2006-10-05 16:50:46 · 5 answers · asked by LewLew 1 in Science & Mathematics ➔ Zoology
It refers to how many milligrams of a substance (either a drug or a contaminant) per kilogram of live weight in an animal or person.
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37 lbs = 16.78 kg
Multiply the mg per kg by 16.78 and that will give you the total amount of the drug or contaminant in the whole animal.
2006-10-05 17:05:08 · answer #1 · answered by Anonymous · 0⤊ 0⤋
Don't quite understand what you don't understand. This is another way of stating it: 0.5 to 2.5 parts per million (mass per mass solution/mix). There are 1000 000 milligrams in one kilogram. That's why almost all countries use the metric system (some still need to catch up) - everything is a power of ten of everything else.
2006-10-06 08:28:51 · answer #2 · answered by Vango 5 · 1⤊ 0⤋
This is a mass fraction. Since mg and kg are both units of weight, the unit mg/kg is a unitless fraction.
Otherwise, it's simple unit cancellation.
For example:
a piece of metal contains 0.5 mg/kg of gold.
How many mg of gold are there in 1 kg of the metal
1 kg * (0.5mg/kg) = 0.5 mg of gold
2006-10-06 00:00:24 · answer #3 · answered by tedhyu 5 · 0⤊ 1⤋
Some powder like substance to be mixed again in some powder like substance.The quantity of the first in one Kilogram of the second. Either mixed or to be mixed as a dilution or a combination.
2006-10-06 00:16:17 · answer #4 · answered by Anonymous · 0⤊ 1⤋
0.5-.25 mg per Kg :(
2006-10-05 23:58:32 · answer #5 · answered by Nikhil R 3 · 0⤊ 1⤋