It is a vitamin, mineral, iron, selenium supplement. It has been reccommended by many top silkie breeders as a great supplement. Here is some info on it.
http://www.smartpakequine.com/pdfs/products/RedCellEngineered.pdf
And an article from the ASBC by Deb Steinberg on what she feeds her show silkies...
"Silkie Feed Blend by Deb Steinberg
We blend our own feed for our adult silkies and feed it year-round. Our chicks are fed a commercial medicated chick starter for the first 2 months, supplemented with grated carrots, hard cooked chopped eggs, greens, and an occasional yogurt-grain mixture when they get a little older. Our feed blend starts with a 20% protein commercial poultry feed. Since Purina is available in our area, we use Purina Gamebird Layena, which does not contain the marigold oil supplement that can affect white feathers. In a 5 gallon bucket, fill approximately 3/4 full with base feed and add:
1 cup crimped oats
1 cup crimped barley
1 cup wheat
1/2 cup safflower seeds
3/4 cup sunflower chips
1/2 cup flax seeds
1 scoop Manna Pro Sho-Glo
1 heaping tablespoon Brewers Yeast & Garlic Powder Mix
together well, and add:
1/2 cup wheat germ oil blend or vegetable oil
1/4 cup Red Cell
Mix together very well to distribute oil and red cell evenly. The birds also get chopped eggs and grated carrots once a week, greens like kale, collard greens, romaine lettuce as they are available, leftover tomatoes, or any fruit that is starting to go bad. In the summer, they absolutely love watermelon! I cut most of the red part off the rinds and put it in containers for the family, and feed the rinds to the silkies. Twice a month, we feed a yogurt grain mixture that the birds
love and that contains the good gut bacteria necessary for good digestion and health.
Since we have a lot of birds to feed, this is my recipe, but you can adjust it for your number of birds. 1 gallon bucket containing equal amounts of crimped oats, crimped barley and wheat 1/2 quart plain yogurt (with active cultures) 1 quart buttermilk Mix together, add a little water if necessary, and refrigerate overnight. Feed the next morning, after grain has absorbed buttermilk and yogurt."
http://www.smartpakequine.com/pdfs/products/RedCellEngineered.pdf
And an article from the ASBC by Deb Steinberg on what she feeds her show silkies...
"Silkie Feed Blend by Deb Steinberg
We blend our own feed for our adult silkies and feed it year-round. Our chicks are fed a commercial medicated chick starter for the first 2 months, supplemented with grated carrots, hard cooked chopped eggs, greens, and an occasional yogurt-grain mixture when they get a little older. Our feed blend starts with a 20% protein commercial poultry feed. Since Purina is available in our area, we use Purina Gamebird Layena, which does not contain the marigold oil supplement that can affect white feathers. In a 5 gallon bucket, fill approximately 3/4 full with base feed and add:
1 cup crimped oats
1 cup crimped barley
1 cup wheat
1/2 cup safflower seeds
3/4 cup sunflower chips
1/2 cup flax seeds
1 scoop Manna Pro Sho-Glo
1 heaping tablespoon Brewers Yeast & Garlic Powder Mix
together well, and add:
1/2 cup wheat germ oil blend or vegetable oil
1/4 cup Red Cell
Mix together very well to distribute oil and red cell evenly. The birds also get chopped eggs and grated carrots once a week, greens like kale, collard greens, romaine lettuce as they are available, leftover tomatoes, or any fruit that is starting to go bad. In the summer, they absolutely love watermelon! I cut most of the red part off the rinds and put it in containers for the family, and feed the rinds to the silkies. Twice a month, we feed a yogurt grain mixture that the birds
love and that contains the good gut bacteria necessary for good digestion and health.
Since we have a lot of birds to feed, this is my recipe, but you can adjust it for your number of birds. 1 gallon bucket containing equal amounts of crimped oats, crimped barley and wheat 1/2 quart plain yogurt (with active cultures) 1 quart buttermilk Mix together, add a little water if necessary, and refrigerate overnight. Feed the next morning, after grain has absorbed buttermilk and yogurt."