the wrong measure and like filling your Porsche w good gas but no coolant, oil, transmission fluid, or...
  3. U_Stormcrow

    new research debunks trad views on nutrition

    I'm not following your math here, and I'm not certain which feed you are talking about - I can make some generally accurate guesstimates about typical US feeds, but I am MUCH MUCH MUCH worse about making those guesses w/ the common feeds I see used on your side of the pond. If we get deep...
  4. U_Stormcrow

    new research debunks trad views on nutrition

    Don't let the Perfect be the enemy of the Good. I certainly don't. Though I do feel that I've read (and continue to read) enough that I have a good understanding of the tradeoffs I'm making, even if they can't be precisely quantified. You might enjoy this, too. Its both very general and...
  5. U_Stormcrow

    new research debunks trad views on nutrition

    and to get back on track, since we are talking about fat and protein and energy in diets, I dug up this old study (pdf). It has problems. Too few birds, too short of study period, primarily. Doesn't address AA balance at all - which would probably explain some of the less obvious results -...
  6. U_Stormcrow

    new research debunks trad views on nutrition

    Sadly, and with apologies for the hijack, most of my days start w/ drugs. three cups of back coffee. Then I grumble till lunch. 0/10, do not recommend. But thank you for the suggestion
  7. U_Stormcrow

    new research debunks trad views on nutrition

    Sure, but that's really an MKe consideration, not a protein consideration - except insofar as daily protein intake is a part of that formula (together with carbs and fat). Protein conversion to fat is also a highly inefficient process (generates a lot of heat) as compared to converting carbs to...
  8. U_Stormcrow

    new research debunks trad views on nutrition

    One of the reasons how to feed chickens is among the best studied subjects on the planet is because its key to feeding large amount of humans AND because chickens are used as human analogs for health studies. I also do better over the course of the day w/ protein first thing in the morning, not...
  9. U_Stormcrow

    new research debunks trad views on nutrition

    and in the case of "meat birds" like the Supermarket Frankenchicken, the Cx ("CornishX"), needs for Met and Lysine are both much higher to support those freakish rates of growth. Among other things, Met is key in connective tissues - skin, tendons, the digestive tract and Lysine is key to...
  10. U_Stormcrow

    new research debunks trad views on nutrition

    Yes, this is absolutely true - but that fat can't be turned back into critical AAs, just used to meet energy needs.
  11. U_Stormcrow

    new research debunks trad views on nutrition

    Depends on age, breed, purpose. In the case of dual purpose birds (barely studied), we have to make educated guesses. In general, based on a 100g diet, a Met inclusion of 0.3% is the old recommend for an adult production hen under commercial condition in her prime production period (generally...
  12. U_Stormcrow

    new research debunks trad views on nutrition

    Some reading.
  13. U_Stormcrow

    new research debunks trad views on nutrition

    Excess Protein is largely excreted as nitrogen compounds daily. Its not something birds store well (unlike excess dietary energy as fat) - which is why getting the right balance of AAs daily is more important than getting the minimum amount of calcium or dietary energy (as two common examples)...
  14. U_Stormcrow

    new research debunks trad views on nutrition

    I'll dig it up. The early cafeteria studies support your claim - I've repeated it myself and linked those studies approvingly. There are a few more recent studies that found less than optimal AA intake where the "cafeteria" provided high energy options holding key aminos. I read it as a...
  15. U_Stormcrow

    new research debunks trad views on nutrition

    There is also the complication that: a) Not all protein is "the same", and there are a handful of studies showing that chickens, at least, can have difficulty in optimizing their critical amino acid intakes in the presence of a cafe of moderate to high calorie foods and b) studies have shown...
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