I found this - but I understand sometimes things slip by us. Posts 9 and 10.
Last edited:
Injured baby duckling!! Help!!
- Thread starter sydney202
- Start date
I just put a tablespoon of brewer's yeast for each cup of food. I can't figure out the math.
Found this:
NIACIN (NICOTINIC ACID) DEFICIENCY
There is considerable evidence that poultry—even chick and turkey embryos—can synthesize niacin, but at a rate that is too slow for optimal growth. It has been claimed that a marked deficiency of niacin cannot occur in chickens unless there is a deficiency of tryptophan, a niacin precursor.
Niacin deficiency is characterized by severe metabolic disorders in the skin and digestive organs. The first signs are usually loss of appetite, retarded growth, general weakness, and diarrhea. There is conflicting evidence as to whether broilers respond, in terms of growth and feed utilization, to niacin supplementation. However, it has been clearly established that chicks do have a requirement for niacin. Deficiency produces enlargement of the tibiotarsal joint, bowing of the legs, poor feathering, and dermatitis on the head and feet.
Niacin deficiency in chicks can also result in “black tongue.” At ~2 wk of age, the tongue, oral cavity, and esophagus become distinctly inflamed. In the niacin-deficient hen, weight loss, reduced egg production, and a marked decrease in hatchability can result. Turkeys, ducks, pheasants, and goslings are much more severely affected by niacin deficiency than are chickens. Their apparently higher requirements are likely related to their less efficient conversion of tryptophan to niacin. Ducks and turkeys with a niacin deficiency show a severe bowing of the legs and an enlargement of the hock joint. The main difference between the leg seen in niacin deficiency and perosis seen in manganese and choline deficiency is that with niacin deficiency the Achilles tendon seldom slips from its condyles.
Niacin deficiency in chickens may be prevented by feeding a diet that contains ≥30 mg niacin/kg; however, many nutritionists recommend 2–2.5 times as much. An allowance of 55–70 mg/kg of feed appears to be satisfactory for ducks, geese, and turkeys. Ample niacin should be provided in poultry diets so that the birds do not have to synthesize it from tryptophan.
No clue what that means in terms of daily requirements, but will look into it when I have a chance.
-Kathy
NIACIN (NICOTINIC ACID) DEFICIENCY
There is considerable evidence that poultry—even chick and turkey embryos—can synthesize niacin, but at a rate that is too slow for optimal growth. It has been claimed that a marked deficiency of niacin cannot occur in chickens unless there is a deficiency of tryptophan, a niacin precursor.
Niacin deficiency is characterized by severe metabolic disorders in the skin and digestive organs. The first signs are usually loss of appetite, retarded growth, general weakness, and diarrhea. There is conflicting evidence as to whether broilers respond, in terms of growth and feed utilization, to niacin supplementation. However, it has been clearly established that chicks do have a requirement for niacin. Deficiency produces enlargement of the tibiotarsal joint, bowing of the legs, poor feathering, and dermatitis on the head and feet.
Niacin deficiency in chicks can also result in “black tongue.” At ~2 wk of age, the tongue, oral cavity, and esophagus become distinctly inflamed. In the niacin-deficient hen, weight loss, reduced egg production, and a marked decrease in hatchability can result. Turkeys, ducks, pheasants, and goslings are much more severely affected by niacin deficiency than are chickens. Their apparently higher requirements are likely related to their less efficient conversion of tryptophan to niacin. Ducks and turkeys with a niacin deficiency show a severe bowing of the legs and an enlargement of the hock joint. The main difference between the leg seen in niacin deficiency and perosis seen in manganese and choline deficiency is that with niacin deficiency the Achilles tendon seldom slips from its condyles.
Niacin deficiency in chickens may be prevented by feeding a diet that contains ≥30 mg niacin/kg; however, many nutritionists recommend 2–2.5 times as much. An allowance of 55–70 mg/kg of feed appears to be satisfactory for ducks, geese, and turkeys. Ample niacin should be provided in poultry diets so that the birds do not have to synthesize it from tryptophan.
No clue what that means in terms of daily requirements, but will look into it when I have a chance.
-Kathy
Yes, I run across percentages - as in how much per kg of feed, how much per gallon - but haven't found the mg/kb body weight numbers. So my estimates are based on my recollection of how much my ducklings actually drank, as opposed to splashed.
The math is making your head hurt? you have to be kidding, you k who can figure out dosages so quick for the rest of us.
And that is when we notice smoke coming out of our computers? because you are thinking about it. lol
and here I thought it was just so easy for you.
Will it hurt to put brewers yeast in the water for the chicks if the ducks share the same water?
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